ABAP Select data from SAP table IBDGTDOCHEADERTP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IBDGTDOCHEADERTP
*  INTO TABLE @DATA(IT_IBDGTDOCHEADERTP2).
*--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_IBDGTDOCHEADERTP INDEX 1 INTO DATA(WA_IBDGTDOCHEADERTP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IBDGTDOCHEADERTP>-MANDT = 1.
<IBDGTDOCHEADERTP>-CONTROLLINGAREA = 1.
<IBDGTDOCHEADERTP>-BUDGETDOCUMENTYEAR = 1.
<IBDGTDOCHEADERTP>-BUDGETDOCUMENT = 1.
<IBDGTDOCHEADERTP>-CONTROLLINGAREAFOREDIT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IBDGTDOCHEADERTP-BUDGETDOCUMENTYEARFOREDIT, sy-vline,
  WA_IBDGTDOCHEADERTP-BUDGETDOCUMENTFOREDIT, sy-vline,
  WA_IBDGTDOCHEADERTP-BUDGETDOCUMENTTYPE, sy-vline,
  WA_IBDGTDOCHEADERTP-BUDGETCATEGORYUSAGE, sy-vline,
  WA_IBDGTDOCHEADERTP-BUDGETPROCESSGROUP, sy-vline,
  WA_IBDGTDOCHEADERTP-PLANNINGCATEGORY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IBDGTDOCHEADERTP 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_IBDGTDOCHEADERTP 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_IBDGTDOCHEADERTP INTO WA_IBDGTDOCHEADERTP.


*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 GJAHR, internal->external for field BUDGETDOCUMENTYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_IBDGTDOCHEADERTP-BUDGETDOCUMENTYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IBDGTDOCHEADERTP-BUDGETDOCUMENTYEAR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit GJAHR, internal->external for field BUDGETDOCUMENTYEARFOREDIT
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_IBDGTDOCHEADERTP-BUDGETDOCUMENTYEARFOREDIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IBDGTDOCHEADERTP-BUDGETDOCUMENTYEARFOREDIT.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field REVERSALREFBUDGETDOCUMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IBDGTDOCHEADERTP-REVERSALREFBUDGETDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IBDGTDOCHEADERTP-REVERSALREFBUDGETDOCUMENT.
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_IBDGTDOCHEADERTP_STR, 
MANDT TYPE STRING,
CONTROLLINGAREA TYPE STRING,
BUDGETDOCUMENTYEAR TYPE STRING,
BUDGETDOCUMENT TYPE STRING,
CONTROLLINGAREAFOREDIT TYPE STRING,
BUDGETDOCUMENTYEARFOREDIT TYPE STRING,
BUDGETDOCUMENTFOREDIT TYPE STRING,
BUDGETDOCUMENTTYPE TYPE STRING,
BUDGETCATEGORYUSAGE TYPE STRING,
BUDGETPROCESSGROUP TYPE STRING,
PLANNINGCATEGORY TYPE STRING,
POSTINGDATE TYPE STRING,
DOCUMENTDATE TYPE STRING,
BUDGETINGRESPONSIBLEPERSONNAME TYPE STRING,
BUDGETDOCUMENTSTATUS TYPE STRING,
BUDGETDOCUMENTDESCRIPTION TYPE STRING,
REVERSALREFBUDGETDOCUMENT TYPE STRING,
REVERSALREASON TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATE TYPE STRING,
CREATIONTIME TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
LASTCHANGEDATE TYPE STRING,
LASTCHANGETIME TYPE STRING,
DOCUMENTLASTCHANGEDDATEANDTIME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IBDGTDOCHEADERTP_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_IBDGTDOCHEADERTP_STR-MANDT sy-vline 
WA_IBDGTDOCHEADERTP_STR-CONTROLLINGAREA sy-vline 
WA_IBDGTDOCHEADERTP_STR-BUDGETDOCUMENTYEAR sy-vline 
WA_IBDGTDOCHEADERTP_STR-BUDGETDOCUMENT sy-vline 
WA_IBDGTDOCHEADERTP_STR-CONTROLLINGAREAFOREDIT sy-vline 
WA_IBDGTDOCHEADERTP_STR-BUDGETDOCUMENTYEARFOREDIT sy-vline 
WA_IBDGTDOCHEADERTP_STR-BUDGETDOCUMENTFOREDIT sy-vline 
WA_IBDGTDOCHEADERTP_STR-BUDGETDOCUMENTTYPE sy-vline 
WA_IBDGTDOCHEADERTP_STR-BUDGETCATEGORYUSAGE sy-vline 
WA_IBDGTDOCHEADERTP_STR-BUDGETPROCESSGROUP sy-vline 
WA_IBDGTDOCHEADERTP_STR-PLANNINGCATEGORY sy-vline 
WA_IBDGTDOCHEADERTP_STR-POSTINGDATE sy-vline 
WA_IBDGTDOCHEADERTP_STR-DOCUMENTDATE sy-vline 
WA_IBDGTDOCHEADERTP_STR-BUDGETINGRESPONSIBLEPERSONNAME sy-vline 
WA_IBDGTDOCHEADERTP_STR-BUDGETDOCUMENTSTATUS sy-vline 
WA_IBDGTDOCHEADERTP_STR-BUDGETDOCUMENTDESCRIPTION sy-vline 
WA_IBDGTDOCHEADERTP_STR-REVERSALREFBUDGETDOCUMENT sy-vline 
WA_IBDGTDOCHEADERTP_STR-REVERSALREASON sy-vline 
WA_IBDGTDOCHEADERTP_STR-CREATEDBYUSER sy-vline 
WA_IBDGTDOCHEADERTP_STR-CREATIONDATE sy-vline 
WA_IBDGTDOCHEADERTP_STR-CREATIONTIME sy-vline 
WA_IBDGTDOCHEADERTP_STR-LASTCHANGEDBYUSER sy-vline 
WA_IBDGTDOCHEADERTP_STR-LASTCHANGEDATE sy-vline 
WA_IBDGTDOCHEADERTP_STR-LASTCHANGETIME sy-vline 
WA_IBDGTDOCHEADERTP_STR-DOCUMENTLASTCHANGEDDATEANDTIME sy-vline      INTO ld_text SEPARATED BY SPACE.

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