ABAP Select data from SAP table CICLEXPNRESERVE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CICLEXPNRESERVE
*  INTO TABLE @DATA(IT_CICLEXPNRESERVE2).
*--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_CICLEXPNRESERVE INDEX 1 INTO DATA(WA_CICLEXPNRESERVE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CICLEXPNRESERVE>-MANDT = 1.
<CICLEXPNRESERVE>-INSURANCECLAIM = 1.
<CICLEXPNRESERVE>-INSURCLMSUBCLM = 1.
<CICLEXPNRESERVE>-INSURCLMRSRVTYPE = 1.
<CICLEXPNRESERVE>-INSURCLMRESERVECURRENCY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CICLEXPNRESERVE-INSURCLMRESERVEUUID, sy-vline,
  WA_CICLEXPNRESERVE-INSURANCECLAIMFOREDIT, sy-vline,
  WA_CICLEXPNRESERVE-INSURANCECLAIMSUBCLAIMFOREDIT, sy-vline,
  WA_CICLEXPNRESERVE-INSURCLMRESERVETYPEFOREDIT, sy-vline,
  WA_CICLEXPNRESERVE-INSURCLMRESERVECURRENCYFOREDIT, sy-vline,
  WA_CICLEXPNRESERVE-INSURCLMLOSSEXPNTYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CICLEXPNRESERVE 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_CICLEXPNRESERVE 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_CICLEXPNRESERVE INTO WA_CICLEXPNRESERVE.


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

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

*Conversion exit ALPHA, internal->external for field BUSINESSPARTNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CICLEXPNRESERVE-BUSINESSPARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CICLEXPNRESERVE-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_CICLEXPNRESERVE_STR, 
MANDT TYPE STRING,
INSURANCECLAIM TYPE STRING,
INSURCLMSUBCLM TYPE STRING,
INSURCLMRSRVTYPE TYPE STRING,
INSURCLMRESERVECURRENCY TYPE STRING,
INSURCLMRESERVEUUID TYPE STRING,
INSURANCECLAIMFOREDIT TYPE STRING,
INSURANCECLAIMSUBCLAIMFOREDIT TYPE STRING,
INSURCLMRESERVETYPEFOREDIT TYPE STRING,
INSURCLMRESERVECURRENCYFOREDIT TYPE STRING,
INSURCLMLOSSEXPNTYPE TYPE STRING,
INSURCLMEXPECTATIONRESERVE TYPE STRING,
INSURCLMRSRVCHANGETIME TYPE STRING,
INSURCLMCHANGEDATE TYPE STRING,
GROSSRESERVEAMOUNT TYPE STRING,
INSURCLMNETRESERVEAMOUNT TYPE STRING,
INSURCLMRSRVPAIDTODATEPCT TYPE STRING,
INSURCLMOUTSDNGRSRVAMT TYPE STRING,
POSTINGDATE TYPE STRING,
INSURCLMDISPLAYCURRENCY TYPE STRING,
INSURCLMRSRVMETHODNAME TYPE STRING,
INSURCLMRSRVMETHODTEXT TYPE STRING,
INSURCLMRESERVECHANGERSN TYPE STRING,
INSURCLMRESERVECHANGERSNNAME TYPE STRING,
INSURCLMRESERVEPAYTAMT TYPE STRING,
INSURCLMRSRVPENDINGAMOUNT TYPE STRING,
INSURCLMIMAGEURL TYPE STRING,
BUSINESSPARTNER TYPE STRING,
INSURCLMTYPE TYPE STRING,
INSURCLMTYPEGENERATION TYPE STRING,
INSURCLMTYPEVERS TYPE STRING,
INSURCLMSUBCLMTYPE TYPE STRING,
INSURCLMRSRVTYPEDESC TYPE STRING,
INSURCLMSUBCLMDESCRIPTIONTEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CICLEXPNRESERVE_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_CICLEXPNRESERVE_STR-MANDT sy-vline 
WA_CICLEXPNRESERVE_STR-INSURANCECLAIM sy-vline 
WA_CICLEXPNRESERVE_STR-INSURCLMSUBCLM sy-vline 
WA_CICLEXPNRESERVE_STR-INSURCLMRSRVTYPE sy-vline 
WA_CICLEXPNRESERVE_STR-INSURCLMRESERVECURRENCY sy-vline 
WA_CICLEXPNRESERVE_STR-INSURCLMRESERVEUUID sy-vline 
WA_CICLEXPNRESERVE_STR-INSURANCECLAIMFOREDIT sy-vline 
WA_CICLEXPNRESERVE_STR-INSURANCECLAIMSUBCLAIMFOREDIT sy-vline 
WA_CICLEXPNRESERVE_STR-INSURCLMRESERVETYPEFOREDIT sy-vline 
WA_CICLEXPNRESERVE_STR-INSURCLMRESERVECURRENCYFOREDIT sy-vline 
WA_CICLEXPNRESERVE_STR-INSURCLMLOSSEXPNTYPE sy-vline 
WA_CICLEXPNRESERVE_STR-INSURCLMEXPECTATIONRESERVE sy-vline 
WA_CICLEXPNRESERVE_STR-INSURCLMRSRVCHANGETIME sy-vline 
WA_CICLEXPNRESERVE_STR-INSURCLMCHANGEDATE sy-vline 
WA_CICLEXPNRESERVE_STR-GROSSRESERVEAMOUNT sy-vline 
WA_CICLEXPNRESERVE_STR-INSURCLMNETRESERVEAMOUNT sy-vline 
WA_CICLEXPNRESERVE_STR-INSURCLMRSRVPAIDTODATEPCT sy-vline 
WA_CICLEXPNRESERVE_STR-INSURCLMOUTSDNGRSRVAMT sy-vline 
WA_CICLEXPNRESERVE_STR-POSTINGDATE sy-vline 
WA_CICLEXPNRESERVE_STR-INSURCLMDISPLAYCURRENCY sy-vline 
WA_CICLEXPNRESERVE_STR-INSURCLMRSRVMETHODNAME sy-vline 
WA_CICLEXPNRESERVE_STR-INSURCLMRSRVMETHODTEXT sy-vline 
WA_CICLEXPNRESERVE_STR-INSURCLMRESERVECHANGERSN sy-vline 
WA_CICLEXPNRESERVE_STR-INSURCLMRESERVECHANGERSNNAME sy-vline 
WA_CICLEXPNRESERVE_STR-INSURCLMRESERVEPAYTAMT sy-vline 
WA_CICLEXPNRESERVE_STR-INSURCLMRSRVPENDINGAMOUNT sy-vline 
WA_CICLEXPNRESERVE_STR-INSURCLMIMAGEURL sy-vline 
WA_CICLEXPNRESERVE_STR-BUSINESSPARTNER sy-vline 
WA_CICLEXPNRESERVE_STR-INSURCLMTYPE sy-vline 
WA_CICLEXPNRESERVE_STR-INSURCLMTYPEGENERATION sy-vline 
WA_CICLEXPNRESERVE_STR-INSURCLMTYPEVERS sy-vline 
WA_CICLEXPNRESERVE_STR-INSURCLMSUBCLMTYPE sy-vline 
WA_CICLEXPNRESERVE_STR-INSURCLMRSRVTYPEDESC sy-vline 
WA_CICLEXPNRESERVE_STR-INSURCLMSUBCLMDESCRIPTIONTEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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