题目: 求组织机构ID在('5dc8de20-9f2f-465e-afcc-f69abecaee50','63549b63-1e0d-4269-98f4-013869d7f211','f7316bf3-38e9-47d4-ab95-8c702b468a2e','61e381d1-c8fc-4276-97e0-3f1b6a0356f5') 中的所有机构. 错误写法: select * from dd_Report where 1=1 and OrganizationID in('5dc8de20-
题目是这样的:sql = "select * from table where id in(3,1,2,5)"; 怎样使得查询的结果按照 3 ,1 , 2, 5来排序: 答案:这两个SQL函数在平时真心没用使用到过啊 find_in_set() 和 substring_index() 用法是这样: select * from table order by substring_index('3,1,2,5',id,1); select * from table
循环方式一: DELIMITER :; drop function if exists test.fn_test:; create function test.fn_test() ) begin ) default 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789'; ) default ''; ; declare len int; do ; ); )); end while; return str; end:; DELIMITER; select fn_test();