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Logical data bases are special programs used to read the data and make it available in the programs. Other than retrieving the data authorization checks are handled, can be able to retrieve data from multiple tables. Specify LDB in the program attributes and use the GET event to retrieve the data. One best use is there will be a default selection screen.
PNP, PNPCE, PAP, PCH …
You need to use LDB PNP to use the GET PERNR event, once GET PERNR event triggers all the Infotypes declared by using INFOTYPES statement will be fetched data to the respective internal tables. If you specify Infotypes by INFOTYPES statement then internal tables are created with Pnnnn structure.
Ex:- INFOTYPES: 0001, 0002, 0006.
Internal tables p0001, p0002, p0003 are created and can be used in the program.
If you use any of the LDBs, the program flow is as below
retrieve the data from internal tables to output internal tables
Display the data retrieved above.
From GET PERNR to END_OF_SELECTION ; it will loop with the employee numbers
selected from the selection screen.
SAPDBPNP and SAPDBPNPCE
Infotypes is special way to store the HR data rather than using standard tables.
Infotypes will have three structures PAKEY, PSHD1, PSnnnn [ nnnn is Infotype number]. PAKEY(Key fields) and PSHD1(Control Fields) is same for all the Infotypes. Fields in the PSnnnn structure depends on the Infotype uses, like 0000- Actions will the fields specific to action of an employee 0002-Personal Data will have fields specific to the personal data fields(name, DOB, etc..) of an employee.
PAKEY is the key field’s structure and it is same for all the PA Infotypes. It has different fields as below
PERNR – Employee Number
SUBTY – Subtypes are subdivisions of Infotypes.
OBJPS –The object identification indicator is used to differentiate records with the same
Infotype, subtype, lock indicator, valid from date, and valid to date. For example: Child number in Infotype 0021 Family Member/Dependents.
SPRPS – The lock indicator for HR master data can be used to lock and unlock data records. It can be used to guarantee double control, that is, at least two users are involved in writing an active data record to the database. One of the users creates a locked infotype record. Another user unlocks this record by activating it.
ENDDA – Valid to date
BEGDA – Valid from date
SEQNR –The sequential number differentiates Infotype records with the same key and the time constraint ’3′. Unlike the personnel object identification, it is automatically assigned by the system.
PSHD1 is another basic structure that is the same for all Personnel Administration Infotypes. It includes the date the record was changed (AEDTM), the name of the person making the change (UNAME), and information on whether the administrator created plain text for this infotype (ITXEX).
As all other modules uses standard SAP tables concept to store the data. HR module uses the new and different concept to store the data i.e., Infotypes. Data is scattered b/n Infotypes by depending above the type of data and this makes to easily access similar data of all employees at one stretch by minimizing the retrieval time. As HR data is totally time dependant and have more number records to save and retrieve for a particular purpose.
Go to PM01, enhance IT tab and provide the Infotype number for which you require to enhance, click on create all button(you can create individually structure, module pool program also). It will take you to the CI_nnnn structure, provide the fields you want to add – activate.
You can enhance all the Infotypes provide CI_nnnn is there in the structure.
PS Structures have basic data fields of an employee in every Infotype. These data fields will vary for every Infotype and included in respective Infotype to hold the data.
The basic Infotypes used for payroll are 0, 1, 3, 7, 8, 9, 580, 591, 45, 41, 57, 267 and others.
All the 2 series Infotypes.
All Infotypes 0000 to 0999
1000 to 1999 Infotypes
Macro is a set of reusable statements which can be used several times in programs.
PNP-SW-FOUND will be 1 if the macros rp_provide_from_last or first is successful else it will be initial.
Repetitive structure is same sequence for fields varying by numeric digits. We do have repetitive structure in IT 8 [Basic Pay] and IT 41[Date Specifications].
To retrieve the data from repetitive structures we use DO… VARYING command as below
DATA: BEGIN OF WAGETYPES,
LGA LIKE P0008-LGA01,
BET LIKE P0008-BET01,
ANZ LIKE P0008-ANZ01,
EIN LIKE P0008-EIN01,
OPK LIKE P0008-OPK01,
END OF WAGETYPES.
RP_PROVIDE_FROM_LAST P0008 SPACE PN-BEGDA PN-ENDDA.
DO 20 TIMES VARYING WAGETYPES
IF WAGETYPES-LGA IS INITIAL.
WRITE: / WAGETYPES-LGA, WAGETYPES-BET.
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