ABAP Select data from SAP table JITDIACO 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 JITDIACO 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 JITDIACO. 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 JITDIACO 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_JITDIACO TYPE STANDARD TABLE OF JITDIACO,
      WA_JITDIACO TYPE JITDIACO,
      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: <JITDIACO> TYPE JITDIACO.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM JITDIACO
*  INTO TABLE @DATA(IT_JITDIACO2).
*--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_JITDIACO INDEX 1 INTO DATA(WA_JITDIACO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<JITDIACO>-MANDT = 1.
<JITDIACO>-POSID = 1.
<JITDIACO>-MATID = 1.
<JITDIACO>-QUANT = 1.
<JITDIACO>-TEXCO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_JITDIACO-MATNR, sy-vline,
  WA_JITDIACO-VBELN, sy-vline,
  WA_JITDIACO-POSNR, sy-vline,
  WA_JITDIACO-MEINS, sy-vline,
  WA_JITDIACO-KDMAT, sy-vline,
  WA_JITDIACO-ARKTX, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_JITDIACO 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_JITDIACO 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_JITDIACO INTO WA_JITDIACO.


*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 MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_JITDIACO-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_JITDIACO-MATNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit MATN1, internal->external for field SATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_JITDIACO-SATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_JITDIACO-SATNR.
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_JITDIACO_STR, 
MANDT TYPE STRING,
POSID TYPE STRING,
MATID TYPE STRING,
QUANT TYPE STRING,
TEXCO TYPE STRING,
MATNR TYPE STRING,
VBELN TYPE STRING,
POSNR TYPE STRING,
MEINS TYPE STRING,
KDMAT TYPE STRING,
ARKTX TYPE STRING,
ZMENG TYPE STRING,
ZIEME TYPE STRING,
UMZIZ TYPE STRING,
UMZIN TYPE STRING,
VRKME TYPE STRING,
UMVKZ TYPE STRING,
UMVKN TYPE STRING,
ABGRU TYPE STRING,
KZFME TYPE STRING,
LGORT TYPE STRING,
VSTEL TYPE STRING,
SATNR TYPE STRING,
MAABC TYPE STRING,
LGPRO TYPE STRING,
WERKS_MAT TYPE STRING,
VHART TYPE STRING,
MAGRV TYPE STRING,
UNTTO TYPE STRING,
UEBTO TYPE STRING,
CUOBJ TYPE STRING,
BAFLU TYPE STRING,
VMENG TYPE STRING,
BOMEX TYPE STRING,
KTEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_JITDIACO_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_JITDIACO_STR-MANDT sy-vline 
WA_JITDIACO_STR-POSID sy-vline 
WA_JITDIACO_STR-MATID sy-vline 
WA_JITDIACO_STR-QUANT sy-vline 
WA_JITDIACO_STR-TEXCO sy-vline 
WA_JITDIACO_STR-MATNR sy-vline 
WA_JITDIACO_STR-VBELN sy-vline 
WA_JITDIACO_STR-POSNR sy-vline 
WA_JITDIACO_STR-MEINS sy-vline 
WA_JITDIACO_STR-KDMAT sy-vline 
WA_JITDIACO_STR-ARKTX sy-vline 
WA_JITDIACO_STR-ZMENG sy-vline 
WA_JITDIACO_STR-ZIEME sy-vline 
WA_JITDIACO_STR-UMZIZ sy-vline 
WA_JITDIACO_STR-UMZIN sy-vline 
WA_JITDIACO_STR-VRKME sy-vline 
WA_JITDIACO_STR-UMVKZ sy-vline 
WA_JITDIACO_STR-UMVKN sy-vline 
WA_JITDIACO_STR-ABGRU sy-vline 
WA_JITDIACO_STR-KZFME sy-vline 
WA_JITDIACO_STR-LGORT sy-vline 
WA_JITDIACO_STR-VSTEL sy-vline 
WA_JITDIACO_STR-SATNR sy-vline 
WA_JITDIACO_STR-MAABC sy-vline 
WA_JITDIACO_STR-LGPRO sy-vline 
WA_JITDIACO_STR-WERKS_MAT sy-vline 
WA_JITDIACO_STR-VHART sy-vline 
WA_JITDIACO_STR-MAGRV sy-vline 
WA_JITDIACO_STR-UNTTO sy-vline 
WA_JITDIACO_STR-UEBTO sy-vline 
WA_JITDIACO_STR-CUOBJ sy-vline 
WA_JITDIACO_STR-BAFLU sy-vline 
WA_JITDIACO_STR-VMENG sy-vline 
WA_JITDIACO_STR-BOMEX sy-vline 
WA_JITDIACO_STR-KTEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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