ABAP Select data from SAP table ATPC_STO_10 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ATPC_STO_10 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_STO_10. 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_STO_10 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_STO_10 TYPE STANDARD TABLE OF ATPC_STO_10,
      WA_ATPC_STO_10 TYPE ATPC_STO_10,
      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_STO_10> TYPE ATPC_STO_10.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_ATPC_STO_10.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM ATPC_STO_10
  INTO TABLE IT_ATPC_STO_10.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ATPC_STO_10
*  INTO TABLE @DATA(IT_ATPC_STO_102).
*--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_STO_10 INDEX 1 INTO DATA(WA_ATPC_STO_102).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ATPC_STO_10 ASSIGNING <ATPC_STO_10>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ATPC_STO_10>-MANDT = 1.
<ATPC_STO_10>-MATNR = 1.
<ATPC_STO_10>-WERKS = 1.
<ATPC_STO_10>-SOBKZ = 1.
<ATPC_STO_10>-SSKEY = 1.

ENDLOOP.

LOOP AT IT_ATPC_STO_10 INTO WA_ATPC_STO_10.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ATPC_STO_10-SSKEY_EXT, sy-vline,
  WA_ATPC_STO_10-LGORT, sy-vline,
  WA_ATPC_STO_10-CHARG, sy-vline,
  WA_ATPC_STO_10-SGT_RCAT, sy-vline,
  WA_ATPC_STO_10-LIFNR, sy-vline,
  WA_ATPC_STO_10-RESMD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ATPC_STO_10 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_STO_10 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_STO_10 INTO WA_ATPC_STO_10.


*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_STO_10-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ATPC_STO_10-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SSKEY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ATPC_STO_10-SSKEY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ATPC_STO_10-SSKEY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ATPC_STO_10-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ATPC_STO_10-LIFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ATPC_STO_10-DELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ATPC_STO_10-DELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field BASE_UOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ATPC_STO_10-BASE_UOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ATPC_STO_10-BASE_UOM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field ORDER_UOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ATPC_STO_10-ORDER_UOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ATPC_STO_10-ORDER_UOM.
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_STO_10_STR, 
MANDT TYPE STRING,
MATNR TYPE STRING,
WERKS TYPE STRING,
SOBKZ TYPE STRING,
SSKEY TYPE STRING,
SSKEY_EXT TYPE STRING,
LGORT TYPE STRING,
CHARG TYPE STRING,
SGT_RCAT TYPE STRING,
LIFNR TYPE STRING,
RESMD TYPE STRING,
FIXMG TYPE STRING,
MTVFP TYPE STRING,
DELNR TYPE STRING,
DELPS TYPE STRING,
DELET TYPE STRING,
ATPCAT TYPE STRING,
BSTYP TYPE STRING,
BSART TYPE STRING,
MAT_AVAIL_DATE TYPE STRING,
MAT_AVAIL_TIME TYPE STRING,
OPENREQQTYINORDERUOM TYPE STRING,
OPENCNFQTYINORDERUOM TYPE STRING,
BASE_UOM TYPE STRING,
ORDER_UOM TYPE STRING,
ORDERTOBASEQUANTITYDNMNTR TYPE STRING,
ORDERTOBASEQUANTITYNMRTR TYPE STRING,
UNITOFMEASURENUMBEROFDECIMALS TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
VSBED TYPE STRING,
VSTEL TYPE STRING,
ROUTE TYPE STRING,
AULWE TYPE STRING,
PLIFZ TYPE STRING,
TDDAT TYPE STRING,
TDUHR TYPE STRING,
WADAT TYPE STRING,
WAUHR TYPE STRING,
LDDAT TYPE STRING,
LDUHR TYPE STRING,
ELDAT TYPE STRING,
ELUHR TYPE STRING,
SLINE_DATE TYPE STRING,
SLINE_TIME TYPE STRING,
DELIVEREDQTYINORDERUOM TYPE STRING,
ORDERQTYINORDERUOM TYPE STRING,
PERFORM_SCHEDULING TYPE STRING,
CREATIONDATE TYPE STRING,
LASTCHANGEDATE TYPE STRING,
RECEIVING_WERKS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ATPC_STO_10_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_STO_10_STR-MANDT sy-vline 
WA_ATPC_STO_10_STR-MATNR sy-vline 
WA_ATPC_STO_10_STR-WERKS sy-vline 
WA_ATPC_STO_10_STR-SOBKZ sy-vline 
WA_ATPC_STO_10_STR-SSKEY sy-vline 
WA_ATPC_STO_10_STR-SSKEY_EXT sy-vline 
WA_ATPC_STO_10_STR-LGORT sy-vline 
WA_ATPC_STO_10_STR-CHARG sy-vline 
WA_ATPC_STO_10_STR-SGT_RCAT sy-vline 
WA_ATPC_STO_10_STR-LIFNR sy-vline 
WA_ATPC_STO_10_STR-RESMD sy-vline 
WA_ATPC_STO_10_STR-FIXMG sy-vline 
WA_ATPC_STO_10_STR-MTVFP sy-vline 
WA_ATPC_STO_10_STR-DELNR sy-vline 
WA_ATPC_STO_10_STR-DELPS sy-vline 
WA_ATPC_STO_10_STR-DELET sy-vline 
WA_ATPC_STO_10_STR-ATPCAT sy-vline 
WA_ATPC_STO_10_STR-BSTYP sy-vline 
WA_ATPC_STO_10_STR-BSART sy-vline 
WA_ATPC_STO_10_STR-MAT_AVAIL_DATE sy-vline 
WA_ATPC_STO_10_STR-MAT_AVAIL_TIME sy-vline 
WA_ATPC_STO_10_STR-OPENREQQTYINORDERUOM sy-vline 
WA_ATPC_STO_10_STR-OPENCNFQTYINORDERUOM sy-vline 
WA_ATPC_STO_10_STR-BASE_UOM sy-vline 
WA_ATPC_STO_10_STR-ORDER_UOM sy-vline 
WA_ATPC_STO_10_STR-ORDERTOBASEQUANTITYDNMNTR sy-vline 
WA_ATPC_STO_10_STR-ORDERTOBASEQUANTITYNMRTR sy-vline 
WA_ATPC_STO_10_STR-UNITOFMEASURENUMBEROFDECIMALS sy-vline 
WA_ATPC_STO_10_STR-VKORG sy-vline 
WA_ATPC_STO_10_STR-VTWEG sy-vline 
WA_ATPC_STO_10_STR-SPART sy-vline 
WA_ATPC_STO_10_STR-VSBED sy-vline 
WA_ATPC_STO_10_STR-VSTEL sy-vline 
WA_ATPC_STO_10_STR-ROUTE sy-vline 
WA_ATPC_STO_10_STR-AULWE sy-vline 
WA_ATPC_STO_10_STR-PLIFZ sy-vline 
WA_ATPC_STO_10_STR-TDDAT sy-vline 
WA_ATPC_STO_10_STR-TDUHR sy-vline 
WA_ATPC_STO_10_STR-WADAT sy-vline 
WA_ATPC_STO_10_STR-WAUHR sy-vline 
WA_ATPC_STO_10_STR-LDDAT sy-vline 
WA_ATPC_STO_10_STR-LDUHR sy-vline 
WA_ATPC_STO_10_STR-ELDAT sy-vline 
WA_ATPC_STO_10_STR-ELUHR sy-vline 
WA_ATPC_STO_10_STR-SLINE_DATE sy-vline 
WA_ATPC_STO_10_STR-SLINE_TIME sy-vline 
WA_ATPC_STO_10_STR-DELIVEREDQTYINORDERUOM sy-vline 
WA_ATPC_STO_10_STR-ORDERQTYINORDERUOM sy-vline 
WA_ATPC_STO_10_STR-PERFORM_SCHEDULING sy-vline 
WA_ATPC_STO_10_STR-CREATIONDATE sy-vline 
WA_ATPC_STO_10_STR-LASTCHANGEDATE sy-vline 
WA_ATPC_STO_10_STR-RECEIVING_WERKS sy-vline      INTO ld_text SEPARATED BY SPACE.

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