SQL Facts
Tuesday, December 27th, 2011SQL Facts SQL stands for Structured Query Language SQL is pronounced “sequel” SQL is declarative language SQL is used to access & manipulate …
SQL Facts SQL stands for S tructured Q uery L anguage SQL is pronounced “sequel” SQL is declarative language SQL is used to access & manipulate data in databases Top SQL DBs are MS SQL Server, Oracle, DB2, and MySQL SQL Commands Categories Data Query Language (DQL) SELECT – Retrieve data from table(s) Data Manipulation Language (DML) INSERT – Insert data into db table UPDATE – Update data in db table DELETE – Delete data from table Data Definition Language (DDL) CREATE – Create db object (table, ALTER – DROP – Data Control Language (DCL) GRANT – Assign privilege REVOKE – remove privilege Database Definitions RDBMS (Relational Database Management System) – Software that stores and manipulates data arranged i…
SQL Facts
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