ABAP Select data from SAP table CEDDB into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CEDDB
*  INTO TABLE @DATA(IT_CEDDB2).
*--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_CEDDB INDEX 1 INTO DATA(WA_CEDDB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CEDDB>-METHOD = 1.
<CEDDB>-SOURCE = 1.
<CEDDB>-PROGRAM = 1.
<CEDDB>-DATAFORM = 1.
<CEDDB>-TSTMPFORM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CEDDB-TIMESTMP, sy-vline,
  WA_CEDDB-DEFINED, sy-vline,
  WA_CEDDB-PA_TYPE, sy-vline,
  WA_CEDDB-TRKEYNR, sy-vline,
  WA_CEDDB-TRSTATTXT, sy-vline,
  WA_CEDDB-UPDMODE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CEDDB 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_CEDDB 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_CEDDB INTO WA_CEDDB.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_CEDDB_STR, 
METHOD TYPE STRING,
SOURCE TYPE STRING,
PROGRAM TYPE STRING,
DATAFORM TYPE STRING,
TSTMPFORM TYPE STRING,
TIMESTMP TYPE STRING,
DEFINED TYPE STRING,
PA_TYPE TYPE STRING,
TRKEYNR TYPE STRING,
TRSTATTXT TYPE STRING,
UPDMODE TYPE STRING,
TRUPDMODE TYPE STRING,
KCUPDMODE TYPE STRING,
FLAG TYPE STRING,
LRAWLENGTH TYPE STRING,
LRAW0300 TYPE STRING,
LRAW0400 TYPE STRING,
LRAW0500 TYPE STRING,
LRAW0800 TYPE STRING,
LRAW1000 TYPE STRING,
LRAW1500 TYPE STRING,
LRAW3500 TYPE STRING,
LRAW7000 TYPE STRING,
TRST_NUMREC TYPE STRING,
TRST_KEYINS TYPE STRING,
TRST_SUMINS TYPE STRING,
TRST_SUMUPD TYPE STRING,
TRST_STEPS TYPE STRING,
USEDBAGG TYPE STRING,
DROP_INDEX TYPE STRING,
MAX_MEM_USAGE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CEDDB_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_CEDDB_STR-METHOD sy-vline 
WA_CEDDB_STR-SOURCE sy-vline 
WA_CEDDB_STR-PROGRAM sy-vline 
WA_CEDDB_STR-DATAFORM sy-vline 
WA_CEDDB_STR-TSTMPFORM sy-vline 
WA_CEDDB_STR-TIMESTMP sy-vline 
WA_CEDDB_STR-DEFINED sy-vline 
WA_CEDDB_STR-PA_TYPE sy-vline 
WA_CEDDB_STR-TRKEYNR sy-vline 
WA_CEDDB_STR-TRSTATTXT sy-vline 
WA_CEDDB_STR-UPDMODE sy-vline 
WA_CEDDB_STR-TRUPDMODE sy-vline 
WA_CEDDB_STR-KCUPDMODE sy-vline 
WA_CEDDB_STR-FLAG sy-vline 
WA_CEDDB_STR-LRAWLENGTH sy-vline 
WA_CEDDB_STR-LRAW0300 sy-vline 
WA_CEDDB_STR-LRAW0400 sy-vline 
WA_CEDDB_STR-LRAW0500 sy-vline 
WA_CEDDB_STR-LRAW0800 sy-vline 
WA_CEDDB_STR-LRAW1000 sy-vline 
WA_CEDDB_STR-LRAW1500 sy-vline 
WA_CEDDB_STR-LRAW3500 sy-vline 
WA_CEDDB_STR-LRAW7000 sy-vline 
WA_CEDDB_STR-TRST_NUMREC sy-vline 
WA_CEDDB_STR-TRST_KEYINS sy-vline 
WA_CEDDB_STR-TRST_SUMINS sy-vline 
WA_CEDDB_STR-TRST_SUMUPD sy-vline 
WA_CEDDB_STR-TRST_STEPS sy-vline 
WA_CEDDB_STR-USEDBAGG sy-vline 
WA_CEDDB_STR-DROP_INDEX sy-vline 
WA_CEDDB_STR-MAX_MEM_USAGE sy-vline      INTO ld_text SEPARATED BY SPACE.

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