我数据库中的大多数数据都存储有html实体,例如ä
而不是ä
。但有些数据存储为纯文本(ä
)。
现在我想找到ä
或ä的所有记录集。如何在不使用
SELECT id FROM table WHERE content LIKE'%ä
%'或内容LIKE'%ä
%'
答案 0 :(得分:1)
您可以在替换要在同一查询中搜索的值时搜索表格:
SELECT * FROM table WHERE REPLACE(content,'ä','ä') LIKE '%ä%'
当然,你必须为所有的Umlaute做替换。
答案 1 :(得分:0)
最佳答案是浏览现有数据并将其中所有实例更改为一致。
创建UDF
Create Function dbo.ReplaceHtmlEntities(@arg NVARCHAR(MAX) collate Latin1_General_Bin)
returns NVARCHAR(MAX)
as
begin
if @arg is null return @arg
if not @arg like '%&%;%' return @arg
-- Collation matters here obviously!!
-- Auto generated lines
-- These lines should be generated from a list of entities and Unicode values
-- In practice you can limit this to the ones you actually have a problem with
set @arg = replace(@arg, 'Ä' collate Latin1_General_BIN, char(0xUUUU))
set @arg = replace(@arg, 'ä' collate Latin1_General_BIN, char(0xUUUU))
set @arg = replace(@arg, 'Ö' collate Latin1_General_BIN, char(0xUUUU))
set @arg = replace(@arg, 'ö' collate Latin1_General_BIN, char(0xUUUU))
-- For speed you can group them more common first, and short-circuit where possible
if not @arg like '%&%;%' return @arg
-- a lot more lines....
return @arg
end
然后你只需要经过你所有的桌子!!!!