SQL Server 对比数据库差异语句

在SQL Server中，可以使用以下语句来对比数据库之间的差异：

1. 对比表结构差异：

   -- 对比两个数据库中的表差异SELECTt1.name AS TableName,t1.object_id AS ObjectId,CASE WHEN t2.name IS NULL THEN 'Only in Database 1' ELSE 'Different' END AS [Status]FROMDatabase1.sys.tables t1LEFT JOIN Database2.sys.tables t2 ON t1.name = t2.nameUNION ALLSELECTt2.name AS TableName,t2.object_id AS ObjectId,'Only in Database 2' AS [Status]FROMDatabase2.sys.tables t2LEFT JOIN Database1.sys.tables t1 ON t2.name = t1.nameWHEREt1.name IS NULL;

2. 对比表数据差异：

   -- 对比两个表的数据差异SELECT *FROM Database1.dbo.TableNameEXCEPTSELECT *FROM Database2.dbo.TableName;

3. 对比存储过程差异：

   -- 对比两个数据库中的存储过程差异SELECTp1.name AS ProcedureName,p1.object_id AS ObjectId,CASE WHEN p2.name IS NULL THEN 'Only in Database 1' ELSE 'Different' END AS [Status]FROMDatabase1.sys.procedures p1LEFT JOIN Database2.sys.procedures p2 ON p1.name = p2.nameUNION ALLSELECTp2.name AS ProcedureName,p2.object_id AS ObjectId,'Only in Database 2' AS [Status]FROMDatabase2.sys.procedures p2LEFT JOIN Database1.sys.procedures p1 ON p2.name = p1.nameWHEREp1.name IS NULL;

   这些示例语句可以根据实际情况进行修改，将数据库名、表名、存储过程名等替换为相应的对象名称。注意，这些语句仅比较了对象的差异，并不考虑详细的定义和属性差异。如果需要更详细的比较和分析，可以使用专门的工具如Redgate SQL Compare