Alargeproportionofthestudiesofbehaviorusedanimalsa-X题卡

如下程序段定义了学生成绩的记录类型由学号姓名和三门课程成绩百分制组成 TypeStud noAs

Dim S AS Stud Stud．no=1001 Stud．name=“舒宜” Stud．score=78，88，96 Dim S As Stud S．no=1001 S．name=“舒宜” S．score=78，88，96 Dim S As Stud Stud．no=1001 Stud．name=“舒宜” Stud．score(1)=78 Stud．score(2)=88 Stud．score(3)=96 Dim S As Stud S．no=100l S．name=“舒宜” S．score(1)=78 S．score(2)=88 S．score(3)=96

删除学生表STUD中关于学号XH必须取惟一值的约束实现该功能的正确SQL语句是______

ALTER TABLE STUD ADD XH UNIQUE ALTER TABLE STUD MODIFY XHUNIQUE ALTER TABLE STUD DROP UNIQUE(XH) ALTER TABLE STUD MODIFY UNIQUE(XH)

Aperson’swealthisoftenininverseproportiontotheirha

equal certain large opposite

如下程序段定义了学生成绩的记录类型由学号姓名和三门课程成绩百分制组成TypeStudnoAsInte

Dim S As Stud Stud.no=1001 Stud.name="舒宜" Stud.score=78，88，96 Dim S As Stud S.no=1001 S.name="舒宜" S.score=78，88，96 Dim S As Stud Stud.no=1001 Stud.name="舒宜" Stud.score(1)=78 Stud.score(2)=88 Stud.score(3)=96

下面程序段定义了学生成绩的记录类型由学号姓名和三门课程成绩组成TypeStudsnoAsIntege

Dim S As Stud Stud.sno=1001 Stud.sname="高翔" Stud.score=84,98,96 Dim S As Stud S.sno=1001 S.sname="高翔" S.score=84,98,96 Dim S AS Stud Stud.sno=1001 Stud.sname="高翔" Stud.score(1)=84 Stud.score(2)=98 Stud.score(3)=96 Dim S As Stud S.sno=1001 S.sname="高翔" S.score(1)=84 S.score(2)=98 S.score(3)=96

如下程序段定义了学生成绩的记录类型由学号姓名和三门课程成绩百分制组成TypeStudnoAsInte

Dim S As Stud Stud.no=1001 Stud.name="舒宜" Stud.score=78,88,6 Dim S As Stud S.no=1001 S.name="舒宜" S.score=78,88,96 Dim S As Stud Stud.no=1001 Stud.name="舒宜" Stud.score(1)=78 Stud.score(2)=88 Stud.score(3)=96 Dim S As Stud S.no=1001 S.name="舒宜" S.score(1)=78 S.score(2)==88 S.score(3)=96

_____thecompressionratio_____theproportionofthehea

The high / the large The higher / the larger The lower/the larger The low / the large

删除学生表STUD中关于学号XH必须取唯一值的约束实现该功能的正确SQL语句是______

ALTER TABLE STUD ADD XH UNIQUE ALTER TABLE STUD MODIFY XH UNIQUE ALTER TABLE STUD DROP UNIQUE(XH) ALTER TABLE STUD MODIFY UNIQUE(X

如下程序段定义了学生成绩的记录类型由学号姓名三门课程成绩百分制组成TypeStudnoAsInteg

Dim S As Stud Stud.no=0201 Stud.name="李平" Stud.score=78,88,96 Dim S As Stud S.no=0201 S.name="李平" S.score=78,88,96 Dim S As Stud S.no=0201 S.name="李平" S.score(1)=78 S.score(2)=88 S.score(3)=96 Dim S As Stud Stud.no=0201 Stud.name="李平" Stud.score(1)=78 Stud.score(2)=88 Stud.score(3)=96

将表STUD中性别为男的学生的年龄加2能实现此功能的语句是______

SELECT年龄+1 FROM STUD WHERE性别="男" ALTER STUD年龄WITH年龄+1 WHERE性别="男" UPDATE STUD SET年龄=年龄+1 WHERE 性别="男" UPDATE STUD年龄WITH年龄+1 WHERE性别="男"

在学生表STUD中查询所有姓张的学生的信息使用的SQL语句是______

SELECT*FROM STUD WHERE 姓名 LIKE"张%” SELECT*FROM STUD WHERE 姓名 IN("张%") SELECT*FROM STUD WHERE 姓名 LIKE"张$" SELECT*FROM STUD WHERE 姓名 IN"张$)"

Aperson’swealthisoftenininverseproportiontotheirh

equal certain large opposite

China’spopulation________characterizebyitslargepro

在学生表STUD中查询所有小于20岁的学生的姓名XM及其年龄SA实现该功能的正确SQL语句是____

SELECT XM,SA FROM STUD FOR SA＜20 SELECT XM,SA FROM STUD WHERE NOT SA＞＝20 SELECT XM,SA ON STUD FOR SA＜20 SELECT XM,SA ON STUD WHERE SA＜20

Aperson’swealthisoftenin{{U}}inverse{{/U}}proporti

equal opposite certain large

在学生表STUD中查询所有姓张的学生的信息使用的SQL语句是______

SELECT * FROM STUD WHERE 姓名LIKE“张％” SELECT * FROM STUD WHERE 姓名IN(“张％”) SELECT * FROM STUD WHERE 姓名LIKE“张$” SELECT * FROM STUD WHERE 姓名IN(“张$)”

如下程序段定义了学生成绩的记录类型由学号姓名和三门课程成绩百分制组成TypeStudnoAsInte

Dim S As Stud Stud.no=1001 Stud.name="舒宜" Stud.score=78,88,6 Dim S As Stud S.no=1001 S.name="舒宜" S.score=78,88,96 Dim S As Stud Stud.no=1001 Stud.name="舒宜" Stud.score(1)=78 Stud.score(2)=88 Stud.score(3)=96

如下程序段定义了学生成绩的记录类型由学号姓名和三门课程成绩百分制组成 TypeStud no

Dim S AS Stud Stud no=1001 Stud．name=”舒宜” Stud．score=78，88，96 Dim S As Stud S．no=1001 S．name=”舒宜” S．score=78，88，96 Dim S As Stud D) Stud．no=1001 Stud．name=”舒宜” Stud．score=78 Stud．score=88 Stud．score=96 Dim S As Stud S．no=1001 S．name=”舒宝” S．score=78 S．score=88 S．score=96

如下程序段定义了学生成绩的记录类型由学号姓名和三门课程成绩百分制组成TypeStudnoAsInte

Dim S As Stud Stud.no = 1001 Stud.name = "舒宜" Stud.score = 78,88,96 Dim S As Stud S.no = 1001 S.name = "舒宜" S.score = 78,88,96 Dim S As Stud Stud.no = 1001 Stud.name = "舒宜" Stud.score(1)= 78 Stud.score(2)= 88 Stud.score(3)= 96

如下程序段定义了学生成绩的记录类型由学号姓名和三门课程成绩百分制组成TypeStudnoAsInte

Dim S As Stud Stud.no=1001 Stud.name="舒宜" Stud.score=78，88，96 Dim S As Stud S.no=1001 S.name="舒宜" S.score=78，88，96 Dim S As Stud Stud.no=1001 Stud.name="舒宜" Stud.Score(1)=78 Stud.score(2)=88 Scud.score(3)=96

A large proportion of the studies of behavior used animals as subjects, especially pigeons, rats, an...

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