ABAP Select data from SAP table CCGLS_G02 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CCGLS_G02 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_G02. 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_G02 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_G02 TYPE STANDARD TABLE OF CCGLS_G02,
      WA_CCGLS_G02 TYPE CCGLS_G02,
      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_G02> TYPE CCGLS_G02.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CCGLS_G02.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CCGLS_G02
  INTO TABLE IT_CCGLS_G02.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CCGLS_G02
*  INTO TABLE @DATA(IT_CCGLS_G022).
*--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_G02 INDEX 1 INTO DATA(WA_CCGLS_G022).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CCGLS_G02 ASSIGNING <CCGLS_G02>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CCGLS_G02>-VBELN = 1.
<CCGLS_G02>-KDVBELN = 1.
<CCGLS_G02>-KDBSTZD = 1.
<CCGLS_G02>-VKORG = 1.
<CCGLS_G02>-VTWEG = 1.

ENDLOOP.

LOOP AT IT_CCGLS_G02 INTO WA_CCGLS_G02.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CCGLS_G02-SPART, sy-vline,
  WA_CCGLS_G02-KUNAG, sy-vline,
  WA_CCGLS_G02-POSNR, sy-vline,
  WA_CCGLS_G02-ARKTX, sy-vline,
  WA_CCGLS_G02-KDPOS, sy-vline,
  WA_CCGLS_G02-ROUTE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CCGLS_G02 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_G02 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_G02 INTO WA_CCGLS_G02.


*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 VBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CCGLS_G02-VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CCGLS_G02-VBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNAG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CCGLS_G02-KUNAG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CCGLS_G02-KUNAG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KDPOS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CCGLS_G02-KDPOS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CCGLS_G02-KDPOS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNWE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CCGLS_G02-KUNWE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CCGLS_G02-KUNWE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CCGLS_G02-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CCGLS_G02-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CCGLS_G02-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CCGLS_G02-AUFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field PLNBEZ
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_CCGLS_G02-PLNBEZ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CCGLS_G02-PLNBEZ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field MBLNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CCGLS_G02-MBLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CCGLS_G02-MBLNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field MJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_CCGLS_G02-MJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CCGLS_G02-MJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CCGLS_G02-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CCGLS_G02-LIFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CCGLS_G02-EBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CCGLS_G02-EBELN.
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_G02_STR, 
VBELN TYPE STRING,
KDVBELN TYPE STRING,
KDBSTZD TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
KUNAG TYPE STRING,
POSNR TYPE STRING,
ARKTX TYPE STRING,
KDPOS TYPE STRING,
ROUTE TYPE STRING,
KDMAT TYPE STRING,
KUNWE TYPE STRING,
VBKTXT TYPE STRING,
VBPTXT TYPE STRING,
BOLNR TYPE STRING,
VSART TYPE STRING,
ABLAD TYPE STRING,
LFART TYPE STRING,
WERKS TYPE STRING,
MENGE TYPE STRING,
MEINS TYPE STRING,
ANZSN TYPE STRING,
SERAIL TYPE STRING,
AUFNR TYPE STRING,
AUART TYPE STRING,
PLNBEZ TYPE STRING,
PPSNR TYPE STRING,
MBLNR TYPE STRING,
MJAHR TYPE STRING,
MPSNR TYPE STRING,
LIFNR TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
HBDAT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CCGLS_G02_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_G02_STR-VBELN sy-vline 
WA_CCGLS_G02_STR-KDVBELN sy-vline 
WA_CCGLS_G02_STR-KDBSTZD sy-vline 
WA_CCGLS_G02_STR-VKORG sy-vline 
WA_CCGLS_G02_STR-VTWEG sy-vline 
WA_CCGLS_G02_STR-SPART sy-vline 
WA_CCGLS_G02_STR-KUNAG sy-vline 
WA_CCGLS_G02_STR-POSNR sy-vline 
WA_CCGLS_G02_STR-ARKTX sy-vline 
WA_CCGLS_G02_STR-KDPOS sy-vline 
WA_CCGLS_G02_STR-ROUTE sy-vline 
WA_CCGLS_G02_STR-KDMAT sy-vline 
WA_CCGLS_G02_STR-KUNWE sy-vline 
WA_CCGLS_G02_STR-VBKTXT sy-vline 
WA_CCGLS_G02_STR-VBPTXT sy-vline 
WA_CCGLS_G02_STR-BOLNR sy-vline 
WA_CCGLS_G02_STR-VSART sy-vline 
WA_CCGLS_G02_STR-ABLAD sy-vline 
WA_CCGLS_G02_STR-LFART sy-vline 
WA_CCGLS_G02_STR-WERKS sy-vline 
WA_CCGLS_G02_STR-MENGE sy-vline 
WA_CCGLS_G02_STR-MEINS sy-vline 
WA_CCGLS_G02_STR-ANZSN sy-vline 
WA_CCGLS_G02_STR-SERAIL sy-vline 
WA_CCGLS_G02_STR-AUFNR sy-vline 
WA_CCGLS_G02_STR-AUART sy-vline 
WA_CCGLS_G02_STR-PLNBEZ sy-vline 
WA_CCGLS_G02_STR-PPSNR sy-vline 
WA_CCGLS_G02_STR-MBLNR sy-vline 
WA_CCGLS_G02_STR-MJAHR sy-vline 
WA_CCGLS_G02_STR-MPSNR sy-vline 
WA_CCGLS_G02_STR-LIFNR sy-vline 
WA_CCGLS_G02_STR-EBELN sy-vline 
WA_CCGLS_G02_STR-EBELP sy-vline 
WA_CCGLS_G02_STR-HBDAT sy-vline      INTO ld_text SEPARATED BY SPACE.

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