ABAP Select data from SAP table JITODIAHD into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM JITODIAHD
*  INTO TABLE @DATA(IT_JITODIAHD2).
*--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_JITODIAHD INDEX 1 INTO DATA(WA_JITODIAHD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<JITODIAHD>-MANDT = 1.
<JITODIAHD>-OUTID = 1.
<JITODIAHD>-JCTYP = 1.
<JITODIAHD>-PRODN = 1.
<JITODIAHD>-SEQNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_JITODIAHD-NACHB, sy-vline,
  WA_JITODIAHD-CREAT, sy-vline,
  WA_JITODIAHD-TEXHD, sy-vline,
  WA_JITODIAHD-JINUM, sy-vline,
  WA_JITODIAHD-CUSTO, sy-vline,
  WA_JITODIAHD-VETYP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_JITODIAHD 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_JITODIAHD 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_JITODIAHD INTO WA_JITODIAHD.


*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_JITODIAHD_STR, 
MANDT TYPE STRING,
OUTID TYPE STRING,
JCTYP TYPE STRING,
PRODN TYPE STRING,
SEQNR TYPE STRING,
NACHB TYPE STRING,
CREAT TYPE STRING,
TEXHD TYPE STRING,
JINUM TYPE STRING,
CUSTO TYPE STRING,
VETYP TYPE STRING,
VEHID TYPE STRING,
SSPEZ TYPE STRING,
ABTYP TYPE STRING,
ARCHI TYPE STRING,
DDATA TYPE STRING,
SEQNR_IN TYPE STRING,
REFTY1 TYPE STRING,
LEVTY1 TYPE STRING,
REFTX1 TYPE STRING,
REFTY2 TYPE STRING,
LEVTY2 TYPE STRING,
REFTX2 TYPE STRING,
REFTY3 TYPE STRING,
LEVTY3 TYPE STRING,
REFTX3 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_JITODIAHD_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_JITODIAHD_STR-MANDT sy-vline 
WA_JITODIAHD_STR-OUTID sy-vline 
WA_JITODIAHD_STR-JCTYP sy-vline 
WA_JITODIAHD_STR-PRODN sy-vline 
WA_JITODIAHD_STR-SEQNR sy-vline 
WA_JITODIAHD_STR-NACHB sy-vline 
WA_JITODIAHD_STR-CREAT sy-vline 
WA_JITODIAHD_STR-TEXHD sy-vline 
WA_JITODIAHD_STR-JINUM sy-vline 
WA_JITODIAHD_STR-CUSTO sy-vline 
WA_JITODIAHD_STR-VETYP sy-vline 
WA_JITODIAHD_STR-VEHID sy-vline 
WA_JITODIAHD_STR-SSPEZ sy-vline 
WA_JITODIAHD_STR-ABTYP sy-vline 
WA_JITODIAHD_STR-ARCHI sy-vline 
WA_JITODIAHD_STR-DDATA sy-vline 
WA_JITODIAHD_STR-SEQNR_IN sy-vline 
WA_JITODIAHD_STR-REFTY1 sy-vline 
WA_JITODIAHD_STR-LEVTY1 sy-vline 
WA_JITODIAHD_STR-REFTX1 sy-vline 
WA_JITODIAHD_STR-REFTY2 sy-vline 
WA_JITODIAHD_STR-LEVTY2 sy-vline 
WA_JITODIAHD_STR-REFTX2 sy-vline 
WA_JITODIAHD_STR-REFTY3 sy-vline 
WA_JITODIAHD_STR-LEVTY3 sy-vline 
WA_JITODIAHD_STR-REFTX3 sy-vline      INTO ld_text SEPARATED BY SPACE.

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