关于两个表对应的不匹配查询的正确语句为()
A: SELECT[ccode]FROM[GL_accsum]where not exists(SELECT*FROM[code]group by ccode having[ccode]=[GL_accsum].[ccode])
B: SELECT[ccode]FROM[GL_accsum]v where ccode not in(SELECTccodeFROM[code] where[ccode]=[v].[ccode])
C: select A. ccode from[GL_accsum]a left join code bon A.[ccode]=[b].[ccode] where B.ccode is null
D: select A.ccode codes from[GL_accsum]a join code bon A.[ccode]=[b].[ccode] where B.ccode is null
A: SELECT[ccode]FROM[GL_accsum]where not exists(SELECT*FROM[code]group by ccode having[ccode]=[GL_accsum].[ccode])
B: SELECT[ccode]FROM[GL_accsum]v where ccode not in(SELECTccodeFROM[code] where[ccode]=[v].[ccode])
C: select A. ccode from[GL_accsum]a left join code bon A.[ccode]=[b].[ccode] where B.ccode is null
D: select A.ccode codes from[GL_accsum]a join code bon A.[ccode]=[b].[ccode] where B.ccode is null
举一反三
- 关于两个表对应的不匹配查询的正确语句为() A: SELECT[ccode]FROM[GL_accsum]where not exists(SELECT*FROM[code]group by ccode having[ccode]=[GL_accsum].[ccode]) B: SELECT[ccode]FROM[GL_accsum]v where ccode not in(SELECTccodeFROM[code] where[ccode]=[v].[ccode]) C: select ccode from[GL_accsum]a left join code bon [ccode]=[b].[ccode] where ccode is null D: select ccode codes from[GL_accsum]a join code bon [ccode]=[b].[ccode] where ccode is null
- 以用友U8的数据表为例,记账凭证存储科目时是存储科目代码,而显示时是科目名称。科目名称来源于( )。 A: gl_accvouch B: gl_accsum C: code D: ccode
- 下列条码中具有L型寻像图形的是() A: APDF 417 B: BData Martix C: CCODE ONE D: DCODE 49
- 以下代码,用户输入正确的是( )。<;input type="text" name="ccode" pattern="[A-z]{3}" title="请输入国家代码" />; A: 3Ac B: U-V C: B2C D: mAc
- 从语法上看,以下语句哪个是正确的?() A: select name,code from zufang where code=’BJYZ91876799’; B: load data local inpath’/data/alldatas’ into table tb4; C: from zufang select name,code where code=’BJYZ91876799’; D: from zufang where code=’BJYZ91876799’ select name,code;