ABAP Select data from SAP table CMMT_HS_QUOTA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CMMT_HS_QUOTA
*  INTO TABLE @DATA(IT_CMMT_HS_QUOTA2).
*--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_CMMT_HS_QUOTA INDEX 1 INTO DATA(WA_CMMT_HS_QUOTA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CMMT_HS_QUOTA>-CLIENT = 1.
<CMMT_HS_QUOTA>-ORDER_UUID = 1.
<CMMT_HS_QUOTA>-HS_ID = 1.
<CMMT_HS_QUOTA>-ORDER_ID = 1.
<CMMT_HS_QUOTA>-ORDER_YEAR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CMMT_HS_QUOTA-ORDER_VALID_FROM, sy-vline,
  WA_CMMT_HS_QUOTA-QUOTA, sy-vline,
  WA_CMMT_HS_QUOTA-ACCEPT_MARKET_PRICE_IND, sy-vline,
  WA_CMMT_HS_QUOTA-LIMIT_AMOUNT, sy-vline,
  WA_CMMT_HS_QUOTA-CURRENCY, sy-vline,
  WA_CMMT_HS_QUOTA-DIRECTIVE_TEXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CMMT_HS_QUOTA 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_CMMT_HS_QUOTA 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_CMMT_HS_QUOTA INTO WA_CMMT_HS_QUOTA.


*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 HS_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CMMT_HS_QUOTA-HS_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMMT_HS_QUOTA-HS_ID.
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_CMMT_HS_QUOTA_STR, 
CLIENT TYPE STRING,
ORDER_UUID TYPE STRING,
HS_ID TYPE STRING,
ORDER_ID TYPE STRING,
ORDER_YEAR TYPE STRING,
ORDER_VALID_FROM TYPE STRING,
QUOTA TYPE STRING,
ACCEPT_MARKET_PRICE_IND TYPE STRING,
LIMIT_AMOUNT TYPE STRING,
CURRENCY TYPE STRING,
DIRECTIVE_TEXT TYPE STRING,
DIRECTION TYPE STRING,
PERIOD_CATEGORY TYPE STRING,
PERIOD_NUMBER TYPE STRING,
IS_ACTIVE TYPE STRING,
DELETION_IND TYPE STRING,
CREATED_BY TYPE STRING,
CREATED_AT TYPE STRING,
CHANGED_BY TYPE STRING,
CHANGED_AT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CMMT_HS_QUOTA_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_CMMT_HS_QUOTA_STR-CLIENT sy-vline 
WA_CMMT_HS_QUOTA_STR-ORDER_UUID sy-vline 
WA_CMMT_HS_QUOTA_STR-HS_ID sy-vline 
WA_CMMT_HS_QUOTA_STR-ORDER_ID sy-vline 
WA_CMMT_HS_QUOTA_STR-ORDER_YEAR sy-vline 
WA_CMMT_HS_QUOTA_STR-ORDER_VALID_FROM sy-vline 
WA_CMMT_HS_QUOTA_STR-QUOTA sy-vline 
WA_CMMT_HS_QUOTA_STR-ACCEPT_MARKET_PRICE_IND sy-vline 
WA_CMMT_HS_QUOTA_STR-LIMIT_AMOUNT sy-vline 
WA_CMMT_HS_QUOTA_STR-CURRENCY sy-vline 
WA_CMMT_HS_QUOTA_STR-DIRECTIVE_TEXT sy-vline 
WA_CMMT_HS_QUOTA_STR-DIRECTION sy-vline 
WA_CMMT_HS_QUOTA_STR-PERIOD_CATEGORY sy-vline 
WA_CMMT_HS_QUOTA_STR-PERIOD_NUMBER sy-vline 
WA_CMMT_HS_QUOTA_STR-IS_ACTIVE sy-vline 
WA_CMMT_HS_QUOTA_STR-DELETION_IND sy-vline 
WA_CMMT_HS_QUOTA_STR-CREATED_BY sy-vline 
WA_CMMT_HS_QUOTA_STR-CREATED_AT sy-vline 
WA_CMMT_HS_QUOTA_STR-CHANGED_BY sy-vline 
WA_CMMT_HS_QUOTA_STR-CHANGED_AT sy-vline      INTO ld_text SEPARATED BY SPACE.

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