ABAP Select data from SAP table ICRDTLMTREQUEST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ICRDTLMTREQUEST
*  INTO TABLE @DATA(IT_ICRDTLMTREQUEST2).
*--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_ICRDTLMTREQUEST INDEX 1 INTO DATA(WA_ICRDTLMTREQUEST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ICRDTLMTREQUEST>-MANDT = 1.
<ICRDTLMTREQUEST>-CASEUUID = 1.
<ICRDTLMTREQUEST>-CASEID = 1.
<ICRDTLMTREQUEST>-BUSINESSPARTNER = 1.
<ICRDTLMTREQUEST>-CREDITSEGMENT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ICRDTLMTREQUEST-CASEPROCESSOR, sy-vline,
  WA_ICRDTLMTREQUEST-CASERESPONSIBLE, sy-vline,
  WA_ICRDTLMTREQUEST-CASEEXTERNALREFERENCE, sy-vline,
  WA_ICRDTLMTREQUEST-CASETITLE, sy-vline,
  WA_ICRDTLMTREQUEST-CASECREATEDBY, sy-vline,
  WA_ICRDTLMTREQUEST-CASECREATEDON, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ICRDTLMTREQUEST 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_ICRDTLMTREQUEST 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_ICRDTLMTREQUEST INTO WA_ICRDTLMTREQUEST.


*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_ICRDTLMTREQUEST-CASEID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICRDTLMTREQUEST-CASEID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BUSINESSPARTNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ICRDTLMTREQUEST-BUSINESSPARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICRDTLMTREQUEST-BUSINESSPARTNER.
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_ICRDTLMTREQUEST_STR, 
MANDT TYPE STRING,
CASEUUID TYPE STRING,
CASEID TYPE STRING,
BUSINESSPARTNER TYPE STRING,
CREDITSEGMENT TYPE STRING,
CASEPROCESSOR TYPE STRING,
CASERESPONSIBLE TYPE STRING,
CASEEXTERNALREFERENCE TYPE STRING,
CASETITLE TYPE STRING,
CASECREATEDBY TYPE STRING,
CASECREATEDON TYPE STRING,
CASELASTCHANGEDBY TYPE STRING,
CASELASTCHANGEDON TYPE STRING,
CASECLOSEDBY TYPE STRING,
CASECLOSEDTIME TYPE STRING,
CASEPLANNEDCLOSEDATE TYPE STRING,
CASEREASON TYPE STRING,
CASETYPE TYPE STRING,
CASESTATUSPROFILE TYPE STRING,
CASESTATUS TYPE STRING,
CASESYSTEMSTATUS TYPE STRING,
CASEPRIORITY TYPE STRING,
CASEAUTHORIZATIONLEVEL TYPE STRING,
CASEESCALATIONREASON TYPE STRING,
CASECATEGORY TYPE STRING,
CASESTATUSOBJECTNUMBER TYPE STRING,
CASESYSTEMSTATUSNAME TYPE STRING,
CASEUSERSTATUSNAME TYPE STRING,
CREDITLIMITUTILIZATIONPCT TYPE STRING,
BUSINESSPARTNERRATING TYPE STRING,
CREDITRISKCLASS TYPE STRING,
CRDTMGMTBUSINESSPARTNERGROUP TYPE STRING,
CREDITSEGMENTCURRENCY TYPE STRING,
CREDITLIMITAMOUNT TYPE STRING,
CREDITLIMITREQUESTEDAMOUNT TYPE STRING,
CREDITLIMITAPPROVEDAMOUNT TYPE STRING,
EXPECTEDSALESAMOUNT TYPE STRING,
CUSTOMERCREDITEXPOSUREAMOUNT TYPE STRING,
CREDITLIMITVALIDITYENDDATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ICRDTLMTREQUEST_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_ICRDTLMTREQUEST_STR-MANDT sy-vline 
WA_ICRDTLMTREQUEST_STR-CASEUUID sy-vline 
WA_ICRDTLMTREQUEST_STR-CASEID sy-vline 
WA_ICRDTLMTREQUEST_STR-BUSINESSPARTNER sy-vline 
WA_ICRDTLMTREQUEST_STR-CREDITSEGMENT sy-vline 
WA_ICRDTLMTREQUEST_STR-CASEPROCESSOR sy-vline 
WA_ICRDTLMTREQUEST_STR-CASERESPONSIBLE sy-vline 
WA_ICRDTLMTREQUEST_STR-CASEEXTERNALREFERENCE sy-vline 
WA_ICRDTLMTREQUEST_STR-CASETITLE sy-vline 
WA_ICRDTLMTREQUEST_STR-CASECREATEDBY sy-vline 
WA_ICRDTLMTREQUEST_STR-CASECREATEDON sy-vline 
WA_ICRDTLMTREQUEST_STR-CASELASTCHANGEDBY sy-vline 
WA_ICRDTLMTREQUEST_STR-CASELASTCHANGEDON sy-vline 
WA_ICRDTLMTREQUEST_STR-CASECLOSEDBY sy-vline 
WA_ICRDTLMTREQUEST_STR-CASECLOSEDTIME sy-vline 
WA_ICRDTLMTREQUEST_STR-CASEPLANNEDCLOSEDATE sy-vline 
WA_ICRDTLMTREQUEST_STR-CASEREASON sy-vline 
WA_ICRDTLMTREQUEST_STR-CASETYPE sy-vline 
WA_ICRDTLMTREQUEST_STR-CASESTATUSPROFILE sy-vline 
WA_ICRDTLMTREQUEST_STR-CASESTATUS sy-vline 
WA_ICRDTLMTREQUEST_STR-CASESYSTEMSTATUS sy-vline 
WA_ICRDTLMTREQUEST_STR-CASEPRIORITY sy-vline 
WA_ICRDTLMTREQUEST_STR-CASEAUTHORIZATIONLEVEL sy-vline 
WA_ICRDTLMTREQUEST_STR-CASEESCALATIONREASON sy-vline 
WA_ICRDTLMTREQUEST_STR-CASECATEGORY sy-vline 
WA_ICRDTLMTREQUEST_STR-CASESTATUSOBJECTNUMBER sy-vline 
WA_ICRDTLMTREQUEST_STR-CASESYSTEMSTATUSNAME sy-vline 
WA_ICRDTLMTREQUEST_STR-CASEUSERSTATUSNAME sy-vline 
WA_ICRDTLMTREQUEST_STR-CREDITLIMITUTILIZATIONPCT sy-vline 
WA_ICRDTLMTREQUEST_STR-BUSINESSPARTNERRATING sy-vline 
WA_ICRDTLMTREQUEST_STR-CREDITRISKCLASS sy-vline 
WA_ICRDTLMTREQUEST_STR-CRDTMGMTBUSINESSPARTNERGROUP sy-vline 
WA_ICRDTLMTREQUEST_STR-CREDITSEGMENTCURRENCY sy-vline 
WA_ICRDTLMTREQUEST_STR-CREDITLIMITAMOUNT sy-vline 
WA_ICRDTLMTREQUEST_STR-CREDITLIMITREQUESTEDAMOUNT sy-vline 
WA_ICRDTLMTREQUEST_STR-CREDITLIMITAPPROVEDAMOUNT sy-vline 
WA_ICRDTLMTREQUEST_STR-EXPECTEDSALESAMOUNT sy-vline 
WA_ICRDTLMTREQUEST_STR-CUSTOMERCREDITEXPOSUREAMOUNT sy-vline 
WA_ICRDTLMTREQUEST_STR-CREDITLIMITVALIDITYENDDATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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