_____, water turns into ice.
A、When freezing
B、When frozen
C、When it has been frozen
D、When freezes to it
在SQL Setver 2000中，有教师表(教师号，姓名，职称，工资)。现要根据教师的职称来添加教师的工资，增加规则为：“教授”增加400，“副教授”增加300，“讲师”增加200。下列语句中正确的是 ______。A．UPDATE教师表SET工资=工资+CASE职称 WHEN‘教授’THEN 400 WHEN‘副教授’THEN 300 WHEN‘讲师’THEN 200 ENDB．UPDATE教师表SET工资=工资+CASE职称 WHEN职称=‘教授’THEN 400 WHEN职称=‘副教授’THEN 300 WHEN职称=‘讲师’THEN 200 ENDC．UPDATE教师表SET工资=CASE职称 WHEN‘教授’THEN工资=工资+400 WHEN‘副教授’THEN工资=工资+300 WHEN‘讲师’THEN工资=工资+200 ENDD．UPDATE教师表SET工资=工资+CASE职称 WHEN职称=‘教授’THEN工资=工资+400 WHEN职称=‘副教授’THEN工资=工资+300 WHEN职称=‘讲师’THEN工资=工资+200 END
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下列CASE语句中执行结果不为空的是()A、SELECTCASEWHEN125THEN'true'ELSE'false'END;B、SELECTCASEBINARY'B'WHEN'a'THEN1WHEN'b'THEN2END;C、SELECTCASEWHEN-10THEN'true'END;D、SELECTCASE'one'WHEN1THEN'one'WHEN2THEN'two'END;
在SQL Server 2000中，有教师表(教师号，姓名，职称，工资)。现要根据教师的职称来添加教师的工资，增加规则为：“教授”增加400，“副教授”增加300，“讲师”增加200。下列语句中正确的是______。A)UPDATE教师表SET工资=工资+CASE职称WHEN‘教授’THEN 400WHEN‘副教授’THEN 300WHEN‘讲师’THEN 200ENDB)UPDATE教师表SET工资=工资+CASE职称WHEN职称=‘教授’THEN 400WHEN职称=‘副教授’THEN 300WHEN职称=‘讲师’THEN 200ENDC)UPDATE教师表SET工资=CASE职称WHEN‘教授’THEN工资=工资+400WHEN‘副教授’THEN工资=工资+300WHEN‘讲师’THEN工资=工资+200ENDD)UPDATE教师表SET工资=工资+CASE职称WHEN职称=‘教授’THEN工资=工资+400WHEN职称=‘副教授’THEN工资=工资+300WHEN职称=‘讲师’THEN工资=工资+200ENDA．B．C．D．
It was _____ he came bank from Africa that wear _________ he met the girl he would like to marry.A. when; thenB. not; untilC. not until; thatD. only; when
Youhavecreatedalocallymanagedtablespacebyissuingthefollowingcommand：CREATETABLESPACEdata1DATAFILE’data1_file1.dbf’SIZE10MAUTOEXTENDONMAXSIZEUNLIMITED；FortheDATA1tablespace，youhavesetthewarninglevelalertlimitto70percent.Inwhichsituationwillawarninglevelalertbegenerated？（）A.when700KBisusedB.when700KBisleftasfreespaceC.when7MBisusedD.when7MBisleftasfreespaceE.noalertwillbegeneratedbecauseanautoextensibledatafileisincludedinthetablespace
Whichtwotriggersaremousemovementtriggers?()A.When-Mouse-UpB.When-Mouse-MoveC.When-Mouse-DownD.When-Mouse-ClickE.When-Mouse-Leave
健康计划的总体目标中的三个"W"指A、who，what，whenB、what，when，whyC、who，what，whichD、what，when，whereE、when，where，which
