maintenance/mssql/archives/patch-archive-drop-fks.sql

   1 DECLARE @base nvarchar(max),
   2         @SQL nvarchar(max),
   3         @id sysname;--
   4
   5 SET @base = 'ALTER TABLE /*_*/archive DROP CONSTRAINT ';--
   6
   7 SELECT @id = fk.name
   8 FROM sys.foreign_keys fk
   9 JOIN sys.foreign_key_columns fkc
  10         ON fkc.constraint_object_id = fk.object_id
  11 JOIN sys.columns c
  12         ON c.column_id = fkc.parent_column_id
  13         AND c.object_id = fkc.parent_object_id
  14 WHERE
  15         fk.parent_object_id = OBJECT_ID('/*_*/archive')
  16         AND fk.referenced_object_id = OBJECT_ID('/*_*/revision')
  17         AND c.name = 'ar_parent_id';--
  18
  19 SET @SQL = @base + @id;--
  20
  21 EXEC sp_executesql @SQL;--
  22
  23 -- while we're at it, let's fix up the other foreign key constraints on archive
  24 -- as future patches touch constraints on other tables, they'll take the time to update constraint names there as well
  25 SELECT @id = fk.name
  26 FROM sys.foreign_keys fk
  27 JOIN sys.foreign_key_columns fkc
  28         ON fkc.constraint_object_id = fk.object_id
  29 JOIN sys.columns c
  30         ON c.column_id = fkc.parent_column_id
  31         AND c.object_id = fkc.parent_object_id
  32 WHERE
  33         fk.parent_object_id = OBJECT_ID('/*_*/archive')
  34         AND fk.referenced_object_id = OBJECT_ID('/*_*/mwuser')
  35         AND c.name = 'ar_user';--
  36
  37 SET @SQL = @base + @id;--
  38
  39 EXEC sp_executesql @SQL;--
  40
  41 ALTER TABLE /*_*/archive ADD CONSTRAINT ar_user__user_id__fk FOREIGN KEY (ar_user) REFERENCES /*_*/mwuser(user_id);--
  42
  43 SELECT @id = fk.name
  44 FROM sys.foreign_keys fk
  45 JOIN sys.foreign_key_columns fkc
  46         ON fkc.constraint_object_id = fk.object_id
  47 JOIN sys.columns c
  48         ON c.column_id = fkc.parent_column_id
  49         AND c.object_id = fkc.parent_object_id
  50 WHERE
  51         fk.parent_object_id = OBJECT_ID('/*_*/archive')
  52         AND fk.referenced_object_id = OBJECT_ID('/*_*/text')
  53         AND c.name = 'ar_text_id';--
  54
  55 SET @SQL = @base + @id;--
  56
  57 EXEC sp_executesql @SQL;--
  58
  59 ALTER TABLE /*_*/archive ADD CONSTRAINT ar_text_id__old_id__fk FOREIGN KEY (ar_text_id) REFERENCES /*_*/text(old_id) ON DELETE CASCADE;