Firebird: Query execution time in iSQL

Question

I would like to get query execution time in iSQL.

For instance :

SELECT * FROM students;

How do i get query execution time ?

Answer 1

Use SET STATS:

SQL> SET STATS;
SQL> SELECT * FROM RDB$DATABASE;
... query output removed ....

Current memory = 34490656
Delta memory = 105360
Max memory = 34612544
Elapsed time= 0.59 sec
Buffers = 2048
Reads = 17
Writes 0
Fetches = 270
SQL>