ABAP Select data from SAP table CTCCBASE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CTCCBASE
*  INTO TABLE @DATA(IT_CTCCBASE2).
*--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_CTCCBASE INDEX 1 INTO DATA(WA_CTCCBASE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CTCCBASE>-MANDT = 1.
<CTCCBASE>-TRANSPCHRGCALCBASENODEUUID = 1.
<CTCCBASE>-TRANSPCHRGCALCBASEUUID = 1.
<CTCCBASE>-TRANSPCHARGEITEMELEMENTUUID = 1.
<CTCCBASE>-TRANSPORTATIONCHARGESOBJUUID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CTCCBASE-TRANSPCHRGCALCULATIONBASE, sy-vline,
  WA_CTCCBASE-TRANSPCALCULATIONBASETEXT, sy-vline,
  WA_CTCCBASE-TRANSPSCALEITEMQUANTITYUNIT, sy-vline,
  WA_CTCCBASE-TRANSPSCALEITEMQUANTITY, sy-vline,
  WA_CTCCBASE-TRANSPDATASOURCEQTYUNIT, sy-vline,
  WA_CTCCBASE-TRANSPDATASOURCEQUANTITY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CTCCBASE 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_CTCCBASE 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_CTCCBASE INTO WA_CTCCBASE.


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

*Conversion exit CUNIT, internal->external for field TRANSPDATASOURCEQTYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CTCCBASE-TRANSPDATASOURCEQTYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CTCCBASE-TRANSPDATASOURCEQTYUNIT.
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_CTCCBASE_STR, 
MANDT TYPE STRING,
TRANSPCHRGCALCBASENODEUUID TYPE STRING,
TRANSPCHRGCALCBASEUUID TYPE STRING,
TRANSPCHARGEITEMELEMENTUUID TYPE STRING,
TRANSPORTATIONCHARGESOBJUUID TYPE STRING,
TRANSPCHRGCALCULATIONBASE TYPE STRING,
TRANSPCALCULATIONBASETEXT TYPE STRING,
TRANSPSCALEITEMQUANTITYUNIT TYPE STRING,
TRANSPSCALEITEMQUANTITY TYPE STRING,
TRANSPDATASOURCEQTYUNIT TYPE STRING,
TRANSPDATASOURCEQUANTITY TYPE STRING,
TRANSPDATASOURCEQTYISNUMERIC TYPE STRING,
TRANSPSCALEITEMVALUE TYPE STRING,
TRANSPDATASOURCEVALUE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CTCCBASE_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_CTCCBASE_STR-MANDT sy-vline 
WA_CTCCBASE_STR-TRANSPCHRGCALCBASENODEUUID sy-vline 
WA_CTCCBASE_STR-TRANSPCHRGCALCBASEUUID sy-vline 
WA_CTCCBASE_STR-TRANSPCHARGEITEMELEMENTUUID sy-vline 
WA_CTCCBASE_STR-TRANSPORTATIONCHARGESOBJUUID sy-vline 
WA_CTCCBASE_STR-TRANSPCHRGCALCULATIONBASE sy-vline 
WA_CTCCBASE_STR-TRANSPCALCULATIONBASETEXT sy-vline 
WA_CTCCBASE_STR-TRANSPSCALEITEMQUANTITYUNIT sy-vline 
WA_CTCCBASE_STR-TRANSPSCALEITEMQUANTITY sy-vline 
WA_CTCCBASE_STR-TRANSPDATASOURCEQTYUNIT sy-vline 
WA_CTCCBASE_STR-TRANSPDATASOURCEQUANTITY sy-vline 
WA_CTCCBASE_STR-TRANSPDATASOURCEQTYISNUMERIC sy-vline 
WA_CTCCBASE_STR-TRANSPSCALEITEMVALUE sy-vline 
WA_CTCCBASE_STR-TRANSPDATASOURCEVALUE sy-vline      INTO ld_text SEPARATED BY SPACE.

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