ABAP Select data from SAP table CDISCASSITTMPL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CDISCASSITTMPL
*  INTO TABLE @DATA(IT_CDISCASSITTMPL2).
*--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_CDISCASSITTMPL INDEX 1 INTO DATA(WA_CDISCASSITTMPL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CDISCASSITTMPL>-MANDT = 1.
<CDISCASSITTMPL>-DISPUTECASEUUID = 1.
<CDISCASSITTMPL>-DISPUTECASECOORDINATOR = 1.
<CDISCASSITTMPL>-DISPUTECASEROOTCAUSE = 1.
<CDISCASSITTMPL>-CASEPROCESSINGDEADLINEDATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CDISCASSITTMPL-ORIGINALAMOUNT, sy-vline,
  WA_CDISCASSITTMPL-DISPUTEDAMOUNT, sy-vline,
  WA_CDISCASSITTMPL-PAIDAMOUNT, sy-vline,
  WA_CDISCASSITTMPL-CREDITEDAMOUNT, sy-vline,
  WA_CDISCASSITTMPL-WRITEOFFAMOUNT, sy-vline,
  WA_CDISCASSITTMPL-MANUALLYCLEAREDAMOUNT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CDISCASSITTMPL 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_CDISCASSITTMPL 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_CDISCASSITTMPL INTO WA_CDISCASSITTMPL.


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

*Conversion exit ALPHA, internal->external for field CUSTOMER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CDISCASSITTMPL-CUSTOMER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CDISCASSITTMPL-CUSTOMER.
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_CDISCASSITTMPL_STR, 
MANDT TYPE STRING,
DISPUTECASEUUID TYPE STRING,
DISPUTECASECOORDINATOR TYPE STRING,
DISPUTECASEROOTCAUSE TYPE STRING,
CASEPROCESSINGDEADLINEDATE TYPE STRING,
ORIGINALAMOUNT TYPE STRING,
DISPUTEDAMOUNT TYPE STRING,
PAIDAMOUNT TYPE STRING,
CREDITEDAMOUNT TYPE STRING,
WRITEOFFAMOUNT TYPE STRING,
MANUALLYCLEAREDAMOUNT TYPE STRING,
CASEID TYPE STRING,
DISPUTECASECURRENCY TYPE STRING,
CUSTOMERDISPUTEDAMOUNT TYPE STRING,
CUSTOMERDISPUTEDCURRENCY TYPE STRING,
CUSTOMER TYPE STRING,
COMPANYCODE TYPE STRING,
DISPUTECASEEXTERNALAPPLICATION TYPE STRING,
CASETYPE TYPE STRING,
CASEEXTERNALREFERENCE TYPE STRING,
CASECREATEDBY TYPE STRING,
CASECREATEDON TYPE STRING,
CASELASTCHANGEDBY TYPE STRING,
CASELASTCHANGEDON TYPE STRING,
CASECLOSEDBY TYPE STRING,
CASECLOSEDTIME TYPE STRING,
CASEPLANNEDCLOSEDATE TYPE STRING,
CASEPROCESSOR TYPE STRING,
CASERESPONSIBLE TYPE STRING,
CASEESCALATIONREASON TYPE STRING,
CASECATEGORY TYPE STRING,
CASEPRIORITY TYPE STRING,
CASESTATUS TYPE STRING,
CASESYSTEMSTATUS TYPE STRING,
CASEREASON TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CDISCASSITTMPL_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_CDISCASSITTMPL_STR-MANDT sy-vline 
WA_CDISCASSITTMPL_STR-DISPUTECASEUUID sy-vline 
WA_CDISCASSITTMPL_STR-DISPUTECASECOORDINATOR sy-vline 
WA_CDISCASSITTMPL_STR-DISPUTECASEROOTCAUSE sy-vline 
WA_CDISCASSITTMPL_STR-CASEPROCESSINGDEADLINEDATE sy-vline 
WA_CDISCASSITTMPL_STR-ORIGINALAMOUNT sy-vline 
WA_CDISCASSITTMPL_STR-DISPUTEDAMOUNT sy-vline 
WA_CDISCASSITTMPL_STR-PAIDAMOUNT sy-vline 
WA_CDISCASSITTMPL_STR-CREDITEDAMOUNT sy-vline 
WA_CDISCASSITTMPL_STR-WRITEOFFAMOUNT sy-vline 
WA_CDISCASSITTMPL_STR-MANUALLYCLEAREDAMOUNT sy-vline 
WA_CDISCASSITTMPL_STR-CASEID sy-vline 
WA_CDISCASSITTMPL_STR-DISPUTECASECURRENCY sy-vline 
WA_CDISCASSITTMPL_STR-CUSTOMERDISPUTEDAMOUNT sy-vline 
WA_CDISCASSITTMPL_STR-CUSTOMERDISPUTEDCURRENCY sy-vline 
WA_CDISCASSITTMPL_STR-CUSTOMER sy-vline 
WA_CDISCASSITTMPL_STR-COMPANYCODE sy-vline 
WA_CDISCASSITTMPL_STR-DISPUTECASEEXTERNALAPPLICATION sy-vline 
WA_CDISCASSITTMPL_STR-CASETYPE sy-vline 
WA_CDISCASSITTMPL_STR-CASEEXTERNALREFERENCE sy-vline 
WA_CDISCASSITTMPL_STR-CASECREATEDBY sy-vline 
WA_CDISCASSITTMPL_STR-CASECREATEDON sy-vline 
WA_CDISCASSITTMPL_STR-CASELASTCHANGEDBY sy-vline 
WA_CDISCASSITTMPL_STR-CASELASTCHANGEDON sy-vline 
WA_CDISCASSITTMPL_STR-CASECLOSEDBY sy-vline 
WA_CDISCASSITTMPL_STR-CASECLOSEDTIME sy-vline 
WA_CDISCASSITTMPL_STR-CASEPLANNEDCLOSEDATE sy-vline 
WA_CDISCASSITTMPL_STR-CASEPROCESSOR sy-vline 
WA_CDISCASSITTMPL_STR-CASERESPONSIBLE sy-vline 
WA_CDISCASSITTMPL_STR-CASEESCALATIONREASON sy-vline 
WA_CDISCASSITTMPL_STR-CASECATEGORY sy-vline 
WA_CDISCASSITTMPL_STR-CASEPRIORITY sy-vline 
WA_CDISCASSITTMPL_STR-CASESTATUS sy-vline 
WA_CDISCASSITTMPL_STR-CASESYSTEMSTATUS sy-vline 
WA_CDISCASSITTMPL_STR-CASEREASON sy-vline      INTO ld_text SEPARATED BY SPACE.

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