ABAP Select data from SAP table JIT_HD_IT_CO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM JIT_HD_IT_CO
*  INTO TABLE @DATA(IT_JIT_HD_IT_CO2).
*--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_JIT_HD_IT_CO INDEX 1 INTO DATA(WA_JIT_HD_IT_CO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<JIT_HD_IT_CO>-MANDT = 1.
<JIT_HD_IT_CO>-JINUM = 1.
<JIT_HD_IT_CO>-CUSTO = 1.
<JIT_HD_IT_CO>-PRODN = 1.
<JIT_HD_IT_CO>-SEQNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_JIT_HD_IT_CO-VETYP, sy-vline,
  WA_JIT_HD_IT_CO-VEHID, sy-vline,
  WA_JIT_HD_IT_CO-TEXHD, sy-vline,
  WA_JIT_HD_IT_CO-SSPEZ, sy-vline,
  WA_JIT_HD_IT_CO-NACHB, sy-vline,
  WA_JIT_HD_IT_CO-ABTYP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_JIT_HD_IT_CO 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_JIT_HD_IT_CO 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_JIT_HD_IT_CO INTO WA_JIT_HD_IT_CO.


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

*Conversion exit ALPHA, internal->external for field VBELN_VL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_JIT_HD_IT_CO-VBELN_VL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_JIT_HD_IT_CO-VBELN_VL.
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_JIT_HD_IT_CO_STR, 
MANDT TYPE STRING,
JINUM TYPE STRING,
CUSTO TYPE STRING,
PRODN TYPE STRING,
SEQNR TYPE STRING,
VETYP TYPE STRING,
VEHID TYPE STRING,
TEXHD TYPE STRING,
SSPEZ TYPE STRING,
NACHB TYPE STRING,
ABTYP TYPE STRING,
ARCHI TYPE STRING,
DDATA TYPE STRING,
RANGE TYPE STRING,
MANDT_IT TYPE STRING,
POSID TYPE STRING,
JINUM_IT TYPE STRING,
ANLIE TYPE STRING,
CNTRL TYPE STRING,
PDATE TYPE STRING,
EXTST TYPE STRING,
EXDAT TYPE STRING,
INTST TYPE STRING,
INDAT TYPE STRING,
FERPA TYPE STRING,
RUECK TYPE STRING,
BACKF TYPE STRING,
EXIDV TYPE STRING,
DDATE TYPE STRING,
VBELN_VL TYPE STRING,
DCREA TYPE STRING,
AGTSL TYPE STRING,
GRPIN TYPE STRING,
GRIND TYPE STRING,
BWEXT TYPE STRING,
RDATE TYPE STRING,
POSNR_VL TYPE STRING,
TEXIT TYPE STRING,
CGARC TYPE STRING,
OUTEX TYPE STRING,
GIPOS TYPE STRING,
MANDT_CO TYPE STRING,
POSID_CO TYPE STRING,
MATID TYPE STRING,
QUANT TYPE STRING,
TEXCO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_JIT_HD_IT_CO_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_JIT_HD_IT_CO_STR-MANDT sy-vline 
WA_JIT_HD_IT_CO_STR-JINUM sy-vline 
WA_JIT_HD_IT_CO_STR-CUSTO sy-vline 
WA_JIT_HD_IT_CO_STR-PRODN sy-vline 
WA_JIT_HD_IT_CO_STR-SEQNR sy-vline 
WA_JIT_HD_IT_CO_STR-VETYP sy-vline 
WA_JIT_HD_IT_CO_STR-VEHID sy-vline 
WA_JIT_HD_IT_CO_STR-TEXHD sy-vline 
WA_JIT_HD_IT_CO_STR-SSPEZ sy-vline 
WA_JIT_HD_IT_CO_STR-NACHB sy-vline 
WA_JIT_HD_IT_CO_STR-ABTYP sy-vline 
WA_JIT_HD_IT_CO_STR-ARCHI sy-vline 
WA_JIT_HD_IT_CO_STR-DDATA sy-vline 
WA_JIT_HD_IT_CO_STR-RANGE sy-vline 
WA_JIT_HD_IT_CO_STR-MANDT_IT sy-vline 
WA_JIT_HD_IT_CO_STR-POSID sy-vline 
WA_JIT_HD_IT_CO_STR-JINUM_IT sy-vline 
WA_JIT_HD_IT_CO_STR-ANLIE sy-vline 
WA_JIT_HD_IT_CO_STR-CNTRL sy-vline 
WA_JIT_HD_IT_CO_STR-PDATE sy-vline 
WA_JIT_HD_IT_CO_STR-EXTST sy-vline 
WA_JIT_HD_IT_CO_STR-EXDAT sy-vline 
WA_JIT_HD_IT_CO_STR-INTST sy-vline 
WA_JIT_HD_IT_CO_STR-INDAT sy-vline 
WA_JIT_HD_IT_CO_STR-FERPA sy-vline 
WA_JIT_HD_IT_CO_STR-RUECK sy-vline 
WA_JIT_HD_IT_CO_STR-BACKF sy-vline 
WA_JIT_HD_IT_CO_STR-EXIDV sy-vline 
WA_JIT_HD_IT_CO_STR-DDATE sy-vline 
WA_JIT_HD_IT_CO_STR-VBELN_VL sy-vline 
WA_JIT_HD_IT_CO_STR-DCREA sy-vline 
WA_JIT_HD_IT_CO_STR-AGTSL sy-vline 
WA_JIT_HD_IT_CO_STR-GRPIN sy-vline 
WA_JIT_HD_IT_CO_STR-GRIND sy-vline 
WA_JIT_HD_IT_CO_STR-BWEXT sy-vline 
WA_JIT_HD_IT_CO_STR-RDATE sy-vline 
WA_JIT_HD_IT_CO_STR-POSNR_VL sy-vline 
WA_JIT_HD_IT_CO_STR-TEXIT sy-vline 
WA_JIT_HD_IT_CO_STR-CGARC sy-vline 
WA_JIT_HD_IT_CO_STR-OUTEX sy-vline 
WA_JIT_HD_IT_CO_STR-GIPOS sy-vline 
WA_JIT_HD_IT_CO_STR-MANDT_CO sy-vline 
WA_JIT_HD_IT_CO_STR-POSID_CO sy-vline 
WA_JIT_HD_IT_CO_STR-MATID sy-vline 
WA_JIT_HD_IT_CO_STR-QUANT sy-vline 
WA_JIT_HD_IT_CO_STR-TEXCO sy-vline      INTO ld_text SEPARATED BY SPACE.

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