sql server 2012 數據庫一切內外查找某字符串的辦法。本站提示廣大學習愛好者:(sql server 2012 數據庫一切內外查找某字符串的辦法)文章只能為提供參考,不一定能成為您想要的結果。以下是sql server 2012 數據庫一切內外查找某字符串的辦法正文
USE [數據庫稱號];
--1.界說須要查找的症結字。在搜刮中,應用隱約搜刮:LIKE '%@key_find%'
DECLARE @key_find NVARCHAR(MAX) = '123';--假定是找字符串"123"
--2.用游標Cursor_Table,遍歷一切表
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,用游標columnCursor,遍歷一切字段。留意,只遍歷字符串類型的字段(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,對每行停止隱約搜刮,並輸入找到的信息。
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;