ABAP Select data from SAP table ACUSTMGMTTASK into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ACUSTMGMTTASK
*  INTO TABLE @DATA(IT_ACUSTMGMTTASK2).
*--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_ACUSTMGMTTASK INDEX 1 INTO DATA(WA_ACUSTMGMTTASK2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ACUSTMGMTTASK>-MANDT = 1.
<ACUSTMGMTTASK>-CUSTMGMTTASK = 1.
<ACUSTMGMTTASK>-CUSTMGMTTASKTYPE = 1.
<ACUSTMGMTTASK>-CUSTMGMTTASKDESCRIPTION = 1.
<ACUSTMGMTTASK>-CUSTMGMTTASKUUID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ACUSTMGMTTASK-CUSTMGMTTASKPRIORITY, sy-vline,
  WA_ACUSTMGMTTASK-CUSTMGMTTASKISPRIVATE, sy-vline,
  WA_ACUSTMGMTTASK-ACCOUNT, sy-vline,
  WA_ACUSTMGMTTASK-CONTACTPERSON, sy-vline,
  WA_ACUSTMGMTTASK-CUSTMGMTTASKISCOMPLETED, sy-vline,
  WA_ACUSTMGMTTASK-CUSTMGMTTASKISREJECTED, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ACUSTMGMTTASK 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_ACUSTMGMTTASK 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_ACUSTMGMTTASK INTO WA_ACUSTMGMTTASK.


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

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

*Conversion exit ALPHA, internal->external for field CONTACTPERSON
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ACUSTMGMTTASK-CONTACTPERSON
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ACUSTMGMTTASK-CONTACTPERSON.
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_ACUSTMGMTTASK_STR, 
MANDT TYPE STRING,
CUSTMGMTTASK TYPE STRING,
CUSTMGMTTASKTYPE TYPE STRING,
CUSTMGMTTASKDESCRIPTION TYPE STRING,
CUSTMGMTTASKUUID TYPE STRING,
CUSTMGMTTASKPRIORITY TYPE STRING,
CUSTMGMTTASKISPRIVATE TYPE STRING,
ACCOUNT TYPE STRING,
CONTACTPERSON TYPE STRING,
CUSTMGMTTASKISCOMPLETED TYPE STRING,
CUSTMGMTTASKISREJECTED TYPE STRING,
CUSTMGMTTASKSTARTDATETIME TYPE STRING,
CUSTMGMTTASKENDDATETIME TYPE STRING,
RESPONSIBLESALESORGANIZATION TYPE STRING,
SERVICEORGANIZATION TYPE STRING,
RESPONSIBLESERVICEORGANIZATION TYPE STRING,
DISTRIBUTIONCHANNEL TYPE STRING,
DIVISION TYPE STRING,
SALESORGANIZATIONORGUNITID TYPE STRING,
SALESOFFICEORGUNITID TYPE STRING,
SALESGROUPORGUNITID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ACUSTMGMTTASK_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_ACUSTMGMTTASK_STR-MANDT sy-vline 
WA_ACUSTMGMTTASK_STR-CUSTMGMTTASK sy-vline 
WA_ACUSTMGMTTASK_STR-CUSTMGMTTASKTYPE sy-vline 
WA_ACUSTMGMTTASK_STR-CUSTMGMTTASKDESCRIPTION sy-vline 
WA_ACUSTMGMTTASK_STR-CUSTMGMTTASKUUID sy-vline 
WA_ACUSTMGMTTASK_STR-CUSTMGMTTASKPRIORITY sy-vline 
WA_ACUSTMGMTTASK_STR-CUSTMGMTTASKISPRIVATE sy-vline 
WA_ACUSTMGMTTASK_STR-ACCOUNT sy-vline 
WA_ACUSTMGMTTASK_STR-CONTACTPERSON sy-vline 
WA_ACUSTMGMTTASK_STR-CUSTMGMTTASKISCOMPLETED sy-vline 
WA_ACUSTMGMTTASK_STR-CUSTMGMTTASKISREJECTED sy-vline 
WA_ACUSTMGMTTASK_STR-CUSTMGMTTASKSTARTDATETIME sy-vline 
WA_ACUSTMGMTTASK_STR-CUSTMGMTTASKENDDATETIME sy-vline 
WA_ACUSTMGMTTASK_STR-RESPONSIBLESALESORGANIZATION sy-vline 
WA_ACUSTMGMTTASK_STR-SERVICEORGANIZATION sy-vline 
WA_ACUSTMGMTTASK_STR-RESPONSIBLESERVICEORGANIZATION sy-vline 
WA_ACUSTMGMTTASK_STR-DISTRIBUTIONCHANNEL sy-vline 
WA_ACUSTMGMTTASK_STR-DIVISION sy-vline 
WA_ACUSTMGMTTASK_STR-SALESORGANIZATIONORGUNITID sy-vline 
WA_ACUSTMGMTTASK_STR-SALESOFFICEORGUNITID sy-vline 
WA_ACUSTMGMTTASK_STR-SALESGROUPORGUNITID sy-vline      INTO ld_text SEPARATED BY SPACE.

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