ABAP Select data from SAP table ETXDCJ into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ETXDCJ 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 ETXDCJ. 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 ETXDCJ 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_ETXDCJ TYPE STANDARD TABLE OF ETXDCJ,
      WA_ETXDCJ TYPE ETXDCJ,
      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: <ETXDCJ> TYPE ETXDCJ.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ETXDCJ
*  INTO TABLE @DATA(IT_ETXDCJ2).
*--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_ETXDCJ INDEX 1 INTO DATA(WA_ETXDCJ2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ETXDCJ>-MANDT = 1.
<ETXDCJ>-DOCNR = 1.
<ETXDCJ>-ITEMNR = 1.
<ETXDCJ>-TXJLV = 1.
<ETXDCJ>-TXJCD = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ETXDCJ-TAXPCT, sy-vline,
  WA_ETXDCJ-TAXAMT, sy-vline,
  WA_ETXDCJ-TAXBAS, sy-vline,
  WA_ETXDCJ-EXAMT, sy-vline,
  WA_ETXDCJ-EXCODE, sy-vline,
  WA_ETXDCJ-GL_TAXPCT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ETXDCJ 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_ETXDCJ 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_ETXDCJ INTO WA_ETXDCJ.


*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 AC112, internal->external for field TAXPCT
CALL FUNCTION 'CONVERSION_EXIT_AC112_OUTPUT'
  EXPORTING
    input =                      WA_ETXDCJ-TAXPCT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ETXDCJ-TAXPCT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field TAXAMT
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_ETXDCJ-TAXAMT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ETXDCJ-TAXAMT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field TAXBAS
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_ETXDCJ-TAXBAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ETXDCJ-TAXBAS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field EXAMT
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_ETXDCJ-EXAMT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ETXDCJ-EXAMT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC112, internal->external for field GL_TAXPCT
CALL FUNCTION 'CONVERSION_EXIT_AC112_OUTPUT'
  EXPORTING
    input =                      WA_ETXDCJ-GL_TAXPCT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ETXDCJ-GL_TAXPCT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field GL_TAXAMT
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_ETXDCJ-GL_TAXAMT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ETXDCJ-GL_TAXAMT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field GL_TAXBAS
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_ETXDCJ-GL_TAXBAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ETXDCJ-GL_TAXBAS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field HKONT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ETXDCJ-HKONT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ETXDCJ-HKONT.
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_ETXDCJ_STR, 
MANDT TYPE STRING,
DOCNR TYPE STRING,
ITEMNR TYPE STRING,
TXJLV TYPE STRING,
TXJCD TYPE STRING,
TAXPCT TYPE STRING,
TAXAMT TYPE STRING,
TAXBAS TYPE STRING,
EXAMT TYPE STRING,
EXCODE TYPE STRING,
GL_TAXPCT TYPE STRING,
GL_TAXAMT TYPE STRING,
GL_TAXBAS TYPE STRING,
GL_SHKZG TYPE STRING,
HKONT TYPE STRING,
TAX_STATE TYPE STRING,
SOURCING TYPE STRING,
_DATAAGING TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ETXDCJ_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_ETXDCJ_STR-MANDT sy-vline 
WA_ETXDCJ_STR-DOCNR sy-vline 
WA_ETXDCJ_STR-ITEMNR sy-vline 
WA_ETXDCJ_STR-TXJLV sy-vline 
WA_ETXDCJ_STR-TXJCD sy-vline 
WA_ETXDCJ_STR-TAXPCT sy-vline 
WA_ETXDCJ_STR-TAXAMT sy-vline 
WA_ETXDCJ_STR-TAXBAS sy-vline 
WA_ETXDCJ_STR-EXAMT sy-vline 
WA_ETXDCJ_STR-EXCODE sy-vline 
WA_ETXDCJ_STR-GL_TAXPCT sy-vline 
WA_ETXDCJ_STR-GL_TAXAMT sy-vline 
WA_ETXDCJ_STR-GL_TAXBAS sy-vline 
WA_ETXDCJ_STR-GL_SHKZG sy-vline 
WA_ETXDCJ_STR-HKONT sy-vline 
WA_ETXDCJ_STR-TAX_STATE sy-vline 
WA_ETXDCJ_STR-SOURCING sy-vline 
WA_ETXDCJ_STR-_DATAAGING sy-vline      INTO ld_text SEPARATED BY SPACE.

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