![](https://cos-cdn.shuashuati.com/pipixue-wap/2020-1230-1107-56/ti_inject-812ce.png)
在SQL Server 数据库中,有关下列T-SQL语句的功能,说法正确的是( )。 DECLARE @I int, @J int SET @I=0 WHILE (@I < 2) BEGIN SELECT @J=COUNT(*) FROM stuMarks WHERE writtenExam<60 IF(@J>0) UPDATE stuMarks SET writtenExam=writtenExam+5 WHERE writtenExam<60 ELSE BREAK SET @I = @I + 1 END SELECT stuNo,成绩=CASE WHEN writtenExam<60 THEN '不及格' ELSE '及格' END FROM stuMarks