SQL2008自定义聚合函数

要使用.Net写的自定义聚合函数，需开启clr功能reconfigure;execsp_configure'clrenabled','1'注册assemblyCREATEASSEMBLYStringUtilitiesFROM'D:\程序\CRM\CRM_APP\CustomDefineAggregate\bin\Release\CustomDefineAggregate.dll'WITHPERMISSION_SET=SAFE;注册聚合函数CREATEAGGREGATEConcatenate(@inputnvarchar(4000))RETURNS