ABAP Select data from SAP table CINVGCSMCASE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CINVGCSMCASE
*  INTO TABLE @DATA(IT_CINVGCSMCASE2).
*--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_CINVGCSMCASE INDEX 1 INTO DATA(WA_CINVGCSMCASE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CINVGCSMCASE>-MANDT = 1.
<CINVGCSMCASE>-INVGCSMCASEID = 1.
<CINVGCSMCASE>-INVGCSMCASEUUID = 1.
<CINVGCSMCASE>-INVGCSMCASETYPE = 1.
<CINVGCSMCASE>-INVGCSMCASETITLE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CINVGCSMCASE-INVGCSMCASESTATUSCODE, sy-vline,
  WA_CINVGCSMCASE-INVGCSMSTATPARA, sy-vline,
  WA_CINVGCSMCASE-INVGCSMPRIORITY, sy-vline,
  WA_CINVGCSMCASE-INVGCSMESCALATIONREASON, sy-vline,
  WA_CINVGCSMCASE-INVGCSMSECURITYLEVEL, sy-vline,
  WA_CINVGCSMCASE-INVGCSMISHIDDEN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CINVGCSMCASE 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_CINVGCSMCASE 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_CINVGCSMCASE INTO WA_CINVGCSMCASE.


*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 INVGCSMCASEID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CINVGCSMCASE-INVGCSMCASEID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CINVGCSMCASE-INVGCSMCASEID.
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_CINVGCSMCASE_STR, 
MANDT TYPE STRING,
INVGCSMCASEID TYPE STRING,
INVGCSMCASEUUID TYPE STRING,
INVGCSMCASETYPE TYPE STRING,
INVGCSMCASETITLE TYPE STRING,
INVGCSMCASESTATUSCODE TYPE STRING,
INVGCSMSTATPARA TYPE STRING,
INVGCSMPRIORITY TYPE STRING,
INVGCSMESCALATIONREASON TYPE STRING,
INVGCSMSECURITYLEVEL TYPE STRING,
INVGCSMISHIDDEN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CINVGCSMCASE_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_CINVGCSMCASE_STR-MANDT sy-vline 
WA_CINVGCSMCASE_STR-INVGCSMCASEID sy-vline 
WA_CINVGCSMCASE_STR-INVGCSMCASEUUID sy-vline 
WA_CINVGCSMCASE_STR-INVGCSMCASETYPE sy-vline 
WA_CINVGCSMCASE_STR-INVGCSMCASETITLE sy-vline 
WA_CINVGCSMCASE_STR-INVGCSMCASESTATUSCODE sy-vline 
WA_CINVGCSMCASE_STR-INVGCSMSTATPARA sy-vline 
WA_CINVGCSMCASE_STR-INVGCSMPRIORITY sy-vline 
WA_CINVGCSMCASE_STR-INVGCSMESCALATIONREASON sy-vline 
WA_CINVGCSMCASE_STR-INVGCSMSECURITYLEVEL sy-vline 
WA_CINVGCSMCASE_STR-INVGCSMISHIDDEN sy-vline      INTO ld_text SEPARATED BY SPACE.

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