ABAP Select data from SAP table Q3422 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP Q3422 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 Q3422. 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 Q3422 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_Q3422 TYPE STANDARD TABLE OF Q3422,
      WA_Q3422 TYPE Q3422,
      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: <Q3422> TYPE Q3422.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_Q3422.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM Q3422
  INTO TABLE IT_Q3422.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM Q3422
*  INTO TABLE @DATA(IT_Q34222).
*--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_Q3422 INDEX 1 INTO DATA(WA_Q34222).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_Q3422 ASSIGNING <Q3422>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<Q3422>-DEAMT = 1.
<Q3422>-WAERS = 1.
<Q3422>-SBTTX = 1.
<Q3422>-CITYC = 1.
<Q3422>-CURUT = 1.

ENDLOOP.

LOOP AT IT_Q3422 INTO WA_Q3422.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_Q3422-FAAGE, sy-vline,
  WA_Q3422-FANAM, sy-vline,
  WA_Q3422-FAVOR, sy-vline,
  WA_Q3422-ICTYP, sy-vline,
  WA_Q3422-ICNUM, sy-vline,
  WA_Q3422-FGBDT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_Q3422 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_Q3422 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_Q3422 INTO WA_Q3422.


*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 PDATE, internal->external for field FGBDT
CALL FUNCTION 'CONVERSION_EXIT_PDATE_OUTPUT'
  EXPORTING
    input =                      WA_Q3422-FGBDT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_Q3422-FGBDT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field BEGYE
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_Q3422-BEGYE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_Q3422-BEGYE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field ENDYE
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_Q3422-ENDYE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_Q3422-ENDYE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field TEMYE
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_Q3422-TEMYE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_Q3422-TEMYE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PDATE, internal->external for field FGBD2
CALL FUNCTION 'CONVERSION_EXIT_PDATE_OUTPUT'
  EXPORTING
    input =                      WA_Q3422-FGBD2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_Q3422-FGBD2.
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_Q3422_STR, 
DEAMT TYPE STRING,
WAERS TYPE STRING,
SBTTX TYPE STRING,
CITYC TYPE STRING,
CURUT TYPE STRING,
FAAGE TYPE STRING,
FANAM TYPE STRING,
FAVOR TYPE STRING,
ICTYP TYPE STRING,
ICNUM TYPE STRING,
FGBDT TYPE STRING,
WCITYT TYPE STRING,
CURUT1 TYPE STRING,
GESCF TYPE STRING,
GESCM TYPE STRING,
FANAT TYPE STRING,
NATTX TYPE STRING,
BEGMO TYPE STRING,
BEGYE TYPE STRING,
ENDMO TYPE STRING,
ENDYE TYPE STRING,
TEMMO TYPE STRING,
TEMYE TYPE STRING,
LANDX TYPE STRING,
FANM2 TYPE STRING,
FAVO2 TYPE STRING,
ICTY2 TYPE STRING,
ICNM2 TYPE STRING,
FGBD2 TYPE STRING,
FANA2 TYPE STRING,
NATT2 TYPE STRING,
NTX01 TYPE STRING,
NTX02 TYPE STRING,
NTX03 TYPE STRING,
NTX04 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_Q3422_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_Q3422_STR-DEAMT sy-vline 
WA_Q3422_STR-WAERS sy-vline 
WA_Q3422_STR-SBTTX sy-vline 
WA_Q3422_STR-CITYC sy-vline 
WA_Q3422_STR-CURUT sy-vline 
WA_Q3422_STR-FAAGE sy-vline 
WA_Q3422_STR-FANAM sy-vline 
WA_Q3422_STR-FAVOR sy-vline 
WA_Q3422_STR-ICTYP sy-vline 
WA_Q3422_STR-ICNUM sy-vline 
WA_Q3422_STR-FGBDT sy-vline 
WA_Q3422_STR-WCITYT sy-vline 
WA_Q3422_STR-CURUT1 sy-vline 
WA_Q3422_STR-GESCF sy-vline 
WA_Q3422_STR-GESCM sy-vline 
WA_Q3422_STR-FANAT sy-vline 
WA_Q3422_STR-NATTX sy-vline 
WA_Q3422_STR-BEGMO sy-vline 
WA_Q3422_STR-BEGYE sy-vline 
WA_Q3422_STR-ENDMO sy-vline 
WA_Q3422_STR-ENDYE sy-vline 
WA_Q3422_STR-TEMMO sy-vline 
WA_Q3422_STR-TEMYE sy-vline 
WA_Q3422_STR-LANDX sy-vline 
WA_Q3422_STR-FANM2 sy-vline 
WA_Q3422_STR-FAVO2 sy-vline 
WA_Q3422_STR-ICTY2 sy-vline 
WA_Q3422_STR-ICNM2 sy-vline 
WA_Q3422_STR-FGBD2 sy-vline 
WA_Q3422_STR-FANA2 sy-vline 
WA_Q3422_STR-NATT2 sy-vline 
WA_Q3422_STR-NTX01 sy-vline 
WA_Q3422_STR-NTX02 sy-vline 
WA_Q3422_STR-NTX03 sy-vline 
WA_Q3422_STR-NTX04 sy-vline      INTO ld_text SEPARATED BY SPACE.

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