这种格式的数据,我只想要将百分数转换为小数有办法嘛各位大神路过帮忙看看

SQL Ccc 发布于 2022-12-27 09:22

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Z4u3z1Lv6专家互助
发布于2022-12-27 09:28（编辑于 2022-12-27 10:29）

SqlServer？oracle？mysql？

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SELECT (CASE WHEN MBLL LIKE '%S%%' ESCAPE 'S' THEN CONVERT(NVARCHAR(100),REPLACE(MBLL,'%','')/100) ELSE MBLL END ) [NEW_] FROM TABLE

---------------

with tablea as (

select '80%' [mbll]

union all

select '76.5%' [mbll]

union all

select '80' [mbll]

union all

select '100' [mbll]

union all

select '>50' [mbll]

union all

select '>80%' [mbll]

union all

select '>0.580%' [mbll]

union all

select '>=0.580%' [mbll]

union all

select '<0.5' [mbll]

)

select *,(CASE WHEN MBLL LIKE '%S%%' ESCAPE 'S' THEN (CASE WHEN PATINDEX('%[0-9]%',mbll)=1 THEN CONVERT(NVARCHAR(100),CONVERT(decimal(20,6),REPLACE(mbll,'%',''))/100) ELSE CONCAT(SUBSTRING(mbll,1,PATINDEX('%[0-9]%',mbll)-1) ,CONVERT(NVARCHAR(100),CONVERT(decimal(20,6),REPLACE(SUBSTRING(mbll,PATINDEX('%[0-9]%',mbll),LEN(mbll)),'%',''))/100)) END) ELSE CONVERT(NVARCHAR(100),MBLL) END ) [NEW]

from tablea