ABAP Select data from SAP table REIS_CN_OA_L into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REIS_CN_OA_L
*  INTO TABLE @DATA(IT_REIS_CN_OA_L2).
*--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_REIS_CN_OA_L INDEX 1 INTO DATA(WA_REIS_CN_OA_L2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<REIS_CN_OA_L>-INTRENO = 1.
<REIS_CN_OA_L>-OBJECTID = 1.
<REIS_CN_OA_L>-BUKRS = 1.
<REIS_CN_OA_L>-RECNNR = 1.
<REIS_CN_OA_L>-OBJECTTEXT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_REIS_CN_OA_L-RECNTYPE, sy-vline,
  WA_REIS_CN_OA_L-RECNBEG, sy-vline,
  WA_REIS_CN_OA_L-RECNENDABS, sy-vline,
  WA_REIS_CN_OA_L-RECNEND1ST, sy-vline,
  WA_REIS_CN_OA_L-AUTHGRP, sy-vline,
  WA_REIS_CN_OA_L-RECISVALIDFROM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_REIS_CN_OA_L 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_REIS_CN_OA_L 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_REIS_CN_OA_L INTO WA_REIS_CN_OA_L.


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

*Conversion exit REDAT, internal->external for field RECNENDABS
CALL FUNCTION 'CONVERSION_EXIT_REDAT_OUTPUT'
  EXPORTING
    input =                      WA_REIS_CN_OA_L-RECNENDABS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REIS_CN_OA_L-RECNENDABS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit REDAT, internal->external for field VALIDTO
CALL FUNCTION 'CONVERSION_EXIT_REDAT_OUTPUT'
  EXPORTING
    input =                      WA_REIS_CN_OA_L-VALIDTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REIS_CN_OA_L-VALIDTO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEASUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_REIS_CN_OA_L-MEASUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REIS_CN_OA_L-MEASUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field GEN_PARTNER1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REIS_CN_OA_L-GEN_PARTNER1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REIS_CN_OA_L-GEN_PARTNER1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field GEN_PARTNER2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REIS_CN_OA_L-GEN_PARTNER2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REIS_CN_OA_L-GEN_PARTNER2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PARTNER_BP1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REIS_CN_OA_L-PARTNER_BP1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REIS_CN_OA_L-PARTNER_BP1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SXIDN, internal->external for field SMTP_ADDR_BP1
CALL FUNCTION 'CONVERSION_EXIT_SXIDN_OUTPUT'
  EXPORTING
    input =                      WA_REIS_CN_OA_L-SMTP_ADDR_BP1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REIS_CN_OA_L-SMTP_ADDR_BP1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PARTNER_BP2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REIS_CN_OA_L-PARTNER_BP2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REIS_CN_OA_L-PARTNER_BP2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SXIDN, internal->external for field SMTP_ADDR_BP2
CALL FUNCTION 'CONVERSION_EXIT_SXIDN_OUTPUT'
  EXPORTING
    input =                      WA_REIS_CN_OA_L-SMTP_ADDR_BP2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REIS_CN_OA_L-SMTP_ADDR_BP2.
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_REIS_CN_OA_L_STR, 
INTRENO TYPE STRING,
OBJECTID TYPE STRING,
BUKRS TYPE STRING,
RECNNR TYPE STRING,
OBJECTTEXT TYPE STRING,
RECNTYPE TYPE STRING,
RECNBEG TYPE STRING,
RECNENDABS TYPE STRING,
RECNEND1ST TYPE STRING,
AUTHGRP TYPE STRING,
RECISVALIDFROM TYPE STRING,
RECISVALIDTO TYPE STRING,
MANDT TYPE STRING,
OBJNRSRC TYPE STRING,
OBJASSTYPE TYPE STRING,
OBJNRTRG TYPE STRING,
VALIDFROM TYPE STRING,
VALIDTO TYPE STRING,
ASSIGNONLYINFO TYPE STRING,
OBJNRSRCARCH TYPE STRING,
FLGENTYPE TYPE STRING,
ISMAINASSET TYPE STRING,
MEASVALUE TYPE STRING,
MEASUNIT TYPE STRING,
ISMULTIASSGEN TYPE STRING,
POSSDATEFROM TYPE STRING,
POSSDATETO TYPE STRING,
ISDETERMOPTRATE TYPE STRING,
PEPLANNEDDATE TYPE STRING,
PEEFFECTDATE TYPE STRING,
PELOCATION TYPE STRING,
ISLEADINGOBJECT TYPE STRING,
XOBJASSTYPE TYPE STRING,
XOBJTYPESRC TYPE STRING,
XOBJTYPETRG TYPE STRING,
IDENTSRC TYPE STRING,
IDENTTRG TYPE STRING,
IDENTKEYSRC TYPE STRING,
IDENTKEYTRG TYPE STRING,
DESCRIPTIONSRC TYPE STRING,
DESCRIPTIONTRG TYPE STRING,
XLOBJTYPESRC TYPE STRING,
XLOBJTYPETRG TYPE STRING,
HASNOTE TYPE STRING,
RSOBJTYPE TYPE STRING,
XRSOBJTYPE TYPE STRING,
OBJTYPESRC TYPE STRING,
OBJTYPETRG TYPE STRING,
GEN_OBJTYPE TYPE STRING,
GEN_OBJNR TYPE STRING,
GEN_CONTRACT TYPE STRING,
GEN_PARTNER1 TYPE STRING,
GEN_PARTNER2 TYPE STRING,
ALVROWS TYPE STRING,
ROLE_BP1 TYPE STRING,
XROLE_BP1 TYPE STRING,
PARTNER_BP1 TYPE STRING,
XPARTNER_BP1 TYPE STRING,
TEL_NUMBER_LONG_BP1 TYPE STRING,
FAX_NUMBER_LONG_BP1 TYPE STRING,
SMTP_ADDR_BP1 TYPE STRING,
XNAME_BP1 TYPE STRING,
STREET_BP1 TYPE STRING,
HOUSE_NUM1_BP1 TYPE STRING,
POST_CODE1_BP1 TYPE STRING,
CITY1_BP1 TYPE STRING,
CITY2_BP1 TYPE STRING,
REGION_BP1 TYPE STRING,
PO_BOX_BP1 TYPE STRING,
POST_CODE2_BP1 TYPE STRING,
ROLECAT_BP1 TYPE STRING,
ADDRTYPE_BP1 TYPE STRING,
HOUSE_NUM2_BP1 TYPE STRING,
ROLE_BP2 TYPE STRING,
XROLE_BP2 TYPE STRING,
PARTNER_BP2 TYPE STRING,
XPARTNER_BP2 TYPE STRING,
TEL_NUMBER_LONG_BP2 TYPE STRING,
FAX_NUMBER_LONG_BP2 TYPE STRING,
SMTP_ADDR_BP2 TYPE STRING,
XNAME_BP2 TYPE STRING,
STREET_BP2 TYPE STRING,
HOUSE_NUM1_BP2 TYPE STRING,
POST_CODE1_BP2 TYPE STRING,
CITY1_BP2 TYPE STRING,
CITY2_BP2 TYPE STRING,
REGION_BP2 TYPE STRING,
PO_BOX_BP2 TYPE STRING,
POST_CODE2_BP2 TYPE STRING,
ROLECAT_BP2 TYPE STRING,
ADDRTYPE_BP2 TYPE STRING,
HOUSE_NUM2_BP2 TYPE STRING,
RECNMULTIOBJASS TYPE STRING,
RELEVANTEVAL TYPE STRING,
XRELEVANTEVAL TYPE STRING,
CNSUBJECTTYPE TYPE STRING,
XCNSUBJECTTYPE TYPE STRING,
ACCTXOBJTYPE TYPE STRING,
ACCTOBJIDENTKEY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_REIS_CN_OA_L_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_REIS_CN_OA_L_STR-INTRENO sy-vline 
WA_REIS_CN_OA_L_STR-OBJECTID sy-vline 
WA_REIS_CN_OA_L_STR-BUKRS sy-vline 
WA_REIS_CN_OA_L_STR-RECNNR sy-vline 
WA_REIS_CN_OA_L_STR-OBJECTTEXT sy-vline 
WA_REIS_CN_OA_L_STR-RECNTYPE sy-vline 
WA_REIS_CN_OA_L_STR-RECNBEG sy-vline 
WA_REIS_CN_OA_L_STR-RECNENDABS sy-vline 
WA_REIS_CN_OA_L_STR-RECNEND1ST sy-vline 
WA_REIS_CN_OA_L_STR-AUTHGRP sy-vline 
WA_REIS_CN_OA_L_STR-RECISVALIDFROM sy-vline 
WA_REIS_CN_OA_L_STR-RECISVALIDTO sy-vline 
WA_REIS_CN_OA_L_STR-MANDT sy-vline 
WA_REIS_CN_OA_L_STR-OBJNRSRC sy-vline 
WA_REIS_CN_OA_L_STR-OBJASSTYPE sy-vline 
WA_REIS_CN_OA_L_STR-OBJNRTRG sy-vline 
WA_REIS_CN_OA_L_STR-VALIDFROM sy-vline 
WA_REIS_CN_OA_L_STR-VALIDTO sy-vline 
WA_REIS_CN_OA_L_STR-ASSIGNONLYINFO sy-vline 
WA_REIS_CN_OA_L_STR-OBJNRSRCARCH sy-vline 
WA_REIS_CN_OA_L_STR-FLGENTYPE sy-vline 
WA_REIS_CN_OA_L_STR-ISMAINASSET sy-vline 
WA_REIS_CN_OA_L_STR-MEASVALUE sy-vline 
WA_REIS_CN_OA_L_STR-MEASUNIT sy-vline 
WA_REIS_CN_OA_L_STR-ISMULTIASSGEN sy-vline 
WA_REIS_CN_OA_L_STR-POSSDATEFROM sy-vline 
WA_REIS_CN_OA_L_STR-POSSDATETO sy-vline 
WA_REIS_CN_OA_L_STR-ISDETERMOPTRATE sy-vline 
WA_REIS_CN_OA_L_STR-PEPLANNEDDATE sy-vline 
WA_REIS_CN_OA_L_STR-PEEFFECTDATE sy-vline 
WA_REIS_CN_OA_L_STR-PELOCATION sy-vline 
WA_REIS_CN_OA_L_STR-ISLEADINGOBJECT sy-vline 
WA_REIS_CN_OA_L_STR-XOBJASSTYPE sy-vline 
WA_REIS_CN_OA_L_STR-XOBJTYPESRC sy-vline 
WA_REIS_CN_OA_L_STR-XOBJTYPETRG sy-vline 
WA_REIS_CN_OA_L_STR-IDENTSRC sy-vline 
WA_REIS_CN_OA_L_STR-IDENTTRG sy-vline 
WA_REIS_CN_OA_L_STR-IDENTKEYSRC sy-vline 
WA_REIS_CN_OA_L_STR-IDENTKEYTRG sy-vline 
WA_REIS_CN_OA_L_STR-DESCRIPTIONSRC sy-vline 
WA_REIS_CN_OA_L_STR-DESCRIPTIONTRG sy-vline 
WA_REIS_CN_OA_L_STR-XLOBJTYPESRC sy-vline 
WA_REIS_CN_OA_L_STR-XLOBJTYPETRG sy-vline 
WA_REIS_CN_OA_L_STR-HASNOTE sy-vline 
WA_REIS_CN_OA_L_STR-RSOBJTYPE sy-vline 
WA_REIS_CN_OA_L_STR-XRSOBJTYPE sy-vline 
WA_REIS_CN_OA_L_STR-OBJTYPESRC sy-vline 
WA_REIS_CN_OA_L_STR-OBJTYPETRG sy-vline 
WA_REIS_CN_OA_L_STR-GEN_OBJTYPE sy-vline 
WA_REIS_CN_OA_L_STR-GEN_OBJNR sy-vline 
WA_REIS_CN_OA_L_STR-GEN_CONTRACT sy-vline 
WA_REIS_CN_OA_L_STR-GEN_PARTNER1 sy-vline 
WA_REIS_CN_OA_L_STR-GEN_PARTNER2 sy-vline 
WA_REIS_CN_OA_L_STR-ALVROWS sy-vline 
WA_REIS_CN_OA_L_STR-ROLE_BP1 sy-vline 
WA_REIS_CN_OA_L_STR-XROLE_BP1 sy-vline 
WA_REIS_CN_OA_L_STR-PARTNER_BP1 sy-vline 
WA_REIS_CN_OA_L_STR-XPARTNER_BP1 sy-vline 
WA_REIS_CN_OA_L_STR-TEL_NUMBER_LONG_BP1 sy-vline 
WA_REIS_CN_OA_L_STR-FAX_NUMBER_LONG_BP1 sy-vline 
WA_REIS_CN_OA_L_STR-SMTP_ADDR_BP1 sy-vline 
WA_REIS_CN_OA_L_STR-XNAME_BP1 sy-vline 
WA_REIS_CN_OA_L_STR-STREET_BP1 sy-vline 
WA_REIS_CN_OA_L_STR-HOUSE_NUM1_BP1 sy-vline 
WA_REIS_CN_OA_L_STR-POST_CODE1_BP1 sy-vline 
WA_REIS_CN_OA_L_STR-CITY1_BP1 sy-vline 
WA_REIS_CN_OA_L_STR-CITY2_BP1 sy-vline 
WA_REIS_CN_OA_L_STR-REGION_BP1 sy-vline 
WA_REIS_CN_OA_L_STR-PO_BOX_BP1 sy-vline 
WA_REIS_CN_OA_L_STR-POST_CODE2_BP1 sy-vline 
WA_REIS_CN_OA_L_STR-ROLECAT_BP1 sy-vline 
WA_REIS_CN_OA_L_STR-ADDRTYPE_BP1 sy-vline 
WA_REIS_CN_OA_L_STR-HOUSE_NUM2_BP1 sy-vline 
WA_REIS_CN_OA_L_STR-ROLE_BP2 sy-vline 
WA_REIS_CN_OA_L_STR-XROLE_BP2 sy-vline 
WA_REIS_CN_OA_L_STR-PARTNER_BP2 sy-vline 
WA_REIS_CN_OA_L_STR-XPARTNER_BP2 sy-vline 
WA_REIS_CN_OA_L_STR-TEL_NUMBER_LONG_BP2 sy-vline 
WA_REIS_CN_OA_L_STR-FAX_NUMBER_LONG_BP2 sy-vline 
WA_REIS_CN_OA_L_STR-SMTP_ADDR_BP2 sy-vline 
WA_REIS_CN_OA_L_STR-XNAME_BP2 sy-vline 
WA_REIS_CN_OA_L_STR-STREET_BP2 sy-vline 
WA_REIS_CN_OA_L_STR-HOUSE_NUM1_BP2 sy-vline 
WA_REIS_CN_OA_L_STR-POST_CODE1_BP2 sy-vline 
WA_REIS_CN_OA_L_STR-CITY1_BP2 sy-vline 
WA_REIS_CN_OA_L_STR-CITY2_BP2 sy-vline 
WA_REIS_CN_OA_L_STR-REGION_BP2 sy-vline 
WA_REIS_CN_OA_L_STR-PO_BOX_BP2 sy-vline 
WA_REIS_CN_OA_L_STR-POST_CODE2_BP2 sy-vline 
WA_REIS_CN_OA_L_STR-ROLECAT_BP2 sy-vline 
WA_REIS_CN_OA_L_STR-ADDRTYPE_BP2 sy-vline 
WA_REIS_CN_OA_L_STR-HOUSE_NUM2_BP2 sy-vline 
WA_REIS_CN_OA_L_STR-RECNMULTIOBJASS sy-vline 
WA_REIS_CN_OA_L_STR-RELEVANTEVAL sy-vline 
WA_REIS_CN_OA_L_STR-XRELEVANTEVAL sy-vline 
WA_REIS_CN_OA_L_STR-CNSUBJECTTYPE sy-vline 
WA_REIS_CN_OA_L_STR-XCNSUBJECTTYPE sy-vline 
WA_REIS_CN_OA_L_STR-ACCTXOBJTYPE sy-vline 
WA_REIS_CN_OA_L_STR-ACCTOBJIDENTKEY sy-vline      INTO ld_text SEPARATED BY SPACE.

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