What do you infer from the following two lines?

1. host        all        192.168.1.10        255.255.255.255        reject

2. host        all        127.0.0.1             255.255.255.255        trust

Which of the following are not DCL operations?

What do you understand by the following PL/pgSQL declaration?

c_phone customer.contact_no%TYPE;

What is wrong in this query:

Select * from Orders where OrderID=(select OrderID from OrderItems where ItemQty>50)

A wholesale merchant shop needs a report about the sale where total sale of the day is more than $50,000. Which of the following will fulfill this requirement?

Which clause should be used to display the rows of a table in ascending order of a particular column?

What is 'index bloat'?

By default, in what subdirectory of the database data directory are WAL logs contained?

In order to echo all input from script, you use the ________ psql command.

To restore a PostgreSQL backup created with pg_dump, the following may be used:

What does MCV stand for?