ABAP Select data from SAP table IAVAILBUD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IAVAILBUD
*  INTO TABLE @DATA(IT_IAVAILBUD2).
*--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_IAVAILBUD INDEX 1 INTO DATA(WA_IAVAILBUD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IAVAILBUD>-MANDT = 1.
<IAVAILBUD>-FINANCIALMANAGEMENTAREA = 1.
<IAVAILBUD>-FINMGMTAREAFISCALYEAR = 1.
<IAVAILBUD>-BUDGETCATEGORY = 1.
<IAVAILBUD>-AVAILABILITYCONTROLLEDGER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IAVAILBUD-BDGTCASHEFFECTIVITYFISCALYEAR, sy-vline,
  WA_IAVAILBUD-BUDGETEDFUND, sy-vline,
  WA_IAVAILBUD-BUDGETEDFUNDSCENTER, sy-vline,
  WA_IAVAILBUD-BUDGETEDCOMMITMENTITEM, sy-vline,
  WA_IAVAILBUD-BUDGETEDFUNCTIONALAREA, sy-vline,
  WA_IAVAILBUD-BUDGETEDGRANTID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IAVAILBUD 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_IAVAILBUD 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_IAVAILBUD INTO WA_IAVAILBUD.


*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 FINMGMTAREAFISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_IAVAILBUD-FINMGMTAREAFISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IAVAILBUD-FINMGMTAREAFISCALYEAR.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit FMCIL, internal->external for field BUDGETEDCOMMITMENTITEM
CALL FUNCTION 'CONVERSION_EXIT_FMCIL_OUTPUT'
  EXPORTING
    input =                      WA_IAVAILBUD-BUDGETEDCOMMITMENTITEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IAVAILBUD-BUDGETEDCOMMITMENTITEM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BUDGETEDGRANTID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IAVAILBUD-BUDGETEDGRANTID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IAVAILBUD-BUDGETEDGRANTID.
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_IAVAILBUD_STR, 
MANDT TYPE STRING,
FINANCIALMANAGEMENTAREA TYPE STRING,
FINMGMTAREAFISCALYEAR TYPE STRING,
BUDGETCATEGORY TYPE STRING,
AVAILABILITYCONTROLLEDGER TYPE STRING,
BDGTCASHEFFECTIVITYFISCALYEAR TYPE STRING,
BUDGETEDFUND TYPE STRING,
BUDGETEDFUNDSCENTER TYPE STRING,
BUDGETEDCOMMITMENTITEM TYPE STRING,
BUDGETEDFUNCTIONALAREA TYPE STRING,
BUDGETEDGRANTID TYPE STRING,
BUDGETEDFUNDEDPROGRAM TYPE STRING,
BUDGETEDBUDGETPERIOD TYPE STRING,
BUDGETEDFUNDSMGMTCUSTOMERFIELD TYPE STRING,
FINANCIALMANAGEMENTAREACRCY TYPE STRING,
CONSUMABLEAMOUNTINFMACRCY TYPE STRING,
CONSUMEDAMOUNTINFMACRCY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IAVAILBUD_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_IAVAILBUD_STR-MANDT sy-vline 
WA_IAVAILBUD_STR-FINANCIALMANAGEMENTAREA sy-vline 
WA_IAVAILBUD_STR-FINMGMTAREAFISCALYEAR sy-vline 
WA_IAVAILBUD_STR-BUDGETCATEGORY sy-vline 
WA_IAVAILBUD_STR-AVAILABILITYCONTROLLEDGER sy-vline 
WA_IAVAILBUD_STR-BDGTCASHEFFECTIVITYFISCALYEAR sy-vline 
WA_IAVAILBUD_STR-BUDGETEDFUND sy-vline 
WA_IAVAILBUD_STR-BUDGETEDFUNDSCENTER sy-vline 
WA_IAVAILBUD_STR-BUDGETEDCOMMITMENTITEM sy-vline 
WA_IAVAILBUD_STR-BUDGETEDFUNCTIONALAREA sy-vline 
WA_IAVAILBUD_STR-BUDGETEDGRANTID sy-vline 
WA_IAVAILBUD_STR-BUDGETEDFUNDEDPROGRAM sy-vline 
WA_IAVAILBUD_STR-BUDGETEDBUDGETPERIOD sy-vline 
WA_IAVAILBUD_STR-BUDGETEDFUNDSMGMTCUSTOMERFIELD sy-vline 
WA_IAVAILBUD_STR-FINANCIALMANAGEMENTAREACRCY sy-vline 
WA_IAVAILBUD_STR-CONSUMABLEAMOUNTINFMACRCY sy-vline 
WA_IAVAILBUD_STR-CONSUMEDAMOUNTINFMACRCY sy-vline      INTO ld_text SEPARATED BY SPACE.

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