Which command creates and alter tables?

Which command is used to alter table?

ALTER TABLE is used to add, delete/drop or modify columns in the existing table. It is also used to add and drop various constraints on the existing table. ADD is used to add columns into the existing table.

How do you create an ALTER TABLE?

Syntax. The basic syntax of an ALTER TABLE command to add a New Column in an existing table is as follows. ALTER TABLE table_name ADD column_name datatype; The basic syntax of an ALTER TABLE command to DROP COLUMN in an existing table is as follows.

Which command modify a tables definition?

The MySQL ALTER command is very useful when you want to change a name of your table, any table field or if you want to add or delete an existing column in a table.

What is Create command in SQL?

SQL: create command. create is a DDL SQL command used to create a table or a database in relational database management system.