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;
