数据库一列拼接成一个字符串

sqlserver:

SELECT
*,
( SELECT Hospitalproperty2 + ' ' FROM testtable WHERE Hospitalproperty = 'zhangs' FOR XML path ( '' ) ) 
FROM
testtable

 

MySQL：

select *,(select GROUP_CONCAT(b.Hospitalproperty2)from testtable b) from testtable;