ABAP Select data from SAP table IGTMMYTOPCLSPND into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IGTMMYTOPCLSPND
*  INTO TABLE @DATA(IT_IGTMMYTOPCLSPND2).
*--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_IGTMMYTOPCLSPND INDEX 1 INTO DATA(WA_IGTMMYTOPCLSPND2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IGTMMYTOPCLSPND>-MANDT = 1.
<IGTMMYTOPCLSPND>-GRANTEEMGMTLONGSEQUENCENUMBER = 1.
<IGTMMYTOPCLSPND>-GRANTID = 1.
<IGTMMYTOPCLSPND>-REFERENCEDOCUMENT = 1.
<IGTMMYTOPCLSPND>-REFERENCEDOCUMENTITEM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IGTMMYTOPCLSPND-SPONSOREDCLASS, sy-vline,
  WA_IGTMMYTOPCLSPND-SPONSOREDPROGRAM, sy-vline,
  WA_IGTMMYTOPCLSPND-GRANTEEMGMTVALUETYPE, sy-vline,
  WA_IGTMMYTOPCLSPND-GRANTEEMGMTSPONSOR, sy-vline,
  WA_IGTMMYTOPCLSPND-GRANTLIFECYCLESTATUSNAME, sy-vline,
  WA_IGTMMYTOPCLSPND-FUNDNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IGTMMYTOPCLSPND 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_IGTMMYTOPCLSPND 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_IGTMMYTOPCLSPND INTO WA_IGTMMYTOPCLSPND.


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

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

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

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

*Conversion exit GJAHR, internal->external for field GRANTEEFISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_IGTMMYTOPCLSPND-GRANTEEFISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IGTMMYTOPCLSPND-GRANTEEFISCALYEAR.
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_IGTMMYTOPCLSPND_STR, 
MANDT TYPE STRING,
GRANTEEMGMTLONGSEQUENCENUMBER TYPE STRING,
GRANTID TYPE STRING,
REFERENCEDOCUMENT TYPE STRING,
REFERENCEDOCUMENTITEM TYPE STRING,
SPONSOREDCLASS TYPE STRING,
SPONSOREDPROGRAM TYPE STRING,
GRANTEEMGMTVALUETYPE TYPE STRING,
GRANTEEMGMTSPONSOR TYPE STRING,
GRANTLIFECYCLESTATUSNAME TYPE STRING,
FUNDNAME TYPE STRING,
GRANTCURRENCY TYPE STRING,
AMOUNTINGRANTCURRENCY TYPE STRING,
COMPANYCODECURRENCY TYPE STRING,
AMOUNTINCOMPANYCODECURRENCY TYPE STRING,
GRANTLIFECYCLESTATUS TYPE STRING,
GRANTTYPE TYPE STRING,
LEDGER TYPE STRING,
GRANTEEFISCALYEAR TYPE STRING,
COMPANYCODE TYPE STRING,
ISSTATISTICALITEM TYPE STRING,
BUSINESSTRANSACTIONTYPE TYPE STRING,
FUND TYPE STRING,
GTEEMBUDGETVALIDITYNUMBER TYPE STRING,
GTEEMBDGTVALIDITYNUMBERSTRTDTE TYPE STRING,
GTEEMBDGTVALIDITYNUMBERENDDATE TYPE STRING,
FINANCIALMANAGEMENTAREA TYPE STRING,
REFERENCEDOCUMENTTYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IGTMMYTOPCLSPND_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_IGTMMYTOPCLSPND_STR-MANDT sy-vline 
WA_IGTMMYTOPCLSPND_STR-GRANTEEMGMTLONGSEQUENCENUMBER sy-vline 
WA_IGTMMYTOPCLSPND_STR-GRANTID sy-vline 
WA_IGTMMYTOPCLSPND_STR-REFERENCEDOCUMENT sy-vline 
WA_IGTMMYTOPCLSPND_STR-REFERENCEDOCUMENTITEM sy-vline 
WA_IGTMMYTOPCLSPND_STR-SPONSOREDCLASS sy-vline 
WA_IGTMMYTOPCLSPND_STR-SPONSOREDPROGRAM sy-vline 
WA_IGTMMYTOPCLSPND_STR-GRANTEEMGMTVALUETYPE sy-vline 
WA_IGTMMYTOPCLSPND_STR-GRANTEEMGMTSPONSOR sy-vline 
WA_IGTMMYTOPCLSPND_STR-GRANTLIFECYCLESTATUSNAME sy-vline 
WA_IGTMMYTOPCLSPND_STR-FUNDNAME sy-vline 
WA_IGTMMYTOPCLSPND_STR-GRANTCURRENCY sy-vline 
WA_IGTMMYTOPCLSPND_STR-AMOUNTINGRANTCURRENCY sy-vline 
WA_IGTMMYTOPCLSPND_STR-COMPANYCODECURRENCY sy-vline 
WA_IGTMMYTOPCLSPND_STR-AMOUNTINCOMPANYCODECURRENCY sy-vline 
WA_IGTMMYTOPCLSPND_STR-GRANTLIFECYCLESTATUS sy-vline 
WA_IGTMMYTOPCLSPND_STR-GRANTTYPE sy-vline 
WA_IGTMMYTOPCLSPND_STR-LEDGER sy-vline 
WA_IGTMMYTOPCLSPND_STR-GRANTEEFISCALYEAR sy-vline 
WA_IGTMMYTOPCLSPND_STR-COMPANYCODE sy-vline 
WA_IGTMMYTOPCLSPND_STR-ISSTATISTICALITEM sy-vline 
WA_IGTMMYTOPCLSPND_STR-BUSINESSTRANSACTIONTYPE sy-vline 
WA_IGTMMYTOPCLSPND_STR-FUND sy-vline 
WA_IGTMMYTOPCLSPND_STR-GTEEMBUDGETVALIDITYNUMBER sy-vline 
WA_IGTMMYTOPCLSPND_STR-GTEEMBDGTVALIDITYNUMBERSTRTDTE sy-vline 
WA_IGTMMYTOPCLSPND_STR-GTEEMBDGTVALIDITYNUMBERENDDATE sy-vline 
WA_IGTMMYTOPCLSPND_STR-FINANCIALMANAGEMENTAREA sy-vline 
WA_IGTMMYTOPCLSPND_STR-REFERENCEDOCUMENTTYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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