如何为数据库中的所有表更新列值的特定字符

Question

I am trying to update a specific characters of column value for all tables in a database in Sql server 2008. I have _WORKGROUPNAME column in my all tables and I want to change some characters in _WORKGROUPNAME in all tables of database.

sample data for _WORKGROUPNAME column

COWAI1
COWAI2
PMWAI1
PMWAI2

need results

COXXX1
COXXX2
PMXXX1
PMXXX2

I want to change WAI to XXX. and I am tying below SQL.

SELECT 'UPDATE ' + T.TABLE_SCHEMA + '.' + T.TABLE_NAME + ' 
SET _WORKGROUPNAME = N''XXX'  
FROM INFORMATION_SCHEMA.TABLES T 
INNER JOIN INFORMATION_SCHEMA.COLUMNS C ON 
T.TABLE_NAME = C.TABLE_NAME AND c.COLUMN_NAME ='_WORKGROUPNAME' 
WHERE T.TABLE_TYPE = 'BASE TABLE' ORDER BY T.TABLE_SCHEMA, T.TABLE_NAME

but the problem is above statement is updating all column value to XXX , but I want to change only WAI to XXX. How to achieve this.

Edit :

In all tables _WORKGROUPNAME name contains data and WAI will comes after 2 characters. and after WAI it is a number that can be any number.

For Example

ASWAI1500
WEWAI900000
ASWAI96
DDWAI11111

Answer 1

只需将AND _WORKGROUPNAME = N'WAI'添加到您的WHERE子句中。

Answer 2

Try this

SELECT 'UPDATE ' + T.TABLE_SCHEMA + '.' + T.TABLE_NAME + ' 
SET _WORKGROUPNAME = replace(_WORKGROUPNAME,''WAI'',''XXX'')'  
FROM INFORMATION_SCHEMA.TABLES T 
INNER JOIN INFORMATION_SCHEMA.COLUMNS C ON 
T.TABLE_NAME = C.TABLE_NAME AND c.COLUMN_NAME ='_WORKGROUPNAME' 
WHERE T.TABLE_TYPE = 'BASE TABLE' ORDER BY T.TABLE_SCHEMA, T.TABLE_NAME