不允许在用户定义函数主体中内置不确定函数(只针对SQL SERVER2000,SQL SERVER2005可以);
这些不确定函数如下:
@@CONNECTIONS
@@TOTAL_ERRORS
@@CPU_BUSY
@@TOTAL_READ
@@IDLE
@@TOTAL_WRITE
@@IO_BUSY
GETDATE
@@MAX_CONNECTIONS
GETUTCDATE
@@PACK_RECEIVED
NEWID
@@PACK_SENT
RAND
@@PACKET_ERRORS
TEXTPTR
@@TIMETICKS