ABAP Select data from SAP table IGMIAB into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IGMIAB
*  INTO TABLE @DATA(IT_IGMIAB2).
*--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_IGMIAB INDEX 1 INTO DATA(WA_IGMIAB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IGMIAB>-MANDT = 1.
<IGMIAB>-GRANTEEMGMTLONGSEQUENCENUMBER = 1.
<IGMIAB>-LEDGER = 1.
<IGMIAB>-FISCALYEAR = 1.
<IGMIAB>-FINMGMTAREAFISCALYEARVARIANT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IGMIAB-TRANSACTIONCURRENCY, sy-vline,
  WA_IGMIAB-FISCALYEARPERIOD, sy-vline,
  WA_IGMIAB-COMPANYCODE, sy-vline,
  WA_IGMIAB-GRANTID, sy-vline,
  WA_IGMIAB-SPONSOREDPROGRAM, sy-vline,
  WA_IGMIAB-SPONSOREDCLASS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IGMIAB 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_IGMIAB 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_IGMIAB INTO WA_IGMIAB.


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

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

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field REFERENCEDOCUMENTLOGICALSYSTEM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IGMIAB-REFERENCEDOCUMENTLOGICALSYSTEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IGMIAB-REFERENCEDOCUMENTLOGICALSYSTEM.
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_IGMIAB_STR, 
MANDT TYPE STRING,
GRANTEEMGMTLONGSEQUENCENUMBER TYPE STRING,
LEDGER TYPE STRING,
FISCALYEAR TYPE STRING,
FINMGMTAREAFISCALYEARVARIANT TYPE STRING,
TRANSACTIONCURRENCY TYPE STRING,
FISCALYEARPERIOD TYPE STRING,
COMPANYCODE TYPE STRING,
GRANTID TYPE STRING,
SPONSOREDPROGRAM TYPE STRING,
SPONSOREDCLASS TYPE STRING,
GTEEMBUDGETVALIDITYNUMBER TYPE STRING,
FUND TYPE STRING,
GRANTEEMGMTVALUETYPE TYPE STRING,
BUSINESSTRANSACTIONTYPE TYPE STRING,
ISSTATISTICALITEM TYPE STRING,
GRANTEEFISCALYEAR TYPE STRING,
LOGICALSYSTEM TYPE STRING,
COMPANYCODECURRENCY TYPE STRING,
AMOUNTINTRANSACTIONCURRENCY TYPE STRING,
POSTINGDATE TYPE STRING,
REFERENCEDOCUMENT TYPE STRING,
REFERENCEDOCUMENTITEM TYPE STRING,
REFDOCACCOUNTASSIGNMENT TYPE STRING,
REFERENCEDOCUMENTSCHEDULELINE TYPE STRING,
CREATIONDATE TYPE STRING,
CREATIONTIME TYPE STRING,
CREATEDBYUSER TYPE STRING,
REFERENCEDOCUMENTTYPE TYPE STRING,
REFERENCEDOCUMENTCONTEXT TYPE STRING,
GLACCOUNT TYPE STRING,
CONTROLLINGAREA TYPE STRING,
COSTCENTER TYPE STRING,
FINANCIALMANAGEMENTAREA TYPE STRING,
BUSINESSAREA TYPE STRING,
FUNDSCENTER TYPE STRING,
COMMITMENTITEM TYPE STRING,
FUNCTIONALAREA TYPE STRING,
FUNDEDPROGRAM TYPE STRING,
PREDECESSORREFERENCEDOCCNTXT TYPE STRING,
PREDECESSORREFERENCEDOCTYPE TYPE STRING,
PREDECESSORREFERENCEDOCUMENT TYPE STRING,
PREDECESSORREFERENCEDOCITEM TYPE STRING,
ORIGINALCURRENCY TYPE STRING,
AMOUNTINORIGINALCURRENCY TYPE STRING,
GRANTEEMGMTITEMISCOMPLETED TYPE STRING,
GRANTEEMGMTITEMISDELETED TYPE STRING,
REFERENCEDOCUMENTLOGICALSYSTEM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IGMIAB_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_IGMIAB_STR-MANDT sy-vline 
WA_IGMIAB_STR-GRANTEEMGMTLONGSEQUENCENUMBER sy-vline 
WA_IGMIAB_STR-LEDGER sy-vline 
WA_IGMIAB_STR-FISCALYEAR sy-vline 
WA_IGMIAB_STR-FINMGMTAREAFISCALYEARVARIANT sy-vline 
WA_IGMIAB_STR-TRANSACTIONCURRENCY sy-vline 
WA_IGMIAB_STR-FISCALYEARPERIOD sy-vline 
WA_IGMIAB_STR-COMPANYCODE sy-vline 
WA_IGMIAB_STR-GRANTID sy-vline 
WA_IGMIAB_STR-SPONSOREDPROGRAM sy-vline 
WA_IGMIAB_STR-SPONSOREDCLASS sy-vline 
WA_IGMIAB_STR-GTEEMBUDGETVALIDITYNUMBER sy-vline 
WA_IGMIAB_STR-FUND sy-vline 
WA_IGMIAB_STR-GRANTEEMGMTVALUETYPE sy-vline 
WA_IGMIAB_STR-BUSINESSTRANSACTIONTYPE sy-vline 
WA_IGMIAB_STR-ISSTATISTICALITEM sy-vline 
WA_IGMIAB_STR-GRANTEEFISCALYEAR sy-vline 
WA_IGMIAB_STR-LOGICALSYSTEM sy-vline 
WA_IGMIAB_STR-COMPANYCODECURRENCY sy-vline 
WA_IGMIAB_STR-AMOUNTINTRANSACTIONCURRENCY sy-vline 
WA_IGMIAB_STR-POSTINGDATE sy-vline 
WA_IGMIAB_STR-REFERENCEDOCUMENT sy-vline 
WA_IGMIAB_STR-REFERENCEDOCUMENTITEM sy-vline 
WA_IGMIAB_STR-REFDOCACCOUNTASSIGNMENT sy-vline 
WA_IGMIAB_STR-REFERENCEDOCUMENTSCHEDULELINE sy-vline 
WA_IGMIAB_STR-CREATIONDATE sy-vline 
WA_IGMIAB_STR-CREATIONTIME sy-vline 
WA_IGMIAB_STR-CREATEDBYUSER sy-vline 
WA_IGMIAB_STR-REFERENCEDOCUMENTTYPE sy-vline 
WA_IGMIAB_STR-REFERENCEDOCUMENTCONTEXT sy-vline 
WA_IGMIAB_STR-GLACCOUNT sy-vline 
WA_IGMIAB_STR-CONTROLLINGAREA sy-vline 
WA_IGMIAB_STR-COSTCENTER sy-vline 
WA_IGMIAB_STR-FINANCIALMANAGEMENTAREA sy-vline 
WA_IGMIAB_STR-BUSINESSAREA sy-vline 
WA_IGMIAB_STR-FUNDSCENTER sy-vline 
WA_IGMIAB_STR-COMMITMENTITEM sy-vline 
WA_IGMIAB_STR-FUNCTIONALAREA sy-vline 
WA_IGMIAB_STR-FUNDEDPROGRAM sy-vline 
WA_IGMIAB_STR-PREDECESSORREFERENCEDOCCNTXT sy-vline 
WA_IGMIAB_STR-PREDECESSORREFERENCEDOCTYPE sy-vline 
WA_IGMIAB_STR-PREDECESSORREFERENCEDOCUMENT sy-vline 
WA_IGMIAB_STR-PREDECESSORREFERENCEDOCITEM sy-vline 
WA_IGMIAB_STR-ORIGINALCURRENCY sy-vline 
WA_IGMIAB_STR-AMOUNTINORIGINALCURRENCY sy-vline 
WA_IGMIAB_STR-GRANTEEMGMTITEMISCOMPLETED sy-vline 
WA_IGMIAB_STR-GRANTEEMGMTITEMISDELETED sy-vline 
WA_IGMIAB_STR-REFERENCEDOCUMENTLOGICALSYSTEM sy-vline      INTO ld_text SEPARATED BY SPACE.

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