
SQL - Wikipedia
SQL ... Structured Query Language (SQL) (pronounced / ˌɛsˌkjuˈɛl / S-Q-L; or alternatively as / ˈsiːkwəl / ⓘ "sequel") [4][5] is a domain-specific language used to manage data, especially in …
Microsoft SQL Server - Wikipedia
The history of Microsoft SQL Server begins with the first Microsoft SQL Server product—SQL Server 1.0, a 16-bit server for the OS/2 operating system in 1989—and extends to the current …
PL/SQL - Wikipedia
The main feature of SQL (non-procedural) is also its drawback: control statements (decision-making or iterative control) cannot be used if only SQL is to be used. PL/SQL provides the …
SQL syntax - Wikipedia
SQL syntax 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. Despite the existence of …
MySQL - Wikipedia
In addition to relational databases and SQL, an RDBMS like MySQL works with an operating system to implement a relational database in a computer's storage system, manages users, …
Having (SQL) - Wikipedia
Having (SQL) A HAVING clause in SQL specifies that an SQL SELECT statement must only return rows where aggregate values meet the specified conditions. [1]: 125–127
Hierarchical and recursive queries in SQL - Wikipedia
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 compute transitive closures.
Insert (SQL) - Wikipedia
Insert (SQL) An SQL INSERT statement adds one or more records to any single table in a relational database.
View (SQL) - Wikipedia
View (SQL) In a database, a view is the result set of a stored query that presents a limited perspective of the database to a user. [1] This pre-established query command is kept in the …
Select (SQL) - Wikipedia
As SQL is a declarative programming language, SELECT queries specify a result set, but do not specify how to calculate it. The database translates the query into a "query plan" which may …