1.What is the MySQL FIND_IN_SET() function? The MySQL FIND_IN_SET() function is used to determine the position of a substring within a comma-separated list of substrings. It is useful for searching and filtering
ref: 在利用key字段所表示的索引完成查询时所有的列或某常量值; rows:MySQL估计为找所有的目标行而需要读取的行数; Extra:额外信息 Using index:MySQL将会使用覆盖索引,以避免访问表; Using where:MySQL服务器将在存储引擎检索后,再进行一次过滤; Using temporary:MySQL对结果排序时会使用临时表; Using filesort:...
MySQL FIND_IN_SET Function - Learn how to use the MySQL FIND_IN_SET function to find a string within a comma-separated list. Understand its syntax and usage with examples.
We use the WHERE clause to choose the correct survey and the LIKE operator to select only rows where the column favorite_activities contains the value reading. This will eliminate those students who didn’t ... Get MySQL in a Nutshell, 2nd Edition now with the O’Reilly learning platform. ...
但是它也不是用like能解决的，使用like可能查到我们不想要的记录，它比like更精准，这时候mysql的FIND_...
I'm using MySQL in combination with Tomcat. the MySQL driver that I'm using using is my-sql-connector-java-5.1.12 (latest as far as I know). My application queries the database to create an intermediate result. The queries are relatively simple (basic select, with where clause that does...
This tutorial explains MySQL FIND_IN_SET function which finds the position of a string in a comma-separated list of strings with examples.