Re: cluster table & table cluster & hr clusters

Hi Friends ,
what is the different b/w cluster tables & table cluster? ,
we have different clusters in HR like PCL1 ... what are these cluster tables or table clusters?.
also we have payroll clusters RT, CRT ... what are these?
could you please give some examples?
thanks &Regards

Different Clusters in HR are
PCL1 - HR work areas
PCL2 - Accounting results (TE, payroll)
PCL3 - Recruitment
PCL4 - Documents
The PCL1 contains the following sub areas:
B1 Time Events PDC
G1 Group Incentive Wages
L1 Individual Incentive Wages
PC Personal Calendar
TE Travel Expenses/Payroll Results
TS Travel Expenses Master Data
TX Infotype Texts
Z1 PDC Interface cost accounting materials management
The database PCL2 contains the following sub areas:
B2 Time Accounting Results
CD Cluster Directory of the CD manager
PS Generated Schemas
PT Text for generated Schemas
RX Payroll Accounting Results/International
Rn Payroll Accounting Results/Country Specific (n= HR country indicator) Therefore US = RU
ZL Personal Work Schedule
The database PCL4 contains the following sub areas:
LA Long document for Master data
LB Long document for Applicant data
SA Short document for Master data
SB Short document for Applicant data
RT and CRT as said by sikindir are result table that will fetch the data from the payroll cluster stores in the PCL2 in RX cluster where X is the country version.
Hope this will clarify you

Similar Messages

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

Cluster,pooled tables

Hi all,
What is the difference of Cluster and pooled tables.and the specific applications.do we get the need to create the pooled tables in implmentations.
u.khan.

Hai
Pooled tables. Pooled tables in the dictionary has a many-to-one relation with the table in database. Table in the database has the different name as in the dictionary. Pooled table are stored in table pool at the database level.
Several logical data records from different cluster tables can be stored together in one physical record in a table cluster.
A cluster key consists of a series of freely definable key fields and a field (Pageno) for distinguishing continuation records. A cluster also contains a long field (Vardata) that contains the contents of the data fields of the cluster tables for this key. If the data does not fit into the long field, continuation records are created. Control information on the structure of the data string is still written at the beginning of the Vardata field. A table cluster has the following structure:
Field
Data type
Meaning
CLKEY1
First key field
CLKEY2
Second key field
CLKEYn
nth key field
Pageno
INT2(5)
Number of the continuation record
Timestamp
CHAR(14)
Time stamps
Pagelg
INT2(5)
Length of the string in Vardata
Vardata
RAW (n)
Contains the entries from the data fields of the assigned cluster tables as a string, max. length n depends on the database system used
Cluster Tables
The records of all cluster tables with the same key are stored under one key in the assigned table cluster. The values of the key fields are stored in the corresponding key fields of the table cluster. The values of all data fields of the assigned cluster tables are written as a string to the Vardata field of the table cluster. Besides the actual data values, the data string contains information on the structure of the data and which table it comes from. If the string exceeds the maximum length of the Vardata field, a continuation record is written with the same key values. The continuation records for a key are distinguished by their value in field Pageno. The actual length of the string in the Vardata field is stored in the Pagelg field by the database interface.
the major difference between Standard tables, Pooled tables and Clusterd Tables?
A transparent table is a table that stores data directly. You can read these tables directly on the database from outside SAP with for instance an SQL statement.
Transparent table is a one to one relation table i.e. when you create one transparent table then exactly same table will create in data base and if is basically used to store transaction data.
A clustered and a pooled table cannot be read from outside SAP because certain data are clustered and pooled in one field.
One of the possible reasons is for instance that their content can be variable in length and build up. Database manipulations in Abap are limited as well.
But pool and cluster table is a many to one relationship table. This means many pool table store in a database table which is know as table pool.
All the pool table stored table in table pool does not need to have any foreign key relationship but in the case of cluster table it is must. And pool and cluster table is basically use to store application data.
Table pool can contain 10 to 1000 small pool table which has 10 to 100 records. But cluster table can contain very big but few (1 to 10) cluster table.
For pool and cluster table you can create secondary index and you can use select distinct, group for pool and cluster table. You can use native SQL statement for pool and cluster table.
A structure is a table without data. It is only filled by program logic at the moment it is needed starting from tables.
A view is a way of looking at the contents of tables. It only contains the combination of the tables at the basis and the way the data needs to be represented. You actually call directly upon the underlying tables.
Go through the following Link
http://help.sap.com/saphelp_nw04/helpdata/en/cf/21f083446011d189700000e8322d00/content.htm
Thanks & regards
Sreenivasulu P

Cluster,pool tables

how can i see cluster and pooled tables
in se11 i tried but i am not able to see
can any body help in this regard with example

Look at <a href="http://help.sap.com/printdocu/core/Print46c/en/data/pdf/BCDWBDIC/BCDWBDIC.pdf">BC - ABAP Dictionary</a>
Pooled and Cluster Tables
Table pools (pools) and table clusters (clusters) are special table types in the ABAP Dictionary.
The data from several different tables can be stored together in a table pool or table cluster.
Tables assigned to a table pool or table cluster are referred to as pooled tables or cluster tables.
A table pool or table cluster should be used exclusively for storing internal control information
(screen sequences, program parameters, temporary data, continuous texts such as
documentation). All data of commercial relevance is stored exclusively in transparent tables!
Table Pools
A table in the database in which all records from the pooled tables assigned to the table pool are
stored corresponds to a table pool.
Table Clusters
Several logical data records from different cluster tables can be stored together in one physical
record in a table cluster.
A cluster key consists of a series of freely definable key fields and a field (Pageno) for
distinguishing continuation records. A cluster also contains a long field (Vardata) that contains
the contents of the data fields of the cluster tables for this key. If the data does not fit into the long
field, continuation records are created. Control information on the structure of the data string is
still written at the beginning of the Vardata field.
Regards

How to convert Internal Table to Cluster Table ?

How to convert Internal Table to Cluster Table ?

Use :
EXPORT itab TO DATABASE dbtab(ar) ID key.
EXPORT obj1 ... objn TO DATABASE dbtab(ar) ID key.
Additions:
1. ... = f (for each field you want to export)
2. ... FROM f (for each field you want to export)
3. ... CLIENT g before ID key )
4. ... USING form
5. ... FROM wa (as last addition or after dbtab(ar))
In an ABAP Objects context, a more severe syntax check is performed that in other ABAP areas. See Implicit field names not allowed with clusters and Table work areas not allowed.
Effect
Stores a data cluster in database table dbtab. The specified objects obj1 ... objn (fields, structures, or tables) are stored as a single cluster in the database table dbtab.
The specified database table dbtab must have a standard structure.
The database table dbtab is divided into various logically-related sections (ar, two-character name).
You can export a collection of data objects (a data cluster) to a part of the database using a key (field key).
You can import individual data objects from this collection using the IMPORT statement.
Notes
In classes, you must always assign explicit names to the data objects you want to export, that is, you must use either addition 1 or addition 2.
In classes, you must always specify the work area explicitly, that is, addition 5 is obligatory.
The table dbtab that appears after DATABAE must be declared under TABLES (except in addition 5).
You cannot export the header lines of internal tables. If you specify the name of an internal table with header line, the system always exports the body of the table.
You cannot export data, object, or interface references.
The data is stored in the database, and is consequently not actually stored until a database commit occurs (see LUW). Until this point, you can undo all of your changes using a database rollback (see Programming Transactions).
Example
Exporting two fields and an internal table to the database table INDX:
TABLES INDX.
TYPES: BEGIN OF ITAB3_TYPE,
 CONT(4),
 END OF ITAB3_TYPE.
DATA: INDXKEY LIKE INDX-SRTFD VALUE 'KEYVALUE',
 F1(4), F2 TYPE P,
 ITAB3 TYPE STANDARD TABLE OF ITAB3_TYPE WITH NON-UNIQUE
 DEFAULT KEY INITIAL SIZE 2,
 WA_INDX TYPE INDX.
Fill the data fields before CLUSTR
before the actual export
INDX-AEDAT = SY-DATUM.
INDX-USERA = SY-UNAME.
Export der Daten.
EXPORT F1 FROM F1
 F2 FROM F2
 ITAB3 FROM ITAB3
 TO DATABASE INDX(ST) FROM WA_INDX ID INDXKEY.

Regards

Issue with single table hash cluster

I'm still learning lots about html db so please do bear with me...
I have a table that is part of a single table hash cluster. The cluster and table are created like so:
create cluster webmon.owm_system
db_id number(3),
env_id number(3)
size 171
hashkeys 1009
single table
pctfree 2
pctused 96;
create table webmon.owm_system
tier_id number(3) not null,
host_id number(3) not null,
port number(4) not null,
sid varchar2(8) not null,
admin_user varchar2(32) not null,
admin_auth varchar2(48) not null,
primary_dba_id number(3) not null,
secondary_dba_id number(3) not null,
primary_bac_id number(3) not null,
secondary_bac_id number(3) not null,
version_id number(3) not null,
log_mode_id number(3) not null,
db_id number(3) not null,
env_id number(3) not null,
admin_conn varchar2(32) null,
constraint owm_system_pk primary key (db_id, env_id)
cluster webmon.owm_system
db_id,
env_id
);I have created a form (and report) to view and edit the data in the table. When I click the "Apply Changes" button on the form after editing data, I get an error. The SQL that is sent to the database is incorrect.
Here is the (reformatted) incorrect SQL that is sent (captured in a database trace file):
update
"WEBMON"."OWM_SYSTEM"
set
"SECONDARY_DBA_ID" = :DML_BV0001,
"DB_ID" = :DML_BV0002,
"DB_ID" = :DML_BV0003, /* This should not be here */
"ENV_ID" = :DML_BV0004,
"ENV_ID" = :DML_BV0005, /* This should not be here */
"HOST_ID" = :DML_BV0006,
"PORT" = :DML_BV0007,
"SID" = replace(:DML_BV0008,'%null%',null),
"ADMIN_USER" = replace(:DML_BV0009,'%null%',null),
"ADMIN_AUTH" = replace(:DML_BV0010,'%null%',null),
"ADMIN_CONN" = replace(:DML_BV0011,'%null%',null),
"VERSION_ID" = :DML_BV0012,
"LOG_MODE_ID" = :DML_BV0013,
"TIER_ID" = :DML_BV0014,
"PRIMARY_DBA_ID" = :DML_BV0015,
"PRIMARY_BAC_ID" = :DML_BV0016,
"SECONDARY_BAC_ID" = :DML_BV0017
where
"DB_ID" = :p_rowid
and
"ENV_ID" = :p_rowid2Why are the DB_ID and ENV_ID columns in the statement twice? That is the error.
Now, if I create the table as just a basic, non-clustered table like this:
create table webmon.owm_system
tier_id number(3) not null,
host_id number(3) not null,
port number(4) not null,
sid varchar2(8) not null,
admin_user varchar2(32) not null,
admin_auth varchar2(48) not null,
primary_dba_id number(3) not null,
secondary_dba_id number(3) not null,
primary_bac_id number(3) not null,
secondary_bac_id number(3) not null,
version_id number(3) not null,
log_mode_id number(3) not null,
db_id number(3) not null,
env_id number(3) not null,
admin_conn varchar2(32) null,
constraint owm_system_pk primary key (db_id, env_id)
);Everything works as expected. The (correct) SQL sent in this case is:
update
"WEBMON"."OWM_SYSTEM"
set
"SECONDARY_DBA_ID" = :DML_BV0001,
"DB_ID" = :DML_BV0002,
"ENV_ID" = :DML_BV0003,
"HOST_ID" = :DML_BV0004,
"PORT" = :DML_BV0005,
"SID" = replace(:DML_BV0006,'%null%',null),
"ADMIN_USER" = replace(:DML_BV0007,'%null%',null),
"ADMIN_AUTH" = replace(:DML_BV0008,'%null%',null),
"ADMIN_CONN" = replace(:DML_BV0009,'%null%',null),
"VERSION_ID" = :DML_BV0010,
"LOG_MODE_ID" = :DML_BV0011,
"TIER_ID" = :DML_BV0012,
"PRIMARY_DBA_ID" = :DML_BV0013,
"PRIMARY_BAC_ID" = :DML_BV0014,
"SECONDARY_BAC_ID" = :DML_BV0015
where
"DB_ID" = :p_rowid
and
"ENV_ID" = :p_rowid2The "real" system in question has a fairly large number of single table hash clusters. I'm leary of continuing my explorations if there is a problem with using single table hash clusters. On the other hand, I'm quite open to the idea that I've done something wrong!
Any pointers? Is there anyway to change the SQL that is being generated when using the single table hash cluster? More information needed?
Thanks,
Mark

Mark,
Can't help with the hash table problem but as a method of dealing with it you could just make a procedure to manage the table.
Pass the value of :REQUEST (matches value of button) in and you'll be able to modify the tables.
procedure manage_owm_system (p_request varchar2,db_id number ...)is
begin
case p_request
when 'CREATE' then
insert
into ....
when 'SAVE' then
update .....
else
raise_application_error(-20001,'Unkown request');
end case;
end;
put that in a plsql reqion after submit
begin
manage_owm_system(p_request=>:REQUEST,p_dbid=>:P1_DBID .......);
end;
You need to create something similar , with out parameters, to populate the items when the pags loads.
Chris

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

How to read data from a CLUSTER STRUCTURE not cluster table.

Hi,
how to read data from a CLUSTER STRUCTURE not cluster table.
regards,
Usha.

Hello,
A structre doesnt contain data.. so u cannot read from it. U need to find out table of that structure and read data from it.
Regards,
Mansi.

How to Pull Data From CRT table PCL2 Cluster

Hi,
I want to show a Report, below is the Fields in the Report
Descripton----
Table Name
Total Current Month Salary----
CRT table PCL2 cluster
monthly member contribution-----CRT table PCL2 cluster
Net difference in Pay----
CRT table PCL2 cluster
How to get the Data from the CRT table PCL2 cluster in BW
is there any procedure to get the payroll data in BW?
I think CRT table is a internal Table.
any good idea's will be appricated...
Thanks
Priya

Hi,
check whether is it populating when u call
Function Module - PYX X_READ_PAYROLL_RESULT .
If not Use this Marcro.
RP-IMP-C2-IN.
Call this macro and check EPF[ ].This marco will populate both RT and EPF.
Check transaction - PC00_M40_ EPF
Cheers,
Manoj.

Change log in HR (Table PCL4 Cluster LA)

Hi @ all,
when infotype logging is activated changes made in infotypes are logged into table PCL4 cluster LA.
We have the following problem:
HR masterdata is stored into our system from an external system via ALE. But the problem is that no change logs are written. But we absolutely need this information!!!
Now I have coded a RFC function module which reads the log data from the external system. This also works fine. But how do I have to store the data into our PCL4(LA)???

nope - I didn't try this because I don't know about the data which is needed to store the change log correct.
Other question: I've found the function module "HR_INFOTYPE_LOG_CREATE" which seems to do what I want. But the problem is that there is no documentation available. The FM has four table parameters - does anyone how how to fill them? Has anyone used this FM? It is not used within standard programs - the "where used" function does not report any hits.
Thx in advance

How to find which transparent tables compose cluster tableuFF1AKONV

How to find which transparent tables compose cluster table：KONV

Hi,
Welcome to SDN.
Try doing this ....
1). Goto se12 and display the table BSEG
2). Click on the Delivery & Maintenanace tab
3). Double click on the Pool/Cluster field
4). On the next screen do a where used list
You will find all the related tables.
Regards,
Amit
Reward all helpful replies.

Cluster/pool table

How to see the names of the table which are incorporated in a cluster/pool table.
e.g: tab1 is a cluster ,and tab2 is a table which is incorporated in tab1 .
Then how to find out the other tables within tab1 cluster

oops ... seems to be the wrong forum for this question !
regards,
the oracle reports team

Generic extractors on pool table and Cluster tables

Good Afternoon all,
Can we create generic extractors on Cluster or pool Table. If yes Let me know how?
I am trying to create a Generic Extractor on BSEC Table but it is not allowing me to do this. It throws error that"Extraction from pool tables and cluster tables is not permitted"
Kindly guide me on this
Thanks,
Vaishali.

Hi
you cannot do generic extraction directly on pooled or cluster tables.
You can create a function module, then you can create a Generic Data source based on this..
Hope it helps,
Thanks,
Teja
Edited by: Teja badugu on Apr 15, 2008 12:24 PM

Regarding table pool/cluster

Hi,
can you please discribe me the the process by which we can find
how many pool/cluster table is attached to perticuler table pool/cluster.
thanks.

hi jony ,
try this
DATA : BEGIN OF IT_TABLES OCCURS 0,
 TABNAME LIKE DD02L-TABNAME,
 END OF IT_TABLES.
 SELECT TABNAME
 FROM DD02L
 INTO IT_TABLEs
 WHERE SQLTAB EQ <CLUSTER/POOL NAME>.
Eg :
 SELECT TABNAME
 FROM DD02L
 INTO IT_TABLEs
 WHERE SQLTAB EQ 'AABLG'.

Synchronize Table Across 2 RAC Clusters?

Is there any way to synchronize a table across 2 RAC clusters? We have 2 RAC clusters setup. Each RAC cluster is setup in its own regional operation center. Not only does it provide us with load balancing capabilities, it also provides us with failover in the event that a regional operations center fails. Depending upon where the application is hosted determines which RAC cluster the application needs to point to. So we would like to synchronize a table that exists on both of the RAC clusters so that in the event of a failover the user information is available on the other RAC cluster.
Any information would be greatly appreciated.

What you are talking about is called advanced replication: (http://download.oracle.com/docs/cd/B14117_01/server.101/b10732/repoverv.htm#REPLN001). I believe RAC offers geographically dispersed clustering as well though. Why not run one cluster but maintain your separate locations?

Re: cluster table & table cluster & hr clusters

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