ABAP Select data from SAP table J_5KMH_INV3 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP J_5KMH_INV3 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 J_5KMH_INV3. 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 J_5KMH_INV3 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_J_5KMH_INV3 TYPE STANDARD TABLE OF J_5KMH_INV3,
      WA_J_5KMH_INV3 TYPE J_5KMH_INV3,
      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: <J_5KMH_INV3> TYPE J_5KMH_INV3.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_J_5KMH_INV3.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM J_5KMH_INV3
  INTO TABLE IT_J_5KMH_INV3.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM J_5KMH_INV3
*  INTO TABLE @DATA(IT_J_5KMH_INV32).
*--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_J_5KMH_INV3 INDEX 1 INTO DATA(WA_J_5KMH_INV32).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_J_5KMH_INV3 ASSIGNING <J_5KMH_INV3>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<J_5KMH_INV3>-FSD = 1.
<J_5KMH_INV3>-ORG_NAME = 1.
<J_5KMH_INV3>-OKUD = 1.
<J_5KMH_INV3>-OKPO = 1.
<J_5KMH_INV3>-RNN = 1.

ENDLOOP.

LOOP AT IT_J_5KMH_INV3 INTO WA_J_5KMH_INV3.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_J_5KMH_INV3-DOCNO, sy-vline,
  WA_J_5KMH_INV3-COMP_DATE, sy-vline,
  WA_J_5KMH_INV3-MS_TYPE, sy-vline,
  WA_J_5KMH_INV3-PR_POS1, sy-vline,
  WA_J_5KMH_INV3-PR_NAME1, sy-vline,
  WA_J_5KMH_INV3-PR_POS2, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_J_5KMH_INV3 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_J_5KMH_INV3 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_J_5KMH_INV3 INTO WA_J_5KMH_INV3.


*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 CUNIT, internal->external for field UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_5KMH_INV3-UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_5KMH_INV3-UNIT.
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_J_5KMH_INV3_STR, 
FSD TYPE STRING,
ORG_NAME TYPE STRING,
OKUD TYPE STRING,
OKPO TYPE STRING,
RNN TYPE STRING,
DOCNO TYPE STRING,
COMP_DATE TYPE STRING,
MS_TYPE TYPE STRING,
PR_POS1 TYPE STRING,
PR_NAME1 TYPE STRING,
PR_POS2 TYPE STRING,
PR_NAME2 TYPE STRING,
PR_POS3 TYPE STRING,
PR_NAME3 TYPE STRING,
P_INV_DAT TYPE STRING,
P_INV_DOC TYPE STRING,
INV_B_DAT TYPE STRING,
INV_E_DAT TYPE STRING,
SER_NO_W TYPE STRING,
TOT_QNTY_W TYPE STRING,
TOT_AMNT_W TYPE STRING,
CHRMN_P TYPE STRING,
CHRMN_S TYPE STRING,
MBR1_P TYPE STRING,
MBR1_S TYPE STRING,
MBR2_P TYPE STRING,
MBR2_S TYPE STRING,
INV_T_FROM TYPE STRING,
INV_T_TO TYPE STRING,
DOC_DATE TYPE STRING,
FSS0 TYPE STRING,
UNIT TYPE STRING,
AA_SUM_QNTY TYPE STRING,
AA_SUM_VALUE TYPE STRING,
AD_SUM_QNTY TYPE STRING,
AD_SUM_VALUE TYPE STRING,
FST0 TYPE STRING,
FP TYPE STRING,
DISPLAY_MODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_J_5KMH_INV3_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_J_5KMH_INV3_STR-FSD sy-vline 
WA_J_5KMH_INV3_STR-ORG_NAME sy-vline 
WA_J_5KMH_INV3_STR-OKUD sy-vline 
WA_J_5KMH_INV3_STR-OKPO sy-vline 
WA_J_5KMH_INV3_STR-RNN sy-vline 
WA_J_5KMH_INV3_STR-DOCNO sy-vline 
WA_J_5KMH_INV3_STR-COMP_DATE sy-vline 
WA_J_5KMH_INV3_STR-MS_TYPE sy-vline 
WA_J_5KMH_INV3_STR-PR_POS1 sy-vline 
WA_J_5KMH_INV3_STR-PR_NAME1 sy-vline 
WA_J_5KMH_INV3_STR-PR_POS2 sy-vline 
WA_J_5KMH_INV3_STR-PR_NAME2 sy-vline 
WA_J_5KMH_INV3_STR-PR_POS3 sy-vline 
WA_J_5KMH_INV3_STR-PR_NAME3 sy-vline 
WA_J_5KMH_INV3_STR-P_INV_DAT sy-vline 
WA_J_5KMH_INV3_STR-P_INV_DOC sy-vline 
WA_J_5KMH_INV3_STR-INV_B_DAT sy-vline 
WA_J_5KMH_INV3_STR-INV_E_DAT sy-vline 
WA_J_5KMH_INV3_STR-SER_NO_W sy-vline 
WA_J_5KMH_INV3_STR-TOT_QNTY_W sy-vline 
WA_J_5KMH_INV3_STR-TOT_AMNT_W sy-vline 
WA_J_5KMH_INV3_STR-CHRMN_P sy-vline 
WA_J_5KMH_INV3_STR-CHRMN_S sy-vline 
WA_J_5KMH_INV3_STR-MBR1_P sy-vline 
WA_J_5KMH_INV3_STR-MBR1_S sy-vline 
WA_J_5KMH_INV3_STR-MBR2_P sy-vline 
WA_J_5KMH_INV3_STR-MBR2_S sy-vline 
WA_J_5KMH_INV3_STR-INV_T_FROM sy-vline 
WA_J_5KMH_INV3_STR-INV_T_TO sy-vline 
WA_J_5KMH_INV3_STR-DOC_DATE sy-vline 
WA_J_5KMH_INV3_STR-FSS0 sy-vline 
WA_J_5KMH_INV3_STR-UNIT sy-vline 
WA_J_5KMH_INV3_STR-AA_SUM_QNTY sy-vline 
WA_J_5KMH_INV3_STR-AA_SUM_VALUE sy-vline 
WA_J_5KMH_INV3_STR-AD_SUM_QNTY sy-vline 
WA_J_5KMH_INV3_STR-AD_SUM_VALUE sy-vline 
WA_J_5KMH_INV3_STR-FST0 sy-vline 
WA_J_5KMH_INV3_STR-FP sy-vline 
WA_J_5KMH_INV3_STR-DISPLAY_MODE sy-vline      INTO ld_text SEPARATED BY SPACE.

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