Add A Column MySql Terminal Command

If you're working with a MySQL database, you may find that you need to add a new column to a table. Fortunately, adding a column to a MySQL table is a straightforward process that we will do using the MySQL terminal command. #terminal #mysql Here's how:

Open the MySQL terminal

First, open the MySQL terminal and connect to the database you want to modify. Use the USE command to select the database you want to work with.

The `ALTER TABLE` command

Next, use the ALTER TABLE command to modify the table you want to add a column to. The basic syntax of this command is as follows: ALTER TABLE table_name ADD COLUMN column_name column_definition;. Replace table_name with the name of the table you want to modify, column_name with the name of the new column you want to add, and column_definition with the data type and any additional constraints for the new column.

Example

For example, to add a new column called email to a table called users, you might use the following command: ALTER TABLE users ADD COLUMN email VARCHAR(255) NOT NULL;. This command adds a new column called email to the users table with a data type of VARCHAR and a length of 255 characters, and the NOT NULL constraint.

Use the `DESCRIBE` command

Once you've entered the ALTER TABLE command, MySQL will add the new column to the table. You can use the DESCRIBE command to confirm that the new column has been added.

Exit Command

Finally, use the EXIT command to exit the MySQL terminal.