mysql 查询多条结果,合并成一个结果,使用 group_concat()函数

开始查询的结果sql

SELECT EMPLOYEE_NAME FROM MST_EMPLOYEE EM JOIN P_PROEMPLOYEE PRO ON PRO.PE_EID = EM.EMPLOYEE_ID AND EM.EMPLOYEE_DELFLG = '1' 


AND EM.EMPLOYEE_STATUSID <> '1' JOIN P_PROJECT P ON P.PRO_RESID = PRO.PE_PROID AND P.PRO_DELFLG = '1' WHERE PRO.PE_PROID = '64-11181144727'

使用group_concat()函数查询修改后的结果:

select (

select group_concat(EMPLOYEE_NAME) from MST_EMPLOYEE EM, P_PROEMPLOYEE PRO,P_PROJECT P WHERE PRO.PE_EID = EM.EMPLOYEE_ID AND EM.EM PLOYEE_DELFLG = '1' 

AND EM.EMPLOYEE_STATUSID <> '1' AND P.PRO_RESID = PRO.PE_PROID AND PRO.PE_PROID =  '64-11181144727'

) as AVALUE from MST_EMPLOYEE limit 1;

比如开始查询的结果为

EMPLOYEE_NAME

张三

李四

王五

则修改后查询的结果集为:

EMPLOYEE_NAME

张三,李四,王五