ABAP Select data from SAP table CRSHMNTOVWFILT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRSHMNTOVWFILT
*  INTO TABLE @DATA(IT_CRSHMNTOVWFILT2).
*--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_CRSHMNTOVWFILT INDEX 1 INTO DATA(WA_CRSHMNTOVWFILT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRSHMNTOVWFILT>-MANDT = 1.
<CRSHMNTOVWFILT>-USERID = 1.
<CRSHMNTOVWFILT>-ORDERTYPE = 1.
<CRSHMNTOVWFILT>-MAINTENANCEACTIVITYTYPE = 1.
<CRSHMNTOVWFILT>-MAINTPRIORITY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRSHMNTOVWFILT-WORKCENTER, sy-vline,
  WA_CRSHMNTOVWFILT-FUNCTIONALLOCATION, sy-vline,
  WA_CRSHMNTOVWFILT-EQUIPMENT, sy-vline,
  WA_CRSHMNTOVWFILT-MAINTENANCEREVISION, sy-vline,
  WA_CRSHMNTOVWFILT-OPERATIONCONTROLKEY, sy-vline,
  WA_CRSHMNTOVWFILT-MAINWORKCENTER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRSHMNTOVWFILT 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_CRSHMNTOVWFILT 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_CRSHMNTOVWFILT INTO WA_CRSHMNTOVWFILT.


*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 TPLNR, internal->external for field FUNCTIONALLOCATION
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_CRSHMNTOVWFILT-FUNCTIONALLOCATION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRSHMNTOVWFILT-FUNCTIONALLOCATION.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit TECHO, internal->external for field TECHNICALOBJECTLABEL
CALL FUNCTION 'CONVERSION_EXIT_TECHO_OUTPUT'
  EXPORTING
    input =                      WA_CRSHMNTOVWFILT-TECHNICALOBJECTLABEL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRSHMNTOVWFILT-TECHNICALOBJECTLABEL.
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_CRSHMNTOVWFILT_STR, 
MANDT TYPE STRING,
USERID TYPE STRING,
ORDERTYPE TYPE STRING,
MAINTENANCEACTIVITYTYPE TYPE STRING,
MAINTPRIORITY TYPE STRING,
WORKCENTER TYPE STRING,
FUNCTIONALLOCATION TYPE STRING,
EQUIPMENT TYPE STRING,
MAINTENANCEREVISION TYPE STRING,
OPERATIONCONTROLKEY TYPE STRING,
MAINWORKCENTER TYPE STRING,
MAINWORKCENTERPLANT TYPE STRING,
PLANTSECTION TYPE STRING,
ASSETLOCATION TYPE STRING,
MAINTENANCEPLANNERGROUP TYPE STRING,
MAINTENANCEPLANNINGPLANT TYPE STRING,
MAINTENANCEPLANT TYPE STRING,
TECHNICALOBJECTLABEL TYPE STRING,
TECHOBJISEQUIPORFUNCNLLOC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRSHMNTOVWFILT_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_CRSHMNTOVWFILT_STR-MANDT sy-vline 
WA_CRSHMNTOVWFILT_STR-USERID sy-vline 
WA_CRSHMNTOVWFILT_STR-ORDERTYPE sy-vline 
WA_CRSHMNTOVWFILT_STR-MAINTENANCEACTIVITYTYPE sy-vline 
WA_CRSHMNTOVWFILT_STR-MAINTPRIORITY sy-vline 
WA_CRSHMNTOVWFILT_STR-WORKCENTER sy-vline 
WA_CRSHMNTOVWFILT_STR-FUNCTIONALLOCATION sy-vline 
WA_CRSHMNTOVWFILT_STR-EQUIPMENT sy-vline 
WA_CRSHMNTOVWFILT_STR-MAINTENANCEREVISION sy-vline 
WA_CRSHMNTOVWFILT_STR-OPERATIONCONTROLKEY sy-vline 
WA_CRSHMNTOVWFILT_STR-MAINWORKCENTER sy-vline 
WA_CRSHMNTOVWFILT_STR-MAINWORKCENTERPLANT sy-vline 
WA_CRSHMNTOVWFILT_STR-PLANTSECTION sy-vline 
WA_CRSHMNTOVWFILT_STR-ASSETLOCATION sy-vline 
WA_CRSHMNTOVWFILT_STR-MAINTENANCEPLANNERGROUP sy-vline 
WA_CRSHMNTOVWFILT_STR-MAINTENANCEPLANNINGPLANT sy-vline 
WA_CRSHMNTOVWFILT_STR-MAINTENANCEPLANT sy-vline 
WA_CRSHMNTOVWFILT_STR-TECHNICALOBJECTLABEL sy-vline 
WA_CRSHMNTOVWFILT_STR-TECHOBJISEQUIPORFUNCNLLOC sy-vline      INTO ld_text SEPARATED BY SPACE.

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