Had a quick job the other day restoring a pair of databases under different names which is all straight forward enough, but each database in the pair uses quite a few synonyms to access objects in the other database. So with the pair of databases restored under new names, a quick script was needed to drop and recreate all the synonyms so that they point to the correct database name. This is easily achieved with a cursor and a little bit of dynamic SQL.
DECLARE @ObjectName sysname, @Definition VARCHAR(MAX), @Schema VARCHAR(50) DECLARE @SQL VARCHAR(MAX) DECLARE loccur CURSOR LOCAL STATIC FORWARDONLY READONLY FOR SELECT name, SCHEMANAME(schemaid), baseobjectname FROM sys.synonyms OPEN loccur FETCH NEXT FROM loccur INTO @ObjectName, @Schema, @Definition WHILE @@FETCH_STATUS = 0 BEGIN PRINT 'Converting: Synonym, ' + @ObjectName SET @SQL = 'DROP SYNONYM ' + QUOTENAME(@Schema) + '.' + QUOTENAME(@ObjectName) EXEC(@SQL) SET @SQL = 'CREATE SYNONYM ' + QUOTENAME(@Schema) + '.' + QUOTENAME(@ObjectName) + ' FOR ' + REPLACE(@Definition, '[OldDbName].', '[NewDbName].') EXEC(@SQL) FETCH NEXT FROM loccur INTO @ObjectName, @Schema, @Definition END CLOSE loccur DEALLOCATE loccur
Enjoy!
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