Jag har skrivit ett manus i min arbetsmiljö för att göra detta
Detta kommer att skapa följande objekt i den nya tabellen baserat på befintlig tabell
- Standardbegränsning
- PRIMÄR KEY Constraint
- UNIKA begränsning
- FREIGN KEY Constraint
Tabellerna skapade med INTO
satsen kommer inte att skapa ovanstående objekt i den nya tabellen
Skript:
IF Object_id('TEMPDB..#TABLE_LIST') IS NOT NULL
DROP TABLE #TABLE_LIST
CREATE TABLE #TABLE_LIST
(
ORG_TABLE_NAME SYSNAME,
TEMP_TABLE_NAME SYSNAME
)
INSERT INTO #TABLE_LIST
(ORG_TABLE_NAME,
TEMP_TABLE_NAME)
Values('old_table','new_table')
-------------------------------------------------DEFAULT SCRIPT START---------------------------------------------------
DECLARE @DEFAULT_SCRIPT VARCHAR(MAX) =''
SET @DEFAULT_SCRIPT = (SELECT 'ALTER TABLE ['+SCHEMA_NAME(SCHEMA_ID)+'].['+TL.TEMP_TABLE_NAME+']
ADD CONSTRAINT ['+replace(DC.NAME,tl.ORG_TABLE_NAME,tl.TEMP_TABLE_NAME)+'] DEFAULT '+DEFINITION+' FOR ['+C.NAME+']
'
FROM SYS.DEFAULT_CONSTRAINTS DC INNER JOIN SYS.COLUMNS C ON DC.PARENT_OBJECT_ID = C.OBJECT_ID
AND DC.PARENT_COLUMN_ID = C.COLUMN_ID
join #TABLE_LIST TL on OBJECT_ID(TL.ORG_TABLE_NAME) = PARENT_OBJECT_ID)
--print @DEFAULT_SCRIPT
EXEC (@DEFAULT_SCRIPT)
-------------------------------------------------DEFAULT SCRIPT END---------------------------------------------------
-------------------------------------------------PRIMARY SCRIPT START---------------------------------------------------
DECLARE @PRIMARY_SCRIPT VARCHAR(MAX) =''
SET @PRIMARY_SCRIPT = (SELECT 'ALTER TABLE ['+TL.TEMP_TABLE_NAME+']
ADD CONSTRAINT ['+replace(TAB.CONSTRAINT_NAME,tl.ORG_TABLE_NAME,tl.TEMP_TABLE_NAME) +'] PRIMARY KEY ('+LEFT(CS.COL_LIST, LEN(CS.COL_LIST) - 1)+')
'
FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS TAB
JOIN #TABLE_LIST TL on TL.ORG_TABLE_NAME = TAB.TABLE_NAME
CROSS APPLY (SELECT QUOTENAME(COLUMN_NAME) + ','
FROM INFORMATION_SCHEMA.CONSTRAINT_COLUMN_USAGE COL
WHERE COL.CONSTRAINT_NAME = TAB.CONSTRAINT_NAME
AND COL.TABLE_NAME = TAB.TABLE_NAME
FOR XML PATH('')) CS (COL_LIST)
WHERE CONSTRAINT_TYPE = 'PRIMARY KEY'
GROUP BY TAB.TABLE_NAME,
TAB.CONSTRAINT_NAME,
CONSTRAINT_SCHEMA,tl.ORG_TABLE_NAME,tl.TEMP_TABLE_NAME,
LEFT(CS.COL_LIST, LEN(CS.COL_LIST) - 1))
--print @PRIMARY_SCRIPT
EXEC (@PRIMARY_SCRIPT)
-------------------------------------------------PRIMARY SCRIPT END---------------------------------------------------
-------------------------------------------------UNIQUE CONSTARINT SCRIPT START---------------------------------------------------
DECLARE @UNIQUE_SCRIPT VARCHAR(MAX) =''
SET @UNIQUE_SCRIPT = (SELECT 'ALTER TABLE ['+TL.TEMP_TABLE_NAME+']
ADD CONSTRAINT ['+replace(TAB.CONSTRAINT_NAME,tl.ORG_TABLE_NAME,tl.TEMP_TABLE_NAME)+'] UNIQUE ('+LEFT(CS.COL_LIST, LEN(CS.COL_LIST) - 1)+')
'
FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS TAB
JOIN #TABLE_LIST TL on TL.ORG_TABLE_NAME = TAB.TABLE_NAME
CROSS APPLY (SELECT QUOTENAME(COLUMN_NAME) + ','
FROM INFORMATION_SCHEMA.CONSTRAINT_COLUMN_USAGE COL
WHERE COL.CONSTRAINT_NAME = TAB.CONSTRAINT_NAME
AND COL.TABLE_NAME = TAB.TABLE_NAME
FOR XML PATH('')) CS (COL_LIST)
WHERE CONSTRAINT_TYPE = 'UNIQUE'
GROUP BY TAB.TABLE_NAME,
TAB.CONSTRAINT_NAME,
CONSTRAINT_SCHEMA,tl.ORG_TABLE_NAME,tl.TEMP_TABLE_NAME,
LEFT(CS.COL_LIST, LEN(CS.COL_LIST) - 1))
EXEC (@UNIQUE_SCRIPT)
-------------------------------------------------UNIQUE CONSTARINT SCRIPT END---------------------------------------------------
-------------------------------------------------FOREIGN KEY SCRIPT START---------------------------------------------------
DECLARE @FOREIGNKEY_SCRIPT VARCHAR(MAX) = ''
SET @FOREIGNKEY_SCRIPT = (SELECT 'ALTER TABLE ['+TL.TEMP_TABLE_NAME+']
ADD CONSTRAINT '+replace(F.NAME,tl.ORG_TABLE_NAME,tl.TEMP_TABLE_NAME)+' FOREIGN KEY('+QUOTENAME(COL_NAME(FC.PARENT_OBJECT_ID, FC.PARENT_COLUMN_ID))+') REFERENCES '+OBJECT_NAME (F.REFERENCED_OBJECT_ID)+'('+QUOTENAME(COL_NAME(FC.REFERENCED_OBJECT_ID, FC.REFERENCED_COLUMN_ID))+')
'
FROM SYS.FOREIGN_KEYS AS F
INNER JOIN SYS.FOREIGN_KEY_COLUMNS AS FC
ON F.OBJECT_ID = FC.CONSTRAINT_OBJECT_ID
INNER JOIN #TABLE_LIST TL on TL.ORG_TABLE_NAME = OBJECT_NAME(F.PARENT_OBJECT_ID))
EXEC (@FOREIGNKEY_SCRIPT)
Obs!
- Jag hanterade inte
schema
så skriptet anser att det bara finns dbo-schema - Om någon
constraint
behövs inte så kan du kommentera eller ta bort det från skriptet.