I am having a DB2 query(simple insert statement) which is trying to insert some 27 columns. Out of those columns 1 is Clob and the issue is there. For my Clob column, sometimes the value might even contain 28K characters. And in such extreme cases, I am getting the below error,
A system temporary table space with sufficient page size does not exist .. SQLCODE=-1585, SQLSTATE=54048, DRIVER=3.64.82
As I googled and gone through some pages, there is an entity called System Temporary Table Space which will be used by the DB when executing the query.(I am not sure, but few pages says that it will be used only for sorting and joining, but i don't have either in my query).
After going through few suggestions I created a System Temporary Table Space with the page size of 32K, using the below query,
CREATE SYSTEM TEMPORARY TABLESPACE STB PAGESIZE 32K MANAGED BY SYSTEM USING ( 'C:\DB2\NODE0005') BUFFERPOOL BP32K
Still my issue continues. What would be the proper way to have my query executed. I am trying to understand the importance of System Temporary Table Space, Page Size,etc.. But any help that could fix this issue for now would be greatly appreciated.
AngocA's soultion seems to work in principle it goes along the lines of
http://www-01.ibm.com/support/docview.wss?uid=swg21529563.
For the 4K system temporary table space the command
CREATE SYSTEM TEMPORARY TABLESPACE STB_4 PAGESIZE 4K
will work immediately if 4K is your default page size. To avoid an SQL 1582N error http://www.ibm.com/support/knowledgecenter/SSEPGG_9.5.0/com.ibm.db2.luw.messages.sql.doc/doc/msql01582n.html
you might need to create 8K,16 and 32 K bufferpools:
CREATE BUFFERPOOL BP8K pagesize 8K
CREATE SYSTEM TEMPORARY TABLESPACE STB_8 PAGESIZE 8K BUFFERPOOL BP8K
CREATE BUFFERPOOL BP16K pagesize 16K
CREATE SYSTEM TEMPORARY TABLESPACE STB_16 PAGESIZE 16K BUFFERPOOL BP16K
CREATE BUFFERPOOL BP32K pagesize 32K
CREATE SYSTEM TEMPORARY TABLESPACE STB_32 PAGESIZE 32K BUFFERPOOL BP32K
You can create a system temporary tablespace for each page as SMS (System Managed). In that case, your query will always find a tablespace with the appropriate page size.
CREATE SYSTEM TEMPORARY TABLESPACE STB_4 PAGESIZE 4K
CREATE SYSTEM TEMPORARY TABLESPACE STB_8 PAGESIZE 8K
CREATE SYSTEM TEMPORARY TABLESPACE STB_16 PAGESIZE 16K
CREATE SYSTEM TEMPORARY TABLESPACE STB_32 PAGESIZE 32K
When creating SMS, the tablespace will not preallocate space in the disk, and they only growth as they are used.
First you need to check the existing pagesize. You can create bufferpool of pagesize 8k,16k,32k etc.
First create bufferpool with required pagesize and then create system temporary tablespace with the required pagesize. Below are the step-by-step procedure.
sql1585n-system-temporary-tablespace-issue
Related
DECLARE GLOBAL TEMPORARY TABLE SESSION.TEMP_EMP (EMPNO CHAR(6));
I get error :
A table space could not be found with a page size of at least "4096" that authorization ID "A" is authorized to use.. SQLCODE=-286, SQLSTATE=42727, DRIVER=4.19.56
I use CLP to configure :
db2 connect to sss
db2 create bufferpool bp8k pagesize 8K
db2 create tablespace data pagesize 8K bufferpool bp8K
db2 terminate
I create above temporary table again , but still get error. I create temporary table from IBM data studio. The database sss is created by command create database sss without any more parameters. Are there any problems if i change tablespace and bufferpool. Because i dont want to change default parameters of database. It harms my database
Temporary tables need a user temporary tablespace (not a regular one you created)
Check out this docs about temporary tables
Here is how you can create a temporary tablespace
I created a database called mapdata in which I will create a table called school. One of the datatypes for one of the columns is db2gse.ST_Point. I have tried creating the table school with the column with that datatype but it gave me an error saying db2gse.ST_Point is an undefined name. So then I figured I had to enable the spatial commands using this statement:
db2se enable_db mapdata
But that gives me error as well. It says a temporary table space could not be created because there is no available system temporary table space that has a compatible page size.
How can I resolve this problem?
If you take a look at the db2se enable_db page in the manual you will probably notice this, among other things:
Usage notes
Ensure that you have a system temporary table space with a page size of 8 KB or larger and with a minimum size of 500 pages. This is a requirement to run the db2se enable_db command successfully.
The error message tells you that there is no such tablespace. I suspect that your database also does not have a matching bufferpool.
To create a system temporary tablespace you might use the following commands (assuming your database is configured with automatic storage):
db2 "create bufferpool bp8k pagesize 8 k"
db2 "create system temporary tablespace tmpsys8k pagesize 8 k bufferpool bp8k"
How to increase allocated table size for particular table using DB2 command.Or is there a alternative way to increase memory for all table by 5mb at once.
you do not increase the memory for the table, but for the tablespace it is located in.
select tbspace from syscat.tables where tabname = 'MYTAB'
db2 "alter tablespace tbspace extend (all 100000)
For one of my issue, I am trying to understand the functionalities of below DB2 entities,
System Temporary table space.
Page Size.
Table Space.
Buffer Pool.
And below is my observation,
There is a TableSpace linked to a table in the DB2 table syscat.tables
The TableSpaces are linked to BufferPool with the relation defined in syscat.tablespaces
System Temporary table space is the table space that the DB might use while executing the query.
Page Size is an unit that defines the limit of a TableSpace and says how much data can a TableSpace can hold.
Is there something wrong in my above understandings? And when I excute a query how does the DB chooses which TableSpace to choose?
my DBA created three different tablespaces in DB2 in order to store the same table (TABLE_IN_TBS), switching on a date field.
CREATE LARGE TABLESPACE "TBS_x" IN DATABASE PARTITION GROUP NODO0 PAGESIZE 32768 MANAGED BY DATABASE
USING (FILE 'x.LRG' 1G) ON DBPARTITIONNUMS (0)
EXTENTSIZE 32
PREFETCHSIZE AUTOMATIC
BUFFERPOOL BP32K0
OVERHEAD 12.670000
TRANSFERRATE 0.180000
AUTORESIZE YES
MAXSIZE 30 G
NO FILE SYSTEM CACHING
DROPPED TABLE RECOVERY ON;
Then I have TBS_x in which data in predefined range will be add, TBS_x+1 for the next range and so on..
My question is: I have to create the same table TABLE_IN_TBS in the different tablespaces? With the following syntax?
CREATE TABLE TABLE_IN_TBS
(
SomeColumns....
) TABLESPACE TBS_x;
And in which way I can refer to different tablespaces in order to insert data in the right tablespace based on my date field to switch?
I think you're talking about a partitioned table. It is defined like this:
CREATE TABLE TABLE_IN_TBS
(
SomeColumns....
)
PARTITION BY (your_date_column)
(STARTING FROM '2013-09-30' ENDING AT '2013-09-30' IN TABLESPACE TBS_1),
(STARTING FROM '2013-10-01' ENDING AT '2013-10-01' IN TABLESPACE TBS_2),
...;