How Many SQL DDL Commands Are Supported By "mysql"

How Many SQL DDL Commands Are Supported By "mysql"


  • 7 Mar, 2012

    There are 4 SQL Data Definition Language (DDL) commands that are supported by "mysql". They are listed below with short descriptions:► "CREATE dataObjectType dataObjectName" - Creates new databases, tables, views, triggers, indexes, and other data objects.► "RENAME dataObjectType dataObjectName" - Renames existing databases, tables, views, triggers, indexes, and other data objects.► "ALTER dataObjectType dataObjectName" - Alters properties of existing databases, tables, views, triggers, indexes, and other data objects.► "DROP dataObjectType dataObjectName" - Drops existing databases, tables, views, triggers, indexes, and other data objects.Here is a tutorial exercise of how to use DDL commands to create a database and a table:>cd mysql in>mysql -u rootmysql> CREATE DATABASE ggl;Query OK, 1 row affected (0.50 sec)mysql> CREATE TABLE articles (name VARCHAR(80));Query OK, 0 rows affected (0.25 sec)mysql> DROP DATABASE ggl;Query OK, 0 rows affected (0.41 sec)

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