Structured Query Language (SQL) (pronounced /ˌɛsˌkjuˈɛl/ S-Q-L; or alternatively as /ˈsiːkwəl/ "sequel") is a domain-specific language used to manage...
45 KB (4,047 words) - 08:39, 14 June 2025
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
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) - 02:36, 9 June 2025
NoSQL (originally meaning "Not only SQL" or "non-relational") refers to a type of database design that stores and retrieves data differently from the...
30 KB (2,437 words) - 06:52, 9 May 2025
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
The history of Microsoft SQL Server begins with the first Microsoft SQL Server database product – SQL Server v1.0, a 16-bit relational database for the...
46 KB (4,314 words) - 05:56, 1 June 2025
PostgreSQL (/ˌpoʊstɡrɛskjuˈɛl/ POHST-gres-kew-EL) also known as Postgres, is a free and open-source relational database management system (RDBMS) emphasizing...
103 KB (8,668 words) - 19:59, 15 June 2025
Data definition language (redirect from Drop (SQL))
In the context of SQL, data definition or data description language (DDL) is a syntax for creating and modifying database objects such as tables, indices...
9 KB (1,002 words) - 19:09, 27 November 2024
Transact-SQL (T-SQL) is Microsoft's and Sybase's proprietary extension to the SQL (Structured Query Language) used to interact with relational databases...
6 KB (704 words) - 10:07, 8 June 2023
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
SQL/JRT, or SQL Routines and Types for the Java Programming Language, is an extension to the SQL standard first published as ISO/IEC 9075-13:2002 (part...
3 KB (339 words) - 18:28, 11 May 2020
The SQL/MED ("Management of External Data") extension to the SQL standard is defined by ISO/IEC 9075-9:2008 (originally defined for SQL:2003). SQL/MED...
2 KB (209 words) - 17:07, 10 April 2024
Module SQL is a method of combining the computing power of a programming language and the database manipulation capabilities of SQL. Module SQL statements...
5 KB (515 words) - 02:03, 20 April 2025
components within Microsoft SQL Server. First launched with Microsoft SQL Server 2005, it is the successor to the Enterprise Manager in SQL 2000 or before. The...
4 KB (315 words) - 19:46, 11 June 2025
SQL Server Reporting Services (SSRS) is a server-based report generating software system from Microsoft. It is part of a suite of Microsoft SQL Server...
8 KB (1,054 words) - 19:17, 3 April 2025
SQL Server may refer to: Microsoft SQL Server, a relational database server from Microsoft Sybase SQL Server, a relational database server developed by...
273 bytes (69 words) - 22:48, 25 May 2025
Database (section 2000s, NoSQL and NewSQL)
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) - 23:59, 9 June 2025
Microsoft Azure SQL Database (formerly known as SQL Azure, SQL Server Data Services, SQL Services, and Windows Azure SQL Database) is a managed cloud database...
9 KB (787 words) - 09:29, 24 March 2025
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
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 (3,904 words) - 12:19, 7 August 2024
SQL:2023 or ISO/IEC 9075:2023 (under the general title "Information technology – Database languages – SQL") is the ninth edition of the ISO (1987) and...
4 KB (391 words) - 10:47, 4 February 2025
SQL Slammer is a 2003 computer worm that caused a denial of service on some Internet hosts and dramatically slowed general Internet traffic. It also crashed...
11 KB (953 words) - 17:45, 19 October 2024
Look up SQL in Wiktionary, the free dictionary. SQL (short for Structured Query Language) is a domain-specific language used in programming and designed...
613 bytes (126 words) - 13:03, 7 June 2024
SQL:1999 (also called SQL 3) was the fourth revision of the SQL database query language. It introduced many new features, many of which required clarifications...
8 KB (722 words) - 14:19, 13 May 2025
SAP SQL Anywhere is a proprietary relational database management system (RDBMS) product from SAP. SQL Anywhere was known as Sybase SQL Anywhere prior to...
8 KB (671 words) - 05:25, 1 June 2025
An SQL UPDATE statement changes the data of one or more records in a table. Either all the rows can be updated, or a subset may be chosen using a condition...
5 KB (596 words) - 20:59, 25 January 2025
implemented the SQL database-query language. SQL/DS ran on the DOS/VSE and VM/CMS operating systems. A little later, IBM also introduced Db2, another SQL-based...
3 KB (222 words) - 01:50, 28 May 2025
Embedded SQL is a method of combining the computing power of a programming language and the database manipulation capabilities of SQL. Embedded SQL statements...
9 KB (915 words) - 15:28, 19 November 2024
Therefore, an ORDER BY clause in the view definition is meaningless; the SQL standard (SQL:2003) does not allow an ORDER BY clause in the subquery of a CREATE...
7 KB (936 words) - 08:21, 29 September 2024