Question- How will You extend a MySQL table with additional columns ?
Answer-
To add a column called email to the contacts table created in Create a basic MySQL table with a datatype of VARCHAR(80)
use the following SQL statement:
This first statement will add the email column to the end of the table. To insert the new column after a specific column, such as name, use this statement:
If you want the new column to be first, use this statement:
Answer-
MySQL tables are easy to extend with additional columns.
To add a column called email to the contacts table created in Create a basic MySQL table with a datatype of VARCHAR(80)
use the following SQL statement:
ALTER TABLE contacts ADD email VARCHAR(60);
This first statement will add the email column to the end of the table. To insert the new column after a specific column, such as name, use this statement:
ALTER TABLE contacts ADD email VARCHAR(60) AFTER name;
If you want the new column to be first, use this statement:
ALTER TABLE contacts ADD email VARCHAR(60) FIRST;
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