The Queries in this page solved at the library database. It is a sample database generated by randomly records. You can download it from the link. You will see more than 500 examples in the future. You can filter from the search panel above by selecting sql statements. I hope you will like it

SQL Group By Order By Examples

1-) List the name and surname of the students and the number of books they read sorted by BookCount.

Solution 1)

Select name,surname,count(*) BookCount 
from students
join borrows on students.studentId = borrows.studentId 
group by students.studentId,name,surname
order by BookCount desc

Solution 2)

Select name,surname,count(*) BookCount 
from students,borrows 
where students.studentId = borrows.studentId 
group by students.studentId,name,surname
order by BookCount desc

ETİKETLER

Select - Join - Where - Group By - Order By - Aggragate - Alias - Çoklu Tablo -