ABAP Select data from SAP table CCGLS_OEDLIOT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CCGLS_OEDLIOT
*  INTO TABLE @DATA(IT_CCGLS_OEDLIOT2).
*--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_CCGLS_OEDLIOT INDEX 1 INTO DATA(WA_CCGLS_OEDLIOT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CCGLS_OEDLIOT>-MARKFLG = 1.
<CCGLS_OEDLIOT>-SELEFLG = 1.
<CCGLS_OEDLIOT>-LINENO = 1.
<CCGLS_OEDLIOT>-LINEMOD = 1.
<CCGLS_OEDLIOT>-CHCOFLG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CCGLS_OEDLIOT-LOCKMOD, sy-vline,
  WA_CCGLS_OEDLIOT-INTRFLG, sy-vline,
  WA_CCGLS_OEDLIOT-MANDT, sy-vline,
  WA_CCGLS_OEDLIOT-DOKAR, sy-vline,
  WA_CCGLS_OEDLIOT-DOKNR, sy-vline,
  WA_CCGLS_OEDLIOT-DOKVR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CCGLS_OEDLIOT 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_CCGLS_OEDLIOT 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_CCGLS_OEDLIOT INTO WA_CCGLS_OEDLIOT.


*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 DOKNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CCGLS_OEDLIOT-DOKNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CCGLS_OEDLIOT-DOKNR.
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_CCGLS_OEDLIOT_STR, 
MARKFLG TYPE STRING,
SELEFLG TYPE STRING,
LINENO TYPE STRING,
LINEMOD TYPE STRING,
CHCOFLG TYPE STRING,
LOCKMOD TYPE STRING,
INTRFLG TYPE STRING,
MANDT TYPE STRING,
DOKAR TYPE STRING,
DOKNR TYPE STRING,
DOKVR TYPE STRING,
DOKTL TYPE STRING,
LSYTYPE TYPE STRING,
LSYID TYPE STRING,
FLG_MAND TYPE STRING,
FLG_READ TYPE STRING,
FLG_AUDIT TYPE STRING,
ORD TYPE STRING,
CHECK_FUNC TYPE STRING,
FORMAT_FUNC TYPE STRING,
LIST_FUNC TYPE STRING,
DKTXT TYPE STRING,
LSYNAM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CCGLS_OEDLIOT_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_CCGLS_OEDLIOT_STR-MARKFLG sy-vline 
WA_CCGLS_OEDLIOT_STR-SELEFLG sy-vline 
WA_CCGLS_OEDLIOT_STR-LINENO sy-vline 
WA_CCGLS_OEDLIOT_STR-LINEMOD sy-vline 
WA_CCGLS_OEDLIOT_STR-CHCOFLG sy-vline 
WA_CCGLS_OEDLIOT_STR-LOCKMOD sy-vline 
WA_CCGLS_OEDLIOT_STR-INTRFLG sy-vline 
WA_CCGLS_OEDLIOT_STR-MANDT sy-vline 
WA_CCGLS_OEDLIOT_STR-DOKAR sy-vline 
WA_CCGLS_OEDLIOT_STR-DOKNR sy-vline 
WA_CCGLS_OEDLIOT_STR-DOKVR sy-vline 
WA_CCGLS_OEDLIOT_STR-DOKTL sy-vline 
WA_CCGLS_OEDLIOT_STR-LSYTYPE sy-vline 
WA_CCGLS_OEDLIOT_STR-LSYID sy-vline 
WA_CCGLS_OEDLIOT_STR-FLG_MAND sy-vline 
WA_CCGLS_OEDLIOT_STR-FLG_READ sy-vline 
WA_CCGLS_OEDLIOT_STR-FLG_AUDIT sy-vline 
WA_CCGLS_OEDLIOT_STR-ORD sy-vline 
WA_CCGLS_OEDLIOT_STR-CHECK_FUNC sy-vline 
WA_CCGLS_OEDLIOT_STR-FORMAT_FUNC sy-vline 
WA_CCGLS_OEDLIOT_STR-LIST_FUNC sy-vline 
WA_CCGLS_OEDLIOT_STR-DKTXT sy-vline 
WA_CCGLS_OEDLIOT_STR-LSYNAM sy-vline      INTO ld_text SEPARATED BY SPACE.

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