有没有办法在SQL Server数据库的所有表中搜索字符串?
我想搜索字符串，比如john。结果应该显示包含john的表和它们各自的行。
当前回答
在这篇文章中已经提到过几次的答案，我已经采用了一点，因为我也只需要在一个表中搜索:
(并且使表名的输入更简单一点)
ALTER PROC dbo.db_compare_SearchAllTables_sp
(
@SearchStr nvarchar(100),
@TableName nvarchar(256) = ''
)
AS
BEGIN
if PARSENAME(@TableName, 2) is null
set @TableName = 'dbo.' + QUOTENAME(@TableName, '"')
declare @results TABLE(ColumnName nvarchar(370), ColumnValue nvarchar(3630))
SET NOCOUNT ON
DECLARE @ColumnName nvarchar(128) = '', @SearchStr2 nvarchar(110)
SET @SearchStr2 = QUOTENAME('%' + @SearchStr + '%','''')
IF @TableName <> ''
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 + ' WITH (NOLOCK) ' +
' WHERE ' + @ColumnName + ' LIKE ' + @SearchStr2
)
END
END
ELSE
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 + ' WITH (NOLOCK) ' +
' WHERE ' + @ColumnName + ' LIKE ' + @SearchStr2
)
END
END
END
SELECT ColumnName, ColumnValue FROM @results
END
其他回答
不需要嵌套循环(遍历表的外部循环和遍历所有表列的内部循环)。可以从INFORMATION_SCHEMA中检索所有(或任意选择/筛选的)表-列组合。COLUMNS和在一个循环中简单地遍历(搜索)所有它们:
DECLARE @search VARCHAR(100), @table SYSNAME, @column SYSNAME
DECLARE curTabCol CURSOR FOR
SELECT c.TABLE_SCHEMA + '.' + c.TABLE_NAME, c.COLUMN_NAME
FROM INFORMATION_SCHEMA.COLUMNS c
JOIN INFORMATION_SCHEMA.TABLES t
ON t.TABLE_NAME=c.TABLE_NAME AND t.TABLE_TYPE='BASE TABLE' -- avoid views
WHERE c.DATA_TYPE IN ('varchar','nvarchar') -- searching only in these column types
--AND c.COLUMN_NAME IN ('NAME','DESCRIPTION') -- searching only in these column names
SET @search='john'
OPEN curTabCol
FETCH NEXT FROM curTabCol INTO @table, @column
WHILE (@@FETCH_STATUS = 0)
BEGIN
EXECUTE('IF EXISTS
(SELECT * FROM ' + @table + ' WHERE ' + @column + ' = ''' + @search + ''')
PRINT ''' + @table + '.' + @column + '''')
FETCH NEXT FROM curTabCol INTO @table, @column
END
CLOSE curTabCol
DEALLOCATE curTabCol
有点晚了，但希望有用。
为什么不尝试一些可以集成到SSMS中的第三方工具呢?
我使用过ApexSQL Search(100%免费)，在模式和数据搜索方面都取得了很好的成功，还有SSMS工具包也有这个功能(SQL 2012不是免费的，但相当实惠)。
上面的存储过程真的很棒;只是在我看来这样更方便。此外，如果你想搜索datetime列或GUID列等，它将需要一些轻微的修改…
已经有很多可行的答案了。我只是想加上一个我想到的，有很多可选功能。
--=======================================================================
-- MSSQL Unified Search
-- Minimum compatibility level = 130 (SQL Server 2016)
-- NOTE: The minimum compatibility level is required by the built-in STRING_SPLIT() function.
-- However, you can create the STRING_SPLIT() function at the bottom of this script for
-- lower versions of MSSQL Server.
--
-- Usage:
-- Set the parameters below and execute this script.
--
/************************ Enter Parameters Here ************************/
/**/
/**/ DECLARE @SearchString VARCHAR(1000) = 'string to search for'; -- Accepts SQL wilcards
/**/
/**/ DECLARE @IncludeUserTables BIT = 1;
/**/ DECLARE @IncludeViews BIT = 0;
/**/ DECLARE @IncludeStoredProcedures BIT = 0;
/**/ DECLARE @IncludeFunctions BIT = 0;
/**/ DECLARE @IncludeTriggers BIT = 0;
/**/
/**/ DECLARE @DebugMode BIT = 0;
/**/ DECLARE @ExcludeColumnTypes NVARCHAR(500) = 'text, ntext, char, nchar, timestamp, bigint, tinyint, smallint, bit, date, time, smalldatetime, datetime, datetime2, real, money, float, decimal, binary, varbinary, image'; -- Comma delimited list
/**/
/***********************************************************************/
SET NOCOUNT ON;
SET @SearchString = QUOTENAME(@SearchString,'''');
DECLARE @Results TABLE ([ObjectType] NVARCHAR(200), [ObjectName] NVARCHAR(200), [ColumnName] NVARCHAR(400), [Value] NVARCHAR(MAX), [SelectStatement] NVARCHAR(1000));
DECLARE @ExcludeColTypes TABLE (system_type_id INT);
INSERT INTO @ExcludeColTypes ([system_type_id])
SELECT [system_type_id]
FROM sys.types WHERE
[name] IN (
SELECT LTRIM(RTRIM([value])) FROM STRING_SPLIT(@ExcludeColumnTypes,',')
);
DECLARE @ObjectType NVARCHAR(200);
DECLARE @ObjectName NVARCHAR(200);
DECLARE @Value NVARCHAR(MAX);
DECLARE @SelectStatement NVARCHAR(1000);
DECLARE @Query NVARCHAR(4000);
/********************* Table Objects *********************/
IF (@IncludeUserTables = 1)
BEGIN
DECLARE @TableObjectId INT = (SELECT MIN([object_id]) FROM sys.tables);
DECLARE @ColumnId INT;
WHILE @TableObjectId IS NOT NULL
BEGIN
SELECT @ObjectType = 'USER TABLE';
SELECT @ObjectName = '[' + SCHEMA_NAME([schema_id]) + '].[' + OBJECT_NAME(@TableObjectId) + ']' FROM sys.tables WHERE [object_id] = @TableObjectId;
SET @ColumnId = (SELECT MIN([column_id]) FROM sys.columns WHERE [system_type_id] NOT IN (SELECT [system_type_id] FROM @ExcludeColTypes) AND [object_id] = @TableObjectId);
WHILE @ColumnId IS NOT NULL
BEGIN
SELECT @Value = '[' + [name] +']' FROM sys.columns WHERE [object_id] = @TableObjectId AND column_id = @ColumnId;
SET @SelectStatement = 'SELECT * FROM ' + @ObjectName + ' WHERE CAST(' + @Value + ' AS NVARCHAR(4000)) LIKE ' + @SearchString + ';';
SET @Query = 'SELECT '
+ QUOTENAME(@ObjectType, '''')
+ ', ' + QUOTENAME(@ObjectName, '''')
+ ', ' + QUOTENAME(@Value, '''')
+ ', ' + @Value
+ ', ''' + REPLACE(@SelectStatement,'''','''''') + ''''
+ ' FROM ' + @ObjectName
+ ' WHERE CAST(' + @Value + ' AS NVARCHAR(4000)) LIKE ' + @SearchString + ';';
IF @DebugMode = 0
BEGIN
INSERT INTO @Results EXEC(@Query);
END;
ELSE
BEGIN
PRINT 'Select Statement: ' + @SelectStatement;
PRINT 'Query: ' + @Query;
END;
SET @ColumnId = (SELECT MIN([column_id]) FROM sys.columns WHERE [system_type_id] NOT IN (SELECT [system_type_id] FROM @ExcludeColTypes) AND [object_id] = @TableObjectId AND [column_id] > @ColumnId);
END;
SET @TableObjectId = (SELECT MIN([object_id]) FROM sys.tables WHERE [object_id] > @TableObjectId);
END;
END;
/********************* Objects Other than Tables *********************/
SET @Query = 'SELECT ' +
'ObjectType = CASE ' +
'WHEN b.[type] = ''V'' THEN ''VIEW'' ' +
'WHEN b.[type] = ''P'' THEN ''STORED PROCEDURE'' ' +
'WHEN b.[type] = ''FN'' THEN ''SCALAR-VALUED FUNCTION'' ' +
'WHEN b.[type] = ''IF'' THEN ''TABLE-VALUED FUNCTION'' ' +
'WHEN b.[type] = ''TR'' THEN ''TRIGGER'' ' +
'END ' +
',[ObjectName] = ''['' + SCHEMA_NAME(b.[schema_id]) + ''].['' + OBJECT_NAME(a.[object_id]) + '']'' ' +
',[ColumnName] = NULL ' +
',[Value] = a.[definition] ' +
',[SelectStatement] = ''SP_HELPTEXT '' + QUOTENAME(''['' + SCHEMA_NAME(b.[schema_id]) + ''].['' + OBJECT_NAME(a.[object_id]) + '']'','''''''') + '';'' ' +
'FROM [sys].[sql_modules] a ' +
'JOIN [sys].[objects] b ON a.[object_id] = b.[object_id] ' +
'WHERE ' +
'( ' +
' a.[definition] LIKE ' + @SearchString +
') ' +
'AND ' +
'( ' +
' ( ' +
CAST(@IncludeViews AS VARCHAR(1)) + ' = 1 ' +
' AND ' +
' b.[type] IN (''V'') ' +
' ) ' +
' OR ' +
' ( ' +
CAST(@IncludeStoredProcedures AS VARCHAR(1)) + ' = 1 ' +
' AND ' +
' b.[type] IN (''P'') ' +
' ) ' +
' OR ' +
' ( ' +
CAST(@IncludeFunctions AS VARCHAR(1)) + ' = 1 ' +
' AND ' +
' b.[type] IN (''FN'',''IF'') ' +
' ) ' +
' OR ' +
' ( ' +
CAST(@IncludeTriggers AS VARCHAR(1)) + ' = 1 ' +
' AND ' +
' b.[type] IN (''TR'') ' +
' ) ' +
'); ';
IF @DebugMode = 0
BEGIN
INSERT INTO @Results EXEC(@Query);
END;
ELSE
BEGIN
PRINT 'Select Statement: ' + @SelectStatement;
PRINT 'Query: ' + @Query;
END;
IF @DebugMode = 0
BEGIN
SELECT
[ObjectType]
,[ObjectName]
,[ColumnName]
,[Value]
,[Count] = CASE
WHEN [ObjectType] IN ('USER TABLE') THEN COUNT(1)
ELSE NULL
END
,[SelectStatement]
FROM @Results
GROUP BY [ObjectType], [ObjectName], [ColumnName], [Value], [SelectStatement]
ORDER BY [Value];
END;
/********************** STRING_SPLIT() FUNCTION **********************
CREATE FUNCTION STRING_SPLIT (
@Expression nvarchar(4000)
,@Delimiter nvarchar(100)
)
RETURNS @Ret TABLE ([value] NVARCHAR(4000))
AS
BEGIN
DECLARE @Start INT = 0, @End INT, @Length INT;
SELECT @End = CHARINDEX(@Delimiter,@Expression), @Length = @End - @Start;
IF @End <= 0
BEGIN
INSERT INTO @Ret ([value]) VALUES (@Expression);
END
ELSE
BEGIN
WHILE @Length >= 0
BEGIN
INSERT INTO @Ret ([value])
SELECT ltrim(rtrim(substring(@Expression,@Start,@Length)));
SELECT @Start = @End + LEN(@Delimiter)
SELECT @End = CHARINDEX(@Delimiter,@Expression,@Start)
IF @End < 1
SELECT @End = LEN(@Expression) + 1;
SELECT @Length = @End - @Start;
END;
END;
RETURN;
END;
*********************************************************************/
改进来自@Brandon的惊人答案，我使用类型转换向ntext和xml添加了类型:
BEGIN TRAN
DECLARE @SearchStr nvarchar(100) = 'SEARCH_TEXT'
DECLARE @Results TABLE (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', 'ntext', 'xml')
AND QUOTENAME(COLUMN_NAME) > @ColumnName
)
IF @ColumnName IS NOT NULL
BEGIN
INSERT INTO @Results
EXEC
(
'SELECT ''' + @TableName + '.' + @ColumnName + ''', LEFT((cast(' + @ColumnName + ' as nvarchar(max))), 3630)
FROM ' + @TableName + ' (NOLOCK) ' +
' WHERE (cast(' + @ColumnName + ' as nvarchar(max))) LIKE ' + @SearchStr2
)
END
END
END
SELECT ColumnName, ColumnValue FROM @Results
ROLLBACK
更新TechDo对SQL server 2012的答案。你需要更改:'FROM ' + @TableName + ' (NOLOCK)+ @TableName + 'WITH (NOLOCK)' +
在这个版本的SQL Server中不支持已弃用的功能“不带WITH的表提示”。
下面是更新后的完整存储过程:
CREATE PROC SearchAllTables
(
@SearchStr nvarchar(100)
)
AS
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', '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 + 'WITH (NOLOCK) ' +
' WHERE ' + @ColumnName + ' LIKE ' + @SearchStr2
)
END
END
END
SELECT ColumnName, ColumnValue FROM #Results
END
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