ABAP Select data from SAP table BWE_IFLOSA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BWE_IFLOSA
*  INTO TABLE @DATA(IT_BWE_IFLOSA2).
*--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_BWE_IFLOSA INDEX 1 INTO DATA(WA_BWE_IFLOSA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BWE_IFLOSA>-TPLNR = 1.
<BWE_IFLOSA>-FLTYP = 1.
<BWE_IFLOSA>-SUBMT = 1.
<BWE_IFLOSA>-IWERK = 1.
<BWE_IFLOSA>-INGRP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BWE_IFLOSA-ABCKZ, sy-vline,
  WA_BWE_IFLOSA-SWERK, sy-vline,
  WA_BWE_IFLOSA-STORT, sy-vline,
  WA_BWE_IFLOSA-MSGRP, sy-vline,
  WA_BWE_IFLOSA-BEBER, sy-vline,
  WA_BWE_IFLOSA-ADRNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BWE_IFLOSA 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_BWE_IFLOSA 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_BWE_IFLOSA INTO WA_BWE_IFLOSA.


*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 TPLNR, internal->external for field TPLNR
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_BWE_IFLOSA-TPLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BWE_IFLOSA-TPLNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field SUBMT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_BWE_IFLOSA-SUBMT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BWE_IFLOSA-SUBMT.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field ANLNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BWE_IFLOSA-ANLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BWE_IFLOSA-ANLNR.
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_BWE_IFLOSA_STR, 
TPLNR TYPE STRING,
FLTYP TYPE STRING,
SUBMT TYPE STRING,
IWERK TYPE STRING,
INGRP TYPE STRING,
ABCKZ TYPE STRING,
SWERK TYPE STRING,
STORT TYPE STRING,
MSGRP TYPE STRING,
BEBER TYPE STRING,
ADRNR TYPE STRING,
KOKRS TYPE STRING,
KOSTL TYPE STRING,
BUKRS TYPE STRING,
ANLNR TYPE STRING,
ALKEY TYPE STRING,
STRNO TYPE STRING,
DATAB TYPE STRING,
ERDAT TYPE STRING,
AEDAT TYPE STRING,
VERSN TYPE STRING,
ACTVS TYPE STRING,
TPLKZ TYPE STRING,
PRKEY TYPE STRING,
REUSE TYPE STRING,
ERDAT_S TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BWE_IFLOSA_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_BWE_IFLOSA_STR-TPLNR sy-vline 
WA_BWE_IFLOSA_STR-FLTYP sy-vline 
WA_BWE_IFLOSA_STR-SUBMT sy-vline 
WA_BWE_IFLOSA_STR-IWERK sy-vline 
WA_BWE_IFLOSA_STR-INGRP sy-vline 
WA_BWE_IFLOSA_STR-ABCKZ sy-vline 
WA_BWE_IFLOSA_STR-SWERK sy-vline 
WA_BWE_IFLOSA_STR-STORT sy-vline 
WA_BWE_IFLOSA_STR-MSGRP sy-vline 
WA_BWE_IFLOSA_STR-BEBER sy-vline 
WA_BWE_IFLOSA_STR-ADRNR sy-vline 
WA_BWE_IFLOSA_STR-KOKRS sy-vline 
WA_BWE_IFLOSA_STR-KOSTL sy-vline 
WA_BWE_IFLOSA_STR-BUKRS sy-vline 
WA_BWE_IFLOSA_STR-ANLNR sy-vline 
WA_BWE_IFLOSA_STR-ALKEY sy-vline 
WA_BWE_IFLOSA_STR-STRNO sy-vline 
WA_BWE_IFLOSA_STR-DATAB sy-vline 
WA_BWE_IFLOSA_STR-ERDAT sy-vline 
WA_BWE_IFLOSA_STR-AEDAT sy-vline 
WA_BWE_IFLOSA_STR-VERSN sy-vline 
WA_BWE_IFLOSA_STR-ACTVS sy-vline 
WA_BWE_IFLOSA_STR-TPLKZ sy-vline 
WA_BWE_IFLOSA_STR-PRKEY sy-vline 
WA_BWE_IFLOSA_STR-REUSE sy-vline 
WA_BWE_IFLOSA_STR-ERDAT_S sy-vline      INTO ld_text SEPARATED BY SPACE.

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