共找到 17 与sel 相关的结果,耗时3 ms
对由SELECT—FROM—WHERE—GROUP—ORDER组成的SQL语句,其在被DBMS处理时,各子句的执序次序(43)。A.SELECT—FROM—GROUP—WHERE—ORDERB.FROM—SELECT—WHERE—GROUP—ORDERC.FROM—WHERE—GROUP—SELE
Mary went to the box office at lunch time, but all the tickets ______ out.A. would sell B. had sold C. have sold D. was selling
Which of the following places is named after a person? ( )A. Raffles Place.B. Selector Airbase.C. Piccadilly Circus.D. Paya Lebar Crescent.
现要从学生选课表中查找缺少学习成绩(G)的学生学号和课程号,相应的SQI语句如下,将其补充完整。 SELECT S#,C# FROM SC WHERE( )A.G<=0B.O=0C.G=NULLD.OIS NULL
现要从学生选课表中查找缺少学习成绩(G)的学生学号和课程号,相应的SQL语句如下,将其补充完整。 SELECT S#,C# FROM SC WHERE ( )A.G<=0B.G=0C.G=NULLD.GIS NULL
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