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摘要： T-SQL笔记5：键、代理键、约束 本章摘要 1:Keys 1.1：Creating aTable with aPrimary Key 1.2：Adding aPrimary Key Constraint to an Existing Table 1.3：Creating aTable with aForeign Key Reference 1.4：Adding aForeign Key t... 阅读全文

摘要： T-SQL笔记4：表本章摘要1:CREATE2:SQL Server 2005 Data Types3:Adding aColumn to an Existing Table4:Changing a Column Definition5:Creating aComputed Column6:Dropping aTable Column1:CREATEThe simplified syntax is as follows:CREATE TABLE [ database_name . [ schema_name ] . | schema_name . ] table_name ( column_n 阅读全文