May 2018
Intermediate to advanced
576 pages
30h 25m
English
Let's start with a small table, where the answer is fairly obvious:
postgres=# select * from ord;
We assume that the output is as follows:
orderid | customerid | amt ---------+------------+-------- 10677 | 2 | 5.50 5019 | 3 | 277.44 9748 | 3 | 77.17(3 rows)