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1、SQLserverdatabasemanagementandmaintenanceToconnectSQLServerdatabaseFirstweintroducethebasicknowledgeofthedatabase,beregardedasthewarm-upexercisethatstudydatabaseweavedistancefront!1.warm-upexerciseNeedingfirstavowalisrelationdatabasethatdatabaseknowledgethatwehereintroduceallpoint.Th
2、eso-calledrelationdatabaseistomeandataasthattheformgather,passingtoestablishsimpleformanakindofdatabaseforofrelationtodefiningconstruction.Iignorethewatchathowsavingwayinphysicsinthedocumentindatabaseis,itcanseetomakeanalineforwithrow,withelectronicsformissimilarwiththerow.Inrelation
3、database,thelinewerecalledtherecord,buttherowtheniscalledwordsegment.Thisforminsideeachanallinformationsforisarecord,itincludingparticularcustomer,buteachrecordthenincludedthesametypewiththewordsegmentofthequantity:Customer'snumber,nameetc.Formislogicsetthatakindofrelatedinformationt
4、hatpressalineofarrangingwithrow,similarinsingleforminwork.Eachrowofthewordadatabaseforminsidecallsawordsegment.Watchisfromeverykindofwordadefinitionofitscontainmentof,eachwordadatafordescribingitsimplying.Whilecreatingtosetupadatabase,thebeardassignforeachwordsegmentathepiecebelongst
5、othesexwiththeotheraccordingtothetype,biggestlength.Thewordsegmentcanincludeeverykindofwordsign,arithmeticfigureevensketch.Aninformationofrelevantcustomerdepositsinthelineoftheform,iscalledrecord.Byanylarge,arbitrarilytworecordsfordatabaseformtocreatesetupcan'tbesame.Keybeacertainwor
6、dsegment(orseveralwordssegment)oftheforminside,it()forfastinspectbutdriveindex.Thekeycanbeunique,andalsocanthentherightandwrongisunique,beingdecidedbyit()whetheradmissionrepetition.Uniquekeycanspecifyformainkey,usingeachonethatcometouniquemarkingform.Thenormturnsthedatabasedesignofmi
7、ssionbemethodthatthedataofbuildup,butthedataofbuildup,shouldcandissolveotioserepetition,andforhavethenecessaryinformationofferingtochecktoseekthepathquickly.Forattainingthiskindoftargetbutseparateinformationtotheprocessgonetoineverykindofindependentform,becalledthenormturn.Itiscompli
8、catedprocess