Global Temporary Table
I would like to know if i am doing the right thing or not??
I've created a global temporary table "tempcomp".
"create global temporary table tempcomp (col1 number,col2
I looked into these groups and it was mentioned somewhere
that default is "on commit delete rows"... I am assuming that the rows
are being deleted after commit and not stored .
We have a web application which would be calling a stored
procedure which inserts into a global temporary some values we nee...Global Temporary Tables
Am wanting to create a temporary table within a PLSQL package. Have
EXECUTE IMMEDIATE 'create global temporary table temp_status........'
Problem now is that package wont compile due to insert statements for
this table. Compiler has no idea about this temp table or its
I take it temporary tables arent designed for this use are am i
missing something here?
Roy Munson wrote:
> Am wanting to create a temporary table within a PLSQL package. Have
> EXECUTE IMMEDIATE 'create global temporary table temp_status.........Global temporary table
I dont know how to declare and use a global temporary table in my java
I used these statements:
sql="declare global temporary table
session.temp(recordinteger,eventtype character(20)) not logged";
For inserting I'm trying to do..
sql="insert into session.temp values(2003,'fatal error');
But its flagging an error.With just the declare statement there is no
error.But i read somewhere that a temporary table space needs to be
created.I dont kn...global temporary tables?
In our application we have a table that tracks network sessions. The
1) create a session record
2) read/update the record several times during the session
3) delete the session record when the session ends
Update activity on this table is going to be pretty intense, and the
transient nature of the data makes it a good candidate for a temporary
and/or in-memory table.
Unfortunately, different network connections may be updating the same
session record at different times (connection pool), so the CREATE TABLE
TEMPORARY doesn't seem to fit the bill, since i...Global Temporary Tables
I am inserting records to a global temporary table(say A) in which a
trigger is fired and im getting results from other global tempory
tables(say B, C, D,..)...
This is my scenario...
I am able to fetch the results from the global temporary tables
B,C,D,...when inserting directly in the table A from the front end.
But I am not able to fetch the results from the global temporary
tables B,C,D,...when inserting thru a web service (in dotnet)in the
table A from the front end.
Can somebody explain the reson for the above and give a solution to
fetch the records from the global ...Global temporary tables performance
I'm trying to use a global temporary tables with a bulk insert, and
the performance for the temporary table is about 5 times LESS than
those of a real table - shouldent it be the opposite way?
Here is my example:
-- Create real table and a temporary one
create table realTable( id number(15) );
create global temporary table tmpTable(id number(15)) ON COMMIT DELETE
-- Insert 50000 records with bulk operation
-- into the rea table and the temporary one, and getting the time it
tableSize constant number := 50000;
type ty_numTable is varray (50000) of number(15)...Global temporary table and SP
I'm using SS2K on W2K.
Brieffing: Many months ago, I created a stored procedure only used by those
with admin rights in SS. Now, someone else (without admin rights) has to run
it. I gave him rigth to execute the SP but, at the second and more
execution, he got a error message concerning a temp table already existing
CREATE PROCEDURE MySP
DECLARE @strSQL AS VARCHAR(4000)
IF EXISTS (SELECT table_name FROM tempdb.information_Schema.tables WHERE
table_name = '##MyTmpTable...Global Temporary Table #2
We are running on Oracle 126.96.36.199 on Unix (AIX 188.8.131.52)
I'm facing a problem with a global temporary table (on commit preserve
rows) : it is going through the loop :
- delete all
At the beginning of the procedure everything is going fine. I can see
how the process is going on in v$session.
After half an hour, the speed begins to decrease a lot and there are
lot of "db file scattered read" events pointing to my temporary table.
It is true that there are lots of FTS on this temporary table, but its
content is very small (about 20 rows at each step of t...Load global temporary table
I have a fixedwidth .DAT file and a DB2 table, I have to create a flat
file by pulling data from both file and DB2 table. I tried using
IMPORT/LOAD utilities to load to a global temporary table and thought
of joining it and extracting, but IMPORT/LOAD are not allowed on
Can you please suggest me how to go about it...
thanks in advance,
Can you Import it to a real TABLE, and then export with a join?
As per my requirements I am not supposed to use a real table. Please
> As per my requ...Problem with Global Temporary Table
I am creating a procedure A which is creating a global temporary table
DECLARE GLOBAL TEMPORARY TABLE session.temp (Service CHAR(2),
ON COMMIT PRESERVE ROWS;
I am able to compile the proceudre.
But when I try to compile procedure B which is referencing the
temporary table in procedure A, I get the error.
"SESSION.TEMP" is an undefined name.
In procedure B all I am trying to do is
INSERT INTO session.temp VALUES ('MS', 0);
Can some one please help
> I am creating a procedure A which ...EXPLAIN and Global Temporary Tables
I have my developers explaining the stored procedures that they write
using visual studio. These stored procedures are for DB2 os390. In
one case, one of the developers has defined a global temporary table
that he uses to put the input parms into and then uses it to join
against to create a dataset. When he runs explain (both visual
explain, and CA's explain) it chokes on the SESSION.TABLE saying that
it doesn't exist.
Is there anyway I can have them explain these when they have global
temporary tables defined?
...GLOBAL TEMPORARY TABLE Efficiency ?
If I create one of these using DECLARE (not cataloged) and insert and
then delete no more than 20 256-byte rows again and again, and if this
would replace several overlapping legacy SELECTs, will I see run-time
I have heard from others that GTTs do not perform well. Here, I would
expect a net reduction on physical I/O. But might there be an offsetting
inefficiency otherwise ?
> If I create one of these using DECLARE (not cataloged) and insert and
> then delete no more than 20 256-byte rows again and again, and if this...Global temporary tables surprise
I created a global temporary table, using the following syntax:
[mgogala@medo tmp]$ psql scott
Timing is on.
Type "help" for help.
scott=# create global temporary table t_emp
scott-# on commit preserve rows
scott-# as select * from emp;
Time: 127.086 ms
WARNING: there is no transaction in progress
Time: 0.353 ms
scott=# select * from t_emp;
empno | ename | job | mgr | hiredate | sal | comm |
7369 | SMITH |...creating global temporary tables
Can you please advice on how to create global temporary tables in
informix 9.1, so that it can be accessed across procedures?
> Can you please advice on how to create global temporary tables in
> informix 9.1, so that it can be accessed across procedures?
You should have abandoned IDS 9.1x prior to 2000-01-01.
What do you mean by 'across procedures'?
Did you read the SQL manual on CREATE TABLE - the section on CREATE TEMP
The name 'global temporary table' is SQL standard speak and doesn't have
a direct counter-part in IDS. I...global temporary table disappears??
I'm using a script that creates several global temporary tables.
Among other temporary tables created, part of the process creates one
table and then creates a second table from some of the data from the
previous one. I then do an update to the second one from the first with
some additional data; an exercise in getting a unique set of data :-(.
The update to the second table complains with the "tuple at tid already
deleted" error. And then the next statement that tries to update a
different table from the second table complains th...global temporary table and connection pooling
The environment I'm running is apache/tomcat and oracle 816. I'm using
global temporary tablespaces in certain cases( they were created using
on commit preserve rows option as it is a multipart query), and then
the table is truncated after the last query has executed. I've noticed
that occasionally if I run two independent queries using 2 different
sessions, and the second query accesses the temp table before the
first session has truncated it, I'm seeing results from the first
session. I thought that the global temporary tables were supposed to
be restricted to the session. Do...output global optimization temporary solution
I am using the global optimization toolbox. And I have been waiting the output for two days. Would it be any method that I can ask the toolbox to output the temporary best solution? (Or hourly report) ** It does not need for the current run, I am asking whether I can write a couple lines of code to do this next time.
On 10/5/2011 7:36 PM, Marco Wu wrote:
> Dear all,
> I am using the global optimization toolbox. And I have been waiting the
> output for two days. Would it be any method that I can ask the toolbox
> to output the temporary best solution? (Or ...DECLARE GLOBAL TEMPORARY TABLE problem
A bit longwinded; apologies in advance.
My client has two large iSeries machines, both at V5R2
(they may be logical partitions of the same physical
machine; I'm not sure.) The DECLARE GLOBAL TEMPORARY
TABLE statement in SQL behaves a little differently on
the two machines, causing me problems. I am issuing
the statement in the Run SQL Scripts window of the
navigator; *SQL naming is in effect (this matters.)
On the development machine, the table created is owned
by the group profile to which my user profile belongs;
there is no *GROUP authority generated, and *PUBLIC
authority ...Re: Global temporary tables performance
Does anyone know the Oracle bug number?
> I'm trying to use a global temporary tables with a bulk insert, and
> the performance for the temporary table is about 5 times LESS than
> those of a real table - shouldent it be the opposite way?
> Here is my example:
> -- Create real table and a temporary one
> create table realTable( id number(15) );
> create global temporary table tmpTable(id number(15)) ON COMMI
> -- Insert 50000 records with bulk operation
> -- into the rea...Global Temporary Table Scalability Problem
We have a complex stored procedure that runs slowly under large
volumes of data.
After profiling and testing, I found that the use of a single global
temporary table (i.e. one w/ only 5 records) caused the problem and
that if I replaced the temp table with a permanent table, the results
improved dramatically. (20-50x).
Some more info:
the procedure in question receives as one of its params a
comma-delimited-list of "principal Ids". This list is usually very
short (1-6 entries). The procedure parses the list and populates a
1field/1key temp table. The procedure then uses that t...Error while declaring a global temporary table
I have very little knowledge about creating Procedures/functions in
When i tried to create the test function like
CREATE FUNCTION GET_TEST
READS SQL DATA
CALLED ON NULL INPUT
INHERIT SPECIAL REGISTERS
DECLARE v_TEST VARCHAR(4000);
DECLARE v_TEST_Select VARCHAR(4000);
DECLARE v_TEST_Sort VARCHAR(1000);
DECLARE GLOBAL TEMPORARY TABLE TEMP_TEST
...Global Temporary Table Efficiency ? #2
[This is a response to your earlier reponse to my original on this
subject, however late due to list email problems]
Thanks for the prompt response. Our version is DB2 for z/OS, but I do
agree that your points seem relevant, at lest in this case.
The SELECTs I want to replace iterate for each input row (from a main
cursor), so the equivalent GTT behavior would be to recycle each time.
First, empty the table with a DELETE FROM <GTT> [no WHERE]. Second,
INSERT INTO <GTT> SELECT FROM... So, if I understand you, there should
be no appending and no gaps from ...Global Temporary Table
I posted a question last week where people where some of the guys who
replied recommanded that I use "create global temporary table" instead
of "create table". I tried it with the script I've been asked to modify
that contained the latter construction.
I get my results every time with the "create table" version, but if I'm
lucky, I get results maybe 50% of the time with the "create global
temporary table". Take note that it's the same queries that are run in
both cases and that I also tried the "on commit delete rows", &quo...RE: creating global temporary tables
From: email@example.com [mailto:firstname.lastname@example.org]
On Behalf Of Rishi
Sent: 31 October 2005 09:25 AM
Subject: creating global temporary tables
>Can you please advice on how to create global temporary tables in
>informix 9.1, so that it can be accessed across procedures?
I think what (Rishi?) is looking for, it a temp table that can be
accessed by other users (other sessions) - am I correct in this
This is not possible in Informix, unless IDS 10 has a new feature I am