ABAP Select data from SAP table TXW_FI_NGL_POS 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 TXW_FI_NGL_POS 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 TXW_FI_NGL_POS. 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 TXW_FI_NGL_POS 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_TXW_FI_NGL_POS TYPE STANDARD TABLE OF TXW_FI_NGL_POS,
      WA_TXW_FI_NGL_POS TYPE TXW_FI_NGL_POS,
      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: <TXW_FI_NGL_POS> TYPE TXW_FI_NGL_POS.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TXW_FI_NGL_POS
*  INTO TABLE @DATA(IT_TXW_FI_NGL_POS2).
*--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_TXW_FI_NGL_POS INDEX 1 INTO DATA(WA_TXW_FI_NGL_POS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TXW_FI_NGL_POS>-MANDT = 1.
<TXW_FI_NGL_POS>-BUKRS = 1.
<TXW_FI_NGL_POS>-RYEAR = 1.
<TXW_FI_NGL_POS>-POPER = 1.
<TXW_FI_NGL_POS>-DOCNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TXW_FI_NGL_POS-DOCLN, sy-vline,
  WA_TXW_FI_NGL_POS-BELNR, sy-vline,
  WA_TXW_FI_NGL_POS-GJAHR, sy-vline,
  WA_TXW_FI_NGL_POS-MONAT, sy-vline,
  WA_TXW_FI_NGL_POS-BUZEI, sy-vline,
  WA_TXW_FI_NGL_POS-BSCHL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TXW_FI_NGL_POS 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_TXW_FI_NGL_POS 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_TXW_FI_NGL_POS INTO WA_TXW_FI_NGL_POS.


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

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

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

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

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

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

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field AUGBL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TXW_FI_NGL_POS-AUGBL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TXW_FI_NGL_POS-AUGBL.
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_TXW_FI_NGL_POS_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
RYEAR TYPE STRING,
POPER TYPE STRING,
DOCNR TYPE STRING,
DOCLN TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
MONAT TYPE STRING,
BUZEI TYPE STRING,
BSCHL TYPE STRING,
KOART TYPE STRING,
HKONT TYPE STRING,
GSBER TYPE STRING,
VBUND TYPE STRING,
SHKZG TYPE STRING,
WRBTR TYPE STRING,
DMBTR TYPE STRING,
DMBE2 TYPE STRING,
DMBE3 TYPE STRING,
MEINS TYPE STRING,
MENGE TYPE STRING,
KOKRS TYPE STRING,
KOSTL TYPE STRING,
PRCTR TYPE STRING,
BEWAR TYPE STRING,
FKBER TYPE STRING,
PARGB TYPE STRING,
SAKNR TYPE STRING,
BSTAT TYPE STRING,
LEDGER TYPE STRING,
ZLSCH TYPE STRING,
UZAWE TYPE STRING,
ACC_NUM TYPE STRING,
NAME1 TYPE STRING,
NAME2 TYPE STRING,
GACC_NUM TYPE STRING,
TXT20 TYPE STRING,
TXT50 TYPE STRING,
XREF1 TYPE STRING,
XBLNR TYPE STRING,
XCPDD TYPE STRING,
SGTXT TYPE STRING,
ZUONR TYPE STRING,
AUGBL TYPE STRING,
AUGDT TYPE STRING,
GLVOR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TXW_FI_NGL_POS_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_TXW_FI_NGL_POS_STR-MANDT sy-vline 
WA_TXW_FI_NGL_POS_STR-BUKRS sy-vline 
WA_TXW_FI_NGL_POS_STR-RYEAR sy-vline 
WA_TXW_FI_NGL_POS_STR-POPER sy-vline 
WA_TXW_FI_NGL_POS_STR-DOCNR sy-vline 
WA_TXW_FI_NGL_POS_STR-DOCLN sy-vline 
WA_TXW_FI_NGL_POS_STR-BELNR sy-vline 
WA_TXW_FI_NGL_POS_STR-GJAHR sy-vline 
WA_TXW_FI_NGL_POS_STR-MONAT sy-vline 
WA_TXW_FI_NGL_POS_STR-BUZEI sy-vline 
WA_TXW_FI_NGL_POS_STR-BSCHL sy-vline 
WA_TXW_FI_NGL_POS_STR-KOART sy-vline 
WA_TXW_FI_NGL_POS_STR-HKONT sy-vline 
WA_TXW_FI_NGL_POS_STR-GSBER sy-vline 
WA_TXW_FI_NGL_POS_STR-VBUND sy-vline 
WA_TXW_FI_NGL_POS_STR-SHKZG sy-vline 
WA_TXW_FI_NGL_POS_STR-WRBTR sy-vline 
WA_TXW_FI_NGL_POS_STR-DMBTR sy-vline 
WA_TXW_FI_NGL_POS_STR-DMBE2 sy-vline 
WA_TXW_FI_NGL_POS_STR-DMBE3 sy-vline 
WA_TXW_FI_NGL_POS_STR-MEINS sy-vline 
WA_TXW_FI_NGL_POS_STR-MENGE sy-vline 
WA_TXW_FI_NGL_POS_STR-KOKRS sy-vline 
WA_TXW_FI_NGL_POS_STR-KOSTL sy-vline 
WA_TXW_FI_NGL_POS_STR-PRCTR sy-vline 
WA_TXW_FI_NGL_POS_STR-BEWAR sy-vline 
WA_TXW_FI_NGL_POS_STR-FKBER sy-vline 
WA_TXW_FI_NGL_POS_STR-PARGB sy-vline 
WA_TXW_FI_NGL_POS_STR-SAKNR sy-vline 
WA_TXW_FI_NGL_POS_STR-BSTAT sy-vline 
WA_TXW_FI_NGL_POS_STR-LEDGER sy-vline 
WA_TXW_FI_NGL_POS_STR-ZLSCH sy-vline 
WA_TXW_FI_NGL_POS_STR-UZAWE sy-vline 
WA_TXW_FI_NGL_POS_STR-ACC_NUM sy-vline 
WA_TXW_FI_NGL_POS_STR-NAME1 sy-vline 
WA_TXW_FI_NGL_POS_STR-NAME2 sy-vline 
WA_TXW_FI_NGL_POS_STR-GACC_NUM sy-vline 
WA_TXW_FI_NGL_POS_STR-TXT20 sy-vline 
WA_TXW_FI_NGL_POS_STR-TXT50 sy-vline 
WA_TXW_FI_NGL_POS_STR-XREF1 sy-vline 
WA_TXW_FI_NGL_POS_STR-XBLNR sy-vline 
WA_TXW_FI_NGL_POS_STR-XCPDD sy-vline 
WA_TXW_FI_NGL_POS_STR-SGTXT sy-vline 
WA_TXW_FI_NGL_POS_STR-ZUONR sy-vline 
WA_TXW_FI_NGL_POS_STR-AUGBL sy-vline 
WA_TXW_FI_NGL_POS_STR-AUGDT sy-vline 
WA_TXW_FI_NGL_POS_STR-GLVOR sy-vline      INTO ld_text SEPARATED BY SPACE.

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