Which of the following holds true when creating the function for a PL/pgSQL call handler, and installing PL/pgSQL in the default directory?

Which of the following is not a single value function?

What is the correct order of clauses in the select statement?

1        select

2        order by

3        where

4        having

5        group by

In which of the following ways can a value in an array column be modified?

Which of the following statements is not correct about creating a new operator?

How can data be accessed by users who do not have direct access to the tables?

Which statement is true about PostgreSQL data types?

True or False? Dynamic Tracing is enabled by default at compile time.

This is used to determine how text is stored and sorted within PostgreSQL?

Advisory locks are allocated out of a shared memory pool whose size is defined by the configuration variables....

When looking at 'ps' output on a unix system, you see the following: postgres 1016 0.1 2.4 6532 3080 pts/1 SN 13:19 0:00 postgres: tgl regression [local] idle in transaction What does 'idle in transaction' mean?