Here's a variant for FK's and CK's that fully mirrors the Trusted/Untrusted, Enabled/Disabled states (it also generates more than one column at once, suitable for greater automation).
If you're going to set things back "the same as they were", then disabled constraints should stay disabled until your constraint maintenance handles them.
IF EXISTS (SELECT * FROM tempdb.dbo.sysobjects WHERE id = object_id(N'[tempdb].[dbo].[#CheckSQL]'))
DROP TABLE [dbo].[#CheckSQL]
SELECT
s.[name] AS OriginalSchemaName
,t.[name] AS OriginalTableName
,co.[name] AS OrginalConstraintName
,'ALTER TABLE [' + s.[name] + '].[' + t.[name] + '] DROP CONSTRAINT [' + co.[name] + '] ' AS DropCheckSQL
,'ALTER TABLE [' + s.[name] + '].[' + t.[name] + '] WITH '
+ CASE WHEN co.[is_disabled] = 0 AND co.[is_not_trusted] = 0 THEN 'CHECK'
ELSE 'NOCHECK'
END
+ ' ADD CONSTRAINT [' + co.[name] + '] CHECK (' + co.[definition] + ') ' AS CreateCheckSQL
,CASE WHEN co.[is_disabled] = 1 THEN 'ALTER TABLE [' + s.[name] + '].[' + t.[name] + '] NOCHECK CONSTRAINT [' + co.[name] + ']'
ELSE NULL
END AS NocheckCheckSQL
INTO #CheckSQL
FROM sys.check_constraints co
INNER JOIN sys.tables t
ON t.[object_id] = co.[parent_object_id]
INNER JOIN sys.schemas s
ON s.[schema_id] = t.[schema_id]
WHERE t.[type] = 'U'--Ensure we only look at user tables.
ORDER BY t.[name], co.[name]
SELECT * FROM #CheckSQL ORDER BY OriginalTableName, OrginalConstraintName
IF EXISTS (SELECT * FROM tempdb.dbo.sysobjects WHERE id = object_id(N'[tempdb].[dbo].[#ForeignSQL]'))
DROP TABLE [dbo].[#ForeignSQL]
SELECT
s1.[name] AS OriginalSchemaName
,stParent.[name] AS OriginalTableName
,fk.[name] AS OriginalConstraintName
,'ALTER TABLE [' + s1.[name] + '].[' + stParent.[name] + '] DROP CONSTRAINT [' + fk.[name] + '] ' AS DropForeignSQL
,'ALTER TABLE [' + s1.[name] + '].[' + stParent.[name] + '] WITH '
+ CASE WHEN fk.[is_disabled] = 0 AND fk.[is_not_trusted] = 0 THEN 'CHECK'
ELSE 'NOCHECK'
END
+ ' ADD CONSTRAINT [' + fk.[name] + '] FOREIGN KEY (' +
CASE WHEN r.[fkey1] = 0 THEN '' ELSE '[' + c1.[name] + ']' END +
CASE WHEN r.[fkey2] = 0 THEN '' ELSE ', [' + c2.[name] + ']' END +
CASE WHEN r.[fkey3] = 0 THEN '' ELSE ', [' + c3.[name] + ']' END +
CASE WHEN r.[fkey4] = 0 THEN '' ELSE ', [' + c4.[name] + ']' END +
CASE WHEN r.[fkey5] = 0 THEN '' ELSE ', [' + c5.[name] + ']' END +
CASE WHEN r.[fkey6] = 0 THEN '' ELSE ', [' + c6.[name] + ']' END +
CASE WHEN r.[fkey7] = 0 THEN '' ELSE ', [' + c7.[name] + ']' END +
CASE WHEN r.[fkey8] = 0 THEN '' ELSE ', [' + c8.[name] + ']' END +
CASE WHEN r.[fkey9] = 0 THEN '' ELSE ', [' + c9.[name] + ']' END +
CASE WHEN r.[fkey10] = 0 THEN '' ELSE ', [' + c10.[name] + ']' END +
CASE WHEN r.[fkey11] = 0 THEN '' ELSE ', [' + c11.[name] + ']' END +
CASE WHEN r.[fkey12] = 0 THEN '' ELSE ', [' + c12.[name] + ']' END +
CASE WHEN r.[fkey13] = 0 THEN '' ELSE ', [' + c13.[name] + ']' END +
CASE WHEN r.[fkey14] = 0 THEN '' ELSE ', [' + c14.[name] + ']' END +
CASE WHEN r.[fkey15] = 0 THEN '' ELSE ', [' + c15.[name] + ']' END +
CASE WHEN r.[fkey16] = 0 THEN '' ELSE ', [' + c16.[name] + ']' END +
') REFERENCES [' + s2.[name] + '].[' + stReferences.[name] + '](' +
CASE WHEN r.[rkey1] = 0 THEN '' ELSE '[' + c17.[name] + ']' END +
CASE WHEN r.[rkey2] = 0 THEN '' ELSE ', [' + c18.[name] + ']' END +
CASE WHEN r.[rkey3] = 0 THEN '' ELSE ', [' + c19.[name] + ']' END +
CASE WHEN r.[rkey4] = 0 THEN '' ELSE ', [' + c20.[name] + ']' END +
CASE WHEN r.[rkey5] = 0 THEN '' ELSE ', [' + c21.[name] + ']' END +
CASE WHEN r.[rkey6] = 0 THEN '' ELSE ', [' + c22.[name] + ']' END +
CASE WHEN r.[rkey7] = 0 THEN '' ELSE ', [' + c23.[name] + ']' END +
CASE WHEN r.[rkey8] = 0 THEN '' ELSE ', [' + c24.[name] + ']' END +
CASE WHEN r.[rkey9] = 0 THEN '' ELSE ', [' + c25.[name] + ']' END +
CASE WHEN r.[rkey10] = 0 THEN '' ELSE ', [' + c26.[name] + ']' END +
CASE WHEN r.[rkey11] = 0 THEN '' ELSE ', [' + c27.[name] + ']' END +
CASE WHEN r.[rkey12] = 0 THEN '' ELSE ', [' + c28.[name] + ']' END +
CASE WHEN r.[rkey13] = 0 THEN '' ELSE ', [' + c29.[name] + ']' END +
CASE WHEN r.[rkey14] = 0 THEN '' ELSE ', [' + c30.[name] + ']' END +
CASE WHEN r.[rkey15] = 0 THEN '' ELSE ', [' + c31.[name] + ']' END +
CASE WHEN r.[rkey16] = 0 THEN '' ELSE ', [' + c32.[name] + ']' END +
') ' AS CreateForeignSQL
,CASE WHEN fk.[is_disabled] = 1 THEN 'ALTER TABLE [' + s1.[name] + '].[' + stParent.[name] + '] NOCHECK CONSTRAINT [' + fk.[name] + ']'
ELSE NULL
END AS NocheckForeignSQL
INTO #ForeignSQL
FROM sys.foreign_keys fk
INNER JOIN sys.sysreferences r
ON r.[constid] = fk.[object_id]
INNER JOIN sys.tables stParent
ON stParent.[object_id] = r.[fkeyid]
AND stParent.[type] = 'U'--Ensure we only look at user tables.
INNER JOIN sys.tables stReferences
ON stReferences.[object_id] = r.[rkeyid]
INNER JOIN sys.schemas s1
ON s1.[schema_id] = stParent.[schema_id]
INNER JOIN sys.schemas s2
ON s2.[schema_id] = stReferences.[schema_id]
LEFT OUTER JOIN sys.columns c1 ON c1.[object_id] = r.[fkeyid] AND c1.[column_id] = r.[fkey1]
LEFT OUTER JOIN sys.columns c2 ON c2.[object_id] = r.[fkeyid] AND c2.[column_id] = r.[fkey2]
LEFT OUTER JOIN sys.columns c3 ON c3.[object_id] = r.[fkeyid] AND c3.[column_id] = r.[fkey3]
LEFT OUTER JOIN sys.columns c4 ON c4.[object_id] = r.[fkeyid] AND c4.[column_id] = r.[fkey4]
LEFT OUTER JOIN sys.columns c5 ON c5.[object_id] = r.[fkeyid] AND c5.[column_id] = r.[fkey5]
LEFT OUTER JOIN sys.columns c6 ON c6.[object_id] = r.[fkeyid] AND c6.[column_id] = r.[fkey6]
LEFT OUTER JOIN sys.columns c7 ON c7.[object_id] = r.[fkeyid] AND c7.[column_id] = r.[fkey7]
LEFT OUTER JOIN sys.columns c8 ON c8.[object_id] = r.[fkeyid] AND c8.[column_id] = r.[fkey8]
LEFT OUTER JOIN sys.columns c9 ON c9.[object_id] = r.[fkeyid] AND c9.[column_id] = r.[fkey9]
LEFT OUTER JOIN sys.columns c10 ON c10.[object_id] = r.[fkeyid] AND c10.[column_id] = r.[fkey10]
LEFT OUTER JOIN sys.columns c11 ON c11.[object_id] = r.[fkeyid] AND c11.[column_id] = r.[fkey11]
LEFT OUTER JOIN sys.columns c12 ON c12.[object_id] = r.[fkeyid] AND c12.[column_id] = r.[fkey12]
LEFT OUTER JOIN sys.columns c13 ON c13.[object_id] = r.[fkeyid] AND c13.[column_id] = r.[fkey13]
LEFT OUTER JOIN sys.columns c14 ON c14.[object_id] = r.[fkeyid] AND c14.[column_id] = r.[fkey14]
LEFT OUTER JOIN sys.columns c15 ON c15.[object_id] = r.[fkeyid] AND c15.[column_id] = r.[fkey15]
LEFT OUTER JOIN sys.columns c16 ON c16.[object_id] = r.[fkeyid] AND c16.[column_id] = r.[fkey16]
LEFT OUTER JOIN sys.columns c17 ON c17.[object_id] = r.[rkeyid] AND c17.[column_id] = r.[rkey1]
LEFT OUTER JOIN sys.columns c18 ON c18.[object_id] = r.[rkeyid] AND c18.[column_id] = r.[rkey2]
LEFT OUTER JOIN sys.columns c19 ON c19.[object_id] = r.[rkeyid] AND c19.[column_id] = r.[rkey3]
LEFT OUTER JOIN sys.columns c20 ON c20.[object_id] = r.[rkeyid] AND c20.[column_id] = r.[rkey4]
LEFT OUTER JOIN sys.columns c21 ON c21.[object_id] = r.[rkeyid] AND c21.[column_id] = r.[rkey5]
LEFT OUTER JOIN sys.columns c22 ON c22.[object_id] = r.[rkeyid] AND c22.[column_id] = r.[rkey6]
LEFT OUTER JOIN sys.columns c23 ON c23.[object_id] = r.[rkeyid] AND c23.[column_id] = r.[rkey7]
LEFT OUTER JOIN sys.columns c24 ON c24.[object_id] = r.[rkeyid] AND c24.[column_id] = r.[rkey8]
LEFT OUTER JOIN sys.columns c25 ON c25.[object_id] = r.[rkeyid] AND c25.[column_id] = r.[rkey9]
LEFT OUTER JOIN sys.columns c26 ON c26.[object_id] = r.[rkeyid] AND c26.[column_id] = r.[rkey10]
LEFT OUTER JOIN sys.columns c27 ON c27.[object_id] = r.[rkeyid] AND c27.[column_id] = r.[rkey11]
LEFT OUTER JOIN sys.columns c28 ON c28.[object_id] = r.[rkeyid] AND c28.[column_id] = r.[rkey12]
LEFT OUTER JOIN sys.columns c29 ON c29.[object_id] = r.[rkeyid] AND c29.[column_id] = r.[rkey13]
LEFT OUTER JOIN sys.columns c30 ON c30.[object_id] = r.[rkeyid] AND c30.[column_id] = r.[rkey14]
LEFT OUTER JOIN sys.columns c31 ON c31.[object_id] = r.[rkeyid] AND c31.[column_id] = r.[rkey15]
LEFT OUTER JOIN sys.columns c32 ON c32.[object_id] = r.[rkeyid] AND c32.[column_id] = r.[rkey16]
SELECT * FROM #ForeignSQL ORDER BY OriginalTableName, OriginalConstraintName