當(dāng)數(shù)據(jù)庫做的太龐大的時(shí)候，難免會出現(xiàn)忘記哪個值會存入哪個表的情況，于是在網(wǎng)上找到的如下解決辦法。
通過做一個存儲過程，只需要傳入一個想要查找的值，即可查詢出這個值所在的表和字段名。前提是要將這個存儲過程放在所查詢的數(shù)據(jù)庫。
CREATE PROCEDURE [dbo].[SP_FindValueInDB]
(
? ? @value VARCHAR(1024)
)? ? ? ?
AS
BEGIN
? ? -- SET NOCOUNT ON added to prevent extra result sets from
? ? -- interfering with SELECT statements.
SET NOCOUNT ON;
DECLARE @sql VARCHAR(1024)
DECLARE @table VARCHAR(64)
DECLARE @column VARCHAR(64)
CREATE TABLE #t (
? ? tablename VARCHAR(64),
? ? columnname VARCHAR(64)
)
DECLARE TABLES CURSOR
FOR
? ? SELECT o.name, c.name
? ? FROM syscolumns c
? ? INNER JOIN sysobjects o ON c.id = o.id
? ? WHERE o.type = 'U' AND c.xtype IN (167, 175, 231, 239)
? ? ORDER BY o.name, c.name
OPEN TABLES
FETCH NEXT FROM TABLES
INTO @table, @column
WHILE @@FETCH_STATUS = 0
BEGIN
? ? SET @sql = 'IF EXISTS(SELECT NULL FROM [' + @table + '] '
? ? SET @sql = @sql + 'WHERE RTRIM(LTRIM([' + @column + '])) LIKE ''%' + @value + '%'') '
? ? SET @sql = @sql + 'INSERT INTO #t VALUES (''' + @table + ''', '''
? ? SET @sql = @sql + @column + ''')'
? ? EXEC(@sql)
? ? FETCH NEXT FROM TABLES
? ? INTO @table, @column
END
CLOSE TABLES
DEALLOCATE TABLES
SELECT *
FROM #t
DROP TABLE #t
End
例如，要查詢‘a(chǎn)dmin’，新建一個查詢輸入
EXEC SP_FindValueInDB 'admin'
會返回相應(yīng)記錄，Tablename顯示被查詢數(shù)據(jù)所在表，Columnname顯示被查詢數(shù)據(jù)所在列。
