ABAP Select data from SAP table IACMQTYELMNTS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IACMQTYELMNTS
*  INTO TABLE @DATA(IT_IACMQTYELMNTS2).
*--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_IACMQTYELMNTS INDEX 1 INTO DATA(WA_IACMQTYELMNTS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IACMQTYELMNTS>-MANDT = 1.
<IACMQTYELMNTS>-CONTRACTNUM = 1.
<IACMQTYELMNTS>-CONTRACTITEM = 1.
<IACMQTYELMNTS>-CONTRACTSUBITEM = 1.
<IACMQTYELMNTS>-DOCUMENTDATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IACMQTYELMNTS-TRADINGCONTRACTCREATEDBY, sy-vline,
  WA_IACMQTYELMNTS-SALESORGANIZATION, sy-vline,
  WA_IACMQTYELMNTS-DISTRIBUTIONCHANNEL, sy-vline,
  WA_IACMQTYELMNTS-DIVISION, sy-vline,
  WA_IACMQTYELMNTS-PURCHASINGORGANIZATION, sy-vline,
  WA_IACMQTYELMNTS-PURCHASINGGROUP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IACMQTYELMNTS 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_IACMQTYELMNTS 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_IACMQTYELMNTS INTO WA_IACMQTYELMNTS.


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

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

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

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

*Conversion exit CUNIT, internal->external for field TRDGCONTRACTITEMUNITOFMEASURE
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_IACMQTYELMNTS-TRDGCONTRACTITEMUNITOFMEASURE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IACMQTYELMNTS-TRDGCONTRACTITEMUNITOFMEASURE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field CONTRITEMCONSUMEDQUANTITYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_IACMQTYELMNTS-CONTRITEMCONSUMEDQUANTITYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IACMQTYELMNTS-CONTRITEMCONSUMEDQUANTITYUNIT.
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_IACMQTYELMNTS_STR, 
MANDT TYPE STRING,
CONTRACTNUM TYPE STRING,
CONTRACTITEM TYPE STRING,
CONTRACTSUBITEM TYPE STRING,
DOCUMENTDATE TYPE STRING,
TRADINGCONTRACTCREATEDBY TYPE STRING,
SALESORGANIZATION TYPE STRING,
DISTRIBUTIONCHANNEL TYPE STRING,
DIVISION TYPE STRING,
PURCHASINGORGANIZATION TYPE STRING,
PURCHASINGGROUP TYPE STRING,
CONTRACTMATERIAL TYPE STRING,
CONTRACTPLANT TYPE STRING,
TRADINGCONTRACTTYPE TYPE STRING,
COMPANYCODE TYPE STRING,
CUSTOMERNAME TYPE STRING,
SUPPLIERNAME TYPE STRING,
COMMODITY TYPE STRING,
TRADINGCONTRACTITEMQUANTITY TYPE STRING,
TRDGCONTRACTITEMUNITOFMEASURE TYPE STRING,
CONTRACTITEMCONSUMEDQUANTITY TYPE STRING,
CONTRITEMCONSUMEDQUANTITYUNIT TYPE STRING,
LOGISTICALLYADJUSTEDQUANTITY TYPE STRING,
TRDGCONTRITEMCANCELLEDQUANTITY TYPE STRING,
TRDGCONTRITEMWASHOUTQUANTITY TYPE STRING,
TRDGCONTRITEMRETURNQUANTITY TYPE STRING,
PROVISIONALAPPLICATIONQUANTITY TYPE STRING,
FINALAPPLICATIONQUANTITY TYPE STRING,
CONTRITMPRVSNLUNDERFILLQTY TYPE STRING,
CONTRITMPROVISIONALOVERFILLQTY TYPE STRING,
TRDGCONTRITEMUNDERFILLQUANTITY TYPE STRING,
PROVISIONALSETTLEDQUANTITY TYPE STRING,
FINALSETTLEDQUANTITY TYPE STRING,
TOTALFINALSETTLEDQUANTITY TYPE STRING,
NONAPPLIEDPRVSNLSETTLEDQTY TYPE STRING,
REVENUERECOGNIZEDQUANTITY TYPE STRING,
CONTROVERFILLSETTLEDQUANTITY TYPE STRING,
CONTRITEMSOFTASSIGNEDQUANTITY TYPE STRING,
CONTROVERFILLFIXATIONQUANTITY TYPE STRING,
ACMOVERFILLDIFFERENCEQUANTITY TYPE STRING,
CONTRITMPERDELIVERYOVERFILLQTY TYPE STRING,
TRDGCONTRITEMOVERFILLRETQTY TYPE STRING,
TRDGCONTRITEMOVERFILLQUANTITY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IACMQTYELMNTS_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_IACMQTYELMNTS_STR-MANDT sy-vline 
WA_IACMQTYELMNTS_STR-CONTRACTNUM sy-vline 
WA_IACMQTYELMNTS_STR-CONTRACTITEM sy-vline 
WA_IACMQTYELMNTS_STR-CONTRACTSUBITEM sy-vline 
WA_IACMQTYELMNTS_STR-DOCUMENTDATE sy-vline 
WA_IACMQTYELMNTS_STR-TRADINGCONTRACTCREATEDBY sy-vline 
WA_IACMQTYELMNTS_STR-SALESORGANIZATION sy-vline 
WA_IACMQTYELMNTS_STR-DISTRIBUTIONCHANNEL sy-vline 
WA_IACMQTYELMNTS_STR-DIVISION sy-vline 
WA_IACMQTYELMNTS_STR-PURCHASINGORGANIZATION sy-vline 
WA_IACMQTYELMNTS_STR-PURCHASINGGROUP sy-vline 
WA_IACMQTYELMNTS_STR-CONTRACTMATERIAL sy-vline 
WA_IACMQTYELMNTS_STR-CONTRACTPLANT sy-vline 
WA_IACMQTYELMNTS_STR-TRADINGCONTRACTTYPE sy-vline 
WA_IACMQTYELMNTS_STR-COMPANYCODE sy-vline 
WA_IACMQTYELMNTS_STR-CUSTOMERNAME sy-vline 
WA_IACMQTYELMNTS_STR-SUPPLIERNAME sy-vline 
WA_IACMQTYELMNTS_STR-COMMODITY sy-vline 
WA_IACMQTYELMNTS_STR-TRADINGCONTRACTITEMQUANTITY sy-vline 
WA_IACMQTYELMNTS_STR-TRDGCONTRACTITEMUNITOFMEASURE sy-vline 
WA_IACMQTYELMNTS_STR-CONTRACTITEMCONSUMEDQUANTITY sy-vline 
WA_IACMQTYELMNTS_STR-CONTRITEMCONSUMEDQUANTITYUNIT sy-vline 
WA_IACMQTYELMNTS_STR-LOGISTICALLYADJUSTEDQUANTITY sy-vline 
WA_IACMQTYELMNTS_STR-TRDGCONTRITEMCANCELLEDQUANTITY sy-vline 
WA_IACMQTYELMNTS_STR-TRDGCONTRITEMWASHOUTQUANTITY sy-vline 
WA_IACMQTYELMNTS_STR-TRDGCONTRITEMRETURNQUANTITY sy-vline 
WA_IACMQTYELMNTS_STR-PROVISIONALAPPLICATIONQUANTITY sy-vline 
WA_IACMQTYELMNTS_STR-FINALAPPLICATIONQUANTITY sy-vline 
WA_IACMQTYELMNTS_STR-CONTRITMPRVSNLUNDERFILLQTY sy-vline 
WA_IACMQTYELMNTS_STR-CONTRITMPROVISIONALOVERFILLQTY sy-vline 
WA_IACMQTYELMNTS_STR-TRDGCONTRITEMUNDERFILLQUANTITY sy-vline 
WA_IACMQTYELMNTS_STR-PROVISIONALSETTLEDQUANTITY sy-vline 
WA_IACMQTYELMNTS_STR-FINALSETTLEDQUANTITY sy-vline 
WA_IACMQTYELMNTS_STR-TOTALFINALSETTLEDQUANTITY sy-vline 
WA_IACMQTYELMNTS_STR-NONAPPLIEDPRVSNLSETTLEDQTY sy-vline 
WA_IACMQTYELMNTS_STR-REVENUERECOGNIZEDQUANTITY sy-vline 
WA_IACMQTYELMNTS_STR-CONTROVERFILLSETTLEDQUANTITY sy-vline 
WA_IACMQTYELMNTS_STR-CONTRITEMSOFTASSIGNEDQUANTITY sy-vline 
WA_IACMQTYELMNTS_STR-CONTROVERFILLFIXATIONQUANTITY sy-vline 
WA_IACMQTYELMNTS_STR-ACMOVERFILLDIFFERENCEQUANTITY sy-vline 
WA_IACMQTYELMNTS_STR-CONTRITMPERDELIVERYOVERFILLQTY sy-vline 
WA_IACMQTYELMNTS_STR-TRDGCONTRITEMOVERFILLRETQTY sy-vline 
WA_IACMQTYELMNTS_STR-TRDGCONTRITEMOVERFILLQUANTITY sy-vline      INTO ld_text SEPARATED BY SPACE.

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