ABAP Select data from SAP table JITODIAIT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM JITODIAIT
*  INTO TABLE @DATA(IT_JITODIAIT2).
*--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_JITODIAIT INDEX 1 INTO DATA(WA_JITODIAIT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<JITODIAIT>-MANDT = 1.
<JITODIAIT>-OUTPO = 1.
<JITODIAIT>-OUTID = 1.
<JITODIAIT>-POSID = 1.
<JITODIAIT>-CNTRL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_JITODIAIT-LIFNR, sy-vline,
  WA_JITODIAIT-GRPIN, sy-vline,
  WA_JITODIAIT-GRIND, sy-vline,
  WA_JITODIAIT-INTST, sy-vline,
  WA_JITODIAIT-INDAT, sy-vline,
  WA_JITODIAIT-CRDAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_JITODIAIT 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_JITODIAIT 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_JITODIAIT INTO WA_JITODIAIT.


*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 LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_JITODIAIT-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_JITODIAIT-LIFNR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field LFSNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_JITODIAIT-LFSNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_JITODIAIT-LFSNR.
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_JITODIAIT_STR, 
MANDT TYPE STRING,
OUTPO TYPE STRING,
OUTID TYPE STRING,
POSID TYPE STRING,
CNTRL TYPE STRING,
LIFNR TYPE STRING,
GRPIN TYPE STRING,
GRIND TYPE STRING,
INTST TYPE STRING,
INDAT TYPE STRING,
CRDAT TYPE STRING,
RDATE TYPE STRING,
FLAGS TYPE STRING,
TEXIT TYPE STRING,
WERKS TYPE STRING,
ABLAD TYPE STRING,
UNLPT TYPE STRING,
PRVBE TYPE STRING,
JOSUP TYPE STRING,
IDOCS TYPE STRING,
MECRE TYPE STRING,
AVISR TYPE STRING,
DELIV TYPE STRING,
DLCNS TYPE STRING,
GRPOS TYPE STRING,
ARCHI TYPE STRING,
PABPRF TYPE STRING,
JINUM TYPE STRING,
IDATUM TYPE STRING,
IZEIT TYPE STRING,
RDATUM TYPE STRING,
RZEIT TYPE STRING,
CDATUM TYPE STRING,
CZEIT TYPE STRING,
ANLIE TYPE STRING,
LIUMF TYPE STRING,
DOLOG TYPE STRING,
MSTRALRT TYPE STRING,
UPDKZ TYPE STRING,
LFSNR TYPE STRING,
POSNR_VL TYPE STRING,
PKUMW TYPE STRING,
LFDAT TYPE STRING,
LFUHR TYPE STRING,
JITSCPRF TYPE STRING,
TOLINDTD TYPE STRING,
TOLINDTI 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_JITODIAIT_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_JITODIAIT_STR-MANDT sy-vline 
WA_JITODIAIT_STR-OUTPO sy-vline 
WA_JITODIAIT_STR-OUTID sy-vline 
WA_JITODIAIT_STR-POSID sy-vline 
WA_JITODIAIT_STR-CNTRL sy-vline 
WA_JITODIAIT_STR-LIFNR sy-vline 
WA_JITODIAIT_STR-GRPIN sy-vline 
WA_JITODIAIT_STR-GRIND sy-vline 
WA_JITODIAIT_STR-INTST sy-vline 
WA_JITODIAIT_STR-INDAT sy-vline 
WA_JITODIAIT_STR-CRDAT sy-vline 
WA_JITODIAIT_STR-RDATE sy-vline 
WA_JITODIAIT_STR-FLAGS sy-vline 
WA_JITODIAIT_STR-TEXIT sy-vline 
WA_JITODIAIT_STR-WERKS sy-vline 
WA_JITODIAIT_STR-ABLAD sy-vline 
WA_JITODIAIT_STR-UNLPT sy-vline 
WA_JITODIAIT_STR-PRVBE sy-vline 
WA_JITODIAIT_STR-JOSUP sy-vline 
WA_JITODIAIT_STR-IDOCS sy-vline 
WA_JITODIAIT_STR-MECRE sy-vline 
WA_JITODIAIT_STR-AVISR sy-vline 
WA_JITODIAIT_STR-DELIV sy-vline 
WA_JITODIAIT_STR-DLCNS sy-vline 
WA_JITODIAIT_STR-GRPOS sy-vline 
WA_JITODIAIT_STR-ARCHI sy-vline 
WA_JITODIAIT_STR-PABPRF sy-vline 
WA_JITODIAIT_STR-JINUM sy-vline 
WA_JITODIAIT_STR-IDATUM sy-vline 
WA_JITODIAIT_STR-IZEIT sy-vline 
WA_JITODIAIT_STR-RDATUM sy-vline 
WA_JITODIAIT_STR-RZEIT sy-vline 
WA_JITODIAIT_STR-CDATUM sy-vline 
WA_JITODIAIT_STR-CZEIT sy-vline 
WA_JITODIAIT_STR-ANLIE sy-vline 
WA_JITODIAIT_STR-LIUMF sy-vline 
WA_JITODIAIT_STR-DOLOG sy-vline 
WA_JITODIAIT_STR-MSTRALRT sy-vline 
WA_JITODIAIT_STR-UPDKZ sy-vline 
WA_JITODIAIT_STR-LFSNR sy-vline 
WA_JITODIAIT_STR-POSNR_VL sy-vline 
WA_JITODIAIT_STR-PKUMW sy-vline 
WA_JITODIAIT_STR-LFDAT sy-vline 
WA_JITODIAIT_STR-LFUHR sy-vline 
WA_JITODIAIT_STR-JITSCPRF sy-vline 
WA_JITODIAIT_STR-TOLINDTD sy-vline 
WA_JITODIAIT_STR-TOLINDTI sy-vline 
WA_JITODIAIT_STR-REFTY1 sy-vline 
WA_JITODIAIT_STR-LEVTY1 sy-vline 
WA_JITODIAIT_STR-REFTX1 sy-vline 
WA_JITODIAIT_STR-REFTY2 sy-vline 
WA_JITODIAIT_STR-LEVTY2 sy-vline 
WA_JITODIAIT_STR-REFTX2 sy-vline 
WA_JITODIAIT_STR-REFTY3 sy-vline 
WA_JITODIAIT_STR-LEVTY3 sy-vline 
WA_JITODIAIT_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.