CREATE OR REPLACE TRIGGER check_enumber
BEFORE INSERT on emp
FOR EACH ROW
Declare result NUMBER;
dnumber NUMBER;
d_name VARCHAR(20);
Begin
check_eno(:new.ENO, result);
IF result = -1 THEN
RAISE_APPLICATION_ERROR (-20502, 'deptno already exist');
insert into emp_audit(ENO,ENAME,SAL,DNAME) values
(:new.ENO,:new.ENAME,:new.SAL,:new.DNAME);
END IF;
IF Find_Dn(:new.DNAME) = 1 THEN
Select DNO, DNAME INTO dnumber, d_name
FROM dept
WHERE :new.DNAME = d_name;
:new.dno = dnumber;
IF d_name = 'SALES' THEN
:new.COMM := 300;
Update DEPT Set tot_sals = tot_sals + :new.SAL;
Update DEPT Set tot_emps = tot_emps + 1;
END IF;
END IF;
END;
/
LINE/COL 错误
16/13 PLS-00103：在预期以下情况之一时遇到符号“=”：：=。( @ % ; 指示符 ":= 符号被插入到 "=" 之前以继续。
19/36 PLS-00103：在预期以下情况之一时遇到符号“_”：。( , * @ % & - + ; / at mod remaining rem return 返回 where || multiset 符号 ". 被插入到 "_" 之前以继续。
----------------------新代码和错误消息------------ ----------------
SQL> CREATE OR REPLACE TRIGGER check_enumber
2 BEFORE INSERT on emp
3 FOR EACH ROW
4 Declare result NUMBER;
5 dnumber NUMBER;
6 d_name VARCHAR(20);
7 Begin
8 check_eno(:new.ENO, result);
9 IF result = -1 THEN
10 RAISE_APPLICATION_ERROR (-20502, 'deptno already exist');
11 insert into emp_audit(ENO,ENAME,SAL,DNAME) values
12 (:new.ENO,:new.ENAME,:new.SAL,:new.DNAME);
13 END IF;
14
15 IF Find_Dname(:new.DNAME) = 1 THEN
16 Select DNO, DNAME INTO dnumber, d_name
17 FROM dept
18 WHERE :new.DNAME :=d_name;
19 :new.dno = dnumber;
20 IF d_name = 'SALES' THEN
21 :new.COMM := 300;
22 Update DEPT Set tot_sals = tot_sals + :new.SAL;
23 Update DEPT Set tot_emps = tot_emps + 1;
24 END IF;
25 END IF;
26 END;
27 /
警告：使用编译错误创建触发器。
SQL> 显示错误；TRIGGER CHECK_ENUMBER 的错误：
LINE/COL 错误
13/2 PL/SQL：SQL 语句被忽略 15/20 PL/SQL：ORA-01745：无效的主机/绑定变量名 16/11 PLS-00103：在预期以下之一时遇到符号“=”：：=。( @ % ; 指示符 ":= 符号被插入到 "=" 之前以继续。