A. SET @Cjb_Cur = CURSOR FOR SELECT * FROM CJBB. CREATE……
将游标变量@Cjb_Cur赋值为CJB全部记录的语句为()。
A. SET @Cjb_Cur = CURSOR FOR SELECT * FROM CJB
B. CREATE @CURSOR Cjb_Cur AS SELECT * FROM CJB
C. DECLARE @Cjb_Cur AS TABLE CJB
D. DECLARE @Cjb_Cur CURSOR FOR SELECT * FROM CJB