Sql Server 使用正则表达式

Posted 2021-03-23 派大星帅帅

 

create function dbo.RegexMatch (    
 
@pattern varchar(2000),    
 
@matchstring varchar(8000)
 
)
 
returns int
 
as
 
begin   
 
    declare @objRegexExp int   
 
    declare @strErrorMessage varchar(255)    
 
    declare @hr int,@match bit   
 
    exec @hr= sp_OACreate ‘VBScript.RegExp‘, @objRegexExp out   
 
    if @hr = 0        
 
        exec @hr= sp_OASetProperty @objRegexExp, ‘Pattern‘, @pattern    
 
    if @hr = 0        
 
        exec @hr= sp_OASetProperty @objRegexExp, ‘IgnoreCase‘, 1    
 
    if @hr = 0        
 
        exec @hr= sp_OAMethod @objRegexExp, ‘Test‘, @match OUT, @matchstring    
 
    if @hr <>0    
 
    begin       
 
        return null   
 
    end   
 
    exec sp_OADestroy @objRegexExp    
 
    return @match
 
end

调用

SELECT * FROM table where dbo.RegexMatch(‘正则表达式‘,字段名)=0

如果执行报错 执行这个语句

--开启 Ole Automation Procedures
sp_configure ‘show advanced options‘, 1;
GO
RECONFIGURE;
GO
sp_configure ‘Ole Automation Procedures‘, 1;
GO
RECONFIGURE;
GO
EXEC sp_configure ‘Ole Automation Procedures‘;
GO

--关闭 Ole Automation Procedures
sp_configure ‘show advanced options‘, 1;
GO
RECONFIGURE;
GO
sp_configure ‘Ole Automation Procedures‘, 1;
GO
RECONFIGURE;
GO
EXEC sp_configure ‘Ole Automation Procedures‘;
GO

--关闭高级选项
sp_configure ‘show advanced options‘, 0;
GO
RECONFIGURE;
GO