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
http://www.nowcoder.com/practice/e3870bd5d6744109a902db43c105bd50
把逗号去掉前后到长度差就是逗号到数目
select id, (length(string)-length(replace(string, ',',''))) as cnt
from strings;
2021-12-30 00:52 The University of Adelaide 供应链专员
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