ABAP Select data from SAP table SDBIL_APM_S_HEAD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SDBIL_APM_S_HEAD
*  INTO TABLE @DATA(IT_SDBIL_APM_S_HEAD2).
*--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_SDBIL_APM_S_HEAD INDEX 1 INTO DATA(WA_SDBIL_APM_S_HEAD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SDBIL_APM_S_HEAD>-BILLINGDOCUMENT = 1.
<SDBIL_APM_S_HEAD>-BILLINGDOCUMENTTYPE = 1.
<SDBIL_APM_S_HEAD>-PRELIMBILLINGDOCUMENTSTATUS = 1.
<SDBIL_APM_S_HEAD>-COMPANYCODE = 1.
<SDBIL_APM_S_HEAD>-SALESORGANIZATION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SDBIL_APM_S_HEAD-DISTRIBUTIONCHANNEL, sy-vline,
  WA_SDBIL_APM_S_HEAD-DIVISION, sy-vline,
  WA_SDBIL_APM_S_HEAD-SOLDTOPARTY, sy-vline,
  WA_SDBIL_APM_S_HEAD-CUSTOMERGROUP, sy-vline,
  WA_SDBIL_APM_S_HEAD-TOTALNETAMOUNT, sy-vline,
  WA_SDBIL_APM_S_HEAD-TRANSACTIONCURRENCY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SDBIL_APM_S_HEAD 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_SDBIL_APM_S_HEAD 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_SDBIL_APM_S_HEAD INTO WA_SDBIL_APM_S_HEAD.


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

*Conversion exit ALPHA, internal->external for field SOLDTOPARTY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_SDBIL_APM_S_HEAD-SOLDTOPARTY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SDBIL_APM_S_HEAD-SOLDTOPARTY.
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_SDBIL_APM_S_HEAD_STR, 
BILLINGDOCUMENT TYPE STRING,
BILLINGDOCUMENTTYPE TYPE STRING,
PRELIMBILLINGDOCUMENTSTATUS TYPE STRING,
COMPANYCODE TYPE STRING,
SALESORGANIZATION TYPE STRING,
DISTRIBUTIONCHANNEL TYPE STRING,
DIVISION TYPE STRING,
SOLDTOPARTY TYPE STRING,
CUSTOMERGROUP TYPE STRING,
TOTALNETAMOUNT TYPE STRING,
TRANSACTIONCURRENCY TYPE STRING,
CREATEDBYUSER TYPE STRING,
DUMMY_BILLINGDOC_INCL_EEW_PS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SDBIL_APM_S_HEAD_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_SDBIL_APM_S_HEAD_STR-BILLINGDOCUMENT sy-vline 
WA_SDBIL_APM_S_HEAD_STR-BILLINGDOCUMENTTYPE sy-vline 
WA_SDBIL_APM_S_HEAD_STR-PRELIMBILLINGDOCUMENTSTATUS sy-vline 
WA_SDBIL_APM_S_HEAD_STR-COMPANYCODE sy-vline 
WA_SDBIL_APM_S_HEAD_STR-SALESORGANIZATION sy-vline 
WA_SDBIL_APM_S_HEAD_STR-DISTRIBUTIONCHANNEL sy-vline 
WA_SDBIL_APM_S_HEAD_STR-DIVISION sy-vline 
WA_SDBIL_APM_S_HEAD_STR-SOLDTOPARTY sy-vline 
WA_SDBIL_APM_S_HEAD_STR-CUSTOMERGROUP sy-vline 
WA_SDBIL_APM_S_HEAD_STR-TOTALNETAMOUNT sy-vline 
WA_SDBIL_APM_S_HEAD_STR-TRANSACTIONCURRENCY sy-vline 
WA_SDBIL_APM_S_HEAD_STR-CREATEDBYUSER sy-vline 
WA_SDBIL_APM_S_HEAD_STR-DUMMY_BILLINGDOC_INCL_EEW_PS sy-vline      INTO ld_text SEPARATED BY SPACE.

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