View the execution time and SP2-0027 errors of an SQL statement in the oracle database

Go to sqlplus
SQL> set timing on
SQL>
SQL> select count (*) from comm_human_role;
COUNT (*)
----------
866
Elapsed: 00:00:00. 05
The preceding digital outputs are: Hours: Minutes: Seconds. Milliseconds.
It takes 0.05 seconds to execute, which is equivalent to 50 milliseconds.
If the time is as follows: 00: 03: 235.78
The total time is 235.78 seconds, less than 4 minutes, so it is 3 minutes (235.78 seconds is about 3 minutes 55.78 seconds)
# Set screen row width
SQL> set linesize 190
# Set sqlplus to print the execution plan and statistics
SQL> set autotrace on
# Set sqlplus printing execution time
SQL> set timing on
If the following error occurs in sqlplus:
SP2-0027: Input is too long (& gt; 2499 characters)-line ignored
It indicates that the SQL statement contains more than 2499 characters.
Solution:
Add "enter" in an SQL statement ",
Make sure that each line does not exceed 2499 characters, and re-execute the SQL statement.