ABAP Select data from SAP table ATPME into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ATPME
*  INTO TABLE @DATA(IT_ATPME2).
*--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_ATPME INDEX 1 INTO DATA(WA_ATPME2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ATPME>-DELNR = 1.
<ATPME>-DELPS = 1.
<ATPME>-DELET = 1.
<ATPME>-DEL12 = 1.
<ATPME>-KUNNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ATPME-KDAUF, sy-vline,
  WA_ATPME-KDPOS, sy-vline,
  WA_ATPME-PSPEL, sy-vline,
  WA_ATPME-SOBKZ, sy-vline,
  WA_ATPME-LGORT, sy-vline,
  WA_ATPME-CHARG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ATPME 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_ATPME 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_ATPME INTO WA_ATPME.


*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 KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ATPME-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ATPME-KUNNR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ABPSP, internal->external for field PSPEL
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_ATPME-PSPEL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ATPME-PSPEL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field BAUGR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_ATPME-BAUGR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ATPME-BAUGR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field SMATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_ATPME-SMATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ATPME-SMATNR.
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_ATPME_STR, 
DELNR TYPE STRING,
DELPS TYPE STRING,
DELET TYPE STRING,
DEL12 TYPE STRING,
KUNNR TYPE STRING,
KDAUF TYPE STRING,
KDPOS TYPE STRING,
PSPEL TYPE STRING,
SOBKZ TYPE STRING,
LGORT TYPE STRING,
CHARG TYPE STRING,
DELKZ TYPE STRING,
SORT1 TYPE STRING,
ATPIF TYPE STRING,
SGT_RCAT TYPE STRING,
SGT_SCAT TYPE STRING,
DAT00 TYPE STRING,
TAG00 TYPE STRING,
MNG01 TYPE STRING,
MNG02 TYPE STRING,
BAUGR TYPE STRING,
EWERK TYPE STRING,
SMATNR TYPE STRING,
SWERKS TYPE STRING,
SBERID TYPE STRING,
FSH_ALLOC_QTY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ATPME_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_ATPME_STR-DELNR sy-vline 
WA_ATPME_STR-DELPS sy-vline 
WA_ATPME_STR-DELET sy-vline 
WA_ATPME_STR-DEL12 sy-vline 
WA_ATPME_STR-KUNNR sy-vline 
WA_ATPME_STR-KDAUF sy-vline 
WA_ATPME_STR-KDPOS sy-vline 
WA_ATPME_STR-PSPEL sy-vline 
WA_ATPME_STR-SOBKZ sy-vline 
WA_ATPME_STR-LGORT sy-vline 
WA_ATPME_STR-CHARG sy-vline 
WA_ATPME_STR-DELKZ sy-vline 
WA_ATPME_STR-SORT1 sy-vline 
WA_ATPME_STR-ATPIF sy-vline 
WA_ATPME_STR-SGT_RCAT sy-vline 
WA_ATPME_STR-SGT_SCAT sy-vline 
WA_ATPME_STR-DAT00 sy-vline 
WA_ATPME_STR-TAG00 sy-vline 
WA_ATPME_STR-MNG01 sy-vline 
WA_ATPME_STR-MNG02 sy-vline 
WA_ATPME_STR-BAUGR sy-vline 
WA_ATPME_STR-EWERK sy-vline 
WA_ATPME_STR-SMATNR sy-vline 
WA_ATPME_STR-SWERKS sy-vline 
WA_ATPME_STR-SBERID sy-vline 
WA_ATPME_STR-FSH_ALLOC_QTY sy-vline      INTO ld_text SEPARATED BY SPACE.

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