Pour accélérer le vidage vers un système de contrôle de code source, vous pouvez voir quels objets ont changé depuis la dernière fois en utilisant les informations de version dans sysobjects.
Configuration: créez une table dans chaque base de données que vous souhaitez vérifier de manière incrémentielle pour conserver les informations de version de la dernière fois que vous l'avez vérifiée (vide lors de la première exécution). Effacez ce tableau si vous souhaitez analyser à nouveau l'ensemble de votre structure de données.
IF ISNULL(OBJECT_ID('last_run_sysversions'), 0) <> 0 DROP TABLE last_run_sysversions
CREATE TABLE last_run_sysversions (
name varchar(128),
id int, base_schema_ver int,
schema_ver int,
type char(2)
)
Mode de fonctionnement normal: vous pouvez prendre les résultats de ce sql, générer des scripts sql uniquement pour ceux qui vous intéressent et les placer dans un contrôle de source de votre choix.
IF ISNULL(OBJECT_ID('tempdb.dbo.#tmp'), 0) <> 0 DROP TABLE #tmp
CREATE TABLE #tmp (
name varchar(128),
id int, base_schema_ver int,
schema_ver int,
type char(2)
)
SET NOCOUNT ON
-- Insert the values from the end of the last run into #tmp
INSERT #tmp (name, id, base_schema_ver, schema_ver, type)
SELECT name, id, base_schema_ver, schema_ver, type FROM last_run_sysversions
DELETE last_run_sysversions
INSERT last_run_sysversions (name, id, base_schema_ver, schema_ver, type)
SELECT name, id, base_schema_ver, schema_ver, type FROM sysobjects
-- This next bit lists all differences to scripts.
SET NOCOUNT OFF
--Renamed.
SELECT 'renamed' AS ChangeType, t.name, o.name AS extra_info, 1 AS Priority
FROM sysobjects o INNER JOIN #tmp t ON o.id = t.id
WHERE o.name <> t.name /*COLLATE*/
AND o.type IN ('TR', 'P' ,'U' ,'V')
UNION
--Changed (using alter)
SELECT 'changed' AS ChangeType, o.name /*COLLATE*/,
'altered' AS extra_info, 2 AS Priority
FROM sysobjects o INNER JOIN #tmp t ON o.id = t.id
WHERE (
o.base_schema_ver <> t.base_schema_ver
OR o.schema_ver <> t.schema_ver
)
AND o.type IN ('TR', 'P' ,'U' ,'V')
AND o.name NOT IN ( SELECT oi.name
FROM sysobjects oi INNER JOIN #tmp ti ON oi.id = ti.id
WHERE oi.name <> ti.name /*COLLATE*/
AND oi.type IN ('TR', 'P' ,'U' ,'V'))
UNION
--Changed (actually dropped and recreated [but not renamed])
SELECT 'changed' AS ChangeType, t.name, 'dropped' AS extra_info, 2 AS Priority
FROM #tmp t
WHERE t.name IN ( SELECT ti.name /*COLLATE*/ FROM #tmp ti
WHERE NOT EXISTS (SELECT * FROM sysobjects oi
WHERE oi.id = ti.id))
AND t.name IN ( SELECT oi.name /*COLLATE*/ FROM sysobjects oi
WHERE NOT EXISTS (SELECT * FROM #tmp ti
WHERE oi.id = ti.id)
AND oi.type IN ('TR', 'P' ,'U' ,'V'))
UNION
--Deleted
SELECT 'deleted' AS ChangeType, t.name, '' AS extra_info, 0 AS Priority
FROM #tmp t
WHERE NOT EXISTS (SELECT * FROM sysobjects o
WHERE o.id = t.id)
AND t.name NOT IN ( SELECT oi.name /*COLLATE*/ FROM sysobjects oi
WHERE NOT EXISTS (SELECT * FROM #tmp ti
WHERE oi.id = ti.id)
AND oi.type IN ('TR', 'P' ,'U' ,'V'))
UNION
--Added
SELECT 'added' AS ChangeType, o.name /*COLLATE*/, '' AS extra_info, 4 AS Priority
FROM sysobjects o
WHERE NOT EXISTS (SELECT * FROM #tmp t
WHERE o.id = t.id)
AND o.type IN ('TR', 'P' ,'U' ,'V')
AND o.name NOT IN ( SELECT ti.name /*COLLATE*/ FROM #tmp ti
WHERE NOT EXISTS (SELECT * FROM sysobjects oi
WHERE oi.id = ti.id))
ORDER BY Priority ASC
Remarque: Si vous utilisez un classement non standard dans l'une de vos bases de données, vous devrez le remplacer /* COLLATE */par le classement de votre base de données. c'est à direCOLLATE Latin1_General_CI_AI