oracle 统计某个字符出现的次数
1.情景展示
在oracle当中,如何统计某个字符/指定字符串在字符串中出现的次数?
如:411600,411602,411603,411606,411609,411621,411622,411623,411624,411625,411626,411627,411628,411643,411681。
2.具体分析
通过LENGTHB()+TRANSLATE()或者LENGTHB()+REPLACE()实现。
3.解决方案
方式一:LENGTHB(TRANSLATE(string, character || string, character))
SELECT LENGTHB(TRANSLATE('411600,411602,411603,411606,411609,411621,411622,411623,411624,411625,411626,411627,411628,411643,411681',
',' ||
'411600,411602,411603,411606,411609,411621,411622,411623,411624,411625,411626,411627,411628,411643,411681',
','))
FROM DUAL
TRANSLATE(string, character || string, character):只保留某些特定字符,并将其余字符排除。
方式二:LENGTHB(string)-LENGTHB(REPLACE(string, character, ''))
SELECT LENGTHB('411600,411602,411603,411606,411609,411621,411622,411623,411624,411625,411626,411627,411628,411643,411681') -
LENGTHB(REPLACE('411600,411602,411603,411606,411609,411621,411622,411623,411624,411625,411626,411627,411628,411643,411681,',
',',
''))
FROM DUAL;
REPLACE(string, character, ''):将字符串当中的特定字符替换成空。
写在最后
哪位大佬如若发现文章存在纰漏之处或需要补充更多内容,欢迎留言!!!
相关推荐:
本文来自博客园,作者:Marydon,转载请注明原文链接:https://www.cnblogs.com/Marydon20170307/p/16004913.html