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Learn how to use the ALTER TABLE statement to add, delete, or modify columns in an existing table. See examples of adding, dropping, and modifying columns in MySQL.
Renaming a table requires ALTER and DROP on the old table, ALTER, CREATE, and INSERT on the new table. Following the table name, specify the alterations to be made. If none are given, ALTER TABLE does nothing.
You will learn how to use the MySQL ALTER TABLE statement to add a column, alter a column, rename a column, drop a column and rename a table.
Learn how to use the ALTER TABLE statement to add, drop, modify or rename columns and tables in MySQL. See syntax, examples and output for each command.
For MyISAM tables, you can set the first sequence number by executing SET INSERT_ID=value before ALTER TABLE or by using the AUTO_INCREMENT=value table option. With MyISAM tables, if you do not change the AUTO_INCREMENT column, the sequence number is not affected.
The MySQL ALTER TABLE statement is used to add, modify, or drop/delete columns in a table. The MySQL ALTER TABLE statement is also used to rename a table.
20 Απρ 2024 · Learn how to use the ALTER TABLE command to change the structure of an existing table in MySQL. See the syntax, arguments, and examples of adding, dropping, modifying, renaming, and partitioning columns and indexes.
