摘要： 1.'dbo.CustomersDim')ISNOTNULL2.DROPTABLEdbo.CustomersDim;3.GO4.5.CREATETABLEdbo.CustomersDim6.(7.KeyColINTNOTNULLIDENTITYPRIMARYKEY,8.CustomerIDNCHAR(5)NOTNULL,9.CompanyNameNVARCHAR(40)NOTNULL,10./*...othercolumns...*/11.);12.13.--InsertNewCustomersandGettheirSurrogateKeys14.DECLARE@NewCust 阅读全文