以下是一个带参数的存储过程s_score,参数@sname将接收由调用程序指定的输入值(学生姓名),请将下面的语句补充完整。 CREATE PROCEDURE s_score @sname char(8) AS SELECT score FROM stinfo s JOIN scinfo sc ON s.stid=sc.stid WHERE stname=________
以下是一个带参数的存储过程s_score,参数@sname将接收由调用程序指定的输入值(学生姓名),请将下面的语句补充完整。 CREATE PROCEDURE s_score @sname char(8) AS SELECT score FROM stinfo s JOIN scinfo sc ON s.stid=sc.stid WHERE stname=________
以下是sems数据库的一个带参数的存储过程s_score,参数@sname将接收由调用程序指定的输入值(学生姓名),其中Stname、stid分别是Stinfo表中的姓名、学号字段,stid、Score分别是scinfo表中的学号、成绩字段。请将下面的语句补充完整。(注意:请使用小写字母答题)CREATE PROCEDURE s_score @sname char(8)AS SELECT Score FROM Stinfo s JOIN scinfo sc ON s.stid=sc.stid WHERE Stname=________
以下是sems数据库的一个带参数的存储过程s_score,参数@sname将接收由调用程序指定的输入值(学生姓名),其中Stname、stid分别是Stinfo表中的姓名、学号字段,stid、Score分别是scinfo表中的学号、成绩字段。请将下面的语句补充完整。(注意:请使用小写字母答题)CREATE PROCEDURE s_score @sname char(8)AS SELECT Score FROM Stinfo s JOIN scinfo sc ON s.stid=sc.stid WHERE Stname=________
对于关系模式S(Sno,Sname,Age,Dept),C(Cno,Cname,Teacher),SC(Sno,Cno,Score),下列查询结果相同的是( )。I.πSname((S) ∞σScore>60(SC)) II.πSname(σScore>60(S∞SC)) III.σScore>60 (πSname (S∞ SC)) IV.σScore>60 (πSname (S)∞ (SC)) A: I与II B: III与IV C: I与III D: II与IV
对于关系模式S(Sno,Sname,Age,Dept),C(Cno,Cname,Teacher),SC(Sno,Cno,Score),下列查询结果相同的是( )。I.πSname((S) ∞σScore>60(SC)) II.πSname(σScore>60(S∞SC)) III.σScore>60 (πSname (S∞ SC)) IV.σScore>60 (πSname (S)∞ (SC)) A: I与II B: III与IV C: I与III D: II与IV
---Our monitor is really into Jay Zhou's music.He has at least_______ Jay Zhou's CDs.--- No wonder he can sing every single song of Jay Zhou's very well. A: three scores of B: three score of C: three score D: score of
---Our monitor is really into Jay Zhou's music.He has at least_______ Jay Zhou's CDs.--- No wonder he can sing every single song of Jay Zhou's very well. A: three scores of B: three score of C: three score D: score of
以下调用第1题的存储过程s_score的语句,要求通过名字标识传递参数“李欣”,实现查询。 EXEC s_score ________
以下调用第1题的存储过程s_score的语句,要求通过名字标识传递参数“李欣”,实现查询。 EXEC s_score ________
Mary’s score on the test is the highest in her class; She____have studied very hard.
Mary’s score on the test is the highest in her class; She____have studied very hard.
完善以下调用上一题创建的存储过程s_score的语句,通过名字标识传递参数 '李欣' ,实现查询。EXEC s_score ________(注意:请使用小写字母答题,答案不包含空格)
完善以下调用上一题创建的存储过程s_score的语句,通过名字标识传递参数 '李欣' ,实现查询。EXEC s_score ________(注意:请使用小写字母答题,答案不包含空格)
59() A: everything is wrong B: Do you agree C: let’s total the score D: let’s do it E: we can do it F: Here is the answer sheet G: Here is your score H: the percentage is incorrect
59() A: everything is wrong B: Do you agree C: let’s total the score D: let’s do it E: we can do it F: Here is the answer sheet G: Here is your score H: the percentage is incorrect
关系SC(S,SNAME,SEX,SCORE,CNAME),从关系SC中检索男生(SEX =M)并且成绩大于等于60的学生姓名,下述表示( )是正确的。 Ⅰ.ЛSNAME(σSCORE>60□SEX=’M’(SC)) Ⅱ.σSCORE>=60□SEX=’M’(ЛSNAME(SC)) Ⅲ.ЛSNAME(σSCORE>=60□SEX=’M’(ЛSNAME,SCORE,SEX(SC))) A: Ⅰ和Ⅱ B: Ⅱ C: Ⅰ和Ⅲ D: Ⅰ
关系SC(S,SNAME,SEX,SCORE,CNAME),从关系SC中检索男生(SEX =M)并且成绩大于等于60的学生姓名,下述表示( )是正确的。 Ⅰ.ЛSNAME(σSCORE>60□SEX=’M’(SC)) Ⅱ.σSCORE>=60□SEX=’M’(ЛSNAME(SC)) Ⅲ.ЛSNAME(σSCORE>=60□SEX=’M’(ЛSNAME,SCORE,SEX(SC))) A: Ⅰ和Ⅱ B: Ⅱ C: Ⅰ和Ⅲ D: Ⅰ
表stinfo和表scinfo,语句 SELECT stname, cno ,score FROM stinfo s LEFT JOIN scinfo sc ON s.stid=sc.stid 与语句 SELECT stname, cno,score FROM scinfo sc LEFT JOIN stinfo s ON s.stid=sc.stid 查询结果集完全相同
表stinfo和表scinfo,语句 SELECT stname, cno ,score FROM stinfo s LEFT JOIN scinfo sc ON s.stid=sc.stid 与语句 SELECT stname, cno,score FROM scinfo sc LEFT JOIN stinfo s ON s.stid=sc.stid 查询结果集完全相同