VF数据库考试题,大家快来帮帮我!!!!!
1 B C A A C6 D C D A D11 (11)在以下四组函数运算中,结果相同copy的是 。A) LEET(“Visual FoxPro”,6)与SUBSTR(“Visual FoxPro”,1,6)B) YEAR(DATE())与SUBSTR(DTOC(DATE),7,2)C) VARTYPE(“36-5*4″)与VARTYPE(36-5*4)D) 假定A=”this”, B=”is a string”, A-B与A+B A答案”LEET”应为”LEFT” 结果是zd相同的D答案可能”THIS”后面可能有空格.如有空格,结果不相同.如没有空格,结果一样.12 C B D D C C C
SQL期末考题。帮帮忙。100分。
查询题:1).select * from EMP where DEPTNO=’20’;2).select * from EMP where ENAME like ‘MA%’;3).select * from EMP order by JOB;4).select b.DNAME,COUNT(a.*) as num from EMP a left join DEPT b on a.DEPTNO=b.DEPTNO group by b.DNAME5).select * from EMP where SAL>(select max(SAL) as SAL from EMP where DEPTNO=’20’);程序题:1).函数:CREATE FUNCTION [SumN] (@n INT) RETURNS INT AS BEGIN declare @out INT,@i
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