ABAP Select data from SAP table RILOCP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RILOCP
*  INTO TABLE @DATA(IT_RILOCP2).
*--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_RILOCP INDEX 1 INTO DATA(WA_RILOCP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RILOCP>-CPTXT = 1.
<RILOCP>-CPTXA = 1.
<RILOCP>-CPTXI = 1.
<RILOCP>-CPCLS = 1.
<RILOCP>-CPDOC = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RILOCP-CPPRT, sy-vline,
  WA_RILOCP-CPPRM, sy-vline,
  WA_RILOCP-CPADR, sy-vline,
  WA_RILOCP-CPMPT, sy-vline,
  WA_RILOCP-CPMPX, sy-vline,
  WA_RILOCP-CPMPC, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RILOCP 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_RILOCP 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_RILOCP INTO WA_RILOCP.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_RILOCP_STR, 
CPTXT TYPE STRING,
CPTXA TYPE STRING,
CPTXI TYPE STRING,
CPCLS TYPE STRING,
CPDOC TYPE STRING,
CPPRT TYPE STRING,
CPPRM TYPE STRING,
CPADR TYPE STRING,
CPMPT TYPE STRING,
CPMPX TYPE STRING,
CPMPC TYPE STRING,
CPMPD TYPE STRING,
CPTAX TYPE STRING,
CPFHM TYPE STRING,
CPKON TYPE STRING,
CPGER TYPE STRING,
CPINS TYPE STRING,
CPLFE TYPE STRING,
CPLFEC TYPE STRING,
J_3GCPBAU TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RILOCP_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_RILOCP_STR-CPTXT sy-vline 
WA_RILOCP_STR-CPTXA sy-vline 
WA_RILOCP_STR-CPTXI sy-vline 
WA_RILOCP_STR-CPCLS sy-vline 
WA_RILOCP_STR-CPDOC sy-vline 
WA_RILOCP_STR-CPPRT sy-vline 
WA_RILOCP_STR-CPPRM sy-vline 
WA_RILOCP_STR-CPADR sy-vline 
WA_RILOCP_STR-CPMPT sy-vline 
WA_RILOCP_STR-CPMPX sy-vline 
WA_RILOCP_STR-CPMPC sy-vline 
WA_RILOCP_STR-CPMPD sy-vline 
WA_RILOCP_STR-CPTAX sy-vline 
WA_RILOCP_STR-CPFHM sy-vline 
WA_RILOCP_STR-CPKON sy-vline 
WA_RILOCP_STR-CPGER sy-vline 
WA_RILOCP_STR-CPINS sy-vline 
WA_RILOCP_STR-CPLFE sy-vline 
WA_RILOCP_STR-CPLFEC sy-vline 
WA_RILOCP_STR-J_3GCPBAU sy-vline      INTO ld_text SEPARATED BY SPACE.

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