select *, length(advName)-length(replace(advName, '详情', '')) from product_advertisement
select *, length(advName)-length(replace(advName, '详情', '')) from product_advertisement
where length(advName)-length(replace(advName, '详情', '')) =6
MYSQL 判断字段中指定字符出现的次数
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2022-03-12
select *, length(advName)-length(replace(advName, '详情', '')) from product_advertisement
select *, length(advName)-length(replace(advName, '详情', '')) from product_advertisement
where length(advName)-length(replace(advName, '详情', '')) =6
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