ABAP Select data from SAP table BAPILOAN_USERFIELDS into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BAPILOAN_USERFIELDS
*  INTO TABLE @DATA(IT_BAPILOAN_USERFIELDS2).
*--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_BAPILOAN_USERFIELDS INDEX 1 INTO DATA(WA_BAPILOAN_USERFIELDS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BAPILOAN_USERFIELDS>-COMP_CODE = 1.
<BAPILOAN_USERFIELDS>-CONTRACT_NO = 1.
<BAPILOAN_USERFIELDS>-INT_NO = 1.
<BAPILOAN_USERFIELDS>-OBJECT_NO = 1.
<BAPILOAN_USERFIELDS>-NO_RANGE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BAPILOAN_USERFIELDS-FIELD_KEY, sy-vline,
  WA_BAPILOAN_USERFIELDS-SOBJECT, sy-vline,
  WA_BAPILOAN_USERFIELDS-USERFIELD1_CH20, sy-vline,
  WA_BAPILOAN_USERFIELDS-USERFIELD2_CH20, sy-vline,
  WA_BAPILOAN_USERFIELDS-USERFIELD1_CH10, sy-vline,
  WA_BAPILOAN_USERFIELDS-USERFIELD2_CH10, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BAPILOAN_USERFIELDS 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_BAPILOAN_USERFIELDS 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_BAPILOAN_USERFIELDS INTO WA_BAPILOAN_USERFIELDS.


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

*Conversion exit CUNIT, internal->external for field USERFIELD1_UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_BAPILOAN_USERFIELDS-USERFIELD1_UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPILOAN_USERFIELDS-USERFIELD1_UNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field USERFIELD2_UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_BAPILOAN_USERFIELDS-USERFIELD2_UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPILOAN_USERFIELDS-USERFIELD2_UNIT.
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_BAPILOAN_USERFIELDS_STR, 
COMP_CODE TYPE STRING,
CONTRACT_NO TYPE STRING,
INT_NO TYPE STRING,
OBJECT_NO TYPE STRING,
NO_RANGE TYPE STRING,
FIELD_KEY TYPE STRING,
SOBJECT TYPE STRING,
USERFIELD1_CH20 TYPE STRING,
USERFIELD2_CH20 TYPE STRING,
USERFIELD1_CH10 TYPE STRING,
USERFIELD2_CH10 TYPE STRING,
USERFIELD1_QUAN TYPE STRING,
USERFIELD1_UNIT TYPE STRING,
USERFIELD1_UNIT_ISO TYPE STRING,
USERFIELD2_QUAN TYPE STRING,
USERFIELD2_UNIT TYPE STRING,
USERFIELD2_UNIT_ISO TYPE STRING,
USERFIELD1_AMNT TYPE STRING,
USERFIELD1_CURR TYPE STRING,
USERFIELD1_CURR_ISO TYPE STRING,
USERFIELD2_AMNT TYPE STRING,
USERFIELD2_CURR TYPE STRING,
USERFIELD2_CURR_ISO TYPE STRING,
USERFIELD1_DATE TYPE STRING,
USERFIELD2_DATE TYPE STRING,
USERFIELD1_MARK TYPE STRING,
USERFIELD2_MARK TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BAPILOAN_USERFIELDS_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_BAPILOAN_USERFIELDS_STR-COMP_CODE sy-vline 
WA_BAPILOAN_USERFIELDS_STR-CONTRACT_NO sy-vline 
WA_BAPILOAN_USERFIELDS_STR-INT_NO sy-vline 
WA_BAPILOAN_USERFIELDS_STR-OBJECT_NO sy-vline 
WA_BAPILOAN_USERFIELDS_STR-NO_RANGE sy-vline 
WA_BAPILOAN_USERFIELDS_STR-FIELD_KEY sy-vline 
WA_BAPILOAN_USERFIELDS_STR-SOBJECT sy-vline 
WA_BAPILOAN_USERFIELDS_STR-USERFIELD1_CH20 sy-vline 
WA_BAPILOAN_USERFIELDS_STR-USERFIELD2_CH20 sy-vline 
WA_BAPILOAN_USERFIELDS_STR-USERFIELD1_CH10 sy-vline 
WA_BAPILOAN_USERFIELDS_STR-USERFIELD2_CH10 sy-vline 
WA_BAPILOAN_USERFIELDS_STR-USERFIELD1_QUAN sy-vline 
WA_BAPILOAN_USERFIELDS_STR-USERFIELD1_UNIT sy-vline 
WA_BAPILOAN_USERFIELDS_STR-USERFIELD1_UNIT_ISO sy-vline 
WA_BAPILOAN_USERFIELDS_STR-USERFIELD2_QUAN sy-vline 
WA_BAPILOAN_USERFIELDS_STR-USERFIELD2_UNIT sy-vline 
WA_BAPILOAN_USERFIELDS_STR-USERFIELD2_UNIT_ISO sy-vline 
WA_BAPILOAN_USERFIELDS_STR-USERFIELD1_AMNT sy-vline 
WA_BAPILOAN_USERFIELDS_STR-USERFIELD1_CURR sy-vline 
WA_BAPILOAN_USERFIELDS_STR-USERFIELD1_CURR_ISO sy-vline 
WA_BAPILOAN_USERFIELDS_STR-USERFIELD2_AMNT sy-vline 
WA_BAPILOAN_USERFIELDS_STR-USERFIELD2_CURR sy-vline 
WA_BAPILOAN_USERFIELDS_STR-USERFIELD2_CURR_ISO sy-vline 
WA_BAPILOAN_USERFIELDS_STR-USERFIELD1_DATE sy-vline 
WA_BAPILOAN_USERFIELDS_STR-USERFIELD2_DATE sy-vline 
WA_BAPILOAN_USERFIELDS_STR-USERFIELD1_MARK sy-vline 
WA_BAPILOAN_USERFIELDS_STR-USERFIELD2_MARK sy-vline      INTO ld_text SEPARATED BY SPACE.

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