I have a requirement where at first I need to remove all space from a string, then put a space after 3 characters started from right.
我有一个要求，首先我需要从字符串中删除所有空格，然后在从右边开始3个字符后放置一个空格。
I have removed the spaces but putting space after certain characters is not happening.
我删除了空格，但在某些字符没有发生后放置空格。
IE:
IE：
AX1098
AX1 098
2 个解决方案
#1
6
SELECT INSERT('AX1098', 4, 0, ' ');
http://dev.mysql.com/doc/refman/5.5/en/string-functions.html#function_insert
http://dev.mysql.com/doc/refman/5.5/en/string-functions.html#function_insert
To update all rows:
要更新所有行：
UPDATE YOURTABLE
SET YOURCOL = INSERT(YOURCOL, 4, 0, ' ');
#2
0
If strings have different length then:
如果字符串长度不同，则：
update t set F = INSERT(F,LENGTH(F)-2,0,' ');
#1
6
SELECT INSERT('AX1098', 4, 0, ' ');
http://dev.mysql.com/doc/refman/5.5/en/string-functions.html#function_insert
http://dev.mysql.com/doc/refman/5.5/en/string-functions.html#function_insert
To update all rows:
要更新所有行：
UPDATE YOURTABLE
SET YOURCOL = INSERT(YOURCOL, 4, 0, ' ');
#2
0
If strings have different length then:
如果字符串长度不同，则：
update t set F = INSERT(F,LENGTH(F)-2,0,' ');