MulaiMulai sekarang secara gratis

Row filtering with HAVING

In some cases, using HAVING, instead of WHERE, as a filter condition will produce the same results. If filtering individual or ungrouped rows then it is more efficient to use WHERE.

In this exercise, you want to know the number of players from Latin American countries playing in the 2017-2018 NBA season.

Latihan ini adalah bagian dari kursus

Improving Query Performance in SQL Server

Lihat Kursus

Latihan interaktif praktis

Ubah teori menjadi tindakan dengan salah satu latihan interaktif kami.

Mulai berolahraga