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51、查找字符串'10,A,B' 中逗号','出现的次数cnt
1、题目描述
查找字符串'10,A,B' 中逗号','出现的次数cnt。
2、代码
SELECT
(length("
10
,A,B")
-
length(
replace
("
10
,A,B",",","")))
/
length(",")
AS
cnt;
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原文地址:https://www.cnblogs.com/guoyu1/p/12720739.html
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