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how to close open cursor when exception [message #657612]

Tue, 15 November 2016 19:40

yk107
Messages: 15
Registered: October 2015

Junior Member

Hello
I am trying to find answer.
PL/SQL script has open cursors. Should cursors to be closed if exception occurs and script exit.
Thanks

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Re: how to close open cursor when exception [message #657613 is a reply to message #657612]

Tue, 15 November 2016 21:13

BlackSwan
Messages: 26766
Registered: January 2009
Location: SoCal

Senior Member

yk107 wrote on Tue, 15 November 2016 17:40

Hello
I am trying to find answer.
PL/SQL script has open cursors. Should cursors to be closed if exception occurs and script exit.
Thanks

post proof about cursor existence after script exits.

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Re: how to close open cursor when exception [message #657618 is a reply to message #657612]

Wed, 16 November 2016 00:51

Michel Cadot
Messages: 68770
Registered: March 2007
Location: Saint-Maur, France, https...

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Yes, you must have an exception handler to close opened cursors otherwise then remain opened until the session ends.
This is a known security hole when you share session pool as following users could see data of a previous ones.

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Re: how to close open cursor when exception [message #657621 is a reply to message #657618]

Wed, 16 November 2016 03:36

cookiemonster
Messages: 13972
Registered: September 2008
Location: Rainy Manchester

Senior Member

Depends on whether you are talking about ref cursors or explicit cursors.

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Re: how to close open cursor when exception [message #657622 is a reply to message #657621]

Wed, 16 November 2016 03:40

Michel Cadot
Messages: 68770
Registered: March 2007
Location: Saint-Maur, France, https...

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Correct, and we could add implicit cursors. Smile

Smile

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Re: how to close open cursor when exception [message #657624 is a reply to message #657622]

Wed, 16 November 2016 05:53

yk107
Messages: 15
Registered: October 2015

Junior Member

thank you for help

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Re: how to close open cursor when exception [message #657625 is a reply to message #657624]

Wed, 16 November 2016 06:32

Michel Cadot
Messages: 68770
Registered: March 2007
Location: Saint-Maur, France, https...

Senior Member
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So what is your conclusion?

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Re: how to close open cursor when exception [message #657628 is a reply to message #657625]

Wed, 16 November 2016 07:57

yk107
Messages: 15
Registered: October 2015

Junior Member

I will close cursor inside exception , before close I will check if it is open

Thanks

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Re: how to close open cursor when exception [message #657629 is a reply to message #657628]

Wed, 16 November 2016 08:26

cookiemonster
Messages: 13972
Registered: September 2008
Location: Rainy Manchester

Senior Member

Are you talking about ref cursors or explicit cursors?
If it's explicit then you don't need to do that.

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Re: how to close open cursor when exception [message #657631 is a reply to message #657629]

Wed, 16 November 2016 08:55

yk107
Messages: 15
Registered: October 2015

Junior Member

explicit cursors

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Re: how to close open cursor when exception [message #657632 is a reply to message #657631]

Wed, 16 November 2016 09:07

cookiemonster
Messages: 13972
Registered: September 2008
Location: Rainy Manchester

Senior Member

Then you don't need to. Oracle closes them automatically when they go out of scope.

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Re: how to close open cursor when exception [message #657636 is a reply to message #657632]

Wed, 16 November 2016 12:57

yk107
Messages: 15
Registered: October 2015

Junior Member

Thank you !
I will change script back !

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