ABAP Select data from SAP table PS2502 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PS2502 table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to PS2502. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the PS2502 table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_PS2502 TYPE STANDARD TABLE OF PS2502,
      WA_PS2502 TYPE PS2502,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <PS2502> TYPE PS2502.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PS2502.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PS2502
  INTO TABLE IT_PS2502.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PS2502
*  INTO TABLE @DATA(IT_PS25022).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_PS2502 INDEX 1 INTO DATA(WA_PS25022).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PS2502 ASSIGNING <PS2502>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PS2502>-ORG_UNIT_WP = 1.
<PS2502>-JOB_WP = 1.
<PS2502>-POSITION_WP = 1.
<PS2502>-PERS_AREA_WP = 1.
<PS2502>-PERS_SUBAREA_WP = 1.

ENDLOOP.

LOOP AT IT_PS2502 INTO WA_PS2502.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PS2502-EMPL_GROUP_WP, sy-vline,
  WA_PS2502-EMPL_SUBGROUP_WP, sy-vline,
  WA_PS2502-CO_AREA_WP, sy-vline,
  WA_PS2502-COSTCENTER_WP, sy-vline,
  WA_PS2502-COMP_CODE_WP, sy-vline,
  WA_PS2502-BUS_AREA_WP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PS2502 you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_PS2502 TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_PS2502 INTO WA_PS2502.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.

*Conversion exit ALPHA, internal->external for field COSTCENTER_WP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PS2502-COSTCENTER_WP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PS2502-COSTCENTER_WP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field GRANT_NBR_WP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PS2502-GRANT_NBR_WP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PS2502-GRANT_NBR_WP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PS2502-UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PS2502-UNIT.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_PS2502_STR, 
ORG_UNIT_WP TYPE STRING,
JOB_WP TYPE STRING,
POSITION_WP TYPE STRING,
PERS_AREA_WP TYPE STRING,
PERS_SUBAREA_WP TYPE STRING,
EMPL_GROUP_WP TYPE STRING,
EMPL_SUBGROUP_WP TYPE STRING,
CO_AREA_WP TYPE STRING,
COSTCENTER_WP TYPE STRING,
COMP_CODE_WP TYPE STRING,
BUS_AREA_WP TYPE STRING,
TIME_STATUS_WP TYPE STRING,
FM_AREA_WP TYPE STRING,
FUND_WP TYPE STRING,
FUNC_AREA_WP TYPE STRING,
GRANT_NBR_WP TYPE STRING,
FISTL_WP TYPE STRING,
BUDGET_PD_WP TYPE STRING,
QUOTA TYPE STRING,
ENTITLE TYPE STRING,
TAKEN TYPE STRING,
REPAYED TYPE STRING,
ACCRUED TYPE STRING,
LAPSED TYPE STRING,
UNIT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PS2502_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_PS2502_STR-ORG_UNIT_WP sy-vline 
WA_PS2502_STR-JOB_WP sy-vline 
WA_PS2502_STR-POSITION_WP sy-vline 
WA_PS2502_STR-PERS_AREA_WP sy-vline 
WA_PS2502_STR-PERS_SUBAREA_WP sy-vline 
WA_PS2502_STR-EMPL_GROUP_WP sy-vline 
WA_PS2502_STR-EMPL_SUBGROUP_WP sy-vline 
WA_PS2502_STR-CO_AREA_WP sy-vline 
WA_PS2502_STR-COSTCENTER_WP sy-vline 
WA_PS2502_STR-COMP_CODE_WP sy-vline 
WA_PS2502_STR-BUS_AREA_WP sy-vline 
WA_PS2502_STR-TIME_STATUS_WP sy-vline 
WA_PS2502_STR-FM_AREA_WP sy-vline 
WA_PS2502_STR-FUND_WP sy-vline 
WA_PS2502_STR-FUNC_AREA_WP sy-vline 
WA_PS2502_STR-GRANT_NBR_WP sy-vline 
WA_PS2502_STR-FISTL_WP sy-vline 
WA_PS2502_STR-BUDGET_PD_WP sy-vline 
WA_PS2502_STR-QUOTA sy-vline 
WA_PS2502_STR-ENTITLE sy-vline 
WA_PS2502_STR-TAKEN sy-vline 
WA_PS2502_STR-REPAYED sy-vline 
WA_PS2502_STR-ACCRUED sy-vline 
WA_PS2502_STR-LAPSED sy-vline 
WA_PS2502_STR-UNIT sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.