INSERT and UPDATE SQL statements of

. 1  # the INSERT statement to write one or more records Syntax
 2  the INSERT  the INTO t_dept is (DEPTNO, DNAME, LOC) the VALUES ( 50 , "Technology", "Beijing");
 . 3  the INSERT  the INTO t_dept is (DEPTNO, DNAME, LOC) the VALUES ( 60 "logistics", "Beijing"), ( 70 "security department", "Beijing");
 4  # to add a technical department employee records
 5  INSERT  iNTO t_emp (empno, ename, the Job, MGR, the HireDate, SAL, COMM, DEPTNO) 
　　the VALUES ( 8001 , "Liu Na", "SALESMAN", 8000 , " 1988 - 12 is - 20 is ", 2000 ,NULL,(SELECT deptno FROM t_dept WHERE dname="技术部"));
 6 # INSERT方言
 7 INSERT INTO t_emp SET empno=8002,ename="JACK",job="SALESMAN",mgr=8000,hiredate="1985-3-14",sal=2500,comm=NULL,deptno=50;
 8 # IGNORE关键字
 9 INSERT IGNORE INTOt_dept (deptno, DNAME, LOC) VALUES ( 40 , "Technology", "Beijing"), ( 80 "personnel department", "Beijing");
 10  # UPDATE each employee's number and the number will increase by one boss , complete with the ORDER bY clause.
11  UPDATE t_emp the SET empno = empno + 1 , MGR = MGR + 1  the ORDER  BY empno DESC ;
 12  # UPDATE monthly income of three employees basic salary minus $ 100, complete with a LIMIT clause.
13 is  the UPDATE t_emp the SET SAL = SAL - 100  the ORDER  BY (SAL + the IFNULL (COMM, 0)) DESC the LIMIT . 3 ;
 14  # 10 sectors which seniority over 20 years employees salary increase 200 yuan
 15  the UPDATE t_emp the SET SAL = SAL + 200 is  the WHERE DEPTNO = 10  the AND  the DATEDIFF (the NOW (), HireDate) / 365 > = 20 is ;
 16  # ALLEN transferred to the RESEARCH department, position change ANYLYST
 17  UPDATE t_emp E JOIN t_dept d the SET e.deptno = d.deptno, e.job = "ANALYST" the WHERE e.ename = "ALLEN" the ANDd.dname = "s";
 18 is  # below the company salary average salary of employees salary increase 150
 . 19  the UPDATE t_emp E the JOIN ( the SELECT  the AVG (SAL) AVG  the FROM t_emp) T the ON e.sal < T. AVG  the SET e.sal = e.sal + 150 
20  # or the staff department not less than 2000 SALES salary employees are transferred to 20 sector
 21 is  the UPDATE t_emp E the LEFT  the JOIN t_dept is D the ON e.deptno = d.deptno the SET e.deptno = 20  the WHERE E .deptno IS NULL OR(d.dname="SALES" AND e.sal<2000);
Table connection, the connection table or table join, the important thing to say three times
INSERT and UPDATE SQL statements of

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