ABAP Select data from SAP table CLABELCURROPG into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CLABELCURROPG
*  INTO TABLE @DATA(IT_CLABELCURROPG2).
*--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_CLABELCURROPG INDEX 1 INTO DATA(WA_CLABELCURROPG2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CLABELCURROPG>-MANDT = 1.
<CLABELCURROPG>-LABELSETINTERNALID = 1.
<CLABELCURROPG>-LABELSETSPECIFICATIONINTID = 1.
<CLABELCURROPG>-LABELSETSPECIFICATION = 1.
<CLABELCURROPG>-LABELSETALTERNATIVENUMBER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CLABELCURROPG-LABELSETVERSIONNUMBER, sy-vline,
  WA_CLABELCURROPG-LABELSET, sy-vline,
  WA_CLABELCURROPG-LABELSETDESCRIPTION, sy-vline,
  WA_CLABELCURROPG-LABELSETCHANGENUMBER, sy-vline,
  WA_CLABELCURROPG-LABELSETCREATEDBYUSER, sy-vline,
  WA_CLABELCURROPG-LABELSETCREATIONDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CLABELCURROPG 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_CLABELCURROPG 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_CLABELCURROPG INTO WA_CLABELCURROPG.


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

*Conversion exit ALPHA, internal->external for field LABELSETCHANGENUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CLABELCURROPG-LABELSETCHANGENUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CLABELCURROPG-LABELSETCHANGENUMBER.
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_CLABELCURROPG_STR, 
MANDT TYPE STRING,
LABELSETINTERNALID TYPE STRING,
LABELSETSPECIFICATIONINTID TYPE STRING,
LABELSETSPECIFICATION TYPE STRING,
LABELSETALTERNATIVENUMBER TYPE STRING,
LABELSETVERSIONNUMBER TYPE STRING,
LABELSET TYPE STRING,
LABELSETDESCRIPTION TYPE STRING,
LABELSETCHANGENUMBER TYPE STRING,
LABELSETCREATEDBYUSER TYPE STRING,
LABELSETCREATIONDATE TYPE STRING,
LABELSETLASTCHANGEDBYUSER TYPE STRING,
LABELSETLASTCHANGEDATE TYPE STRING,
CREATEDBYUSERNAME TYPE STRING,
LASTCHANGEDBYUSERNAME TYPE STRING,
LABELSETLASTCHANGEDATETIME TYPE STRING,
LABELSETDFLTUSAGERATING TYPE STRING,
LABELSETDFLTUSAGEVALIDITYAREA TYPE STRING,
LABELSETVALIDITYSTARTDATE TYPE STRING,
LABELSETVALIDITYENDDATE TYPE STRING,
LABELSETSTATUS TYPE STRING,
LABELSETAUTHORIZATIONGROUP TYPE STRING,
SPECIDFGDESCTEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CLABELCURROPG_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_CLABELCURROPG_STR-MANDT sy-vline 
WA_CLABELCURROPG_STR-LABELSETINTERNALID sy-vline 
WA_CLABELCURROPG_STR-LABELSETSPECIFICATIONINTID sy-vline 
WA_CLABELCURROPG_STR-LABELSETSPECIFICATION sy-vline 
WA_CLABELCURROPG_STR-LABELSETALTERNATIVENUMBER sy-vline 
WA_CLABELCURROPG_STR-LABELSETVERSIONNUMBER sy-vline 
WA_CLABELCURROPG_STR-LABELSET sy-vline 
WA_CLABELCURROPG_STR-LABELSETDESCRIPTION sy-vline 
WA_CLABELCURROPG_STR-LABELSETCHANGENUMBER sy-vline 
WA_CLABELCURROPG_STR-LABELSETCREATEDBYUSER sy-vline 
WA_CLABELCURROPG_STR-LABELSETCREATIONDATE sy-vline 
WA_CLABELCURROPG_STR-LABELSETLASTCHANGEDBYUSER sy-vline 
WA_CLABELCURROPG_STR-LABELSETLASTCHANGEDATE sy-vline 
WA_CLABELCURROPG_STR-CREATEDBYUSERNAME sy-vline 
WA_CLABELCURROPG_STR-LASTCHANGEDBYUSERNAME sy-vline 
WA_CLABELCURROPG_STR-LABELSETLASTCHANGEDATETIME sy-vline 
WA_CLABELCURROPG_STR-LABELSETDFLTUSAGERATING sy-vline 
WA_CLABELCURROPG_STR-LABELSETDFLTUSAGEVALIDITYAREA sy-vline 
WA_CLABELCURROPG_STR-LABELSETVALIDITYSTARTDATE sy-vline 
WA_CLABELCURROPG_STR-LABELSETVALIDITYENDDATE sy-vline 
WA_CLABELCURROPG_STR-LABELSETSTATUS sy-vline 
WA_CLABELCURROPG_STR-LABELSETAUTHORIZATIONGROUP sy-vline 
WA_CLABELCURROPG_STR-SPECIDFGDESCTEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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