比如有一个字段 题名
1 水尼“十万”个为什么
2 当代工人:市场化的演变与趋势
3 当代画家 (东北卷)
想把这个字段中的标点符号去掉,请教各位大侠SQL 语句该怎么写
------解决方案--------------------
if object_id('t') is not null
drop table t
go
create table t(id int,title nvarchar(100))
insert into t
select 1,'水尼“十万”个为什么' union all
select 2,'当代工人:市场化的演变与趋势' union all
select 3,'当代画家(东北卷)' union all
select 4,'当代画家:“北京篇:;”'
if object_id('symbol') is not null
drop table symbol
go
--建立一个标点符号的表,你可以往里面加各种你想替换的标点符号
create table symbol (n nvarchar(10));
insert into symbol
select '“' union all
select '”' union all
select ':' union all
select ';'
go
if exists(select * from sys.objects where name = 'fn_replace_symbol')
drop function dbo.fn_replace_symbol;
go
create function dbo.fn_replace_symbol(@n nvarchar(1000))
returns nvarchar(1000)
as
begin
declare @i int;
declare @count int;
set @i = 1
set @count = (select count(*) from symbol);
while @i <= @count
begin
;with t
as
(
select n,
row_number() over(order by @@servername) as rownum
from symbol
)
select @n = replace(@n,(select n from t where rownum = @i),'')
set @i = @i + 1
end
return @n
end
go
--替换效果
select * ,
dbo.fn_replace_symbol(title) as 替换完后的字符
from t
/*
id title 替换完后的字符
1 水尼“十万”个为什么 水尼十万个为什么
2 当代工人:市场化的演变与趋势 当代工人市场化的演变与趋势
3 当代画家(东北卷) 当代画家(东北卷)
4 当代画家:“北京篇:;” 当代画家北京篇
*/