ABAP Select data from SAP table IEOPENBILLGS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IEOPENBILLGS
*  INTO TABLE @DATA(IT_IEOPENBILLGS2).
*--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_IEOPENBILLGS INDEX 1 INTO DATA(WA_IEOPENBILLGS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IEOPENBILLGS>-MANDT = 1.
<IEOPENBILLGS>-UTILITIESCONTRACT = 1.
<IEOPENBILLGS>-UTILITIESINSTALLATION = 1.
<IEOPENBILLGS>-SCHEDULEDUTILITIESBILLINGDATE = 1.
<IEOPENBILLGS>-UTILITIESBILLINGREASON = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IEOPENBILLGS-UTILITIESPORTION, sy-vline,
  WA_IEOPENBILLGS-SCHEDULEDMETERREADINGDATE, sy-vline,
  WA_IEOPENBILLGS-COMPANYCODE, sy-vline,
  WA_IEOPENBILLGS-DIVISION, sy-vline,
  WA_IEOPENBILLGS-UTILSBILLGBLOCKREASON, sy-vline,
  WA_IEOPENBILLGS-UTILSBILLGUNBLOCKREASON, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IEOPENBILLGS 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_IEOPENBILLGS 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_IEOPENBILLGS INTO WA_IEOPENBILLGS.


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

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

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

*Conversion exit ALPHA, internal->external for field BUSINESSPARTNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IEOPENBILLGS-BUSINESSPARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IEOPENBILLGS-BUSINESSPARTNER.
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_IEOPENBILLGS_STR, 
MANDT TYPE STRING,
UTILITIESCONTRACT TYPE STRING,
UTILITIESINSTALLATION TYPE STRING,
SCHEDULEDUTILITIESBILLINGDATE TYPE STRING,
UTILITIESBILLINGREASON TYPE STRING,
UTILITIESPORTION TYPE STRING,
SCHEDULEDMETERREADINGDATE TYPE STRING,
COMPANYCODE TYPE STRING,
DIVISION TYPE STRING,
UTILSBILLGBLOCKREASON TYPE STRING,
UTILSBILLGUNBLOCKREASON TYPE STRING,
METERREADINGUNIT TYPE STRING,
UTILITIESRATECATEGORY TYPE STRING,
UTILITIESBILLINGCLASS TYPE STRING,
UTILSPORTIONSCHEDULERECORDDATE TYPE STRING,
METERREADINGREASON TYPE STRING,
UTILITIESMOVEINDATE TYPE STRING,
UTILITIESMOVEOUTDATE TYPE STRING,
UTILITIESACCOUNTDETNCODE TYPE STRING,
CONTRACTACCOUNT TYPE STRING,
BUSINESSPARTNER TYPE STRING,
OPNUTILSBILLGDOCANDORDTYPE TYPE STRING,
METERREADINGSTATUSGROUP TYPE STRING,
NMBROFIMPLAUSIBLEMTRRDNGRSLTS TYPE STRING,
AUTHORIZATIONGROUP TYPE STRING,
NROFOPENUTILSBILLGDOCSANDORDS TYPE STRING,
NMBROFUTILSCONTRBLKDFORBILLG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IEOPENBILLGS_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_IEOPENBILLGS_STR-MANDT sy-vline 
WA_IEOPENBILLGS_STR-UTILITIESCONTRACT sy-vline 
WA_IEOPENBILLGS_STR-UTILITIESINSTALLATION sy-vline 
WA_IEOPENBILLGS_STR-SCHEDULEDUTILITIESBILLINGDATE sy-vline 
WA_IEOPENBILLGS_STR-UTILITIESBILLINGREASON sy-vline 
WA_IEOPENBILLGS_STR-UTILITIESPORTION sy-vline 
WA_IEOPENBILLGS_STR-SCHEDULEDMETERREADINGDATE sy-vline 
WA_IEOPENBILLGS_STR-COMPANYCODE sy-vline 
WA_IEOPENBILLGS_STR-DIVISION sy-vline 
WA_IEOPENBILLGS_STR-UTILSBILLGBLOCKREASON sy-vline 
WA_IEOPENBILLGS_STR-UTILSBILLGUNBLOCKREASON sy-vline 
WA_IEOPENBILLGS_STR-METERREADINGUNIT sy-vline 
WA_IEOPENBILLGS_STR-UTILITIESRATECATEGORY sy-vline 
WA_IEOPENBILLGS_STR-UTILITIESBILLINGCLASS sy-vline 
WA_IEOPENBILLGS_STR-UTILSPORTIONSCHEDULERECORDDATE sy-vline 
WA_IEOPENBILLGS_STR-METERREADINGREASON sy-vline 
WA_IEOPENBILLGS_STR-UTILITIESMOVEINDATE sy-vline 
WA_IEOPENBILLGS_STR-UTILITIESMOVEOUTDATE sy-vline 
WA_IEOPENBILLGS_STR-UTILITIESACCOUNTDETNCODE sy-vline 
WA_IEOPENBILLGS_STR-CONTRACTACCOUNT sy-vline 
WA_IEOPENBILLGS_STR-BUSINESSPARTNER sy-vline 
WA_IEOPENBILLGS_STR-OPNUTILSBILLGDOCANDORDTYPE sy-vline 
WA_IEOPENBILLGS_STR-METERREADINGSTATUSGROUP sy-vline 
WA_IEOPENBILLGS_STR-NMBROFIMPLAUSIBLEMTRRDNGRSLTS sy-vline 
WA_IEOPENBILLGS_STR-AUTHORIZATIONGROUP sy-vline 
WA_IEOPENBILLGS_STR-NROFOPENUTILSBILLGDOCSANDORDS sy-vline 
WA_IEOPENBILLGS_STR-NMBROFUTILSCONTRBLKDFORBILLG sy-vline      INTO ld_text SEPARATED BY SPACE.

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