ABAP Select data from SAP table APURGQTAITM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM APURGQTAITM
*  INTO TABLE @DATA(IT_APURGQTAITM2).
*--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_APURGQTAITM INDEX 1 INTO DATA(WA_APURGQTAITM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<APURGQTAITM>-MANDT = 1.
<APURGQTAITM>-QUOTAARRANGEMENT = 1.
<APURGQTAITM>-QUOTAARRANGEMENTITEM = 1.
<APURGQTAITM>-MATERIALPROCUREMENTCATEGORY = 1.
<APURGQTAITM>-MATERIALPROCUREMENTTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_APURGQTAITM-SUPPLIER, sy-vline,
  WA_APURGQTAITM-SUPPLYINGPLANT, sy-vline,
  WA_APURGQTAITM-PURCHASINGSOURCEQUOTA, sy-vline,
  WA_APURGQTAITM-QUOTABASEQUANTITY, sy-vline,
  WA_APURGQTAITM-QUOTAALLOCATEDQUANTITY, sy-vline,
  WA_APURGQTAITM-QUOTAMAXIMUMQUANTITY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_APURGQTAITM 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_APURGQTAITM 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_APURGQTAITM INTO WA_APURGQTAITM.


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

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

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

*Conversion exit CUNIT, internal->external for field MATERIALBASEUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_APURGQTAITM-MATERIALBASEUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_APURGQTAITM-MATERIALBASEUNIT.
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_APURGQTAITM_STR, 
MANDT TYPE STRING,
QUOTAARRANGEMENT TYPE STRING,
QUOTAARRANGEMENTITEM TYPE STRING,
MATERIALPROCUREMENTCATEGORY TYPE STRING,
MATERIALPROCUREMENTTYPE TYPE STRING,
SUPPLIER TYPE STRING,
SUPPLYINGPLANT TYPE STRING,
PURCHASINGSOURCEQUOTA TYPE STRING,
QUOTABASEQUANTITY TYPE STRING,
QUOTAALLOCATEDQUANTITY TYPE STRING,
QUOTAMAXIMUMQUANTITY TYPE STRING,
PRODUCTIONVERSION TYPE STRING,
MATERIALMAXLOTSIZEQUANTITY TYPE STRING,
MATERIALMINLOTSIZEQUANTITY TYPE STRING,
MATERIALROUNDINGPROFILE TYPE STRING,
SOURCEOFSUPPLYISASSIGNEDONCE TYPE STRING,
MAXIMUMRELEASEQUANTITY TYPE STRING,
QUOTARELEASEPERIODTYPE TYPE STRING,
NUMBEROFPERIODSPERRELQUANTITY TYPE STRING,
QUOTADETERMINATIONPRIORITY TYPE STRING,
MANUFACTURERMATERIAL TYPE STRING,
PLANNEDDELIVERYDURATIONINDAYS TYPE STRING,
MATERIALBASEUNIT TYPE STRING,
PLANT TYPE STRING,
AUTHORIZATIONGROUP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_APURGQTAITM_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_APURGQTAITM_STR-MANDT sy-vline 
WA_APURGQTAITM_STR-QUOTAARRANGEMENT sy-vline 
WA_APURGQTAITM_STR-QUOTAARRANGEMENTITEM sy-vline 
WA_APURGQTAITM_STR-MATERIALPROCUREMENTCATEGORY sy-vline 
WA_APURGQTAITM_STR-MATERIALPROCUREMENTTYPE sy-vline 
WA_APURGQTAITM_STR-SUPPLIER sy-vline 
WA_APURGQTAITM_STR-SUPPLYINGPLANT sy-vline 
WA_APURGQTAITM_STR-PURCHASINGSOURCEQUOTA sy-vline 
WA_APURGQTAITM_STR-QUOTABASEQUANTITY sy-vline 
WA_APURGQTAITM_STR-QUOTAALLOCATEDQUANTITY sy-vline 
WA_APURGQTAITM_STR-QUOTAMAXIMUMQUANTITY sy-vline 
WA_APURGQTAITM_STR-PRODUCTIONVERSION sy-vline 
WA_APURGQTAITM_STR-MATERIALMAXLOTSIZEQUANTITY sy-vline 
WA_APURGQTAITM_STR-MATERIALMINLOTSIZEQUANTITY sy-vline 
WA_APURGQTAITM_STR-MATERIALROUNDINGPROFILE sy-vline 
WA_APURGQTAITM_STR-SOURCEOFSUPPLYISASSIGNEDONCE sy-vline 
WA_APURGQTAITM_STR-MAXIMUMRELEASEQUANTITY sy-vline 
WA_APURGQTAITM_STR-QUOTARELEASEPERIODTYPE sy-vline 
WA_APURGQTAITM_STR-NUMBEROFPERIODSPERRELQUANTITY sy-vline 
WA_APURGQTAITM_STR-QUOTADETERMINATIONPRIORITY sy-vline 
WA_APURGQTAITM_STR-MANUFACTURERMATERIAL sy-vline 
WA_APURGQTAITM_STR-PLANNEDDELIVERYDURATIONINDAYS sy-vline 
WA_APURGQTAITM_STR-MATERIALBASEUNIT sy-vline 
WA_APURGQTAITM_STR-PLANT sy-vline 
WA_APURGQTAITM_STR-AUTHORIZATIONGROUP sy-vline      INTO ld_text SEPARATED BY SPACE.

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