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5) RENAME column in table Syntax: ALTER TABLE table_name CHANGE COLUMN old_name new_name  column_definition [ FIRST | AFTER column_name ] Example: In this example, we will change the column name "cus_surname" to "cus_title". Use the following query to do this:  ALTER TABLE  cus_tbl CHANGE COLUMN cus_surname cus_title varchar(20) NOT NULL; 6) RENAME table Syntax: ALTER TABLE table_name RENAME TO new_table_name; Example: In this example, the table name cus_tbl is renamed as cus_table. ALTER TABLE cus_tbl RENAME TO cus_table; Subscribe channel on  YouTube Read this post on  Blogger Like page on  Facebook Tweet about video on  twitter Let's chat on  whatsapp See you at  Instagram Google +

3) MODIFY column in the table The MODIFY command is used to change the column definition of the table. Syntax: ALTER TABLE table_name  MODIFY column_name column_definition  [ FIRST | AFTER column_name ];  Example: In this example, we modify the column cus_surname to be a data type of varchar(50) and force the column to allow NULL values. Use the following query to do this: ALTER TABLE cus_tbl  MODIFY cus_surname varchar(50) NULL;  4) DROP column in table Syntax: ALTER TABLE table_name  DROP COLUMN column_name;  Let's take an example to drop the column name "cus_address" from the table "cus_tbl". Use the following query to do this: ALTER TABLE cus_tbl  DROP COLUMN cus_address; Continue... Subscribe channel on  YouTube Read this post on  Blogger Like page on  Facebook Tweet about video on  twitter Let's chat on  whatsapp See you at  Instagram Google +

MySQL ALTER Table MySQL ALTER statement is used when you want to change the name of your table or any table field. It is also used to add or delete an existing column in a table. The ALTER statement is always used with " ADD ", " DROP " and " MODIFY " commands according to the situation. 1) ADD a column in the table Syntax: ALTER TABLE table_name   ADD new_column_name column_definition   [ FIRST | AFTER column_name ];   Parameters table_name: It specifies the name of the table that you want to modify. new_column_name: It specifies the name of the new column that you want to add to the table. column_definition: It specifies the data type and definition of the column (NULL or NOT NULL, etc). FIRST | AFTER column_name: It is optional. It tells MySQL where in the table to create the column. If this parameter is not specified, the new column will be added to the end of the table. Example: In this example, we add a new column "cus_age" in the existing...