sql server 2012 数据库所有表里查找某字符串的方法

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;