• Thumbnail for Data definition language
    statements include CREATE, ALTER, and DROP. If you see a .ddl file, that means the file contains a statement to create a table. Oracle SQL Developer contains...
    9 KB (1,002 words) - 19:09, 27 November 2024
  • 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
  • Look up alter in Wiktionary, the free dictionary. Alter may refer to: ALTER, a historic COBOL command ALTER (SQL), an SQL command Alter (album), 2002...
    997 bytes (134 words) - 00:09, 28 June 2025
  • Thumbnail for Microsoft SQL Server
    Microsoft SQL Server is a proprietary relational database management system developed by Microsoft using Structured Query Language (SQL, often pronounced...
    61 KB (7,167 words) - 05:20, 24 May 2025
  • Thumbnail for PostgreSQL
    database management system (RDBMS) emphasizing extensibility and SQL compliance. PostgreSQL features transactions with atomicity, consistency, isolation,...
    103 KB (8,668 words) - 19:59, 15 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
  • Thumbnail for SQLite
    SQLite (redirect from SQL Lite)
    this functionality). Its support of ALTER TABLE statements is limited. SQLite uses an unusual type system for an SQL-compatible DBMS: instead of assigning...
    37 KB (3,399 words) - 22:11, 23 June 2025
  • JDBC driver that hides the intricacies of the NoSQL store enabling users to create, delete, and alter SQL tables, views, indexes, and sequences; insert...
    5 KB (306 words) - 16:50, 29 May 2025
  • SAP ASE (Adaptive Server Enterprise), originally known as Sybase SQL Server, and also commonly known as Sybase DB or Sybase ASE, is a relational model...
    13 KB (1,547 words) - 02:56, 26 May 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
  • 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...
    4 KB (435 words) - 10:23, 4 June 2025
  • Database trigger (redirect from SQL trigger)
    in SQL:2003 was previously not implemented in PostgreSQL: SQL allows triggers to fire on updates to specific columns; As of version 9.0 of PostgreSQL this...
    19 KB (2,443 words) - 08:33, 30 January 2025
  • Thumbnail for Database
    majority use SQL for writing and querying data. In the 2000s, non-relational databases became popular, collectively referred to as NoSQL, because they...
    78 KB (9,882 words) - 16:36, 29 June 2025
  • SQL/Schemata defines a number of features, some of which are mandatory. Data Definition Language (CREATE, ALTER, DROP...) SQL:2003 (Introduced SQL/Schemata)...
    1 KB (139 words) - 15:43, 25 June 2019
  • Data control language (category SQL)
    Transact-SQL (T-SQL), which is an extension of SQL. Similarly, Oracle uses PL-SQL, which an Oracle-specific SQL extension. However, the standard SQL commands...
    8 KB (1,011 words) - 16:25, 27 January 2025
  • Thumbnail for HeidiSQL
    HeidiSQL is a free and open-source administration tool for MariaDB, MySQL, as well as Microsoft SQL Server, PostgreSQL and SQLite. Its codebase was originally...
    8 KB (805 words) - 04:01, 19 May 2025
  • relational database management systems SQL programming tool Only for Data Import/Export features. Only for SQL Server and MySQL/MariaDB. Only incremental, by manually...
    28 KB (570 words) - 20:12, 25 June 2025
  • MySQL Cluster , also known as MySQL Ndb Cluster is a technology providing shared-nothing clustering and auto-sharding for the MySQL database management...
    20 KB (2,442 words) - 06:35, 24 June 2025
  • Microsoft SQL Server Analysis Services (SSAS) is an online analytical processing (OLAP) and data mining tool in Microsoft SQL Server. SSAS is used as...
    12 KB (1,067 words) - 05:21, 21 February 2025
  • User-defined function (category SQL)
    compiling a SQL statement. SQL-data access - tells the database management system whether the function contains no SQL statements (NO SQL), contains SQL statements...
    9 KB (1,257 words) - 11:12, 23 June 2025
  • Database object (category SQL)
    created with data definition language (DDL) commands, which in SQL for example can be CREATE, ALTER and DROP. Rows or tuples from the database can represent...
    4 KB (351 words) - 20:34, 5 December 2024
  • In the database structured query language (SQL), the DELETE statement is used to remove one or more records from a table. A subset may be defined for...
    5 KB (593 words) - 06:57, 16 December 2023
  • ISO SQL Standard, through the PRIMARY KEY constraint. The syntax to add such a constraint to an existing table is defined in SQL:2003 like this: ALTER TABLE...
    7 KB (887 words) - 13:39, 29 March 2025
  • columns are defined of SQL:2003 as Generated Column, and are only implemented by some DBMSs, like MariaDB, SQL Server, Oracle, PostgreSQL, SQLite and Firebird...
    6 KB (638 words) - 01:55, 26 August 2024
  • constraint to reference any key of a table. The definition of keys in SQL: ALTER TABLE <table identifier> ADD [ CONSTRAINT <constraint identifier> ] {...
    10 KB (1,172 words) - 20:43, 5 December 2024
  • package, Pervasive.SQL. This has enabled them to support both their Btrieve navigational database engine and an SQL-based engine, Scalable SQL. Current versions...
    41 KB (5,590 words) - 00:57, 16 March 2024
  • Thumbnail for Cosmos DB
    Cosmos DB (category NoSQL)
    traditional relational databases, Cosmos DB is a NoSQL (meaning "Not only SQL", rather than "zero SQL") and vector database, which means it can handle unstructured...
    18 KB (2,164 words) - 21:42, 20 April 2025
  • PostgreSQL 9.4.10 Documentation. PostgreSQL Global Development Group. 13 February 2020. "uuid-ossp". PostgreSQL: Documentation: 9.6. PostgreSQL Global...
    38 KB (4,601 words) - 06:37, 28 June 2025
  • Ignition SCADA (redirect from FactorySQL)
    systems released by Inductive Automation in January 2010. It is based on a SQL Database-centric architecture. Ignition features cross-platform, web-based...
    33 KB (3,197 words) - 08:26, 9 February 2025
  • ACL algorithms have been ported to SQL and to relational database systems. Many "modern" (2000s and 2010s) SQL-based systems, like enterprise resource...
    15 KB (1,577 words) - 12:04, 28 May 2025