ABAP Select data from SAP table EBILLPRG into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EBILLPRG
*  INTO TABLE @DATA(IT_EBILLPRG2).
*--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_EBILLPRG INDEX 1 INTO DATA(WA_EBILLPRG2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EBILLPRG>-MANDT = 1.
<EBILLPRG>-BILLPRGID = 1.
<EBILLPRG>-VALIDFROM = 1.
<EBILLPRG>-VALIDTO = 1.
<EBILLPRG>-PRGCAT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EBILLPRG-TZONE, sy-vline,
  WA_EBILLPRG-SPLITTABLE, sy-vline,
  WA_EBILLPRG-SPOTPOSI, sy-vline,
  WA_EBILLPRG-APPLSTRUCT, sy-vline,
  WA_EBILLPRG-CONTRACTREL, sy-vline,
  WA_EBILLPRG-CR_DATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EBILLPRG 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_EBILLPRG 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_EBILLPRG INTO WA_EBILLPRG.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_EBILLPRG_STR, 
MANDT TYPE STRING,
BILLPRGID TYPE STRING,
VALIDFROM TYPE STRING,
VALIDTO TYPE STRING,
PRGCAT TYPE STRING,
TZONE TYPE STRING,
SPLITTABLE TYPE STRING,
SPOTPOSI TYPE STRING,
APPLSTRUCT TYPE STRING,
CONTRACTREL TYPE STRING,
CR_DATE TYPE STRING,
CR_TIME TYPE STRING,
CR_NAME TYPE STRING,
CH_DATE TYPE STRING,
CH_TIME TYPE STRING,
CH_NAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EBILLPRG_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_EBILLPRG_STR-MANDT sy-vline 
WA_EBILLPRG_STR-BILLPRGID sy-vline 
WA_EBILLPRG_STR-VALIDFROM sy-vline 
WA_EBILLPRG_STR-VALIDTO sy-vline 
WA_EBILLPRG_STR-PRGCAT sy-vline 
WA_EBILLPRG_STR-TZONE sy-vline 
WA_EBILLPRG_STR-SPLITTABLE sy-vline 
WA_EBILLPRG_STR-SPOTPOSI sy-vline 
WA_EBILLPRG_STR-APPLSTRUCT sy-vline 
WA_EBILLPRG_STR-CONTRACTREL sy-vline 
WA_EBILLPRG_STR-CR_DATE sy-vline 
WA_EBILLPRG_STR-CR_TIME sy-vline 
WA_EBILLPRG_STR-CR_NAME sy-vline 
WA_EBILLPRG_STR-CH_DATE sy-vline 
WA_EBILLPRG_STR-CH_TIME sy-vline 
WA_EBILLPRG_STR-CH_NAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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