SQL——将两列合并成一列

将两列合并连接成一列，需要注意的是列的格式必须是NVARCHAR或者VARCHAR类型

1 SELECT \',\'+Convert(NVARCHAR(30), call_uuid, 0 ) +\',\'+agent_code 
2 as PerDateFROM cc_log_call_eco where agent_code=\'1001\'

 

	PerDate
1	,980408102500000,1001
2	,980414313125000,1001
3	,980415770937500,1001
4	,980416111875000,1001