id column in the subquery where clause exists in both tables, the id it is using is from the wrong table
Table tblStudents columns: id, name, gender, SchoolName, SchoolId.
need some explanation about MySQL where … in … subquery
firstpic
SUBSTRING_INDEX Start position
I am trying to use SUBSTRING_INDEX to select a string between 2 values, I need the second delimiter to be the first occurrence after the first delimiter because there are a random number of occurrence of the delimiter