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SQL Tutorial - 55: Le ALTER TABLE commande

Published 11 years ago

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External ressources related to SQL Tutorial - 55: The ALTER TABLE Command

The Essential Guide to SQL ALTER TABLE Statement

https://www.sqltutorial.org/sql-alter-table/

Summary: this tutorial shows you how to use the SQL ALTER TABLE to change the structure of existing tables in the database. Once you create a new table, you may want to change its structure because business requirements change. To modify the structure of

SQL - ALTER TABLE Command - Tutorialspoint

https://www.tutorialspoint.com/sql/sql-alter-command.htm

The SQL ALTER TABLE command is used to add, delete or modify columns in an existing table. You should also use the ALTER TABLE command to add and drop various constraints on an existing table. The basic syntax of an ALTER TABLE command to change the DATA

SQL ALTER TABLE Statement - W3Schools

https://www.w3schools.com/SQl/sql_alter.asp

SQL ALTER TABLE Statement. The ALTER TABLE statement is used to add, delete, or modify columns in an existing table. The ALTER TABLE statement is also used to add and drop various constraints on an existing table.