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SQL Server由于主外键约束导致插入失败的记录方法

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--创建Department(deptID,deptName)和UserInfo(userID, userName, sex, loginDate,deptid)
--其中deptID,userID是自动增长的,并且是主键。deptid是外键。并且插入测试数据

--创建序列
CREATE SEQUENCE seq_Dep
 START WITH 1
 INCREMENT BY 1
 NOMAXVALUE
 NOCYCLE
 CACHE 30;
--建表Department
CREATE TABLE Department
(
 deptID VARCHAR2(10) PRIMARY KEY,
 deptName VARCHAR2(20)
);

--插入测试数据
INSERT INTO Department VALUES ('D'||seq_Dep.NEXTVAL,'人事部');
INSERT INTO Department VALUES ('D'||seq_Dep.NEXTVAL,'技术部');
INSERT INTO Department VALUES ('D'||seq_Dep.NEXTVAL,'后勤部');
INSERT INTO Department VALUES ('D'||seq_Dep.NEXTVAL,'经理部');
INSERT INTO Department VALUES ('D'||seq_Dep.NEXTVAL,'销售部');
INSERT INTO Department VALUES ('D'||seq_Dep.NEXTVAL,'服务部');
INSERT INTO Department VALUES ('D'||seq_Dep.NEXTVAL,'公关部');
COMMIT;

--创建序列
CREATE SEQUENCE seq_User
 START WITH 1
 INCREMENT BY 1
 NOMAXVALUE
 NOCYCLE
 CACHE 30;
--建表UserInfo
CREATE TABLE UserInfo
(
 userID VARCHAR2(10) PRIMARY KEY,
 userName VARCHAR2(20),
 sex VARCHAR2(2),
 loginDate DATE,
 deptid VARCHAR2(10) REFERENCES Department (deptID)
);

--插入测试数据
INSERT INTO UserInfo VALUES ('U'||seq_User.NEXTVAL,'Eric Schmidt','男','12-9月-07','D1');
INSERT INTO UserInfo VALUES ('U'||seq_User.NEXTVAL,'Larry Page','男','12-10月-07','D3');
INSERT INTO UserInfo VALUES ('U'||seq_User.NEXTVAL,'Sergey Brin','男','12-11月-07','D5');
INSERT INTO UserInfo VALUES ('U'||seq_User.NEXTVAL,'W. M. Coughran, Jr.','男','1-12月-07','D4');
INSERT INTO UserInfo VALUES ('U'||seq_User.NEXTVAL,'David C. Drummond','女','12-12月-01','D2');
INSERT INTO UserInfo VALUES ('U'||seq_User.NEXTVAL,'Alan Eustace','男','12-9月-07','D1');
INSERT INTO UserInfo VALUES ('U'||seq_User.NEXTVAL,'Jeff Huber','男','12-10月-07','D3');
INSERT INTO UserInfo VALUES ('U'||seq_User.NEXTVAL,'George Reyes','男','12-11月-07','D5');
INSERT INTO UserInfo VALUES ('U'||seq_User.NEXTVAL,'Elliot Schrage','男','1-12月-07','D4');
INSERT INTO UserInfo VALUES ('U'||seq_User.NEXTVAL,'Tim Armstrong','女','12-12月-01','D2');
INSERT INTO UserInfo VALUES ('U'||seq_User.NEXTVAL,'Nikesh Arora','女','12-12月-01','D2');
INSERT INTO UserInfo VALUES ('U'||seq_User.NEXTVAL,'Sukhinder','男','12-9月-07','D1');
INSERT INTO UserInfo VALUES ('U'||seq_User.NEXTVAL,'Vinton G. Cerf','男','12-10月-07','D3');
INSERT INTO UserInfo VALUES ('U'||seq_User.NEXTVAL,'George Reyes','男','12-11月-07','D5');
INSERT INTO UserInfo VALUES ('U'||seq_User.NEXTVAL,'Dave Girouard','男','1-12月-07','D4');
INSERT INTO UserInfo VALUES ('U'||seq_User.NEXTVAL,'Singh Cassidy','女','12-12月-01','D2');
COMMIT;

--3. 在deptid建立索引
CREATE INDEX deptid_index on UserInfo(deptid);

--4. 给Department和UserInfo创建同义词,名称分别是dept, sy_user
CREATE OR REPLACE SYNONYM dept FOR Department;
CREATE OR REPLACE SYNONYM sy_user FOR UserInfo;

/*
5. 通过同义词dept, user来创建视图,
视图要求能查询出“部门名称,部门编号,用户名,性别,注册时间”
*/
CREATE OR REPLACE VIEW view_dept_user
("部门名称","部门编号","用户名","性别","注册时间")
AS SELECT d.deptName,d.deptID,u.userName,u.sex,u.loginDate 
  FROM dept d ,sy_user u  
  WHERE d.deptID=u.deptid;

--14. 使用Instead Of触发器,往第5题创建的视图中插入数据。
SET SERVEROUTPUT ON;
INSERT INTO view_dept_user ('部门名称','部门编号','用户名','性别','注册时间')
  VALUES('仓储部','D6','Dejan Perkovic','男','1-1月-08');

/*
CREATE OR REPLACE VIEW view_dept_user
("部门名称","部门编号","用户名","性别","注册时间")
AS SELECT d.deptName,d.deptID,u.userName,u.sex,u.loginDate 
  FROM dept d ,sy_user u  
  WHERE d.deptID=u.deptid;
*/
CREATE OR REPLACE TRIGGER dept_user_insert
INSTEAD OF INSERT ON view_dept_user
FOR EACH ROW
DECLARE
   CURSOR cur_dept IS SELECT * FROM Department
   WHERE Department.deptID = :NEW.deptID;
   CURSOR cur_user IS SELECT * FROM sy_user
   WHERE sy_user.userName = :NEW.userName;
   d cur_dept%rowtype;
   u cur_user%rowtype;
   did dept.deptID%TYPE;
   uid sy_user.userID%TYPE;
BEGIN
   OPEN cur_dept;
   OPEN cur_user;
   FETCH cur_user INTO u;
   FETCH cur_dept INTO d;   
  /*
   如果插入的数据中部门ID不存在,则将 seq_Dep.NEXTVAL 产生的序号赋值给变量did,执行插入语句新增加一个部门。
   */
   IF cur_dept%NOTFOUND THEN
   did := 'D'||seq_Dep.NEXTVAL;
   INSERT INTO Department(deptID,deptName) VALUES(did,:NEW.deptName);
   /*
   如果插入数据中的员工不存在,则执行插入语句增加一个新员工
   */  
  IF cur_user%NOTFOUND THEN
 uid := 'U'||seq_User.NEXTVAL;
   INSERT INTO UserInfo(userID,userName,sex,loginDate,deptid) VALUES(uid,:NEW.userName,:NEW.sex,:NEW.loginDate,did);
   END IF;

  IF cur_dept%FOUND THEN   
  /*
   如果插入的数据中部门ID是已经存在的部门ID,则更新部门名称
   */
   did:=:NEW.deptID;
   UPDATE Department SET Department.deptName WHERE Department.deptID = :NEW.deptID;
   /*
   如果插入数据中的员工不存在,则将seq_User.NEXTVAL 产生的序号赋值给变量uid,执行插入语句增加一个新员工
   */
   IF cur_user%NOTFOUND THEN
   uid := 'U'||seq_User.NEXTVAL;
   INSERT INTO UserInfo VALUES(uid,:NEW.userName,:NEW.sex,:NEW.loginDate,:NEW.deptID);
   ELSE
   /*
   如果插入数据中的员工已存在,则根据部门ID、员工姓名 来更新员工的其他字段的值,员工ID为主键,不用更新。
   考虑到同名员工存在的可能,但员工的ID不可能相同的特点,需要根据插入数据中的部门ID、员工姓名来查询出
   符合要求的员工的ID,用员工ID来进行后续的操作
   */
   SELECT userID INTO uid FROM UserInfo WHERE UserInfo.userName=:NEW.userName AND UserInfo.deptID=did;

  UPDATE UserInfo SET UserInfo.sex = :NEW.sex,UserInfo.loginDate = :NEW.loginDate,UserInfo.deptID = :NEW.sex  
  WHERE UserInfo.userID=uid AND UserInfo.userName=:NEW.userName;
   END IF;
   END IF;
   CLOSE ecur;
   CLOSE dcur;
END dept_user_insert;
/
show errors;

出现的错误提示:

警告: 创建的触发器带有编译错误。

SQL> show errors;
TRIGGER DEPT_USER_INSERT 出现错误:

LINE/COL ERROR
-------- -----------------------------------------------------------------
3/31 PLS-00049: 错误的赋值变量 'NEW.DEPTID'
5/30 PLS-00049: 错误的赋值变量 'NEW.USERNAME'
20/56 PLS-00049: 错误的赋值变量 'NEW.DEPTNAME'
26/75 PLS-00049: 错误的赋值变量 'NEW.USERNAME'
26/89 PLS-00049: 错误的赋值变量 'NEW.SEX'
26/98 PLS-00049: 错误的赋值变量 'NEW.LOGINDATE'
33/10 PLS-00049: 错误的赋值变量 'NEW.DEPTID'
34/4 PL/SQL: SQL Statement ignored
34/46 PL/SQL: ORA-00927: 缺少等号
34/72 PLS-00049: 错误的赋值变量 'NEW.DEPTID'
40/37 PLS-00049: 错误的赋值变量 'NEW.USERNAME'

LINE/COL ERROR
-------- -----------------------------------------------------------------
40/51 PLS-00049: 错误的赋值变量 'NEW.SEX'
40/60 PLS-00049: 错误的赋值变量 'NEW.LOGINDATE'
40/75 PLS-00049: 错误的赋值变量 'NEW.DEPTID'
47/66 PLS-00049: 错误的赋值变量 'NEW.USERNAME'
49/40 PLS-00049: 错误的赋值变量 'NEW.SEX'
49/70 PLS-00049: 错误的赋值变量 'NEW.LOGINDATE'
49/103 PLS-00049: 错误的赋值变量 'NEW.SEX'
50/53 PLS-00049: 错误的赋值变量 'NEW.USERNAME'
55/5 PLS-00103: 出现符号 "DEPT_USER_INSERT"在需要下列之一时:
   if

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