ABAP Select data from SAP table ATPC_RESB into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP ATPC_RESB 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_RESB. 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_RESB 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_RESB TYPE STANDARD TABLE OF ATPC_RESB,
      WA_ATPC_RESB TYPE ATPC_RESB,
      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_RESB> TYPE ATPC_RESB.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ATPC_RESB
*  INTO TABLE @DATA(IT_ATPC_RESB2).
*--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_RESB INDEX 1 INTO DATA(WA_ATPC_RESB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ATPC_RESB>-MANDT = 1.
<ATPC_RESB>-DELNR = 1.
<ATPC_RESB>-DELPS = 1.
<ATPC_RESB>-ATPCAT = 1.
<ATPC_RESB>-SORT1 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ATPC_RESB-SORT2, sy-vline,
  WA_ATPC_RESB-MATNR, sy-vline,
  WA_ATPC_RESB-WERKS, sy-vline,
  WA_ATPC_RESB-LGORT, sy-vline,
  WA_ATPC_RESB-CHARG, sy-vline,
  WA_ATPC_RESB-SGT_RCAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ATPC_RESB 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_RESB 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_RESB INTO WA_ATPC_RESB.


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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field DEL12
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ATPC_RESB-DEL12
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ATPC_RESB-DEL12.
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_RESB_STR, 
MANDT TYPE STRING,
DELNR TYPE STRING,
DELPS TYPE STRING,
ATPCAT TYPE STRING,
SORT1 TYPE STRING,
SORT2 TYPE STRING,
MATNR TYPE STRING,
WERKS TYPE STRING,
LGORT TYPE STRING,
CHARG TYPE STRING,
SGT_RCAT TYPE STRING,
SGT_SCAT TYPE STRING,
SOBKZ TYPE STRING,
SSKEY TYPE STRING,
SSKEY_EXT TYPE STRING,
KDAUF TYPE STRING,
KDPOS TYPE STRING,
PSPEL TYPE STRING,
LIFNR TYPE STRING,
ATPDATE TYPE STRING,
SHKZG TYPE STRING,
BDMNG TYPE STRING,
ENMNG TYPE STRING,
VMENG TYPE STRING,
BAUGR TYPE STRING,
DEL12 TYPE STRING,
BDART TYPE STRING,
XWAOK TYPE STRING,
UMWRK TYPE STRING,
UMLGO TYPE STRING,
UMSOK TYPE STRING,
SBTER TYPE STRING,
VERTI TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ATPC_RESB_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_RESB_STR-MANDT sy-vline 
WA_ATPC_RESB_STR-DELNR sy-vline 
WA_ATPC_RESB_STR-DELPS sy-vline 
WA_ATPC_RESB_STR-ATPCAT sy-vline 
WA_ATPC_RESB_STR-SORT1 sy-vline 
WA_ATPC_RESB_STR-SORT2 sy-vline 
WA_ATPC_RESB_STR-MATNR sy-vline 
WA_ATPC_RESB_STR-WERKS sy-vline 
WA_ATPC_RESB_STR-LGORT sy-vline 
WA_ATPC_RESB_STR-CHARG sy-vline 
WA_ATPC_RESB_STR-SGT_RCAT sy-vline 
WA_ATPC_RESB_STR-SGT_SCAT sy-vline 
WA_ATPC_RESB_STR-SOBKZ sy-vline 
WA_ATPC_RESB_STR-SSKEY sy-vline 
WA_ATPC_RESB_STR-SSKEY_EXT sy-vline 
WA_ATPC_RESB_STR-KDAUF sy-vline 
WA_ATPC_RESB_STR-KDPOS sy-vline 
WA_ATPC_RESB_STR-PSPEL sy-vline 
WA_ATPC_RESB_STR-LIFNR sy-vline 
WA_ATPC_RESB_STR-ATPDATE sy-vline 
WA_ATPC_RESB_STR-SHKZG sy-vline 
WA_ATPC_RESB_STR-BDMNG sy-vline 
WA_ATPC_RESB_STR-ENMNG sy-vline 
WA_ATPC_RESB_STR-VMENG sy-vline 
WA_ATPC_RESB_STR-BAUGR sy-vline 
WA_ATPC_RESB_STR-DEL12 sy-vline 
WA_ATPC_RESB_STR-BDART sy-vline 
WA_ATPC_RESB_STR-XWAOK sy-vline 
WA_ATPC_RESB_STR-UMWRK sy-vline 
WA_ATPC_RESB_STR-UMLGO sy-vline 
WA_ATPC_RESB_STR-UMSOK sy-vline 
WA_ATPC_RESB_STR-SBTER sy-vline 
WA_ATPC_RESB_STR-VERTI sy-vline      INTO ld_text SEPARATED BY SPACE.

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