ABAP Select data from SAP table CRSHOPRVAL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRSHOPRVAL
*  INTO TABLE @DATA(IT_CRSHOPRVAL2).
*--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_CRSHOPRVAL INDEX 1 INTO DATA(WA_CRSHOPRVAL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRSHOPRVAL>-MANDT = 1.
<CRSHOPRVAL>-MAINTENANCEORDER = 1.
<CRSHOPRVAL>-MAINTENANCEORDEROPERATION = 1.
<CRSHOPRVAL>-MAINTENANCEORDERSUBOPERATION = 1.
<CRSHOPRVAL>-SYSTEMMESSAGENUMBER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRSHOPRVAL-SYSTEMMESSAGETYPE, sy-vline,
  WA_CRSHOPRVAL-SYSTEMMESSAGETYPECRITICALITY, sy-vline,
  WA_CRSHOPRVAL-SYSTEMMESSAGETYPENAME, sy-vline,
  WA_CRSHOPRVAL-SYSTEMMESSAGETEXT, sy-vline,
  WA_CRSHOPRVAL-PLANT, sy-vline,
  WA_CRSHOPRVAL-ORDERTYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRSHOPRVAL 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_CRSHOPRVAL 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_CRSHOPRVAL INTO WA_CRSHOPRVAL.


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

*Conversion exit NUMCV, internal->external for field MAINTENANCEORDERSUBOPERATION
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_CRSHOPRVAL-MAINTENANCEORDERSUBOPERATION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRSHOPRVAL-MAINTENANCEORDERSUBOPERATION.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EQUIPMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CRSHOPRVAL-EQUIPMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRSHOPRVAL-EQUIPMENT.
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_CRSHOPRVAL_STR, 
MANDT TYPE STRING,
MAINTENANCEORDER TYPE STRING,
MAINTENANCEORDEROPERATION TYPE STRING,
MAINTENANCEORDERSUBOPERATION TYPE STRING,
SYSTEMMESSAGENUMBER TYPE STRING,
SYSTEMMESSAGETYPE TYPE STRING,
SYSTEMMESSAGETYPECRITICALITY TYPE STRING,
SYSTEMMESSAGETYPENAME TYPE STRING,
SYSTEMMESSAGETEXT TYPE STRING,
PLANT TYPE STRING,
ORDERTYPE TYPE STRING,
MAINTENANCEPLANNERGROUP TYPE STRING,
EQUIPMENT TYPE STRING,
MAINTOBJECTLOCACCTASSGMTNMBR TYPE STRING,
MAINTENANCEORDERTYPE TYPE STRING,
MAINTENANCEPLANNINGPLANT TYPE STRING,
OPERATIONPERSONRESPONSIBLE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRSHOPRVAL_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_CRSHOPRVAL_STR-MANDT sy-vline 
WA_CRSHOPRVAL_STR-MAINTENANCEORDER sy-vline 
WA_CRSHOPRVAL_STR-MAINTENANCEORDEROPERATION sy-vline 
WA_CRSHOPRVAL_STR-MAINTENANCEORDERSUBOPERATION sy-vline 
WA_CRSHOPRVAL_STR-SYSTEMMESSAGENUMBER sy-vline 
WA_CRSHOPRVAL_STR-SYSTEMMESSAGETYPE sy-vline 
WA_CRSHOPRVAL_STR-SYSTEMMESSAGETYPECRITICALITY sy-vline 
WA_CRSHOPRVAL_STR-SYSTEMMESSAGETYPENAME sy-vline 
WA_CRSHOPRVAL_STR-SYSTEMMESSAGETEXT sy-vline 
WA_CRSHOPRVAL_STR-PLANT sy-vline 
WA_CRSHOPRVAL_STR-ORDERTYPE sy-vline 
WA_CRSHOPRVAL_STR-MAINTENANCEPLANNERGROUP sy-vline 
WA_CRSHOPRVAL_STR-EQUIPMENT sy-vline 
WA_CRSHOPRVAL_STR-MAINTOBJECTLOCACCTASSGMTNMBR sy-vline 
WA_CRSHOPRVAL_STR-MAINTENANCEORDERTYPE sy-vline 
WA_CRSHOPRVAL_STR-MAINTENANCEPLANNINGPLANT sy-vline 
WA_CRSHOPRVAL_STR-OPERATIONPERSONRESPONSIBLE sy-vline      INTO ld_text SEPARATED BY SPACE.

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