Pooled table

how pooled table stored in database table?plzz tell

Hi,
Pool table is type of a table, it maintains as many to one relation, it maintains the information of the screens, fields and all, it may are may not to maintain about the primarykey.
Please reward points, if it is useful,
regards

Similar Messages

How to get the data from Pooled Table T157E.

Hi Experts,
How to get the data from Pooled Table T157E.
Any help.
Thanks in Advance,
Ur's Harsha.

create some internal table similar to T157E and pass all data as per SPRAS.
After that use internal table in your program as per the requirement.
Regds,
Anil

Select query taking too much time to fetch data from pool table a005

Dear all,
I am using 2 pool table a005 and a006 in my program. I am using select query to fetch data from these table. i.e. example is mentioned below.
select * from a005 into table t_a005 for all entries in it_itab
                   where vkorg in s_vkorg
                   and     matnr in s_matnr
                   and     aplp   in s_aplp
                   and     kmunh = it_itab-kmunh.
here i can't create index also as tables are pool table...If there is any solutions , than please help me for same..
Thanks ,

it would be helpful to know what other fields are in the internal table you are using for the FOR ALL ENTRIES.
In general, you should code the order of your fields in the select in the same order as they appear in the database. If you do not have the top key field, then the entire database is read. If it's large then it's going to take a lot of time. The more key fields from the beginning of the structure that you can supply at faster the retrieval.
Regards,
Brent

Use of "Pool Table(s)" in Module Pool Program

Hi,
I often see/hear that Pool tables play an important role in Module Pool Programs.
anybody please explain me how Pool tables are used in Module Pools?? => Did you look for any documentation?
if possible with code snippets. =>NO.
Thanks,
Kranthi.
Edited by: kishan P on Nov 14, 2010 7:23 PM

Hi,
I often see/hear that Pool tables play an important role in Module Pool Programs.
anybody please explain me how Pool tables are used in Module Pools?? => Did you look for any documentation?
if possible with code snippets. =>NO.
Thanks,
Kranthi.
Edited by: kishan P on Nov 14, 2010 7:23 PM

How can I get data in flat file from Pool table and cluster table ?

Hi,
I am working in one Achiving project. My requirement is to get data into flat file from Cluster table and pool table.
Is there any tool avilable to download data into flat file from pool table and cluster table ?
if table name given in the selection screen then data will be downloaded into flat file.
waiting for quick response.
Best Regards,
Bansidhar

Data cannot be retrived directly form the cluster table
as the Cluster results are stored in Cluster Key say for example PCLkey
and form that Key we need to fetch the data
these clustes are not the part of PNP or PNPCE tables
for ur info kindly check

View, Clustur & Pooled Table

Hi,
I have few questions on the above topics.
How can we retreive data from View , Clustur & Pooled Table using Select statements.
If possible can you explain me with an example.
what kind of data can we retreive from them . for example BSEC - how can we use it .
Thank you in advance.
Ry

hi,
You can access them using SELECT statements, you CAN NOT use joins though.
For example, BSEG is a cluster table.
report znave_0003 .
data: ibseg type table of bseg with header line.
parameters: p_bukrs type bseg-bukrs.
select * into table ibseg from bseg
up to 100 rows
where bukrs = p_bukrs.
loop at ibseg.
write:/ ibseg-bukrs, ibseg-belnr.
endloop.
to retrieve the data from a view....
Declare the internal table with the type of View.
Data : itab type table of zview001.
or write select query as
select * from zview001 into corresponding fields of itab.
Also you can uncheck the Unicode checks active (checkbox) in the program attributes.
{When you check that unicode checkbox, you should use an internal table without a header line. Instead you should declare a work area)
Hope it helps...
~~Guduri

How to extract data from a pool table?

Hello,
I want to create an generic extractor for table T030, but this is a pool/cluster table and it is not possible to create a view for such a table.
Do somebody know how to solve this problem? Does there exist function modules to read the data from a pool data?
Thanks
Theodor

Function Module would be your best bet..considering thats the best way as far as performance is taken into consideration.
But there is a work around too...
If the other table u use in the join is not a clusture table then u can create a view on that table and u can add append structure to this with fields from the clusture table and use an exit to populate it.
Try it Will Work...used this technique when I used KONV.* This Procedure does not decrease performance considerably.
at least in my case as thre were only a few fields i needed from pool table
Hope this Helps
Anand Raj

How can i decleare select-options in module pool table control?

Hi everybody!!
Can anyone tell me how can I decleare select-options in module pool table control screen?. I have declared it in a screen with a table control but a dump is triggered due to an error when generating the selection screen.
Regards...

My suggestion will be try to use fm
call function 'FREE_SELECTIONS_DIALOG'
Please search this forum you can find lot of threads related to this.
a®

Is it possible to use a pooled table when creating a view?

Hi,
I am trying to create a view based on table A005 but this table is a Pooled table and the system wont allow me to create a view on it.
Is there any way to do this?
Thanks,

Hi,
Join stmt can not be executed on Cluster tables & pooled tables.
regards,
ajit.

Pool Table Creation in ABAP Dictionary

Please Help
How to create Pool table in ABAP DDIC ? I Tried with the Existing Transparent Table
Changing Its Category to Pool Table by going through EXTRA menu and then Change Table Category Option but After this
it is asking for Table Pool name in Delivery and Maintaince Tab what should be the name of table pool ?
How to assign pool table in Table Pool?

hi,
u will have to create your own ztable pool/cluster anad assign your table to that .
eg.
refer to table A005 its a pool table ...

Event Pooling Table doesn't work

I have created Event Pooling Table and registered it. When I insert correct name into field TABLENAME nothing happens - when I look at BI Administrator - Manage - Cache - the table still has entry in cache (and record is deleted from EPT table). When I insert incorrect name info field TABLENAME, I can see message in errorlog (The physical table misstat1_db::MIP:MV_E_HIMA in a cache polled row does not exist.) and I suppose that it is working. But cache not purged.
Can you someone tell me why?
Thx.

Hi,
Stale cache entries are purged automatically at the specified polling intervals. As your saying record has deleted, it means that polling has occured.
Are you sure that the cache entry you are looking at is the same table which has been modified?
If possible, not a solution just for debugging, try to create sample request in Answers and check whether it's been changing when the table get modified.
-Vency

Dynamic text in module pool table control

Hi ,
Can we have dynamic header text in module pool table control. Like dynamic header text in ALV report.
Thanks,
Prem.

Hi,
Populate an internal table with the header text that you want.
Replace the headers with I/O fields.
Populate the Headers in the PBO.

Alternative for Pooled table M_VMVAC in ECC 5 version

Hi,
Pooled table M_VMVAC in version 3.1i does not exist
in ECC 5.Can anyone tell me the alternative for this?
Pool/cluster is M_VMVA in 3.1i version
Helpful answers will be rewarded
Thanks
Kiran

Check data base view V_VMVAC.
Regards
Sridhar

Alternative for Pooled table M_VMVLA in ECC 5 version

Hi,
Pooled table M_VMVLA in version 3.1i does not exist
in ECC 5.Can anyone tell me the alternative for this?
Pool/cluster M_VMVL in 3.1i version
Helpful answers will be rewarded
Thanks
Kiran

Hai Kiran
Check the following Code in program 'RVV50L21'.
the following Code is present in ECC 5.0
select * from shp_idx_gdsi where wadat in i_datum "470
 and vstel in i_vstel
 and route in i_route
 and vbeln eq vttp-vbeln.
simillar code in 3.1 version is
select * from m_vmvla where wadat in i_datum
 and vstel in i_vstel
 and route in i_route
 and vbeln eq vttp-vbeln.
Replacent table for m_vmvla is shp_idx_gdsi
Regards
Sreeni

Normal query on cluster/pooled tables...

Hi experts,
Can i write a normal sql query on cluster or pooled tables?
Will it create any sort of problem?
Regards,
Viswanathan .S

Hi Viswanathan,
It is not recommended to access them directly due to there size like tables BSEG, CDPOS.
Report may run smooth on dev but will slow down as data increases in case of production server.
There are alternative tables available for their substitution. Which table(s) are you trying to access anyways ?
Regards,
Naveen

Inforation on Pool tables and cluster tables required.

I want to know about the pool tables and cluster tables like how to create them and how to look the tables associated with the given tables. Like for the table BSEG we have other tables linked BSID etc. I'm new to this concept please guide me.

Pooled Table:
A pooled table in R/3 has a many-to-one relationship with a table in the database (see Figures 3.1 and 3.2). For one table in the database, there are many tables in the R/3 Data Dictionary. The table in the database has a different name than the tables in the DDIC, it has a different number of fields, and the fields have different names as well. Pooled tables are an SAP proprietary construct.
When you look at a pooled table in R/3, you see a description of a table. However, in the database, it is stored along with other pooled tables in a single table called a table pool. A table pool is a database table with a special structure that enables the data of many R/3 tables to be stored within it. It can only hold pooled tables.
R/3 uses table pools to hold a large number (tens to thousands) of very small tables (about 10 to 100 rows each). Table pools reduce the amount of database resources needed when many small tables have to be open at the same time. SAP uses them for system data. You might create a table pool if you need to create hundreds of small tables that each hold only a few rows of data. To implement these small tables as pooled tables, you first create the definition of a table pool in R/3 to hold them all. When activated, an associated single table (the table pool) will be created in the database. You can then define pooled tables within R/3 and assign them all to your table pool.
Pooled tables are primarily used by SAP to hold customizing data.
Cluster Table:
A cluster table is similar to a pooled table. It has a many-to-one relationship with a table in the database. Many cluster tables are stored in a single table in the database called a table cluster.
A table cluster is similar to a table pool. It holds many tables within it. The tables it holds are all cluster tables.
Like pooled tables, cluster tables are another proprietary SAP construct. They are used to hold data from a few (approximately 2 to 10) very large tables. They would be used when these tables have a part of their primary keys in common, and if the data in these tables are all accessed simultaneously.
Table clusters contain fewer tables than table pools and, unlike table pools, the primary key of each table within the table cluster begins with the same field or fields. Rows from the cluster tables are combined into a single row in the table cluster. The rows are combined based on the part of the primary key they have in common. Thus, when a row is read from any one of the tables in the cluster, all related rows in all cluster tables are also retrieved, but only a single I/O is needed.
A cluster is advantageous in the case where data is accessed from multiple tables simultaneously and those tables have at least one of their primary key fields in common. Cluster tables reduce the number of database reads and thereby improve performance.
Restrictions on Pooled and Cluster Tables
1. Pooled and cluster tables are usually used only by SAP and not used by customers, probably because of the proprietary format of these tables within the database and because of technical restrictions placed upon their use within ABAP/4 programs. On a pooled or cluster table:
2. Secondary indexes cannot be created.
3. You cannot use the ABAP/4 constructs select distinct or group by.
4.You cannot use native SQL.
5.You cannot specify field names after the order by clause. order by primary key is the only permitted variation.
For creation of pooled /cluster table, have a look at below link.
http://help.sap.com/saphelp_erp2004/helpdata/en/81/415d363640933fe10000009b38f839/frameset.htm
For creation of table pool /cluster, have a look at below link.
http://help.sap.com/saphelp_erp2004/helpdata/en/81/415d363640933fe10000009b38f839/frameset.htm
Have a look at below link.
http://www.sap-img.com/abap/the-different-types-of-sap-tables.htm
Best Regards,
Vibha
*Please mark all the helpful answers

Pooled table

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