--或者加上条件,只处理符合要求的记录:update 表 set 地区=replace(地区,'中国','中华人民共和国') where 地区 like '%中国%'
怎么有错误? argument data type ntext is invalid from argument 1 of replace function 这是怎么回事??
create table test(id int identity(1,1),content text) insert test values('asdfsdfasdfsadfsdjflk大力sdjflkasjdf;lasdjf;lafsd') insert test values('fdsgdsfgdfgsdfghrtjtyjkhkhjkhjljk大力ljk;jk;kl;kl;kl;') gocreate proc 替换 @s_str varchar(100), @d_str varchar(100) as declare @id int declare #tb cursor for select id from test open #tb fetch next from #tb into @id while @@fetch_status=0 begin declare @p varbinary(16),@postion int,@rplen int select @p=textptr(CONTENT),@rplen=len(@s_str),@postion=charindex(@s_str,CONTENT)-1 from test where id=@id while @postion>0 begin updatetext test.CONTENT @p @postion @rplen @d_str select @postion=charindex(@s_str,content)-1 from test where id=@id end fetch next from #tb into @id end close #tb deallocate #tb goexec 替换 '大力','AAAAA'goselect * from testgo drop table test
怎么有错误? argument data type ntext is invalid from argument 1 of replace function 这是怎么回事??你是ntext类型的字符串,不能直接用replace函数替换
ntext类型的字符串不能用上面的处理方法,改用:create table hello(id int identity(1,1),CONTENT text) insert into hello select '<IMG align=baseline alt="" border=0 src="http://localhost/upimg/0335_p1.jpg"><BR>' union all select '<IMG align=baseline alt="" border=0 src="http://localhost/upimg/0335_p1.jpg"><BR>'--定义替换/删除的字符串 declare @s_str varchar(8000),@d_str varchar(8000) select @s_str='中国' --要替换的字符串 ,@d_str='中华人民共和国' --替换成的字符串--定义游标,循环处理数据 declare @id int declare #tb cursor for select id from hello open #tb fetch next from #tb into @id while @@fetch_status=0 begin --字符串替换处理 declare @p varbinary(16),@postion int,@rplen int select @p=textptr(CONTENT),@rplen=len(@s_str),@postion=charindex(@s_str,CONTENT)-1 from hello where id=@id while @postion>0 begin updatetext hello.CONTENT @p @postion @rplen @d_str select @postion=charindex(@s_str,CONTENT)-1 from hello where id=@id end fetch next from #tb into @id end close #tb deallocate #tb--显示结果 select * from hello--删除数据测试环境 drop table hello
where 地区 like '%中国%'
argument data type ntext is invalid from argument 1 of replace function
这是怎么回事??
insert test values('asdfsdfasdfsadfsdjflk大力sdjflkasjdf;lasdjf;lafsd')
insert test values('fdsgdsfgdfgsdfghrtjtyjkhkhjkhjljk大力ljk;jk;kl;kl;kl;')
gocreate proc 替换
@s_str varchar(100),
@d_str varchar(100)
as
declare @id int
declare #tb cursor for select id from test
open #tb
fetch next from #tb into @id
while @@fetch_status=0
begin
declare @p varbinary(16),@postion int,@rplen int
select @p=textptr(CONTENT),@rplen=len(@s_str),@postion=charindex(@s_str,CONTENT)-1 from test where id=@id
while @postion>0
begin
updatetext test.CONTENT @p @postion @rplen @d_str
select @postion=charindex(@s_str,content)-1 from test where id=@id
end
fetch next from #tb into @id
end
close #tb
deallocate #tb
goexec 替换 '大力','AAAAA'goselect * from testgo
drop table test
argument data type ntext is invalid from argument 1 of replace function
这是怎么回事??你是ntext类型的字符串,不能直接用replace函数替换
insert into hello
select '<IMG align=baseline alt="" border=0 src="http://localhost/upimg/0335_p1.jpg"><BR>'
union all select '<IMG align=baseline alt="" border=0 src="http://localhost/upimg/0335_p1.jpg"><BR>'--定义替换/删除的字符串
declare @s_str varchar(8000),@d_str varchar(8000)
select @s_str='中国' --要替换的字符串
,@d_str='中华人民共和国' --替换成的字符串--定义游标,循环处理数据
declare @id int
declare #tb cursor for select id from hello
open #tb
fetch next from #tb into @id
while @@fetch_status=0
begin
--字符串替换处理
declare @p varbinary(16),@postion int,@rplen int
select @p=textptr(CONTENT),@rplen=len(@s_str),@postion=charindex(@s_str,CONTENT)-1 from hello where id=@id
while @postion>0
begin
updatetext hello.CONTENT @p @postion @rplen @d_str
select @postion=charindex(@s_str,CONTENT)-1 from hello where id=@id
end fetch next from #tb into @id
end
close #tb
deallocate #tb--显示结果
select * from hello--删除数据测试环境
drop table hello