Closing a cursor doesn't release the lock.
Think of it in SQL*PLUS. If you issue a SELECT ... FOR UPDATE statment, it
opens an implicit cursor returns the rows and closes the cursor. But it
doesn't release the lock.
Locks can only be released by COMMIT/ROLLBACK
Regards
Naveen
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Sent: Friday, January 03, 2003 4:44 PM
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Hi List,
Little confused about the locks. I wrote a plsql procedure as follows:
---
CREATE OR REPLACE procedure b as
cursor sel_up is select * from emp_info for update;
begin
For emp_rec in sel_up1 LOOP
dbms_output.put_line('Hi');
End loop;
end;
---
I am doing select for update in the cursor and coming out of the procedure
without commit/rollback. When I run this procedure from sqlplus, it should
acquire the lock on the rows and when procedure ends it should release locks
as I am closing the cursor.
But even if the procedure completes, it doesn't release lock. It releases
locks only if I terminate the session or manually type rollback or commit on
the sqlplus prompt. Can somebody explain this ?
Regards,
Dilip
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<P>Hi List,</P>
<P>Little confused about the locks. I wrote a plsql procedure as
follows:</P><FONT color=#0000f0 size=2>
<P>---</P>
<P>CREATE</FONT><FONT color=#000000 size=2> </FONT><FONT color=#0000f0
size=2>OR</FONT><FONT color=#000000 size=2> </FONT><FONT color=#0000f0
size=2>REPLACE</FONT><FONT color=#000000 size=2> </FONT><FONT color=#0000f0
size=2>procedure</FONT><FONT color=#000000 size=2> b </FONT><FONT
color=#0000f0 size=2>as</FONT></P>
<P><FONT color=#0000f0>c<FONT size=2>ursor</FONT></FONT><FONT color=#000000
size=2> sel_up </FONT><FONT color=#0000f0 size=2>is</FONT><FONT color=#000000
size=2> </FONT><FONT color=#0000f0 size=2>select</FONT><FONT color=#000000
size=2> </FONT><FONT color=#0000f0 size=2>*</FONT><FONT color=#000000 size=2>
</FONT><FONT color=#0000f0 size=2>from</FONT><FONT color=#000000 size=2>
emp_info fo</FONT><FONT color=#0000f0 size=2>r</FONT><FONT color=#000000
size=2> </FONT><FONT color=#0000f0 size=2>update;</FONT><FONT color=#000000
size=2> </P></FONT><FONT color=#0000f0 size=2>
<P>begin</P>
<P>For</FONT><FONT color=#000000 size=2> emp_rec </FONT><FONT color=#0000f0
size=2>in</FONT><FONT color=#000000 size=2> sel_up1 </FONT><FONT
color=#0000f0 size=2>LOOP</P>
<P>dbms_output.put_line(</FONT><FONT color=#ff0000 size=2>'Hi'</FONT><FONT
color=#0000f0 size=2>);</P>
<P>End</FONT><FONT color=#000000 size=2> </FONT><FONT color=#0000f0
size=2>loop;</P>
<P>end;</P>
<P></FONT> ---</P>
<P>I am doing select for update in the cursor and coming out of the procedure
without commit/rollback. When I run this procedure from sqlplus, it
should acquire the lock on the rows and when procedure ends it should release
locks as I am closing the cursor.</P>
<P>But even if the procedure completes, it doesn't release lock. It releases
locks only if I terminate the session or manually type rollback or commit on
the sqlplus prompt. Can somebody explain this ? </P>
<P>Regards,</P>
<P>Dilip</P>
<P> </P>
<P><BR> </P>
<hr><font face="Arial" size="2"><b>Get Your Private, Free E-mail from
Indiatimes at </font><a href="http://email.indiatimes.com";><font
face="Arial" size="2">http://email.indiatimes.com</font></a></b><br>Buy the
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href="http://www.videos.indiatimes.com";>http://www.videos.indiatimes.com</A><
br><font face="Arial" size="2">Now bid just <b>7 Days in Advance</b> and get
<b>Huge Discounts</b> on Indian Airlines Flights. So log on to <a
href="http://indianairlines.indiatimes.com";>http://indianairlines.indiatimes.
com</a> and Bid Now !</font>
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