【转发】在SQL Server中通过字段值查询存储该字段的表

最新推荐文章于 2022-10-25 16:35:59 发布

原创最新推荐文章于 2022-10-25 16:35:59 发布 · 81 阅读

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#mysql #sqlserver #sql #delphi #python

这是一个SQL脚本，由Narayana Vyas Kondreddi编写，用于在SQL Server 7.0和2000上搜索所有基表的所有列，以查找包含特定字符串的数据。脚本首先创建一个临时表#Results来存储结果，然后通过循环遍历表名和列名，使用LIKE运算符和NOLOCK提示进行搜索。

-- 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('%张洪君MVP%','''')

    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

http://www.cnblogs.com/danzhang/ ALM MVP 张洪君