规范化与非规范化之间的区别
更改数据库结构的过程基本上分为两种方式，一种是规范化，另一种是非规范化。
以下是规范化和非规范化之间的重要区别。
Normalizationisusedtoremoveredundantdatafromthedatabaseandtostorenon-redundantandconsistentdataintoit.Normalizationmainlyfocusesonclearingthedatabasefromunuseddataandtoreducethedataredundancyandinconsistency.DuringNormalizationasdataisreducedsoanumberoftablesaredeletedfromthedatabasehencetablesarelesserinnumber.Normalizationusesoptimizedmemoryandhencefasterinperformance.Normalizationmaintainsdataintegrityi.e.anyadditionordeletionofdatafromthetablewillnotcreateanymismatchintherelationshipofthetables.Normalizationisgenerallyusedwherenumberofinsert/update/deleteoperationsareperformedandjoinsofthosetablesarenotexpensive.