ABAP Select data from SAP table CRMT_ACTIVITY_H_BWP_ALV into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRMT_ACTIVITY_H_BWP_ALV
*  INTO TABLE @DATA(IT_CRMT_ACTIVITY_H_BWP_ALV2).
*--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_CRMT_ACTIVITY_H_BWP_ALV INDEX 1 INTO DATA(WA_CRMT_ACTIVITY_H_BWP_ALV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRMT_ACTIVITY_H_BWP_ALV>-OWNER = 1.
<CRMT_ACTIVITY_H_BWP_ALV>-FOLRG = 1.
<CRMT_ACTIVITY_H_BWP_ALV>-CLIENT = 1.
<CRMT_ACTIVITY_H_BWP_ALV>-GUID = 1.
<CRMT_ACTIVITY_H_BWP_ALV>-SUBCLASS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRMT_ACTIVITY_H_BWP_ALV-OBJECT_TYPE, sy-vline,
  WA_CRMT_ACTIVITY_H_BWP_ALV-OBJECT_ID, sy-vline,
  WA_CRMT_ACTIVITY_H_BWP_ALV-DESCRIPTION, sy-vline,
  WA_CRMT_ACTIVITY_H_BWP_ALV-PROCESS_TYPE, sy-vline,
  WA_CRMT_ACTIVITY_H_BWP_ALV-PROCESS_TYPE_TXT, sy-vline,
  WA_CRMT_ACTIVITY_H_BWP_ALV-CONCATSTATUSER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRMT_ACTIVITY_H_BWP_ALV 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_CRMT_ACTIVITY_H_BWP_ALV 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_CRMT_ACTIVITY_H_BWP_ALV INTO WA_CRMT_ACTIVITY_H_BWP_ALV.


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

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

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

*Conversion exit TSTPS, internal->external for field CREATED_AT
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_CRMT_ACTIVITY_H_BWP_ALV-CREATED_AT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMT_ACTIVITY_H_BWP_ALV-CREATED_AT.
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_CRMT_ACTIVITY_H_BWP_ALV_STR, 
OWNER TYPE STRING,
FOLRG TYPE STRING,
CLIENT TYPE STRING,
GUID TYPE STRING,
SUBCLASS TYPE STRING,
OBJECT_TYPE TYPE STRING,
OBJECT_ID TYPE STRING,
DESCRIPTION TYPE STRING,
PROCESS_TYPE TYPE STRING,
PROCESS_TYPE_TXT TYPE STRING,
CONCATSTATUSER TYPE STRING,
CATEGORY TYPE STRING,
CATEGORY_TXT TYPE STRING,
PRIORITY TYPE STRING,
PRIORITY_TXT TYPE STRING,
OBJECTIVE TYPE STRING,
OBJECTIVE_TXT TYPE STRING,
TASK TYPE STRING,
FROM TYPE STRING,
TO TYPE STRING,
FROM_TIME TYPE STRING,
TO_TIME TYPE STRING,
PARTNER_FCT TYPE STRING,
FCT_DESCRIPTION TYPE STRING,
ACTIVITY_PARTNER TYPE STRING,
ACTIVITY_PARTNER_LIST TYPE STRING,
CONTACT_PERSON TYPE STRING,
CONTACT_PERSON_LIST TYPE STRING,
RESUBMISSON_DATE TYPE STRING,
DIRECTION TYPE STRING,
ICON_OVERDUE TYPE STRING,
CREATED_AT TYPE STRING,
CREATED_BY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRMT_ACTIVITY_H_BWP_ALV_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_CRMT_ACTIVITY_H_BWP_ALV_STR-OWNER sy-vline 
WA_CRMT_ACTIVITY_H_BWP_ALV_STR-FOLRG sy-vline 
WA_CRMT_ACTIVITY_H_BWP_ALV_STR-CLIENT sy-vline 
WA_CRMT_ACTIVITY_H_BWP_ALV_STR-GUID sy-vline 
WA_CRMT_ACTIVITY_H_BWP_ALV_STR-SUBCLASS sy-vline 
WA_CRMT_ACTIVITY_H_BWP_ALV_STR-OBJECT_TYPE sy-vline 
WA_CRMT_ACTIVITY_H_BWP_ALV_STR-OBJECT_ID sy-vline 
WA_CRMT_ACTIVITY_H_BWP_ALV_STR-DESCRIPTION sy-vline 
WA_CRMT_ACTIVITY_H_BWP_ALV_STR-PROCESS_TYPE sy-vline 
WA_CRMT_ACTIVITY_H_BWP_ALV_STR-PROCESS_TYPE_TXT sy-vline 
WA_CRMT_ACTIVITY_H_BWP_ALV_STR-CONCATSTATUSER sy-vline 
WA_CRMT_ACTIVITY_H_BWP_ALV_STR-CATEGORY sy-vline 
WA_CRMT_ACTIVITY_H_BWP_ALV_STR-CATEGORY_TXT sy-vline 
WA_CRMT_ACTIVITY_H_BWP_ALV_STR-PRIORITY sy-vline 
WA_CRMT_ACTIVITY_H_BWP_ALV_STR-PRIORITY_TXT sy-vline 
WA_CRMT_ACTIVITY_H_BWP_ALV_STR-OBJECTIVE sy-vline 
WA_CRMT_ACTIVITY_H_BWP_ALV_STR-OBJECTIVE_TXT sy-vline 
WA_CRMT_ACTIVITY_H_BWP_ALV_STR-TASK sy-vline 
WA_CRMT_ACTIVITY_H_BWP_ALV_STR-FROM sy-vline 
WA_CRMT_ACTIVITY_H_BWP_ALV_STR-TO sy-vline 
WA_CRMT_ACTIVITY_H_BWP_ALV_STR-FROM_TIME sy-vline 
WA_CRMT_ACTIVITY_H_BWP_ALV_STR-TO_TIME sy-vline 
WA_CRMT_ACTIVITY_H_BWP_ALV_STR-PARTNER_FCT sy-vline 
WA_CRMT_ACTIVITY_H_BWP_ALV_STR-FCT_DESCRIPTION sy-vline 
WA_CRMT_ACTIVITY_H_BWP_ALV_STR-ACTIVITY_PARTNER sy-vline 
WA_CRMT_ACTIVITY_H_BWP_ALV_STR-ACTIVITY_PARTNER_LIST sy-vline 
WA_CRMT_ACTIVITY_H_BWP_ALV_STR-CONTACT_PERSON sy-vline 
WA_CRMT_ACTIVITY_H_BWP_ALV_STR-CONTACT_PERSON_LIST sy-vline 
WA_CRMT_ACTIVITY_H_BWP_ALV_STR-RESUBMISSON_DATE sy-vline 
WA_CRMT_ACTIVITY_H_BWP_ALV_STR-DIRECTION sy-vline 
WA_CRMT_ACTIVITY_H_BWP_ALV_STR-ICON_OVERDUE sy-vline 
WA_CRMT_ACTIVITY_H_BWP_ALV_STR-CREATED_AT sy-vline 
WA_CRMT_ACTIVITY_H_BWP_ALV_STR-CREATED_BY sy-vline      INTO ld_text SEPARATED BY SPACE.

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