ABAP Select data from SAP table ATPC_EKUB_1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ATPC_EKUB_1 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 ATPC_EKUB_1. 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 ATPC_EKUB_1 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_ATPC_EKUB_1 TYPE STANDARD TABLE OF ATPC_EKUB_1,
      WA_ATPC_EKUB_1 TYPE ATPC_EKUB_1,
      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: <ATPC_EKUB_1> TYPE ATPC_EKUB_1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_ATPC_EKUB_1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM ATPC_EKUB_1
  INTO TABLE IT_ATPC_EKUB_1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ATPC_EKUB_1
*  INTO TABLE @DATA(IT_ATPC_EKUB_12).
*--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_ATPC_EKUB_1 INDEX 1 INTO DATA(WA_ATPC_EKUB_12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ATPC_EKUB_1 ASSIGNING <ATPC_EKUB_1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ATPC_EKUB_1>-CLIENT = 1.
<ATPC_EKUB_1>-EBELN = 1.
<ATPC_EKUB_1>-EBELP = 1.
<ATPC_EKUB_1>-ETENR = 1.
<ATPC_EKUB_1>-BSTYP = 1.

ENDLOOP.

LOOP AT IT_ATPC_EKUB_1 INTO WA_ATPC_EKUB_1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ATPC_EKUB_1-MANDT, sy-vline,
  WA_ATPC_EKUB_1-MATNR, sy-vline,
  WA_ATPC_EKUB_1-WERKS, sy-vline,
  WA_ATPC_EKUB_1-RESLO, sy-vline,
  WA_ATPC_EKUB_1-CHARG, sy-vline,
  WA_ATPC_EKUB_1-SGT_RCAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ATPC_EKUB_1 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_ATPC_EKUB_1 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_ATPC_EKUB_1 INTO WA_ATPC_EKUB_1.


*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 EBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ATPC_EKUB_1-EBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ATPC_EKUB_1-EBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_ATPC_EKUB_1-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ATPC_EKUB_1-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EMLIF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ATPC_EKUB_1-EMLIF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ATPC_EKUB_1-EMLIF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ATPC_EKUB_1-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ATPC_EKUB_1-MEINS.
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_ATPC_EKUB_1_STR, 
CLIENT TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
ETENR TYPE STRING,
BSTYP TYPE STRING,
MANDT TYPE STRING,
MATNR TYPE STRING,
WERKS TYPE STRING,
RESLO TYPE STRING,
CHARG TYPE STRING,
SGT_RCAT TYPE STRING,
SOBKZ TYPE STRING,
LBLKZ TYPE STRING,
EMLIF TYPE STRING,
VBELN TYPE STRING,
VBELP TYPE STRING,
PS_PSP_PNR TYPE STRING,
ATPDATE TYPE STRING,
EINDT TYPE STRING,
PLIFZ TYPE STRING,
REQQTY TYPE STRING,
CNFQTY TYPE STRING,
EWERK TYPE STRING,
FIXMG TYPE STRING,
RETPO TYPE STRING,
MEINS TYPE STRING,
UMREZ TYPE STRING,
UMREN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ATPC_EKUB_1_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_ATPC_EKUB_1_STR-CLIENT sy-vline 
WA_ATPC_EKUB_1_STR-EBELN sy-vline 
WA_ATPC_EKUB_1_STR-EBELP sy-vline 
WA_ATPC_EKUB_1_STR-ETENR sy-vline 
WA_ATPC_EKUB_1_STR-BSTYP sy-vline 
WA_ATPC_EKUB_1_STR-MANDT sy-vline 
WA_ATPC_EKUB_1_STR-MATNR sy-vline 
WA_ATPC_EKUB_1_STR-WERKS sy-vline 
WA_ATPC_EKUB_1_STR-RESLO sy-vline 
WA_ATPC_EKUB_1_STR-CHARG sy-vline 
WA_ATPC_EKUB_1_STR-SGT_RCAT sy-vline 
WA_ATPC_EKUB_1_STR-SOBKZ sy-vline 
WA_ATPC_EKUB_1_STR-LBLKZ sy-vline 
WA_ATPC_EKUB_1_STR-EMLIF sy-vline 
WA_ATPC_EKUB_1_STR-VBELN sy-vline 
WA_ATPC_EKUB_1_STR-VBELP sy-vline 
WA_ATPC_EKUB_1_STR-PS_PSP_PNR sy-vline 
WA_ATPC_EKUB_1_STR-ATPDATE sy-vline 
WA_ATPC_EKUB_1_STR-EINDT sy-vline 
WA_ATPC_EKUB_1_STR-PLIFZ sy-vline 
WA_ATPC_EKUB_1_STR-REQQTY sy-vline 
WA_ATPC_EKUB_1_STR-CNFQTY sy-vline 
WA_ATPC_EKUB_1_STR-EWERK sy-vline 
WA_ATPC_EKUB_1_STR-FIXMG sy-vline 
WA_ATPC_EKUB_1_STR-RETPO sy-vline 
WA_ATPC_EKUB_1_STR-MEINS sy-vline 
WA_ATPC_EKUB_1_STR-UMREZ sy-vline 
WA_ATPC_EKUB_1_STR-UMREN sy-vline      INTO ld_text SEPARATED BY SPACE.

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