INSERT
Format is as follows:
INSERT INTO DEPT(DNAME,DEPTNO)
VALUES('A',10)
If you insert the value tables, do not write a specific value.
Queries can also be null;
&: May be input through the keyboard;
It may also be inserted into another table in the query with the data out
update
Format (update..set ..)
UPDATE EMP
SET JOB='MANAGER'
WHERE ENAME='MARTIN'
1. This command can be changed a plurality of rows; a plurality of columns of data
DELETE
format
DELETE FROM EMP
WHERE EMPNO='7654
Transaction control commands (things should be said that this file)
'Commit; you want to submit this order, or to modify are temporary;
SET AUTOCOMMIT ON; (automatic setting)
ROLLBACK (Rollback command)
