在所有表、所有列中搜索特定值SQL Server

You could query the sys.tables database view to get out the names of the tables, and then use this query to build yourself another query to do the update on the back of that. For instance:

select 'select * from '+name from sys.tables

will give you a script that will run a select * against all the tables in the system catalog, you could alter the string in the select clause to do your update, as long as you know the column name is the same on all the tables you wish to update, so your script would look something like:

select 'update '+name+' set comments = ''(*)''+comments where comments like ''%comment to be updated%'' ' from sys.tables

You could also then predicate on the tables query to only include tables that have a name in a certain format, or are in a subset you want to create the update script for.

I've just updated my blog post to correct the error in the script that you were having Jeff, you can see the updated script here: Search all fields in SQL Server Database

As requested, here's the script in case you want it but I'd recommend reviewing the blog post as I do update it from time to time

DECLARE @SearchStr nvarchar(100)
SET @SearchStr = '## YOUR STRING HERE ##'
 
 
-- Copyright © 2002 Narayana Vyas Kondreddi. All rights reserved.
-- Purpose: To search all columns of all tables for a given search string
-- Written by: Narayana Vyas Kondreddi
-- Site: http://vyaskn.tripod.com
-- Updated and tested by Tim Gaunt
-- http://www.thesitedoctor.co.uk
-- http://blogs.thesitedoctor.co.uk/tim/2010/02/19/Search+Every+Table+And+Field+In+A+SQL+Server+Database+Updated.aspx
-- Tested on: SQL Server 7.0, SQL Server 2000, SQL Server 2005 and SQL Server 2010
-- Date modified: 03rd March 2011 19:00 GMT
CREATE TABLE #Results (ColumnName nvarchar(370), ColumnValue nvarchar(3630))
 
SET NOCOUNT ON
 
DECLARE @TableName nvarchar(256), @ColumnName nvarchar(128), @SearchStr2 nvarchar(110)
SET  @TableName = ''
SET @SearchStr2 = QUOTENAME('%' + @SearchStr + '%','''')
 
WHILE @TableName IS NOT NULL
 
BEGIN
SET @ColumnName = ''
SET @TableName =
(
SELECT MIN(QUOTENAME(TABLE_SCHEMA) + '.' + QUOTENAME(TABLE_NAME))
FROM     INFORMATION_SCHEMA.TABLES
WHERE         TABLE_TYPE = 'BASE TABLE'
AND    QUOTENAME(TABLE_SCHEMA) + '.' + QUOTENAME(TABLE_NAME) > @TableName
AND    OBJECTPROPERTY(
OBJECT_ID(
QUOTENAME(TABLE_SCHEMA) + '.' + QUOTENAME(TABLE_NAME)
 ), 'IsMSShipped'
   ) = 0
)
 
WHILE (@TableName IS NOT NULL) AND (@ColumnName IS NOT NULL)
 
BEGIN
SET @ColumnName =
(
SELECT MIN(QUOTENAME(COLUMN_NAME))
FROM     INFORMATION_SCHEMA.COLUMNS
WHERE         TABLE_SCHEMA    = PARSENAME(@TableName, 2)
AND    TABLE_NAME    = PARSENAME(@TableName, 1)
AND    DATA_TYPE IN ('char', 'varchar', 'nchar', 'nvarchar', 'int', 'decimal')
AND    QUOTENAME(COLUMN_NAME) > @ColumnName
)
 
IF @ColumnName IS NOT NULL
 
BEGIN
INSERT INTO #Results
EXEC
(
'SELECT ''' + @TableName + '.' + @ColumnName + ''', LEFT(' + @ColumnName + ', 3630) FROM ' + @TableName + ' (NOLOCK) ' +
' WHERE ' + @ColumnName + ' LIKE ' + @SearchStr2
)
END
END   
END
 
SELECT ColumnName, ColumnValue FROM #Results
 
DROP TABLE #Results

The below Query works but very slow... copied from vyaskn.tripod.com

Declare @SearchStr nvarchar(100)


SET  @SearchStr='Search String' BEGIN


CREATE TABLE #Results (ColumnName nvarchar(370), ColumnValue nvarchar(3630))


SET NOCOUNT ON


DECLARE @TableName nvarchar(256), @ColumnName nvarchar(128),
@SearchStr2 nvarchar(110)  SET  @TableName = ''    SET @SearchStr2 =
QUOTENAME('%' + @SearchStr + '%','''')


WHILE @TableName IS NOT NULL
BEGIN
SET @ColumnName = ''
SET @TableName =  (
SELECT MIN(QUOTENAME(TABLE_SCHEMA) + '.' +
QUOTENAME(TABLE_NAME)) FROM INFORMATION_SCHEMA.TABLES
WHERE
TABLE_TYPE = 'BASE TABLE'
AND QUOTENAME(TABLE_SCHEMA) + '.' + QUOTENAME(TABLE_NAME) > @TableName
AND OBJECTPROPERTY(
OBJECT_ID(QUOTENAME(TABLE_SCHEMA) + '.' + QUOTENAME(TABLE_NAME)),
'IsMSShipped') = 0)


WHILE (@TableName IS NOT NULL) AND (@ColumnName IS NOT NULL)
BEGIN
SET @ColumnName = (
SELECT MIN(QUOTENAME(COLUMN_NAME))
FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_SCHEMA = PARSENAME(@TableName, 2)
AND TABLE_NAME = PARSENAME(@TableName, 1)
AND DATA_TYPE IN ('char', 'varchar', 'nchar', 'nvarchar')
AND QUOTENAME(COLUMN_NAME) > @ColumnName)
IF @ColumnName IS NOT NULL
BEGIN
INSERT INTO #Results
EXEC
(
'SELECT ''' + @TableName + '.' + @ColumnName + ''', LEFT(' + @ColumnName +
', 3630) FROM ' + @TableName + ' (NOLOCK) ' +
' WHERE ' + @ColumnName + ' LIKE ' + @SearchStr2
)
END
END
END


SELECT ColumnName, ColumnValue FROM #Results END

I published one here: FullParam SQL Blog

/* Reto Egeter, fullparam.wordpress.com */


DECLARE @SearchStrTableName nvarchar(255), @SearchStrColumnName nvarchar(255), @SearchStrColumnValue nvarchar(255), @SearchStrInXML bit, @FullRowResult bit, @FullRowResultRows int
SET @SearchStrColumnValue = '%searchthis%' /* use LIKE syntax */
SET @FullRowResult = 1
SET @FullRowResultRows = 3
SET @SearchStrTableName = NULL /* NULL for all tables, uses LIKE syntax */
SET @SearchStrColumnName = NULL /* NULL for all columns, uses LIKE syntax */
SET @SearchStrInXML = 0 /* Searching XML data may be slow */


IF OBJECT_ID('tempdb..#Results') IS NOT NULL DROP TABLE #Results
CREATE TABLE #Results (TableName nvarchar(128), ColumnName nvarchar(128), ColumnValue nvarchar(max),ColumnType nvarchar(20))


SET NOCOUNT ON


DECLARE @TableName nvarchar(256) = '',@ColumnName nvarchar(128),@ColumnType nvarchar(20), @QuotedSearchStrColumnValue nvarchar(110), @QuotedSearchStrColumnName nvarchar(110)
SET @QuotedSearchStrColumnValue = QUOTENAME(@SearchStrColumnValue,'''')
DECLARE @ColumnNameTable TABLE (COLUMN_NAME nvarchar(128),DATA_TYPE nvarchar(20))


WHILE @TableName IS NOT NULL
BEGIN
SET @TableName =
(
SELECT MIN(QUOTENAME(TABLE_SCHEMA) + '.' + QUOTENAME(TABLE_NAME))
FROM    INFORMATION_SCHEMA.TABLES
WHERE       TABLE_TYPE = 'BASE TABLE'
AND TABLE_NAME LIKE COALESCE(@SearchStrTableName,TABLE_NAME)
AND QUOTENAME(TABLE_SCHEMA) + '.' + QUOTENAME(TABLE_NAME) > @TableName
AND OBJECTPROPERTY(OBJECT_ID(QUOTENAME(TABLE_SCHEMA) + '.' + QUOTENAME(TABLE_NAME)), 'IsMSShipped') = 0
)
IF @TableName IS NOT NULL
BEGIN
DECLARE @sql VARCHAR(MAX)
SET @sql = 'SELECT QUOTENAME(COLUMN_NAME),DATA_TYPE
FROM    INFORMATION_SCHEMA.COLUMNS
WHERE       TABLE_SCHEMA    = PARSENAME(''' + @TableName + ''', 2)
AND TABLE_NAME  = PARSENAME(''' + @TableName + ''', 1)
AND DATA_TYPE IN (' + CASE WHEN ISNUMERIC(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(@SearchStrColumnValue,'%',''),'_',''),'[',''),']',''),'-','')) = 1 THEN '''tinyint'',''int'',''smallint'',''bigint'',''numeric'',''decimal'',''smallmoney'',''money'',' ELSE '' END + '''char'',''varchar'',''nchar'',''nvarchar'',''timestamp'',''uniqueidentifier''' + CASE @SearchStrInXML WHEN 1 THEN ',''xml''' ELSE '' END + ')
AND COLUMN_NAME LIKE COALESCE(' + CASE WHEN @SearchStrColumnName IS NULL THEN 'NULL' ELSE '''' + @SearchStrColumnName + '''' END  + ',COLUMN_NAME)'
INSERT INTO @ColumnNameTable
EXEC (@sql)
WHILE EXISTS (SELECT TOP 1 COLUMN_NAME FROM @ColumnNameTable)
BEGIN
PRINT @ColumnName
SELECT TOP 1 @ColumnName = COLUMN_NAME,@ColumnType = DATA_TYPE FROM @ColumnNameTable
SET @sql = 'SELECT ''' + @TableName + ''',''' + @ColumnName + ''',' + CASE @ColumnType WHEN 'xml' THEN 'LEFT(CAST(' + @ColumnName + ' AS nvarchar(MAX)), 4096),'''
WHEN 'timestamp' THEN 'master.dbo.fn_varbintohexstr('+ @ColumnName + '),'''
ELSE 'LEFT(' + @ColumnName + ', 4096),''' END + @ColumnType + '''
FROM ' + @TableName + ' (NOLOCK) ' +
' WHERE ' + CASE @ColumnType WHEN 'xml' THEN 'CAST(' + @ColumnName + ' AS nvarchar(MAX))'
WHEN 'timestamp' THEN 'master.dbo.fn_varbintohexstr('+ @ColumnName + ')'
ELSE @ColumnName END + ' LIKE ' + @QuotedSearchStrColumnValue
INSERT INTO #Results
EXEC(@sql)
IF @@ROWCOUNT > 0 IF @FullRowResult = 1
BEGIN
SET @sql = 'SELECT TOP ' + CAST(@FullRowResultRows AS VARCHAR(3)) + ' ''' + @TableName + ''' AS [TableFound],''' + @ColumnName + ''' AS [ColumnFound],''FullRow>'' AS [FullRow>],*' +
' FROM ' + @TableName + ' (NOLOCK) ' +
' WHERE ' + CASE @ColumnType WHEN 'xml' THEN 'CAST(' + @ColumnName + ' AS nvarchar(MAX))'
WHEN 'timestamp' THEN 'master.dbo.fn_varbintohexstr('+ @ColumnName + ')'
ELSE @ColumnName END + ' LIKE ' + @QuotedSearchStrColumnValue
EXEC(@sql)
END
DELETE FROM @ColumnNameTable WHERE COLUMN_NAME = @ColumnName
END
END
END
SET NOCOUNT OFF


SELECT TableName, ColumnName, ColumnValue, ColumnType, COUNT(*) AS Count FROM #Results
GROUP BY TableName, ColumnName, ColumnValue, ColumnType