ABAP Select data from SAP table JVA_BILLING_FILE_INV_DETAILS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM JVA_BILLING_FILE_INV_DETAILS
*  INTO TABLE @DATA(IT_JVA_BILLING_FILE_INV_DETAILS2).
*--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_JVA_BILLING_FILE_INV_DETAILS INDEX 1 INTO DATA(WA_JVA_BILLING_FILE_INV_DETAILS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<JVA_BILLING_FILE_INV_DETAILS>-VNAME = 1.
<JVA_BILLING_FILE_INV_DETAILS>-PARTN = 1.
<JVA_BILLING_FILE_INV_DETAILS>-EGRUP = 1.
<JVA_BILLING_FILE_INV_DETAILS>-RBUKRS = 1.
<JVA_BILLING_FILE_INV_DETAILS>-RYEAR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_JVA_BILLING_FILE_INV_DETAILS-POPER, sy-vline,
  WA_JVA_BILLING_FILE_INV_DETAILS-TOTALID, sy-vline,
  WA_JVA_BILLING_FILE_INV_DETAILS-SEQUENCE, sy-vline,
  WA_JVA_BILLING_FILE_INV_DETAILS-BTYPE, sy-vline,
  WA_JVA_BILLING_FILE_INV_DETAILS-INVOICELINEID, sy-vline,
  WA_JVA_BILLING_FILE_INV_DETAILS-FUNDING_CURRENCY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_JVA_BILLING_FILE_INV_DETAILS 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_JVA_BILLING_FILE_INV_DETAILS 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_JVA_BILLING_FILE_INV_DETAILS INTO WA_JVA_BILLING_FILE_INV_DETAILS.


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

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

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

*Conversion exit GJAHR, internal->external for field RYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_JVA_BILLING_FILE_INV_DETAILS-RYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_JVA_BILLING_FILE_INV_DETAILS-RYEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BTYPE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_JVA_BILLING_FILE_INV_DETAILS-BTYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_JVA_BILLING_FILE_INV_DETAILS-BTYPE.
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_JVA_BILLING_FILE_INV_DETAILS_STR, 
VNAME TYPE STRING,
PARTN TYPE STRING,
EGRUP TYPE STRING,
RBUKRS TYPE STRING,
RYEAR TYPE STRING,
POPER TYPE STRING,
TOTALID TYPE STRING,
SEQUENCE TYPE STRING,
BTYPE TYPE STRING,
INVOICELINEID TYPE STRING,
FUNDING_CURRENCY TYPE STRING,
FCURR_PTD TYPE STRING,
FCURR_YTD TYPE STRING,
FCURR_ITD TYPE STRING,
RHCUR TYPE STRING,
HSL_PTD TYPE STRING,
HSL_YTD TYPE STRING,
HSL_ITD TYPE STRING,
RKCUR TYPE STRING,
KSL_PTD TYPE STRING,
KSL_YTD TYPE STRING,
KSL_ITD TYPE STRING,
EXP_DETAILS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_JVA_BILLING_FILE_INV_DETAILS_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_JVA_BILLING_FILE_INV_DETAILS_STR-VNAME sy-vline 
WA_JVA_BILLING_FILE_INV_DETAILS_STR-PARTN sy-vline 
WA_JVA_BILLING_FILE_INV_DETAILS_STR-EGRUP sy-vline 
WA_JVA_BILLING_FILE_INV_DETAILS_STR-RBUKRS sy-vline 
WA_JVA_BILLING_FILE_INV_DETAILS_STR-RYEAR sy-vline 
WA_JVA_BILLING_FILE_INV_DETAILS_STR-POPER sy-vline 
WA_JVA_BILLING_FILE_INV_DETAILS_STR-TOTALID sy-vline 
WA_JVA_BILLING_FILE_INV_DETAILS_STR-SEQUENCE sy-vline 
WA_JVA_BILLING_FILE_INV_DETAILS_STR-BTYPE sy-vline 
WA_JVA_BILLING_FILE_INV_DETAILS_STR-INVOICELINEID sy-vline 
WA_JVA_BILLING_FILE_INV_DETAILS_STR-FUNDING_CURRENCY sy-vline 
WA_JVA_BILLING_FILE_INV_DETAILS_STR-FCURR_PTD sy-vline 
WA_JVA_BILLING_FILE_INV_DETAILS_STR-FCURR_YTD sy-vline 
WA_JVA_BILLING_FILE_INV_DETAILS_STR-FCURR_ITD sy-vline 
WA_JVA_BILLING_FILE_INV_DETAILS_STR-RHCUR sy-vline 
WA_JVA_BILLING_FILE_INV_DETAILS_STR-HSL_PTD sy-vline 
WA_JVA_BILLING_FILE_INV_DETAILS_STR-HSL_YTD sy-vline 
WA_JVA_BILLING_FILE_INV_DETAILS_STR-HSL_ITD sy-vline 
WA_JVA_BILLING_FILE_INV_DETAILS_STR-RKCUR sy-vline 
WA_JVA_BILLING_FILE_INV_DETAILS_STR-KSL_PTD sy-vline 
WA_JVA_BILLING_FILE_INV_DETAILS_STR-KSL_YTD sy-vline 
WA_JVA_BILLING_FILE_INV_DETAILS_STR-KSL_ITD sy-vline 
WA_JVA_BILLING_FILE_INV_DETAILS_STR-EXP_DETAILS sy-vline      INTO ld_text SEPARATED BY SPACE.

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