• SQL is a type of operations which allow the results of multiple queries to be combined into a single result set. Set operators in SQL include UNION,...
    8 KB (863 words) - 17:19, 20 July 2023
  • Thumbnail for SQL injection
    In computing, SQL injection is a code injection technique used to attack data-driven applications, in which malicious SQL statements are inserted into...
    47 KB (4,983 words) - 11:00, 27 June 2025
  • SQL-92 (also called SQL 2) was the third revision of the SQL database query language. Unlike SQL-89, it was a major revision of the standard. Aside from...
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  • The SQL SELECT statement returns a result set of rows, from one or more tables. A SELECT statement retrieves zero or more rows from one or more database...
    33 KB (3,100 words) - 20:59, 25 January 2025
  • fundamental operation on sets Union (SQL), a set operation Union type, in computer science, a type of data structure 1. FC Union Berlin, a German association...
    6 KB (733 words) - 18:39, 10 January 2025
  • Thumbnail for MySQL
    MySQL (/ˌmaɪˌɛsˌkjuːˈɛl/) is an open-source relational database management system (RDBMS). Its name is a combination of "My", the name of co-founder Michael...
    69 KB (6,514 words) - 09:07, 22 May 2025
  • An SQL INSERT statement adds one or more records to any single table in a relational database. Insert statements have the following form: INSERT INTO...
    11 KB (1,434 words) - 20:40, 24 June 2025
  • Thumbnail for Null (SQL)
    In SQL, null or NULL is a special marker used to indicate that a data value does not exist in the database. Introduced by the creator of the relational...
    61 KB (7,610 words) - 11:03, 4 May 2025
  • Thumbnail for Join (SQL)
    A join clause in the Structured Query Language (SQL) combines columns from one or more tables into a new table. The operation corresponds to a join operation...
    42 KB (4,784 words) - 18:33, 9 June 2025
  • reserved. SQL SQL syntax List of relational database management systems Page listing all reserved words in the SQL standard, from SQL-92 to SQL:2016: Standard...
    113 KB (179 words) - 16:43, 16 April 2025
  • The syntax of the SQL programming language is defined and maintained by ISO/IEC SC 32 as part of ISO/IEC 9075. This standard is not freely available....
    35 KB (3,960 words) - 20:43, 24 May 2025
  • A hierarchical query is a type of SQL query that handles hierarchical model data. They are special cases of more general recursive fixpoint queries, which...
    14 KB (1,375 words) - 17:14, 30 May 2025
  • Order by (redirect from Order by (SQL))
    An ORDER BY clause in SQL specifies that a SQL SELECT statement returns a result set with the rows being sorted by the values of one or more columns. The...
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  • SQL UNION operator. The intersection operator (∩) produces the set of tuples that two relations share in common. Intersection is implemented in SQL in...
    32 KB (3,869 words) - 12:53, 31 May 2025
  • StreamSQL is a query language that extends SQL with the ability to process real-time data streams. SQL is primarily intended for manipulating relations...
    3 KB (434 words) - 02:56, 22 December 2024
  • concept exploit code for the SQL Server bug utilised by SQL Slammer, written by David Litchfield, was found in the Honker Union website, it was speculated...
    9 KB (961 words) - 13:35, 6 April 2025
  • extends the language by the addition of query expressions, which are akin to SQL statements, and can be used to conveniently extract and process data from...
    28 KB (3,366 words) - 06:11, 3 February 2025
  • databases, particularly query languages for such databases, chief among which is SQL. Relational databases store tabular data represented as relations. Queries...
    33 KB (4,548 words) - 21:46, 19 June 2025
  • Unicode is new in version 10.0. Note (5): MySQL provides GUI interface through MySQL Workbench. Note (6): OpenEdge SQL database engine uses Referential Integrity...
    144 KB (3,650 words) - 13:43, 9 June 2025
  • Thumbnail for San Carlos Airport (California)
    San Carlos Airport (IATA: SQL, ICAO: KSQL, FAA LID: SQL) is a public airfield located two miles (3.2 km; 1.7 nmi) northeast of San Carlos, California...
    12 KB (1,340 words) - 03:19, 31 May 2025
  • standards. GQL is intended to be a declarative database query language, like SQL. The 2019 GQL project proposal states: "Using graph as a fundamental representation...
    37 KB (4,272 words) - 03:38, 26 May 2025
  • PostGIS (category PostgreSQL)
    for geographic objects to the PostgreSQL object-relational database. PostGIS follows the Simple Features for SQL specification from the Open Geospatial...
    10 KB (738 words) - 14:01, 3 June 2025
  • Attacks and Responding to Emergencies (PREPARE) Act of 2017 (U.S.) Prepare (SQL), SQL workflow Search for "prepare" on Wikipedia. All pages with titles containing...
    592 bytes (109 words) - 15:33, 7 June 2025
  • union of lines between two varieties In computing: Join (relational algebra), a binary operation on tuples corresponding to the relation join of SQL Join...
    2 KB (225 words) - 15:43, 31 May 2025
  • database-independent ABAP statements ("Open SQL") into statements understood by the underlying DBMS ("Native SQL"). The database interface handles all the...
    66 KB (4,460 words) - 08:58, 8 April 2025
  • single-row constraint enforced via ADO (Table-less UNION query in MS Access) Microsoft SQL Server: SQL Server does not require a dummy table. Queries like...
    6 KB (722 words) - 00:27, 26 June 2023
  • Database Throughput Unit, see Microsoft Azure SQL Database Delhi Technological University Dominica Trade Union Data Transport Utility (I/Gear) German Dance...
    668 bytes (100 words) - 21:53, 17 October 2024
  • Thumbnail for Oracle Corporation
    web-oriented development Oracle SQL Developer, an integrated development environment for working with SQL-based databases Oracle SQL*Plus Worksheet, a component...
    140 KB (13,938 words) - 18:39, 28 June 2025
  • Thumbnail for Spanner (database)
    Spanner (database) (category NewSQL)
    Spanner is a distributed SQL database management and storage service developed by Google. It provides features such as global transactions, strongly consistent...
    7 KB (619 words) - 00:58, 21 October 2024
  • in a SQL database schema corresponds to a predicate variable; the contents of a table to a relation; key constraints, other constraints, and SQL queries...
    30 KB (4,196 words) - 15:00, 15 March 2025