ABAP Select data from SAP table P19ES_COMP into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P19ES_COMP 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 P19ES_COMP. 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 P19ES_COMP 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_P19ES_COMP TYPE STANDARD TABLE OF P19ES_COMP,
      WA_P19ES_COMP TYPE P19ES_COMP,
      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: <P19ES_COMP> TYPE P19ES_COMP.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P19ES_COMP.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P19ES_COMP
  INTO TABLE IT_P19ES_COMP.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P19ES_COMP
*  INTO TABLE @DATA(IT_P19ES_COMP2).
*--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_P19ES_COMP INDEX 1 INTO DATA(WA_P19ES_COMP2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P19ES_COMP ASSIGNING <P19ES_COMP>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P19ES_COMP>-BUKRS = 1.
<P19ES_COMP>-COTXT = 1.
<P19ES_COMP>-COADR = 1.
<P19ES_COMP>-COLOC = 1.
<P19ES_COMP>-CODP = 1.

ENDLOOP.

LOOP AT IT_P19ES_COMP INTO WA_P19ES_COMP.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P19ES_COMP-POLOC, sy-vline,
  WA_P19ES_COMP-TELNR, sy-vline,
  WA_P19ES_COMP-FAXNR, sy-vline,
  WA_P19ES_COMP-EMAIL, sy-vline,
  WA_P19ES_COMP-DICOD, sy-vline,
  WA_P19ES_COMP-COCOD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P19ES_COMP 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_P19ES_COMP 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_P19ES_COMP INTO WA_P19ES_COMP.


*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 PABRJ
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_P19ES_COMP-PABRJ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P19ES_COMP-PABRJ.
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_P19ES_COMP_STR, 
BUKRS TYPE STRING,
COTXT TYPE STRING,
COADR TYPE STRING,
COLOC TYPE STRING,
CODP TYPE STRING,
POLOC TYPE STRING,
TELNR TYPE STRING,
FAXNR TYPE STRING,
EMAIL TYPE STRING,
DICOD TYPE STRING,
COCOD TYPE STRING,
PACOD TYPE STRING,
TACD1 TYPE STRING,
TACD2 TYPE STRING,
TACD3 TYPE STRING,
EACOD TYPE STRING,
LNCOD TYPE STRING,
YCONS TYPE STRING,
COUNT TYPE STRING,
CAPTL TYPE STRING,
FGNCP TYPE STRING,
PRVCP TYPE STRING,
PUBCP TYPE STRING,
SALES TYPE STRING,
WERKS TYPE STRING,
BTRTL TYPE STRING,
SATXT TYPE STRING,
SAADR TYPE STRING,
SALOC TYPE STRING,
CODP2 TYPE STRING,
POLOC2 TYPE STRING,
TELNR2 TYPE STRING,
FAXNR2 TYPE STRING,
EMAIL2 TYPE STRING,
DICOD2 TYPE STRING,
COCOD2 TYPE STRING,
PACOD2 TYPE STRING,
SSCON TYPE STRING,
SAACT TYPE STRING,
COUNT2 TYPE STRING,
PSCOD TYPE STRING,
PSTXT TYPE STRING,
PSDAT TYPE STRING,
BTENR TYPE STRING,
BTEDT TYPE STRING,
NPC TYPE STRING,
SANUM TYPE STRING,
PABRJ TYPE STRING,
CURRENCY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P19ES_COMP_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_P19ES_COMP_STR-BUKRS sy-vline 
WA_P19ES_COMP_STR-COTXT sy-vline 
WA_P19ES_COMP_STR-COADR sy-vline 
WA_P19ES_COMP_STR-COLOC sy-vline 
WA_P19ES_COMP_STR-CODP sy-vline 
WA_P19ES_COMP_STR-POLOC sy-vline 
WA_P19ES_COMP_STR-TELNR sy-vline 
WA_P19ES_COMP_STR-FAXNR sy-vline 
WA_P19ES_COMP_STR-EMAIL sy-vline 
WA_P19ES_COMP_STR-DICOD sy-vline 
WA_P19ES_COMP_STR-COCOD sy-vline 
WA_P19ES_COMP_STR-PACOD sy-vline 
WA_P19ES_COMP_STR-TACD1 sy-vline 
WA_P19ES_COMP_STR-TACD2 sy-vline 
WA_P19ES_COMP_STR-TACD3 sy-vline 
WA_P19ES_COMP_STR-EACOD sy-vline 
WA_P19ES_COMP_STR-LNCOD sy-vline 
WA_P19ES_COMP_STR-YCONS sy-vline 
WA_P19ES_COMP_STR-COUNT sy-vline 
WA_P19ES_COMP_STR-CAPTL sy-vline 
WA_P19ES_COMP_STR-FGNCP sy-vline 
WA_P19ES_COMP_STR-PRVCP sy-vline 
WA_P19ES_COMP_STR-PUBCP sy-vline 
WA_P19ES_COMP_STR-SALES sy-vline 
WA_P19ES_COMP_STR-WERKS sy-vline 
WA_P19ES_COMP_STR-BTRTL sy-vline 
WA_P19ES_COMP_STR-SATXT sy-vline 
WA_P19ES_COMP_STR-SAADR sy-vline 
WA_P19ES_COMP_STR-SALOC sy-vline 
WA_P19ES_COMP_STR-CODP2 sy-vline 
WA_P19ES_COMP_STR-POLOC2 sy-vline 
WA_P19ES_COMP_STR-TELNR2 sy-vline 
WA_P19ES_COMP_STR-FAXNR2 sy-vline 
WA_P19ES_COMP_STR-EMAIL2 sy-vline 
WA_P19ES_COMP_STR-DICOD2 sy-vline 
WA_P19ES_COMP_STR-COCOD2 sy-vline 
WA_P19ES_COMP_STR-PACOD2 sy-vline 
WA_P19ES_COMP_STR-SSCON sy-vline 
WA_P19ES_COMP_STR-SAACT sy-vline 
WA_P19ES_COMP_STR-COUNT2 sy-vline 
WA_P19ES_COMP_STR-PSCOD sy-vline 
WA_P19ES_COMP_STR-PSTXT sy-vline 
WA_P19ES_COMP_STR-PSDAT sy-vline 
WA_P19ES_COMP_STR-BTENR sy-vline 
WA_P19ES_COMP_STR-BTEDT sy-vline 
WA_P19ES_COMP_STR-NPC sy-vline 
WA_P19ES_COMP_STR-SANUM sy-vline 
WA_P19ES_COMP_STR-PABRJ sy-vline 
WA_P19ES_COMP_STR-CURRENCY sy-vline      INTO ld_text SEPARATED BY SPACE.

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