复制代码 代码如下:

USE [数据库名称];

 --1.定义需要查找的关键字。在搜索中，使用模糊搜索：LIKE \'%@key_find%\'
 DECLARE @key_find NVARCHAR(MAX) = \'123\';--假设是找字符串\"123\"

 --2.用游标Cursor_Table，遍历所有表
 DECLARE Cursor_Table CURSOR FOR
     SELECT name from sysobjects WHERE xtype = \'u\' AND name <> \'dtproperties\';
 OPEN Cursor_Table;
 DECLARE @tableName NVARCHAR(MAX);
 FETCH NEXT from Cursor_Table INTO @tableName;
 WHILE @@fetch_status = 0
 BEGIN
     DECLARE @tempSQLText NVARCHAR(MAX) = \'\';

     --3.在表中，用游标columnCursor，遍历所有字段。注意，只遍历字符串类型的字段（列）
     DECLARE columnCursor CURSOR FOR
         SELECT Name FROM SysColumns WHERE ID = Object_Id( @tableName ) and
                                                                             (
                                                                                 xtype = 35 or --text
                                                                                 xtype = 99 or --ntext
                                                                                 xtype = 167 or --varchar
                                                                                 xtype = 175 or --char
                                                                                 xtype = 231 or --nvarchar
                                                                                 xtype = 239 or --nchar
                                                                                 xtype = 241 --xml
                                                                             )
     OPEN columnCursor;
     DECLARE @columnName NVARCHAR(MAX);
     FETCH NEXT from columnCursor INTO @columnName;
     WHILE @@fetch_status = 0
     BEGIN

         --4.在表的字段中，对每一行进行模糊搜索，并输出找到的信息。
         DECLARE @DynamicSQLText NVARCHAR(MAX) = \'IF ( EXISTS ( SELECT * FROM [\' + @tableName + \'] WHERE [\' + @columnName + \'] LIKE \'\'%\' + @key_find + \'%\'\' ) ) BEGIN DECLARE @CurrentTableCount Bigint = ( SELECT COUNT(*) From [\' + @tableName + \'] ); PRINT \'\'Find : Table [\' + @tableName + \'], Column [\' + @columnName + \'], Row Count:\'\' + CAST( @CurrentTableCount AS NVARCHAR(MAX) ) + \'\'.\'\';  END\';
         EXEC( @DynamicSQLText );
         FETCH NEXT from columnCursor INTO @columnName
     END
     exec(@tempSQLText);
     CLOSE columnCursor;
     DEALLOCATE columnCursor;
     FETCH NEXT from Cursor_Table INTO @tableName;
 END
 CLOSE Cursor_Table;
 DEALLOCATE Cursor_Table;