SQL 如何从 Oracle 中的 varchar 中删除空格

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时间:2020-09-01 01:58:38  来源:igfitidea点击:

How to remove spaces from varchar in Oracle

sqloracle

提问by Denis_Sh

I need to remove all spaces from column values of varchar2 type in an Oracle table. For example, 2012_2 pskshould become 2012_2psk.

我需要从 Oracle 表中 varchar2 类型的列值中删除所有空格。例如,2012_2 psk应该变成2012_2psk.

I've tried to use REPLACE(column_name, ' ', '')but it doesn't work.
Can anyone help me?

我试过了,use REPLACE(column_name, ' ', '')但没有用。
谁能帮我?

回答by Denis_Sh

I've found the solution. There are not white spaces, there are some other symbols that show themselves as blank spaces. So next code is working fine:

我找到了解决方案。没有空格,还有一些其他符号将自己显示为空格。所以下一个代码工作正常:

SELECT regexp_replace(docnum, '\W','') FROM tmp_uploadtable;

回答by TechDo

Please try:

请尝试:

regexp_replace(column_name, '[[:space:]]*','')

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