ABAP Select data from SAP table AJITCALLHEADER into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM AJITCALLHEADER
*  INTO TABLE @DATA(IT_AJITCALLHEADER2).
*--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_AJITCALLHEADER INDEX 1 INTO DATA(WA_AJITCALLHEADER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<AJITCALLHEADER>-MANDT = 1.
<AJITCALLHEADER>-INTERNALJITCALLNUMBER = 1.
<AJITCALLHEADER>-EXTERNALJITCALLNUMBER = 1.
<AJITCALLHEADER>-JITCALLTYPE = 1.
<AJITCALLHEADER>-SHIPTOPARTY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_AJITCALLHEADER-SOLDTOPARTY, sy-vline,
  WA_AJITCALLHEADER-CUSTOMERPARTNERDESCRIPTION, sy-vline,
  WA_AJITCALLHEADER-ACTIVESUPPLIER, sy-vline,
  WA_AJITCALLHEADER-MATLUSAGEINDICATOR, sy-vline,
  WA_AJITCALLHEADER-SALESORGANIZATION, sy-vline,
  WA_AJITCALLHEADER-DISTRIBUTIONCHANNEL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_AJITCALLHEADER 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_AJITCALLHEADER 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_AJITCALLHEADER INTO WA_AJITCALLHEADER.


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

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

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

*Conversion exit MATN1, internal->external for field MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_AJITCALLHEADER-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AJITCALLHEADER-MATERIAL.
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_AJITCALLHEADER_STR, 
MANDT TYPE STRING,
INTERNALJITCALLNUMBER TYPE STRING,
EXTERNALJITCALLNUMBER TYPE STRING,
JITCALLTYPE TYPE STRING,
SHIPTOPARTY TYPE STRING,
SOLDTOPARTY TYPE STRING,
CUSTOMERPARTNERDESCRIPTION TYPE STRING,
ACTIVESUPPLIER TYPE STRING,
MATLUSAGEINDICATOR TYPE STRING,
SALESORGANIZATION TYPE STRING,
DISTRIBUTIONCHANNEL TYPE STRING,
DIVISION TYPE STRING,
JITLIFECYCLESTATUS TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATETIME TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
LASTCHANGEDATETIME TYPE STRING,
JITEXTSEQUENCENUMBER TYPE STRING,
VEHICLEIDENTIFICATIONNUMBER TYPE STRING,
VEHICLEMODEL TYPE STRING,
PLANT TYPE STRING,
JITEXTSTATUSATSUPPLIER TYPE STRING,
JITINTPROCESSINGSTATUS TYPE STRING,
COMPGRPMATL TYPE STRING,
MATERIAL TYPE STRING,
MATERIALBYCUSTOMER TYPE STRING,
DELIVERYCREATIONDATE TYPE STRING,
REQUIREMENTDATETIME TYPE STRING,
PLANNEDSHIPPINGDATETIME TYPE STRING,
MATERIALAVAILABILITYDATE TYPE STRING,
JITEXTSTATUSUPDTDON TYPE STRING,
JITINTSTATUSUPDTDON TYPE STRING,
TRANSMITTEDEXTSTATUSBYMFR TYPE STRING,
TRANSMITTEDEXTSTSUPDTDDTETME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_AJITCALLHEADER_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_AJITCALLHEADER_STR-MANDT sy-vline 
WA_AJITCALLHEADER_STR-INTERNALJITCALLNUMBER sy-vline 
WA_AJITCALLHEADER_STR-EXTERNALJITCALLNUMBER sy-vline 
WA_AJITCALLHEADER_STR-JITCALLTYPE sy-vline 
WA_AJITCALLHEADER_STR-SHIPTOPARTY sy-vline 
WA_AJITCALLHEADER_STR-SOLDTOPARTY sy-vline 
WA_AJITCALLHEADER_STR-CUSTOMERPARTNERDESCRIPTION sy-vline 
WA_AJITCALLHEADER_STR-ACTIVESUPPLIER sy-vline 
WA_AJITCALLHEADER_STR-MATLUSAGEINDICATOR sy-vline 
WA_AJITCALLHEADER_STR-SALESORGANIZATION sy-vline 
WA_AJITCALLHEADER_STR-DISTRIBUTIONCHANNEL sy-vline 
WA_AJITCALLHEADER_STR-DIVISION sy-vline 
WA_AJITCALLHEADER_STR-JITLIFECYCLESTATUS sy-vline 
WA_AJITCALLHEADER_STR-CREATEDBYUSER sy-vline 
WA_AJITCALLHEADER_STR-CREATIONDATETIME sy-vline 
WA_AJITCALLHEADER_STR-LASTCHANGEDBYUSER sy-vline 
WA_AJITCALLHEADER_STR-LASTCHANGEDATETIME sy-vline 
WA_AJITCALLHEADER_STR-JITEXTSEQUENCENUMBER sy-vline 
WA_AJITCALLHEADER_STR-VEHICLEIDENTIFICATIONNUMBER sy-vline 
WA_AJITCALLHEADER_STR-VEHICLEMODEL sy-vline 
WA_AJITCALLHEADER_STR-PLANT sy-vline 
WA_AJITCALLHEADER_STR-JITEXTSTATUSATSUPPLIER sy-vline 
WA_AJITCALLHEADER_STR-JITINTPROCESSINGSTATUS sy-vline 
WA_AJITCALLHEADER_STR-COMPGRPMATL sy-vline 
WA_AJITCALLHEADER_STR-MATERIAL sy-vline 
WA_AJITCALLHEADER_STR-MATERIALBYCUSTOMER sy-vline 
WA_AJITCALLHEADER_STR-DELIVERYCREATIONDATE sy-vline 
WA_AJITCALLHEADER_STR-REQUIREMENTDATETIME sy-vline 
WA_AJITCALLHEADER_STR-PLANNEDSHIPPINGDATETIME sy-vline 
WA_AJITCALLHEADER_STR-MATERIALAVAILABILITYDATE sy-vline 
WA_AJITCALLHEADER_STR-JITEXTSTATUSUPDTDON sy-vline 
WA_AJITCALLHEADER_STR-JITINTSTATUSUPDTDON sy-vline 
WA_AJITCALLHEADER_STR-TRANSMITTEDEXTSTATUSBYMFR sy-vline 
WA_AJITCALLHEADER_STR-TRANSMITTEDEXTSTSUPDTDDTETME sy-vline      INTO ld_text SEPARATED BY SPACE.

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