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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, and users. DDL statements are similar to a computer programming language for defining data structures, especially database schemas. Common examples of DDL statements include CREATE, ALTER ...
Reserved words in SQL and related products In SQL:2023 [3] In IBM Db2 13 [4] In Mimer SQL 11.0 [5] In MySQL 8.0 [6] In Oracle Database 23c [7] In PostgreSQL 16 [1] In Microsoft SQL Server 2022 [2]
GRANT to allow specified users to perform specified tasks. REVOKE to remove the user accessibility to database object . The operations for which privileges may be granted to or revoked from a user or role apply to both the Data definition language (DDL) and the Data manipulation language (DML), and may include CONNECT , SELECT , INSERT , UPDATE ...
PostgreSQL (/ ˌ p oʊ s t ɡ r ɛ s k j u ˈ ɛ l / POHST-gres-kew-EL) [11] [12] also known as Postgres, is a free and open-source relational database management system (RDBMS) emphasizing extensibility and SQL compliance.
SQL allows triggers to fire on updates to specific columns; As of version 9.0 of PostgreSQL this feature is also implemented in PostgreSQL. The standard allows the execution of a number of SQL statements other than SELECT , INSERT , UPDATE , such as CREATE TABLE as the triggered action.
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Making sure there's a balance between energy intake and energy output is "really important to ovulatory cycles" and the key to maintaining reproductive function, she adds.
As it is specified for Simple Authentication and Security Layer (SASL), it can be used for password-based logins to services like LDAP, HTTP, SMTP, POP3, IMAP and JMAP , XMPP (chat), or MongoDB and PostgreSQL (databases). For XMPP, supporting it is mandatory.