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SQL Server 2005 Pivot on Unknown Number of Columns

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试):问题: Iamworkingwithasetofdatathatlookssomethinglikethefollowing. StudentName|AssignmentName|Grade ---------------------------......

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What is the use of the square brackets [] in sql s

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试):问题: I'venoticedthatVisualStudio2008isplacingsquarebracketsaroundcolumnnamesinsql.Dothebracketsofferanyadvantage?WhenIhand......

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What is the correct SQL type to store a .Net Times

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试):问题: Iamtryingtostorea.NetTimeSpaninSQLserver2008R2. EFCodeFirstseemstobesuggestingitshouldbestoredasaTime(7)inSQL. ......

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Removing leading zeroes from a field in a SQL stat

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试):问题: IamworkingonaSQLquerythatreadsfromaSQLServerdatabasetoproduceanextractfile.Oneoftherequirementstoremovetheleadingz......

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Floor a date in SQL server

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试):问题: InSQLServer,howdoI"floor"aDATETIMEtothesecond/minute/hour/day/year? Let'ssaythatIhaveadateof2008-09-1712:56:53.430,then......

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Preferred Method of Storing Passwords In Database

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试):问题: Whatisyourpreferredmethod/datatypeforstoringpasswordsinadatabase(preferablySQLServer2005).ThewayIhavebeendoingitinseve......

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Datatype for storing ip address in SQL Server

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试):问题: WhatdatatypeshouldIchooseforstoringanIPAddressinaSQLServer? Byselectingtherightdatatypewoulditbeeasyenoughtofilterb......

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Which are more performant, CTE or temporary tables

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试):问题: Whicharemoreperformant,CTEorTemporaryTables? 回答1: I'dsaytheyaredifferentconceptsbutnottoodifferenttosay"chalkandch......

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Copy tables from one database to another in SQL Se

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试):问题: Ihaveadatabasecalledfooandadatabasecalledbar.IhaveatableinfoocalledtblFoobarthatIwanttomove(dataandall)todatabase......

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How to select all records from one table that do n

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试):问题: table1(id,name) table2(id,name) Query: SELECTname FROMtable2 --thatarenotintable1already 回答1: SELECTt1.name ......

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Difference between left join and right join in SQL

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试):问题: IknowaboutjoinsinSQLServer. Forexample.TherearetwotablesTable1,Table2. Theirtablestructuresarethefollowing. createtabl......

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get a comma delimited string from rows [duplicate]

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试):问题: Thisquestionalreadyhasananswerhere: Howtoconcatenatetextfrommultiplerowsintoasingletextstring......

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How Do I Insert A Byte[] Into an SQL Server VARBIN

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试):问题: Ihaveabytearrayhighlightedbelow,howdoIinsertitintoaSQLServerdatabaseVarbinarycolumn? byte[]arraytoinsert=newbyte[10]{0......

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SQL Server Linked Server Example Query

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试):问题: WhileinManagementStudio,Iamtryingtorunaquery/doajoinbetweentwolinkedservers. Isthisacorrectsyntaxusinglinkeddbservers......

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Remove Identity from a column in a table

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试):问题: Wehavea5GBtable(nearly500millionrows)andwewanttoremovetheidentitypropertyononeofthecolumn,butwhenwetrytodothisth......

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How can I convert bigint (UNIX timestamp) to datet

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试):问题: HowcanIconvertUNIXtimestamp(bigint)toDateTimeinSQLServer? 回答1: try: CREATEFUNCTIONdbo.fn_ConvertToDateTime(@DatetimeBIG......

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SQL: Select columns with NULL values only

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试):问题: HowdoIselectallthecolumnsinatablethatonlycontainNULLvaluesforalltherows?I'musingMSSQLServer2005.I'mtryingtofind......

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Get first day of week in SQL Server

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试):问题: Iamtryingtogrouprecordsbyweek,storingtheaggregateddateasthefirstdayoftheweek.However,thestandardtechniqueIuseforrou......

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Foreign Key to non-primary key

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试):问题: Ihaveatablewhichholdsdata,andoneofthoserowsneedstoexistinanothertable.So,Iwantaforeignkeytomaintainreferentialinte......

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How to use a variable for the database name in T-S

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试):问题: Iusethedatabasenameinseveralplacesinmyscript,andIwanttobeabletoquicklychangeit,soI'mlookingforsomethinglikethis: ......