ABAP Select data from SAP table PMXDGE into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PMXDGE 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 PMXDGE. 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 PMXDGE 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_PMXDGE TYPE STANDARD TABLE OF PMXDGE,
      WA_PMXDGE TYPE PMXDGE,
      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: <PMXDGE> TYPE PMXDGE.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PMXDGE
*  INTO TABLE @DATA(IT_PMXDGE2).
*--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_PMXDGE INDEX 1 INTO DATA(WA_PMXDGE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PMXDGE>-REPAT = 1.
<PMXDGE>-BUKRS = 1.
<PMXDGE>-WERKS = 1.
<PMXDGE>-BTRTL = 1.
<PMXDGE>-RASOC = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PMXDGE-DOMIC, sy-vline,
  WA_PMXDGE-ACTIV, sy-vline,
  WA_PMXDGE-BEGDA, sy-vline,
  WA_PMXDGE-ENDDA, sy-vline,
  WA_PMXDGE-CLART, sy-vline,
  WA_PMXDGE-NFRAC, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PMXDGE 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_PMXDGE 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_PMXDGE INTO WA_PMXDGE.


*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 GJAHR, internal->external for field ANIO
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_PMXDGE-ANIO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMXDGE-ANIO.
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_PMXDGE_STR, 
REPAT TYPE STRING,
BUKRS TYPE STRING,
WERKS TYPE STRING,
BTRTL TYPE STRING,
RASOC TYPE STRING,
DOMIC TYPE STRING,
ACTIV TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
CLART TYPE STRING,
NFRAC TYPE STRING,
GRART TYPE STRING,
P_ANT TYPE STRING,
P_CAL TYPE STRING,
P_ACT TYPE STRING,
NCT TYPE STRING,
TDSIT TYPE STRING,
SPIPPT TYPE STRING,
NUMDEF TYPE STRING,
NUMTRP TYPE STRING,
REPLE TYPE STRING,
NREPLE TYPE STRING,
DETALLE TYPE STRING,
TDSIT_SS TYPE STRING,
TDSIT_SS_C TYPE STRING,
ANIO_INICIO TYPE STRING,
ANIO_TERM TYPE STRING,
ANIO TYPE STRING,
NCT_SS TYPE STRING,
NUMTRP_SS TYPE STRING,
NUMTRP_SS_C TYPE STRING,
NUMDEF_SS TYPE STRING,
NUMDEF_SS_C TYPE STRING,
DESA_OPER1 TYPE STRING,
DESA_OPER2 TYPE STRING,
DESA_OPER3 TYPE STRING,
SPIPPT_SS TYPE STRING,
SPIPPT_SS_C TYPE STRING,
DESA_RESUL TYPE STRING,
FACPR TYPE STRING,
PRMIN TYPE STRING,
TAB_DETALLE_EMP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PMXDGE_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_PMXDGE_STR-REPAT sy-vline 
WA_PMXDGE_STR-BUKRS sy-vline 
WA_PMXDGE_STR-WERKS sy-vline 
WA_PMXDGE_STR-BTRTL sy-vline 
WA_PMXDGE_STR-RASOC sy-vline 
WA_PMXDGE_STR-DOMIC sy-vline 
WA_PMXDGE_STR-ACTIV sy-vline 
WA_PMXDGE_STR-BEGDA sy-vline 
WA_PMXDGE_STR-ENDDA sy-vline 
WA_PMXDGE_STR-CLART sy-vline 
WA_PMXDGE_STR-NFRAC sy-vline 
WA_PMXDGE_STR-GRART sy-vline 
WA_PMXDGE_STR-P_ANT sy-vline 
WA_PMXDGE_STR-P_CAL sy-vline 
WA_PMXDGE_STR-P_ACT sy-vline 
WA_PMXDGE_STR-NCT sy-vline 
WA_PMXDGE_STR-TDSIT sy-vline 
WA_PMXDGE_STR-SPIPPT sy-vline 
WA_PMXDGE_STR-NUMDEF sy-vline 
WA_PMXDGE_STR-NUMTRP sy-vline 
WA_PMXDGE_STR-REPLE sy-vline 
WA_PMXDGE_STR-NREPLE sy-vline 
WA_PMXDGE_STR-DETALLE sy-vline 
WA_PMXDGE_STR-TDSIT_SS sy-vline 
WA_PMXDGE_STR-TDSIT_SS_C sy-vline 
WA_PMXDGE_STR-ANIO_INICIO sy-vline 
WA_PMXDGE_STR-ANIO_TERM sy-vline 
WA_PMXDGE_STR-ANIO sy-vline 
WA_PMXDGE_STR-NCT_SS sy-vline 
WA_PMXDGE_STR-NUMTRP_SS sy-vline 
WA_PMXDGE_STR-NUMTRP_SS_C sy-vline 
WA_PMXDGE_STR-NUMDEF_SS sy-vline 
WA_PMXDGE_STR-NUMDEF_SS_C sy-vline 
WA_PMXDGE_STR-DESA_OPER1 sy-vline 
WA_PMXDGE_STR-DESA_OPER2 sy-vline 
WA_PMXDGE_STR-DESA_OPER3 sy-vline 
WA_PMXDGE_STR-SPIPPT_SS sy-vline 
WA_PMXDGE_STR-SPIPPT_SS_C sy-vline 
WA_PMXDGE_STR-DESA_RESUL sy-vline 
WA_PMXDGE_STR-FACPR sy-vline 
WA_PMXDGE_STR-PRMIN sy-vline 
WA_PMXDGE_STR-TAB_DETALLE_EMP sy-vline      INTO ld_text SEPARATED BY SPACE.

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