SQL Server union联合结果集使用的简单示例

感兴趣的小伙伴，下面一起跟随脚本之家 jb51.cc的小编两巴掌来看看吧！

代码如下:

 
CREATE TABLE T_TempEmployee (FIdCardNumber VARCHAR(20),FName VARCHAR(20),FAge int,PRIMARY KEY(FIdCardNumber)); 
INSERT INTO T_TempEmployee(FIdCardNumber,FName,FAge) VALUES('1234567890121','Sarani',33); 
INSERT INTO T_TempEmployee(FIdCardNumber,FAge) VALUES('1234567890122','Tom',26); 
INSERT INTO T_TempEmployee(FIdCardNumber,FAge) VALUES('1234567890123','Yalaha',38); 
INSERT INTO T_TempEmployee(FIdCardNumber,FAge) VALUES('1234567890124','Tina',FAge) VALUES('1234567890125','Konkaya',29); 
INSERT INTO T_TempEmployee(FIdCardNumber,FAge) VALUES('1234567890126','Fotifa',46); 

代码如下:

 
select FNumber,FAge from T_Employee 
union 
select FIdCardNumber,FAge from T_TempEmployee 

代码如下:

 
select FNumber,FAge,FDepartment from T_Employee 
union 
select FIdCardNumber,'临时工，无部门' from T_TempEmployee 

代码如下:

 
select FName from T_Employee 
union all 
select FName from T_TempEmployee 

（编辑：安卓应用网）

【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容!