Web11.3.6 The SET Type. A SET is a string object that can have zero or more values, each of which must be chosen from a list of permitted values specified when the table is created. SET column values that consist of multiple set members are specified with members separated by commas (, ). Web这样就能达到我们预期的效果，问题就解决了！ 注意：mysql字符串函数 find_in_set(str1,str2)函数是返回str2中str1所在的位置索引，str2必须以","分割开。. 总结： like是广泛的模糊匹配，字符串中没有分隔符，Find_IN_SET 是精确匹配，字段值以英文”,”分隔，Find_IN_SET查询的结果要小于like查询的结果。
postgresql - mysql FIND_IN_SET 相当于 postgresql - IT工具网
WebApr 22, 2024 · 皆さんはmysqlのfind_in_set関数をご存じでしょうか？ find_in_set関数はmysqlの文字列関数の1つで、1つのカラムにカンマ区切りで格納されているデータを検索して抽出することができる関数です。 基本的に1つのカラムにカンマ区切りで複数の値を格納するよりは複数のレコードに分けるのがベターか ... WebJun 23, 2016 · Jun 23, 2016 at 14:48. Part of the problem is that find_in_set is a string operator. If the ids you are querying against are not stored as character / varchar in the table, the query does an implicit conversion on the table column. The conversion function disables the use of the index, so you are left with a full table scan. cyber security dlp
FIND_IN_SET() Function in MySQL - GeeksforGeeks
http://n.sfs.tw/content/index/11606 WebThis MySQL tutorial explains how to use the MySQL FIND_IN_SET function with syntax and examples. The MySQL FIND_IN_SET function returns the position of a string in a comma … Web2. Since the answer comes way too late, I was also in the same requirement and found that FIND_IN_SET still works for column as well. Example (1 is the emp_id) SELECT * FROM employee WHERE FIND_IN_SET (1,comma_separated_column_name) Here is my example. The query selects all trips that have 1 in the weekend column. cybersecurity dizzy