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[英]oracle sql TO_CHAR function is adding a trailing blank in some case
[英]SQL , INGRES : replace by blank after some char
days: char (31)
period : char (31)
days : 1234567891234567891234567891234
period: AAAAAAAAAABBBBBBBBBBCCCCCCCCCCD
我想在第20个字符后用*
代替所有内容
days : 12345678912345678912***********
period:AAAAAAAAAABBBBBBBBBB***********
任何想法?
您可以尝试类似:
select
rpad(substr(days,1,20),length(days),'*'),
rpad(substr(period,1,20),length(period),'*')
from table
在SQL Server中:
DECLARE @TABLE TABLE (DAYS VARCHAR(MAX), PERIOD VARCHAR(MAX))
insert into @table values
('1234567891234567891234567891234', 'AAAAAAAAAABBBBBBBBBBCCCCCCCCCCD')
SELECT SUBSTRING(DAYS,1,20)+REPLICATE('*',LEN(DAYS)- 20),
SUBSTRING(PERIOD ,1,20)+REPLICATE('*',LEN(PERIOD)- 20) FROM @TABLE
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