Infobox Software name AdvancedQueryTool screenshot caption developer Cardett latest release version 8.1.5 latest release date January 3, 2007 operating system Microsoft Windows genre Software website http www.querytool.com querytool.com AdvancedQueryTool AQT is a Microsoft Windows based SQL query software tool used to administer and execute queries against the most common database management systems. AQT is created by a small New Zealand software company, Cardett , and is distributed and supported through the Internet. AQT is designed for use by database administrators and developers. Architecture AQT is a Windows application that uses ODBC to access the data, but is aware of the catalog structures of most common databases. This sets it apart from most software tools that use ODBC. The ODBC catalog is very slow on large systems, but AQT directly queries the catalog meta data of well known data base management systems, which makes it very fast for exploring the data structures of enterprise size data bases. Catalog awareness is accomplished by using configuration files for each flavor of DBMS to define the queries to run against the data base catalog meta data. There are also separate configuration files for the administration component. Data Base Management Systems of which AQT .... Data Window In addition to simply displaying the results of a query, the data window allows the updating of the data in the window. The query results can also be exported to various file formats including ... window. GUI Query Builder The GUI Query Builder allows building SQL queries with point and click ... a data loader tool that makes it easy to load data into tables from various sources. The sources ... Comma separated values CSV file, a flat file, or even a complicated query run against multiple ... to export results of a query to a file, with a current date and a filename that is prompted for from ... by the lack of good query tools for DB2. He developed AQT on the side until he was able sell enough ... more details
Apt http wiki.debian.org Teams Apt wiki.debian.org Teams Apt The Advanced Packaging Tool , or APT ... az Advanced Packaging Tool bn bg Apt ca Advanced Packaging Tool cs Advanced Packaging Tool de Advanced Packaging Tool el APT es Advanced Packaging Tool eo Advanced Packaging Tool eu Advanced Packaging Tool fr Advanced Packaging Tool gl APT ko Advanced Packaging Tool is Advanced Packaging Tool it Advanced Packaging Tool lv Advanced Packaging Tool hu Advanced Packaging Tool nl Advanced Packaging Tool ja APT no Advanced Packaging Tool pl APT informatyka pt Advanced Packaging Tool ru Advanced Packaging Tool simple Advanced Packaging Tool sk Advanced Packaging Tool fi Advanced Packaging Tool sv Advanced Packaging Tool tr Geli mi Paketleme Arac uk Advanced Packaging Tool vi Advanced Packaging Tool zh ...Infobox software name Advanced Packaging Tools logo screenshot Image Apt get install mediawiki.png 320px caption code apt get code requesting confirmation before an installation developer latest release version 0.8.10 ref name package cite web url http packages.qa.debian.org a apt.html title Debian Details of package apt publisher packages.qa.debian.org accessdate 2010 12 14 last first ref latest release date release date and age 2010 11 30 latest preview version None latest preview date operating ... tt etc apt tt has the apt configuration folders and files. apt config is the APT Configuration Query ... ref code apt config dump code shows the configuration. ref http www.debianadmin.com query apt configuration using apt config.html Query APT Configuration Using apt config Debian Admin Bot generated ... Several other front end s to APT exist, which provide more advanced installation functions and more ... tool sponsored for Ubuntu. There is also a Qt version, available in the Ubuntu repositories a gdebi ... that all development efforts focused on maintaining and improving the tool. It was not until much later ... more details
wiktionary query In general, a query is a form of question ing, in a line of inquiry. A query may also refer to The Queries , a set of 31 questions outlined by Isaac Newton beginning in 1704 Query Quaker , a question used for reflection and spiritual exercises among members of the Society of Friends Query complexity , a mapping from structures of one vocabulary to structures of another vocabulary In computing A precise request for information retrieval with database and information systems Query language , a computer language used to make queries into databases and information systems Query string , in the World Wide Web, is an optional part of a Uniform Resource Locator URL that follows the first question mark ? Web search query , a query entered by users into web search engines Command query separation CQS , a concept in object oriented programming, especially in the Eiffel programming language jQuery , a lightweight JavaScript library that emphasizes interaction between JavaScript and HTML Persons with the surname Query Jeff Query , an American American Football football player Nate Query , a musician See also Queue disambiguation Disambig de Query it Query nl Query ja pl Zapytanie bazy danych ru sr th ... more details
Two other uses the progressive rock band Tool band other uses File 20060513 toolbox.jpg thumb A modern toolbox. A tool is a device that can be used to produce an item or achieve a task, but that is not consumed ... definition a tool is an entity that interfaces between two or more domains that facilitates more ... tool use. Evolutionary Anthropology Issues, News, and Reviews 11 235 245. ref These early tools ... when hominina hominin s first began manufacturing stone tool s, and evidence of these tools dates ... of Human Evolution 45 169 177. ref One of the earliest distinguishable stone tool forms is the hand ... waterwheel s and wind windmill s . Machine tool s occasioned a surge in producing new tools in the industrial ... Tool use by animals Observation has confirmed that Tool use by animals multiple species can use tools ... kgroup diameter select.pdf Selection of tool diameter by New Caledonian crows Corvus moneduloides ... stress shearing force along a narrow face. Ideally, the edge of the tool needs to be Hardness harder ... Shaping tools, such as moulds , Jig tool jigs , trowels . Fastening tools, such as welder s, rivet gun ... tools. An alarm clock is for example a combination of a measuring tool the clock and a perception tool the alarm . This enables the alarm clock to be a tool that falls outside of all the categories mentioned ... as gloves, safety glasses , ear defender s and biohazard suits. Tool substitution Often, by design or coincidence, a tool may share key functional attributes with one or more other tools. In this case ... of practical efficiency. One tool does it all is a motto of some importance for workers who cannot practically carry every specialized tool to the location of every work task. Tool substitution may .... Multi use tools A Multi tool is a hand tool that incorporates several tools into a single, portable ... s square in the right angle between the blade s dull edge and the saw s handle. Tool metaphors A telephone is a communication tool that interfaces between two people engaged in conversation at one ... more details
A query plan or query execution plan is an ordered set of steps used to access or modify information ... number of alternative ways to execute a given query, with widely varying performance. When a Information retrieval query is submitted to the database, the query optimizer evaluates some of the different, correct possible plans for executing the query and returns what it considers the best alternative. Because query optimizers are imperfect, database users and administrators sometimes need to manually examine and tune the plans produced by the optimizer to get better performance. Generating query ... for a given query. Some packages feature tools which will generate a graphical representation of a query ... a textual description of the query plan. Another mechanism for retrieving the query plan involves querying a virtual database table after executing the query to be examined. In Oracle, for instance, this can ... tool which ships with Microsoft SQL Server , for example, shows this graphical plan when executing ... exploration of various attributes of the operators involved in the query plan, including the operator ... a sample query plan. Textual plans The textual plan given for the same query in the screenshot is shown ... as e . ContactID ORDERED FORWARD pre It indicates that the query engine will do a scan over .... In order to tune the query, the user must understand the different operators that the database may ... query results. Database tuning main Database tuning Reviewing the query plan can present opportunities ... is not properly taking advantage of existing indexes see query optimizer . Query tuning main Query optimizer The query optimizer will not always choose the best query plan for a given query. In some databases the query plan can be reviewed, problems found, and then the query optimizer given hints on how to improve it. In other databases alternatives to express the same query other queries that return the same results can be tried. Some query tools can generate embedded hints in the query, for use ... more details
Query by Example QBE is a database query language for relational database s. It was devised by Mosh M. Zloof at IBM Research during the mid 1970s, in parallel to the development of SQL . It is the first graphical query language, using visual tables where the user would enter commands, example elements and conditions. Many graphical front ends for databases use the ideas from QBE today. Originally limited only for the purpose of retrieving data, QBE was later extended to allow other operations, such as inserts, deletes and updates, as well as creation of temporary tables. The motivation behind QBE is that a parser can convert the user s actions into statements expressed in a database manipulation language, such as SQL . Behind the scenes it is this statement that is actually executed. A suitably comprehensive front end can minimize the burden on the user to remember the finer details of SQL, and it is easier and more productive for end users and even programmers to select tables and columns by selecting them rather than typing in their names, In the context of information retrieval , QBE ... relational database front ends, notably Microsoft Access, which implements Visual Query by Example ... the results. It provides a way for a software user to perform queries without having to know a query ... WHERE City Sampleton AND Zipcode 12345 More advanced versions of QBE have other comparison operator .... See also Microsoft Query by Example References references M. Zloof. Query by Example . AFIPS, 44 ... External links http pgfoundry.org projects qbe Query by Example for PostgreSQL http docs.jboss.org hibernate core 3.3 reference en html querycriteria.html querycriteria examples Query by Example in Java using Hibernate Category Databases Category Query languages Category User interface techniques compu lang stub ca Consulta mitjan ant exemple de Query by Example es Sistemas de consulta por ejemplo multimedia fr Query By Example pl Query By Example pt Query by Example ru QBE ... more details
prose date October 2010 unreferenced date October 2010 Query languages are computer language s used to make queries into database s and information system s. Broadly, query languages can be classified according to whether they are database query languages or information retrieval query language s. Examples include .QL is a proprietary object oriented query language for querying relational database s successor of Datalog Common Query Language CQL a formal language for representing queries to information retrieval systems such as web indexes or bibliographic catalogues. CQLF CODASYL Query Language, Flat is a query language for CODASYL type databases Concept Oriented Query Language COQL is used ... and inference D data language specification D is a query language for Relational database management system truly relational database management systems TRDBMS Data Mining Extensions DMX is a query language for Data Mining models Datalog is a query language for deductive database s ERROL is a query ... as well as for information modeling and knowledge modeling HTSQL is a query language that translates HTTP queries to SQL ISBL is a query language for PRTV , one of the earliest relational database ... over TCP IP Molecular Query Language MQL is a cheminformatics query language for a substructure ... is a query language for OLAP databases Object Query Language OQL is Object Query Language Object Constraint Language OCL Object Constraint Language . Despite its name, OCL is also an object query language ... Poliqarp Query Language is a special query language designed to analyze annotated text. Used in the Poliqarp search engine QUEL query languages QUEL is a relational database access language, similar in most ways to SQL RDQL is a Resource Description Framework RDF query language SeRQL Sesame RDF Query Language , pronounced circle is a new RDF RDFS query language that is currently being developed by Aduna ... for a substructure search SPARQL is a query language for Resource Description Framework RDF Graph ... more details
Mergefrom Query optimization date January 2009 The query optimizer is the component of a database management ... query . The optimizer considers the possible query plan s for a given input query, and attempts to determine which of those plans will be the most efficient. Cost based query optimizers assign an estimated cost to each possible query plan, and choose the plan with the smallest cost. Costs are used to estimate the runtime cost of evaluating the query, in terms of the number of I O operations required, the CPU requirements, and other factors determined from the data dictionary . The set of query plans ... large depending on the complexity of the SQL query. Generally, the query optimizer cannot be accessed ... to the query optimizer where optimization occurs. However, some database engines allow guiding the query optimizer with hint SQL hint s. Implementation Most query optimizers represent query plans as a Tree data structure tree of plan nodes . A plan node encapsulates a single operation that is required to execute the query. The nodes are arranged as a tree, in which intermediate ..., for example by performing an index scan or a sequential scan. Join ordering The performance of a query ... 3 tables A, B, C of size 10 rows, 10,000 rows, and 1,000,000 rows, respectively, a query plan that joins ... first. Most query optimizers determine Join SQL join order via a dynamic programming algorithm ... First, all ways to access each Relational model relation in the query are computed. Every relation in the query ... that can be used to answer a Predicate computer programming predicate in the query, an index scan can ... sort order. Then all three relation query plans are computed, by joining each two relation plan produced by the previous phase with the remaining relations in the query. In this manner, a query plan ... of the sort order of the result set produced by a query plan, also called an interesting order . During dynamic programming, one query plan is considered to beat another query plan that produces the same ... more details
Unreferenced date December 2009 Orphan date December 2009 A query letter is a formal letter sent to magazine editors, literary agents and sometimes publishing publishing houses or companies. Writers write query letters to propose writing ideas. For example, a standard requested format for a manuscript query letter to a literary agent could be approximately 200 400 words, expressing the following information The topic of the work A short description of the plot A short bio of the author The target audience The literary agent would then decide whether to contact the author and request to see the manuscript, based on the contents of the query letter. In this sense, the query letter is an author s first step towards getting his her manuscript published. See also Literary agent Literary Agent Publishing DEFAULTSORT Query Letter Category Book publishing Literature stub ... more details
Query expansion QE is the process of reformulating a seed query to improve retrieval performance in information ... 2006 title A study of the effect of term proximity on query expansion journal Journal of Information ... search engine s, query expansion involves evaluating a user s input what words were typed into the search query area, and sometimes other types of data and expanding the search query to match additional documents. Query expansion involves techniques such as Finding synonym s of words, and searching ... by stemming each word in the search query Fixing Typographic error spelling errors and automatically ... queryQuery expansion is a methodology studied in the field of computer science , particularly ... Search engines invoke query expansion to increase the quality of user search results. It is assumed ... information retrieval precision . By expanding a search query to search for the synonyms ... more results to comb through, regardless of the precision. The goal of query expansion in this regard ... to be more relevant to the user s desired query, are included, and without query expansion would ... of the defining problems in query expansion, regarding whether it is worthwhile to perform given the questionable ... this is implicitly handled by the query expansion algorithm, this explicitly affects the results ... query expansion with the use of Apache Lucene . http grasia.fdi.ucm.es jose query expansion LuceneQE State of Art query expansion for Lucene References D. Abberley, D. Kirby, S. Renals, and T. Robinson ... pubs 1999 esca99 thisl node6.html Query Expansion Concise, mathematical overview. R. Navigli, P. Velardi. http www.dcs.shef.ac.uk fabio ATEM03 navigli ecml03 atem.pdf An Analysis of Ontology based Query ..., 2003, pp. 42 49 An analysis of query expansion methods relying on WordNet as the reference ontology. Y. Qiu and H.P. Frei. http citeseer.ist.psu.edu qiu93concept.html Concept Based Query Expansion ... method of query expansion Efthimis N. Efthimiadis. http faculty.washington.edu efthimis pubs Pubs ... more details
Mergeto Query optimizer date January 2009 Query optimization is a function of many relational database management system s in which multiple query plan s for satisfying a query are examined and a good query plan is identified. This may or not be the absolute best strategy because there are many ways of doing plans. There is a trade off between the amount of time spent figuring out the best plan and the amount running the plan. Different qualities of database management systems have different ways of balancing these two. Cost based query optimizer s evaluate the resource footprint of various query plans and use this as the basis for plan selection. Typically the resources which are costed are CPU path length, amount of disk buffer space, disk storage service time, and interconnect usage between units of parallelism. The set of query plans examined is formed by examining possible access paths e.g., primary index access, secondary index access, full file scan and various relational table join techniques e.g., merge join, hash join, product join . The search space can become quite large depending on the complexity of the SQL query. There are two types of optimization. These consist of logical optimization which generates a sequence of relational algebra to solve the query. In addition there is physical optimization which is used to determine the means of carrying out each operation. Category Database algorithms Category Database management systems Category SQL he ru ... more details
In 1917, Archibald Query invented Marshmallow Fluff , a special formula of marshmallow creme. Query developed the recipe in his kitchen, initially selling it door to door. With the advent of World War I there were serious shortages of sugar, one of the basic ingredients. With his business faltering, Query sold the rights to his recipe to the candymakers H. Allen Durkee and Fred Mower. ref http web.mit.edu invent iow query.html , MIT Inventor of the Week, Retrieved on August 26, 2009 ref When mixed with peanut butter , it is the primary ingredient in a sandwich known as a Fluffernutter . He was a resident of Somerville, MA . External links http www.unionsquaremain.org committees Special 20Events fluff 20alt.html What the Fluff? festival in Somerville, MA , honoring Query and Marshmallow Fluff. Accessed May 22, 2007 http web.mit.edu invent iow query.html Inventor of the Week from MIT website. Accessed May 22, 2007 http www.marshmallowfluff.com Marshmallow Fluff website. Accessed February 5, 2009 See also Marshmallow Fluff Fluffernutter References Reflist DEFAULTSORT Query, Archibald Category American inventors es Archibald Query ... more details
Unreferenced date May 2008 A range query is a common database operation that retrieves all records where some value is between an upper and lower boundary. For example, list all employees with 3 to 5 years experience. Range queries are unusual because it is not generally known in advance how many entries a range query will return, or if it will return any at all. Many other queries, such as the top ten most senior employees, or the newest employee, can be done more efficiently because there is an upper bound to the number of results they will return. A query that returns exactly one result is sometimes called a Singleton mathematics singleton . Category databases Database stub de Bereichsabfrage ... more details
notability date January 2011 In database theory and database systems , a monotonic query is one whose result size does not decrease with the addition of new tuples in the database. Category Database theory database stub ... more details
In World Wide Web , a query string is the part of a Uniform Resource Locator URL that contains data to be passed ... URL location bar showing a URL with the query string code title Main page&action raw code ... its output as the required page. The query string is a part of the URL which is passed to the program ... generates the web page. Structure A typical URL containing a query string is as follows code nowiki http server path program?query string nowiki code When a server receives a request for such a page, it runs a program if configured to do so , passing the code query string code unchanged to the program. The question mark is used as a separator and is not part of the query string. ref cite web url ... year 2005 at Query section 3.4 separator , ref A link in a web page may have a URL that contains a query string. However, the main use of query strings is to contain the content of an HTML form, also ... as a query string as follows code field sub 1 sub value sub 1 sub &field sub 2 sub value sub 2 sub &field sub 3 sub value sub 3 sub ... code The query string is composed of a series of field value pairs ... field of the form, the query string contains a pair field value. Web forms may include fields that are not visible to the user these fields are included in the query string when the form is submitted ... ref Technically, the form content is only encoded as a query string when the form submission method ... is HTTP GET Request methods POST , but the result is not sent as a query string, that is, is not added ... code code is used to separate a name from a value. A query string may need to be converted to satisfy ... reserved characters URL encoding . In particular, encoding the query string uses the following rules ... specifies that the query component of a Uniform Resource Identifier URI is the part between the code ? code and the end of the URI or the character code code . The term query string is of common usage ... button, the program code test.cgi code will receive the following query string first this is a field&second ... more details
In descriptive complexity , a query is a mapping from structures of one signature logic signature to structures of another vocabulary. Neil Immerman , in his book Descriptive Complexity , use s the concept of query as the fundamental paradigm of computation p. 17 . Given signatures math sigma math and math tau math , we define the set of structure mathematical logic structure s on each language, math mbox STRUC sigma math and math mbox STRUC tau math . A query is then any mapping blockquote math I mbox STRUC sigma to mbox STRUC tau math blockquote Computational complexity theory can then be phrased in terms of the power of the mathematical logic necessary to express a given query. Order independent queries A query is order independent if the ordering of objects in the structure does not affect the results of the query. In databases, these queries correspond to generic query generic queries Immerman 1999, p. 18 . This isn t a great reference for this information, since it s in the background section. A reference that goes into more detail would be great. A query is order independent iff math I mathfrak A equiv I mathfrak B math for any isomorphic structures math mathfrak A math and math mathfrak B math . References cite book last Immerman first Neil authorlink Neil Immerman title Descriptive Complexity year 1999 publisher Springer Verlag location New York isbn 0 387 98600 6 comp sci theory stub Category Descriptive complexity ... more details
A spatial query is a special type of database query supported by geodatabase s. The queries differ from SQL queries in several important ways. Two of the most important are that they allow for the use of geometry data types such as points, lines and polygons and that these queries consider the spatial relationship between these geometries. Types of queries The function names for queries differ across geodatabases. The following list contains commonly used functions built into PostGIS , a free geodatabase which is a PostgreSQL extension the term geometry refers to a point, line, box or other two or three dimensional shape Function prototype functionName parameter s return type Distance geometry, geometry number Equals geometry, geometry boolean Disjoint geometry, geometry boolean Intersects geometry, geometry boolean Touches geometry, geometry boolean Crosses geometry, geometry boolean Overlaps geometry, geometry boolean Contains geometry, geometry boolean Length geometry number Area geometry number Centroid geometry geometry For another definition of Spatial Query consult A to Z GIS An Illustrated Dictionary of Geographic Information Systems from http gis.esri.com esripress ESRI Press See also Spatial database Nearest neighbor search DEFAULTSORT Spatial Query Category Geographic information systems Category Query languages database stub pl Zapytanie przestrzenne zh ... more details
In database theory , a conjunctive query is a restricted form of first order logic first order queries ... without distinguished variables are called boolean conjunctive query boolean conjunctive queries . Conjunctive ... query code student, address . math exists math student2, course . attends student, course math ... , i.e. undistinguished. Relationship to other query languages Conjunctive queries also correspond ..., this excludes the use of aggregation and subqueries. For example, the above query can be written as an SQL query of the conjunctive query fragment as code select l.student, l.address from attends a1 ... rules. Many authors in fact prefer the following datalog notation for the query above code result ... quantified. While any conjunctive query can be written as a datalog rule, not every datalog program can be written as a conjunctive query. In fact, only single rules over extensional predicate symbols can be easily rewritten as an equivalent conjunctive query. The problem of deciding whether ... to a positive relational algebra query, or, equivalently, a formula of positive existential first order logic , or, as a special case, a conjunctive query is known as the datalog boundedness problem and is undecidable ... problems have to be distinguished. The first is the problem of evaluating a conjunctive query on a relational database where both the query and the database are considered part of the input. The complexity ... of evaluating a query on a relational database, where the query is assumed fixed, is called data complexity ref Moshe Y. Vardi The Complexity of Relational Query Languages Extended Abstract STOC .... Addison Wesley, 1995. ref . For example, consider the query containment problem. We write math ... if each tuple occurring in math R math also occurs in math S math . Given a query math Q math and a relational database instance math I math , we write the result relation of evaluating the query ... schema , the query containment problem is the problem of deciding whether for all possible ... more details
Query by humming QbH is a music retrieval system that branches off the original classification systems of title, artist, composer, and genre. It normally applies to songs or other music with a distinct single theme or melody. The system involves taking a user hummed melody input Information retrieval query and comparing it to an existing database . The system then returns a ranked list of music closest to the input query. One example of this would be a system involving a portable media player with a built in microphone that allows for faster searching through Digital media media files. The MPEG 7 standard includes provisions for QbH music searches. Examples of QbH systems Musipedia is an example of a QbH system that uses a variety of input methods, such as humming, tapping the keyboard, keyboard search a virtual piano keyboard , draw notes, and a contour search, using Parsons code Parsons Code to encode the music pieces. Midomi is a social music search by humming website. Being social, the source of a recording can be traced from the song. Midomi has collected about one million contributions to its index based on user contribution in multiple languages. The top four languages are English, Japanese, Chinese and Spanish. Midomi also has a mobile app called SoundHound available on the iPhone ... query by humming.0.html QbH system from Musipedia http querybyhum.cs.nyu.edu QbH research project at NYU http www.sloud.com technology query by humming Query by Humming at Sloud Inc , http www.sloud.com ... systems apparently last updated ca 2003 http www.cs.cornell.edu Info Faculty bsmith query by humming.html Query By Humming Musical Information Retrieval in an Audio Database , paper by Asif Ghias ... Name that Tune A Pilot Study in Finding a Melody from a Sung Query , article by Bryan Pardo, Jonah ..., vol. 55 4 , pp. 283 300, 2004 tech stub Category Music search engines ca Query by humming de Query by Humming es Query by Humming fa ... more details
File The Decemberists at Yale, 28 April 2009 60.JPG thumb Query performing with The Decemberists Nate Query plays electric bass, upright bass, and cello in the rock band The Decemberists band The Decemberists . He is also credited on Michael Zapruder s record. Former bands include Calobo and Everyday Dirt . His most recent project is the acoustic band Black Prairie with a number of other Portland artists. External links http www.earshot online.com features 2006 December inbox 1.cfm Earshot feature http www.pitchforkmedia.com article track review 38221 haymaker market Pitchfork review of Michael Zapruder References Allmusic class artist id p433197 credits pure url yes Album credit listing on Allmusic Decemberists Persondata Metadata see Wikipedia Persondata . NAME Query, Nate ALTERNATIVE NAMES SHORT DESCRIPTION DATE OF BIRTH PLACE OF BIRTH DATE OF DEATH PLACE OF DEATH DEFAULTSORT Query, Nate Category Living people Category American rock bass guitarists Category Year of birth missing living people Category The Decemberists US bass guitarist stub ... more details
NFL player Image only free content images are allowed for depicting living people see WP NONFREE DateOfBirth birth date and age 1967 3 7 Birthplace Decatur, Illinois Position Wide receiver High School Maroa Forsyth College Millikin University Millikin number 85, 89, 16 DraftedYear 1989 DraftedRound 5 DraftedPick 124 PFR QuerJe00 DatabaseFootball QUERYJEF01 NFL QUE553722 years 1989 1991 BR 1992 1995 BR 1995 teams Green Bay Packers br Cincinnati Bengals BR Washington Redskins Jeff Lee Query born March 7, 1967 in Decatur, Illinois is a former American football wide receiver in the National Football League for the Green Bay Packers , Cincinnati Bengals , and the Washington Redskins . Query played college football at Millikin University and was NFL Draft drafted in the fifth round of the 1989 NFL Draft . Persondata Metadata see Wikipedia Persondata . NAME Query, Jeff ALTERNATIVE NAMES SHORT DESCRIPTION DATE OF BIRTH March 7, 1967 PLACE OF BIRTH DATE OF DEATH PLACE OF DEATH DEFAULTSORT Query, Jeff Category Living people Category 1967 births Category People from Decatur, Illinois Category American football wide receivers Category Green Bay Packers players Category Cincinnati Bengals players Category Washington Redskins players widereceiver 1960s stub ... more details
Merge List of Batman Family enemies date March 2010 Superherobox image Image Query and echo.jpg 250px caption comic color background 8080ff character name Query and Echo real name Diedre Vance and Nina Damfino publisher DC Comics debut Detective Comics Annual 8 1995 creators Chuck Dixon br Kieron Dwyer alliance color alliances partners Riddler aliases powers Combat Skills br Guns and Weapons Handling Query and Echo are fictional characters featured in DC Comics , most commonly known as The Riddler The Riddler s two henchwomen. ref name dc ency Citation last Greenberger first Robert author link contribution Echo editor last Dougall editor first Alastair title The DC Comics Encyclopedia page 112 publisher Dorling Kindersley place New York year 2008 ISBN 0 7566 4119 5 oclc 213309017 ref Query and Echo are well trained with firearms and boast impressive combat skills. The costumes they wear are catsuit like clothings with black net stockings and a big question mark logo over the chest. Their suits are either green, like that of the Riddler, or purple to contrast with it. Fictional character history and origin Diedre Vance the blonde and Nina Damfino the brunette started off as two wikt biker biker women, dressed in sexy costumes and robbing convenience stores. One night, they stumbled ... and named them Query and Echo. ref name dca8 Detective Comics Annual 8 1995 ref Their first ... dca8 The Riddler s next crime was to kidnap valuable violins from a mogul who collected them. Query ... and arrested him as well. ref name dca8 DC Universe comics history Very little is known about Query ... s ingenious plans. Query and Echo also made their appearance in the DC Comics Origins Trading Card Game created by Upper Deck Entertainment . Their card number is DOR 076. In other media Television Query and Echo appear in DC Universe Online , Query voiced by Ellie McBride and Echo voiced by Jodi Jinks ... Fictional duos Category Fictional criminals tl Query at Echo ... more details
Query flooding is a method to search for a resource on a P2P network . It is simple but scalability scale s very poorly and thus is rarely used. Early versions of the Gnutella protocol operated by query flooding newer versions use more efficient search algorithms. Operation A P2P network generally consists of a large number of nodes each connected not to all other nodes, but a small subset of the nodes. If a node wants to find a resource on the network, which may be on a node it does not know about, it could simply broadcasting computing broadcast its search query to its immediate neighbours. If the neighbours do not have the resource, it then asks its neighbours to forward the query to their neighbours in turn. This is repeated until the resource is found or all the nodes have been contacted, or perhaps a network imposed hop telecommunications hop limit is reached. Query flooding is simple to implement and is practical for small networks with few requests. It contacts all reachable nodes in the network and so can precisely determine whether a resource can be found in the network Freenet , for example, only returns a probabilistic result . On the other hand, every request may cause every node to be contacted. Each node might generate a small number of queries however, each such query floods the network. Thus, a larger network would generate far more traffic per node than a smaller one, making it inherently unscalable. Additionally, because a node can flood the network simply by issuing a request for a nonexistent resource, it could be possible to launch a denial of service attack on the network. Alternatives http rfc gnutella.sourceforge.net src rfc 0 6 draft.html Version 0.6 of the Gnutella protocol mandates query routing . The query routing http groups.yahoo.com group the gdf files Proposals Working 20Proposals search Dynamic 20Querying specification explains how the ideas of http aeolusres.homestead.com files index.html the original research are implemented. Other ... more details
unsourced date December 2007 In Computer Science , Query Throughput QthD is a measurement used to determine the performance of a database system . The throughput metric is a classical throughput measure characterizing the ability of the system to support a multi user workload in a balanced way. Background A number of query language query users S is chosen, each of which execute the full set of 17 queries in a different order Fact date February 2007 . In the background there is an update stream that runs a series of insert delete operations one pair for each query user . The choice of the number of users is at the discretion of the test sponsor. The throughput metric is computed as the total amount of work S× 17 , converted to hours from seconds 3600 seconds per hour , scaled by the database volume SF and divided by the total elapsed time T sub s sub required between the first query starting and the last query or update function completing. Therefore the complete formulation is math mathit QthD frac S times 17 times 3600 T s times mathit SF math Note that if the test sponsor chooses S 1 for the throughput test, for ease of benchmarking it is permissible to omit the throughput test and compute the throughput metric using timings obtained during the power test. Similarly, it is permissible to schedule the insert delete activity for the throughput test after all the queries complete. Fact date February 2007 See also See Transaction Processing Performance Council TPC . database stub Category Computer performance ... more details
Encyclopedia
top
