RE: mapping a GTT to space usage in the Temp Tablespace
- From: Jonathan Lewis <jonathan@xxxxxxxxxxxxxxxxxx>
- To: "Hemant-K.Chitale@xxxxxx" <Hemant-K.Chitale@xxxxxx>, ORACLE-L <oracle-l@xxxxxxxxxxxxx>
- Date: Thu, 13 Mar 2014 07:53:35 +0000
My notes don't include an answer to your question, but v$sort_usage includes a
join to v$session (x$ksuse) and reports the prev_sql_id (as you observed) so
you could pick up the sql_id and child_number by repeating the join (or
creating a new view, or querying the x$ - which eventually you may have to do).
From there you can access v$sql_plan and then v$sql_workarea_active - and I
have a vague memory that there's something in v$sql_workarea active (or the x$)
that will let you find the answer your question (possibly by joining to another
x$ which isn't usually documented).
Regards
Jonathan Lewis
http://jonathanlewis.wordpress.com
@jloracle
________________________________
From: oracle-l-bounce@xxxxxxxxxxxxx [oracle-l-bounce@xxxxxxxxxxxxx] on behalf
of Chitale, Hemant K [Hemant-K.Chitale@xxxxxx]
Sent: 13 March 2014 06:22
To: ORACLE-L
Subject: mapping a GTT to space usage in the Temp Tablespace
I can identify a Global Temporary Tablespace consuming space in the Temp
tablespace by querying V$SORT_USAGE / V$TEMPSEG_USAGE. It appears as a row
with CONTENTS=’TEMPORARY’ SEGTYPE= ‘DATA’
If I have multiple GTTs being used by a single session , how do I identify
which entry in V$TEMPSEG_USAGE is which GTT ? I Need to “size” the GTTs and
cannot use DBA/USER_SEGMENTS.
For example , the session with SERIAL#49681 is currently using 4 GTTs. SQL_ID
doesn’t help because it is the SQL_ID of the last SQL from the session.
HEMANT>l
1* select * from v$tempseg_usage where tablespace='HEMANT_TEMP'
HEMANT>/
USERNAME USER SESSION_ADDR
SESSION_NUM SQLADDR SQLHASH SQL_ID
------------------------------ ------------------------------ ----------------
----------- ---------------- ---------- -------------
TABLESPACE CONTENTS SEGTYPE SEGFILE# SEGBLK#
EXTENTS BLOCKS SEGRFNO#
------------------------------- --------- --------- ---------- ----------
---------- ---------- ----------
HEMANT HEMANT 000000742D7717B8
12387 000000740D009DB0 2978105261 0890n6fss4jxd
HEMANT_TEMP TEMPORARY LOB_DATA 1050 1127424 1
128 2
HEMANT HEMANT 000000742CC87A28
49681 0000006EC8CA75B8 4269071746 0j88ahzz79rc2
HEMANT_TEMP TEMPORARY LOB_DATA 1050 1163776 1
128 2
HEMANT HEMANT 000000742CC87A28
49681 0000006EC8CA75B8 4269071746 0j88ahzz79rc2
HEMANT_TEMP TEMPORARY DATA 1050 1162240 544
69632 2
HEMANT HEMANT 000000742D36DE50
8017 0000006ED576DE00 2252965756 2j2xhw634m1vw
HEMANT_TEMP TEMPORARY DATA 1038 3917184 1031
131968 1
HEMANT HEMANT 000000742D36DE50
8017 0000006ED576DE00 2252965756 2j2xhw634m1vw
HEMANT_TEMP TEMPORARY DATA 1038 4045056 516
66048 1
HEMANT HEMANT 000000742D36DE50
8017 0000006ED576DE00 2252965756 2j2xhw634m1vw
HEMANT_TEMP TEMPORARY DATA 1038 4063744 518
66304 1
Hemant K Chitale
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