ABAP Select data from SAP table Q0639 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP Q0639 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 Q0639. 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 Q0639 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_Q0639 TYPE STANDARD TABLE OF Q0639,
      WA_Q0639 TYPE Q0639,
      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: <Q0639> TYPE Q0639.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_Q0639.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM Q0639
  INTO TABLE IT_Q0639.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM Q0639
*  INTO TABLE @DATA(IT_Q06392).
*--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_Q0639 INDEX 1 INTO DATA(WA_Q06392).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_Q0639 ASSIGNING <Q0639>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<Q0639>-HLANM = 1.
<Q0639>-HATKM = 1.
<Q0639>-HMODM = 1.
<Q0639>-HATJM = 1.
<Q0639>-HATAM = 1.

ENDLOOP.

LOOP AT IT_Q0639 INTO WA_Q0639.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_Q0639-VATHM, sy-vline,
  WA_Q0639-MATHM, sy-vline,
  WA_Q0639-ADOMM, sy-vline,
  WA_Q0639-RANGM, sy-vline,
  WA_Q0639-TO_EV_KIM, sy-vline,
  WA_Q0639-TO_HO_KIM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_Q0639 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_Q0639 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_Q0639 INTO WA_Q0639.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_Q0639_STR, 
HLANM TYPE STRING,
HATKM TYPE STRING,
HMODM TYPE STRING,
HATJM TYPE STRING,
HATAM TYPE STRING,
VATHM TYPE STRING,
MATHM TYPE STRING,
ADOMM TYPE STRING,
RANGM TYPE STRING,
TO_EV_KIM TYPE STRING,
TO_HO_KIM TYPE STRING,
TONAP_KIM TYPE STRING,
TO_EV_KIMK TYPE STRING,
TO_HO_KIMK TYPE STRING,
TONAP_KIMK TYPE STRING,
TO_EV_KIH TYPE STRING,
TO_HO_KIH TYPE STRING,
TONAP_KIH TYPE STRING,
TO_EV TYPE STRING,
TO_HO TYPE STRING,
TONAP TYPE STRING,
KINEV TYPE STRING,
JKEZD TYPE STRING,
JKEZJ TYPE STRING,
JKEZV TYPE STRING,
TO_EV2 TYPE STRING,
TO_HO2 TYPE STRING,
TONAP2 TYPE STRING,
TJ_EV TYPE STRING,
TJ_HO TYPE STRING,
TJNAP TYPE STRING,
TV_EV TYPE STRING,
TV_HO TYPE STRING,
TVNAP TYPE STRING,
TO_EV_JTAR TYPE STRING,
TO_HO_JTAR TYPE STRING,
TONAP_JTAR TYPE STRING,
TJ_EV_JTAR TYPE STRING,
TJ_HO_JTAR TYPE STRING,
TJNAP_JTAR TYPE STRING,
TV_EV_JTAR TYPE STRING,
TV_HO_JTAR TYPE STRING,
TVNAP_JTAR TYPE STRING,
JKEZP TYPE STRING,
JKEZ_NYJ TYPE STRING,
JKEZ_NYM TYPE STRING,
JKEZ_SZI TYPE STRING,
JKEZ_SZJ TYPE STRING,
JKEZ_LS TYPE STRING,
JKEZ_REN TYPE STRING,
JKEZ_TSZ TYPE STRING,
JOGV_IDO TYPE STRING,
JOGV_KEZD TYPE STRING,
JKEZM_F1_S TYPE STRING,END OF T_EKKO_STR.
DATA: WA_Q0639_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_Q0639_STR-HLANM sy-vline 
WA_Q0639_STR-HATKM sy-vline 
WA_Q0639_STR-HMODM sy-vline 
WA_Q0639_STR-HATJM sy-vline 
WA_Q0639_STR-HATAM sy-vline 
WA_Q0639_STR-VATHM sy-vline 
WA_Q0639_STR-MATHM sy-vline 
WA_Q0639_STR-ADOMM sy-vline 
WA_Q0639_STR-RANGM sy-vline 
WA_Q0639_STR-TO_EV_KIM sy-vline 
WA_Q0639_STR-TO_HO_KIM sy-vline 
WA_Q0639_STR-TONAP_KIM sy-vline 
WA_Q0639_STR-TO_EV_KIMK sy-vline 
WA_Q0639_STR-TO_HO_KIMK sy-vline 
WA_Q0639_STR-TONAP_KIMK sy-vline 
WA_Q0639_STR-TO_EV_KIH sy-vline 
WA_Q0639_STR-TO_HO_KIH sy-vline 
WA_Q0639_STR-TONAP_KIH sy-vline 
WA_Q0639_STR-TO_EV sy-vline 
WA_Q0639_STR-TO_HO sy-vline 
WA_Q0639_STR-TONAP sy-vline 
WA_Q0639_STR-KINEV sy-vline 
WA_Q0639_STR-JKEZD sy-vline 
WA_Q0639_STR-JKEZJ sy-vline 
WA_Q0639_STR-JKEZV sy-vline 
WA_Q0639_STR-TO_EV2 sy-vline 
WA_Q0639_STR-TO_HO2 sy-vline 
WA_Q0639_STR-TONAP2 sy-vline 
WA_Q0639_STR-TJ_EV sy-vline 
WA_Q0639_STR-TJ_HO sy-vline 
WA_Q0639_STR-TJNAP sy-vline 
WA_Q0639_STR-TV_EV sy-vline 
WA_Q0639_STR-TV_HO sy-vline 
WA_Q0639_STR-TVNAP sy-vline 
WA_Q0639_STR-TO_EV_JTAR sy-vline 
WA_Q0639_STR-TO_HO_JTAR sy-vline 
WA_Q0639_STR-TONAP_JTAR sy-vline 
WA_Q0639_STR-TJ_EV_JTAR sy-vline 
WA_Q0639_STR-TJ_HO_JTAR sy-vline 
WA_Q0639_STR-TJNAP_JTAR sy-vline 
WA_Q0639_STR-TV_EV_JTAR sy-vline 
WA_Q0639_STR-TV_HO_JTAR sy-vline 
WA_Q0639_STR-TVNAP_JTAR sy-vline 
WA_Q0639_STR-JKEZP sy-vline 
WA_Q0639_STR-JKEZ_NYJ sy-vline 
WA_Q0639_STR-JKEZ_NYM sy-vline 
WA_Q0639_STR-JKEZ_SZI sy-vline 
WA_Q0639_STR-JKEZ_SZJ sy-vline 
WA_Q0639_STR-JKEZ_LS sy-vline 
WA_Q0639_STR-JKEZ_REN sy-vline 
WA_Q0639_STR-JKEZ_TSZ sy-vline 
WA_Q0639_STR-JOGV_IDO sy-vline 
WA_Q0639_STR-JOGV_KEZD sy-vline 
WA_Q0639_STR-JKEZM_F1_S sy-vline      INTO ld_text SEPARATED BY SPACE.

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