Ctrl-C Fails to Interrupt UPDATE Statement Using SQL*Plus 10g
Last updated on MARCH 08, 2017
Applies to:SQL*Plus - Version: 10.1 to 10.2.0.3
This problem can occur on any platform.
Generic UNIX platforms.
When run a script with UPDATE command using a 9i SQL*Plus executable and press Ctrl-C
<ENTER> when the script prompts for input variable values, the script execution is
interrupted and Oracle updates zero rows. This is the expected behavior.
Now, when run the same script using a 10g SQL*Plus executable, the script does not stop after
pressing Ctrl-C <ENTER> and proceeds to update all the rows on the table.
In checking V$SQL, the command is seen there without the WHERE clause. Oracle ignores that there
is a WHERE clause, and hence updates all records in the table.
Here is a sample script, call it test.sql, based on EMP demo table:
drop table EMP2;
create table EMP2 as select * from EMP;
UPDATE EMP2 set empno=1
WHERE job='&&v_job_name' and ename='&&v_emp_name';
To reproduce problem, run this test.sql script using SQL*Plus version 10g:
drop table EMP2
ERROR at line 1:
ORA-00942: table or view does not exist
Enter value for v_job_name: <------ Pressed CNTL-C and <ENTER> here.
old 2: where job='&&v_job_name' and ename='&&v_emp_name'
14 rows updated.
Notice that the UPDATE statement did not get cancelled and all records in table were updated.
The same problem does not happen using SQL*Plus 9i. With SQL*Plus 9i, zero rows get updated.
This problem reproduces on HP, Linux, and Sun Solaris; hence, problem is UNIX generic.
It does not reproduce on Windows.
Sign In with your My Oracle Support account
Don't have a My Oracle Support account? Click to get started
My Oracle Support provides customers with access to over a
Million Knowledge Articles and hundreds of Community platforms