如何使用T-SQL在数据库中的所有文本字段中搜索某个子字符串

我有一个巨大的模式，有数百个表和数千列。我知道一个特定的IP地址存储在这个数据库的几个地方，但我不确定它存储在哪些表或列中。基本上，我正在尝试查找存储在DB中的IP地址，以便在所有这些位置将其更新为新值

这是我第一次破解T-SQL语句，为数据库中包含子字符串10.15.13的每个文本列打印表、列名和值

现在，这有点起作用了。问题是，当我在Management Studio中执行它时，对sp_executesql的调用实际上会从每个不返回任何内容的查询中返回所有空结果，即该列没有包含该子字符串的任何记录，它将结果窗口填充到其最大值，然后我实际上看不到是否打印了任何内容

是否有更好的方法编写此查询？或者我可以以不同的方式运行它，以便它只显示这个子字符串所在的表和列

DECLARE
    @SchemaName VARCHAR(50),
    @TableName VARCHAR(50),
    @ColumnName VARCHAR(50);
BEGIN
    DECLARE textColumns CURSOR FOR
    SELECT s.Name, tab.Name, c.Name
    FROM Sys.Columns c, Sys.Types t, Sys.Tables tab, Sys.Schemas s
    WHERE s.schema_id = tab.schema_id AND tab.object_id = c.object_id AND c.user_type_id = t.user_type_id
    AND t.Name in ('TEXT','NTEXT','VARCHAR','CHAR','NVARCHAR','NCHAR');

    OPEN textColumns

    FETCH NEXT FROM textColumns
    INTO @SchemaName, @TableName, @ColumnName

    WHILE @@FETCH_STATUS = 0
    BEGIN
        DECLARE @sql NVARCHAR(MAX),
                @ParamDef NVARCHAR(MAX),
                @result NVARCHAR(MAX);              
        SET @sql = N'SELECT ' + @ColumnName + ' FROM ' + @SchemaName + '.' + @TableName + ' WHERE ' + @ColumnName + ' LIKE ''%10.15.13%''';
        SET @ParamDef = N'@resultOut NVARCHAR(MAX) OUTPUT';

        EXEC sp_executesql @sql, @ParamDef, @resultOut = @result OUTPUT;

        PRINT 'Column = ' + @TableName + '.' + @ColumnName + ', Value = ' + @result;
        FETCH NEXT FROM textColumns
        INTO @SchemaName, @TableName, @ColumnName       
    END
    CLOSE textColumns;
    DEALLOCATE textColumns;
END

我希望看到类似这样的结果，其中显示了找到子字符串的表/列，以及该列中的完整值

Column = SomeTable.SomeTextColumn, Value = 'https://10.15.13.210/foo'
Column = SomeTable.SomeOtherColumn, Value = '10.15.13.210'

---

等等。

你很接近了。将您的示例与此示例进行比较：

上面的链接用于搜索单个表，但这里有另一个包含所有表的链接：

编辑：万一链接坏了，下面是该链接的解决方案

CREATE PROC SearchAllTables
(
    @SearchStr nvarchar(100)
)
AS
BEGIN

    -- 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
    -- Tested on: SQL Server 7.0 and SQL Server 2000
    -- Date modified: 28th July 2002 22:50 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')
                    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


EXEC SearchAllTables '<yourSubstringHere>'

注:

---

正如代码片段中的注释所示，它是使用较旧版本的SQL Server进行测试的。这在SQL Server 2012上可能不起作用。

试试看，它不会给您超过32的错误限制

alter 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')
                    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

---

希望它有帮助

选择的答案很好，但我发现反复使用时结果是错误的，因此我添加了一些清理，以使其能够重新运行并获得准确的结果：

IF EXISTS (SELECT * FROM sys.objects WHERE type = 'P' AND name = 'SearchAllTables')
    DROP PROC SearchAllTables
GO

CREATE PROC SearchAllTables
(
    @SearchStr nvarchar(100)
)
AS
BEGIN

    -- 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
    -- Slightly modified by: Natalie Ford, 6/10/15
    -- Site: http://vyaskn.tripod.com
    -- Tested on: SQL Server 7.0 and SQL Server 2000
    -- Date modified: 28th July 2002 22:50 GMT

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

    SET NOCOUNT ON

    TRUNCATE Table #Results

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

    DROP TABLE #Results
END

---

你的结束。将你的与这个例子进行比较：太棒了，谢谢！实际上，我没有从链接中使用该解决方案，因为它是用于一次搜索单个表的，但它有另一个链接，指向用于搜索数据库中所有表的完整解决方案；正是我需要的。请将此作为答案发布，我会将其标记为正确！我已经包括了答案以及你为后代所指的链接。谢谢-1我在SQL Server 2012 Msg 217中得到以下错误，级别16，状态1，过程SearchAllTables，第54行最大存储过程、函数、触发器或视图嵌套级别超出限制32.codemonkeh，确保在每次执行之后或执行之前添加drop storedprocedure和temp table语句。在SQL Server 2012 Msg 217中获取以下错误，级别16，状态1，过程SearchAllTables，第54行最大存储过程、函数、触发器或视图嵌套级别超出限制32。相同的error@PiotrWolkowski我收到了相同的错误1我如何在没有列出的db错误的情况下重用它2我如何在两个数据库中指定一些列tables@aggie也许这是一个问题，要么是答案的所有者杰里米，要么是问题的所有者吉姆，因为我只编辑了这个线程。在SQL 2014上测试成功