Dropping a Column : Column « Table Index « SQL / MySQL

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Dropping a Column

      
mysql>
mysql>
mysql> CREATE TABLE sales_rep(
    ->   employee_number INT,
    ->   surname VARCHAR(40),
    ->   first_name VARCHAR(30),
    ->   commission TINYINT
    -> );
Query OK, 0 rows affected (0.00 sec)

mysql>
mysql>
mysql> INSERT INTO sales_rep values(4,'Rive','Mongane',10);
Query OK, 1 row affected (0.00 sec)

mysql> INSERT INTO sales_rep values(5,'Smith','Mike',12);
Query OK, 1 row affected (0.00 sec)

mysql>
mysql>
mysql> ALTER TABLE sales_rep DROP first_name;
Query OK, 2 rows affected (0.01 sec)
Records: 2  Duplicates: 0  Warnings: 0

mysql>
mysql>
mysql>
mysql> drop table sales_rep;
Query OK, 0 rows affected (0.00 sec)

mysql>

   
    
    
    
    
    
  

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