ABAP Select data from SAP table PA0794 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PA0794 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 PA0794. 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 PA0794 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_PA0794 TYPE STANDARD TABLE OF PA0794,
      WA_PA0794 TYPE PA0794,
      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: <PA0794> TYPE PA0794.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PA0794.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PA0794
  INTO TABLE IT_PA0794.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PA0794
*  INTO TABLE @DATA(IT_PA07942).
*--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_PA0794 INDEX 1 INTO DATA(WA_PA07942).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PA0794 ASSIGNING <PA0794>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PA0794>-MANDT = 1.
<PA0794>-PERNR = 1.
<PA0794>-SUBTY = 1.
<PA0794>-OBJPS = 1.
<PA0794>-SPRPS = 1.

ENDLOOP.

LOOP AT IT_PA0794 INTO WA_PA0794.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PA0794-ENDDA, sy-vline,
  WA_PA0794-BEGDA, sy-vline,
  WA_PA0794-SEQNR, sy-vline,
  WA_PA0794-AEDTM, sy-vline,
  WA_PA0794-UNAME, sy-vline,
  WA_PA0794-HISTO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PA0794 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_PA0794 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_PA0794 INTO WA_PA0794.


*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 PDATE, internal->external for field GEBV0
CALL FUNCTION 'CONVERSION_EXIT_PDATE_OUTPUT'
  EXPORTING
    input =                      WA_PA0794-GEBV0
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PA0794-GEBV0.
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_PA0794_STR, 
MANDT TYPE STRING,
PERNR TYPE STRING,
SUBTY TYPE STRING,
OBJPS TYPE STRING,
SPRPS TYPE STRING,
ENDDA TYPE STRING,
BEGDA TYPE STRING,
SEQNR TYPE STRING,
AEDTM TYPE STRING,
UNAME TYPE STRING,
HISTO TYPE STRING,
ITXEX TYPE STRING,
REFEX TYPE STRING,
ORDEX TYPE STRING,
ITBLD TYPE STRING,
PREAS TYPE STRING,
FLAG1 TYPE STRING,
FLAG2 TYPE STRING,
FLAG3 TYPE STRING,
FLAG4 TYPE STRING,
RESE1 TYPE STRING,
RESE2 TYPE STRING,
GRPVL TYPE STRING,
SART0 TYPE STRING,
STATU TYPE STRING,
ADAT0 TYPE STRING,
RDAT0 TYPE STRING,
PART0 TYPE STRING,
ABGP0 TYPE STRING,
ABTP0 TYPE STRING,
TDAT0 TYPE STRING,
KZPF0 TYPE STRING,
KZAZ0 TYPE STRING,
AUSVLV0 TYPE STRING,
AUSVGV0 TYPE STRING,
GEBV0 TYPE STRING,
FANV0 TYPE STRING,
VONV0 TYPE STRING,
FASW0 TYPE STRING,
VOSW0 TYPE STRING,
AKSW0 TYPE STRING,
GESW0 TYPE STRING,
STSW0 TYPE STRING,
KFSW0 TYPE STRING,
PZSW0 TYPE STRING,
WOSW0 TYPE STRING,
WDAT0 TYPE STRING,
PAEC0 TYPE STRING,
AGCP0 TYPE STRING,
ANTP0 TYPE STRING,
PERNRV0 TYPE STRING,
WFSW0 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PA0794_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_PA0794_STR-MANDT sy-vline 
WA_PA0794_STR-PERNR sy-vline 
WA_PA0794_STR-SUBTY sy-vline 
WA_PA0794_STR-OBJPS sy-vline 
WA_PA0794_STR-SPRPS sy-vline 
WA_PA0794_STR-ENDDA sy-vline 
WA_PA0794_STR-BEGDA sy-vline 
WA_PA0794_STR-SEQNR sy-vline 
WA_PA0794_STR-AEDTM sy-vline 
WA_PA0794_STR-UNAME sy-vline 
WA_PA0794_STR-HISTO sy-vline 
WA_PA0794_STR-ITXEX sy-vline 
WA_PA0794_STR-REFEX sy-vline 
WA_PA0794_STR-ORDEX sy-vline 
WA_PA0794_STR-ITBLD sy-vline 
WA_PA0794_STR-PREAS sy-vline 
WA_PA0794_STR-FLAG1 sy-vline 
WA_PA0794_STR-FLAG2 sy-vline 
WA_PA0794_STR-FLAG3 sy-vline 
WA_PA0794_STR-FLAG4 sy-vline 
WA_PA0794_STR-RESE1 sy-vline 
WA_PA0794_STR-RESE2 sy-vline 
WA_PA0794_STR-GRPVL sy-vline 
WA_PA0794_STR-SART0 sy-vline 
WA_PA0794_STR-STATU sy-vline 
WA_PA0794_STR-ADAT0 sy-vline 
WA_PA0794_STR-RDAT0 sy-vline 
WA_PA0794_STR-PART0 sy-vline 
WA_PA0794_STR-ABGP0 sy-vline 
WA_PA0794_STR-ABTP0 sy-vline 
WA_PA0794_STR-TDAT0 sy-vline 
WA_PA0794_STR-KZPF0 sy-vline 
WA_PA0794_STR-KZAZ0 sy-vline 
WA_PA0794_STR-AUSVLV0 sy-vline 
WA_PA0794_STR-AUSVGV0 sy-vline 
WA_PA0794_STR-GEBV0 sy-vline 
WA_PA0794_STR-FANV0 sy-vline 
WA_PA0794_STR-VONV0 sy-vline 
WA_PA0794_STR-FASW0 sy-vline 
WA_PA0794_STR-VOSW0 sy-vline 
WA_PA0794_STR-AKSW0 sy-vline 
WA_PA0794_STR-GESW0 sy-vline 
WA_PA0794_STR-STSW0 sy-vline 
WA_PA0794_STR-KFSW0 sy-vline 
WA_PA0794_STR-PZSW0 sy-vline 
WA_PA0794_STR-WOSW0 sy-vline 
WA_PA0794_STR-WDAT0 sy-vline 
WA_PA0794_STR-PAEC0 sy-vline 
WA_PA0794_STR-AGCP0 sy-vline 
WA_PA0794_STR-ANTP0 sy-vline 
WA_PA0794_STR-PERNRV0 sy-vline 
WA_PA0794_STR-WFSW0 sy-vline      INTO ld_text SEPARATED BY SPACE.

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