• 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 (3,102 words) - 19:30, 20 March 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...
    40 KB (4,166 words) - 11:38, 29 April 2024
  • ON o1.id = o2.id WHERE o2.id IS NULL Union (set theory) Join (SQL) SQL:2003 Select (SQL) "The UNION [ALL], INTERSECT, MINUS Operators". Oracle. Retrieved...
    8 KB (863 words) - 17:19, 20 July 2023
  • 2008 SQL Server 2008 R2 SQL Server 2012 SQL Server 2014 SQL Server 2016 SQL Server 2017 SQL Server 2019 SQL Server 2022 From SQL Server 2016 onward, the...
    61 KB (7,126 words) - 06:10, 27 April 2024
  • manipulation language Data query language Select (SQL) Insert (SQL) Update (SQL) Delete (SQL) Truncate (SQL) Olle, T. William (1978). The Codasyl Approach...
    9 KB (961 words) - 23:22, 26 January 2023
  • reserved. SQL SQL syntax List of relational database management systems "Appendix C. SQL Key Words". PostgreSQL documentation. The PostgreSQL Global Development...
    113 KB (159 words) - 11:04, 3 January 2024
  • 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...
    62 KB (7,601 words) - 13:07, 8 January 2024
  • through a Select statement, the source of values in an Update statement, and the target rows to be deleted in a Delete statement. FROM is an SQL reserved...
    3 KB (254 words) - 20:59, 6 February 2023
  • PL/SQL (Procedural Language for SQL) is Oracle Corporation's procedural extension for SQL and the Oracle relational database. PL/SQL is available in Oracle...
    31 KB (3,910 words) - 06:32, 5 March 2024
  • A GROUP BY statement in SQL specifies that a SQL SELECT statement partitions result rows into groups, based on their values in one or several columns...
    3 KB (303 words) - 17:53, 7 November 2023