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一些比较有用的sql语句实例
文章分类:数据库   文章来源:本站整理   发布时间:2008-9-14 8:43:42   浏览次数:187

1Examples


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selectid,age,FullnamefromtableOnea
wherea.id!=(selectmax(id)fromtableOnebwherea.age=b.ageanda.FullName=b.FullName)

=========================================

deletefromdbo.Schedulewhere

RoomID=29andStartTime>'2005-08-08'andEndTime<'2006-09-01'andRemarklike'preset'andUserID=107

and(

(ScheduleID>=3177andScheduleID<=3202)

or(ScheduleID>=3229andScheduleID<=3254)

or(ScheduleID>=3307andScheduleID<=3332)

=========================================

deletetableOne
wheretableOne.id!=(selectmax(id)fromtableOnebwheretableOne.age=b.ageandtableOne.FullName=b.FullName);

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DataClient12/23/20055:03:38PM

selecttop5

DOC_MAIN.CURRENT_VERSION_NOasVersion,DOC_MAIN.MODIFY_DATEasModifyDT,DOC_MAIN.SUMMARYasSummary,DOC_MAIN.AUTHOR_EMPLOYEE_NAMEasAuthorName,DOC_MAIN.TITLEasTitle,DOC_MAIN.DOCUMENT_IDasDocumentID,Attribute.ATTRIBUTE_IDasAttributeId,Attribute.CATALOG_IDasCatalogId,DOC_STATISTIC.VISITE_TIMESasVisiteTimes,DOC_STATISTIC.DOCUMENT_IDasDocumentID2

fromDOC_MAINDOC_MAIN

InnerjoinCATALOG_SELF_ATTRIBUTEAttributeonDOC_MAIN.CATALOG_ID=Attribute.CATALOG_ID

LeftjoinDOC_STATISTICDOC_STATISTIConDOC_MAIN.DOCUMENT_ID=DOC_STATISTIC.DOCUMENT_ID

where(DOC_MAIN.AUTHOR_EMPLOYEE_ID=1)and(Attribute.ATTRIBUTE_ID=11)

orderbyVisiteTimesDESC

====================================

selecttop1DOCUMENT_ID,EMPLOYEE_NAME,COMMENT_DATE,COMMENT_VALUE

fromdbo.DOC_COMMENT

whereDOCUMENT_ID=19andCOMMENT_DATE=(selectmax(COMMENT_DATE)fromDOC_COMMENTwhereDOCUMENT_ID=19)

====================================

selectTITLE,(selecttop1EMPLOYEE_NAME

fromdbo.DOC_COMMENTwhereDOCUMENT_ID=19)Commentman,

(selecttop1COMMENT_DATE

fromdbo.DOC_COMMENTwhereDOCUMENT_ID=19)COMMENT_DATE

fromDOC_MAINwhereDOCUMENT_ID=19

======================================

alterviewExpertDocTopComment

as

selectDOCUMENT_ID,max(ORDER_NUMBER)aslastednum

fromdbo.DOC_COMMENT

groupbyDOCUMENT_ID

go

alterviewExpertDocView

as

selectTITLE,a.AUTHOR_EMPLOYEE_ID,c.EMPLOYEE_NAME,c.COMMENT_DATE

fromdbo.DOC_MAINa

leftjoin

ExpertDocTopCommentb

on

a.DOCUMENT_ID=b.DOCUMENT_ID

innerjoin

DOC_COMMENTc

on

b.DOCUMENT_ID=c.DOCUMENT_IDand

b.lastednum=c.ORDER_NUMBER

======================================

selecta.Id,a.WindowsUsername,

0,1,

a.Email,

caseb.EnFirstNamewhennullthena.Usernameelseb.EnFirstNameend,

caseb.EnLastNamewhennullthena.Usernameelseb.EnLastNameend

fromUUMS_KM.dbo.UUMS_Usera

leftjoin

UUMS_KM.dbo.HR_Employeeb

on

a.HR_EmployeeId=b.id

=====================================

列出上传文档最多的五个人的ID

selectAUTHOR_EMPLOYEE_ID,count(AUTHOR_EMPLOYEE_ID)

fromdbo.DOC_MAIN

groupbyAUTHOR_EMPLOYEE_ID

orderbycount(AUTHOR_EMPLOYEE_ID)

27192

69

1230

1116

列出上传文档最多的五个人的信息

selectdistinctAUTHOR_EMPLOYEE_ID,AUTHOR_EMPLOYEE_NAME

fromdbo.DOC_MAIN

whereAUTHOR_EMPLOYEE_ID

in(

selecttop5AUTHOR_EMPLOYEE_ID

fromdbo.DOC_MAIN

groupbyAUTHOR_EMPLOYEE_ID

orderbycount(AUTHOR_EMPLOYEE_ID)

)

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