题解 | 查找字符串中逗号出现的次数
查找字符串中逗号出现的次数
https://www.nowcoder.com/practice/e3870bd5d6744109a902db43c105bd50
select id,char_length(string)-char_length(replace(string,',','')) as cnt from strings
查找字符串中逗号出现的次数
https://www.nowcoder.com/practice/e3870bd5d6744109a902db43c105bd50
select id,char_length(string)-char_length(replace(string,',','')) as cnt from strings
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