ABAP Select data from SAP table CEBSE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CEBSE
*  INTO TABLE @DATA(IT_CEBSE2).
*--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_CEBSE INDEX 1 INTO DATA(WA_CEBSE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CEBSE>-SWAHL = 1.
<CEBSE>-GWAHL = 1.
<CEBSE>-LSIND = 1.
<CEBSE>-CEPNN = 1.
<CEBSE>-FNAM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CEBSE-LNMI, sy-vline,
  WA_CEBSE-LOW, sy-vline,
  WA_CEBSE-HIGH, sy-vline,
  WA_CEBSE-OPTION, sy-vline,
  WA_CEBSE-LNG, sy-vline,
  WA_CEBSE-LNGW, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CEBSE 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_CEBSE 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_CEBSE INTO WA_CEBSE.


*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_CEBSE_STR, 
SWAHL TYPE STRING,
GWAHL TYPE STRING,
LSIND TYPE STRING,
CEPNN TYPE STRING,
FNAM TYPE STRING,
LNMI TYPE STRING,
LOW TYPE STRING,
HIGH TYPE STRING,
OPTION TYPE STRING,
LNG TYPE STRING,
LNGW TYPE STRING,
MASK TYPE STRING,
LNGS TYPE STRING,
OFFS TYPE STRING,
SKTW TYPE STRING,
SPRINT TYPE STRING,
SDIR TYPE STRING,
S12DP TYPE STRING,
SNUM TYPE STRING,
BOPE TYPE STRING,
BPRINT TYPE STRING,
BWRT TYPE STRING,
BDIR TYPE STRING,
B12DP TYPE STRING,
BNUM TYPE STRING,
TEXTKEY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CEBSE_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_CEBSE_STR-SWAHL sy-vline 
WA_CEBSE_STR-GWAHL sy-vline 
WA_CEBSE_STR-LSIND sy-vline 
WA_CEBSE_STR-CEPNN sy-vline 
WA_CEBSE_STR-FNAM sy-vline 
WA_CEBSE_STR-LNMI sy-vline 
WA_CEBSE_STR-LOW sy-vline 
WA_CEBSE_STR-HIGH sy-vline 
WA_CEBSE_STR-OPTION sy-vline 
WA_CEBSE_STR-LNG sy-vline 
WA_CEBSE_STR-LNGW sy-vline 
WA_CEBSE_STR-MASK sy-vline 
WA_CEBSE_STR-LNGS sy-vline 
WA_CEBSE_STR-OFFS sy-vline 
WA_CEBSE_STR-SKTW sy-vline 
WA_CEBSE_STR-SPRINT sy-vline 
WA_CEBSE_STR-SDIR sy-vline 
WA_CEBSE_STR-S12DP sy-vline 
WA_CEBSE_STR-SNUM sy-vline 
WA_CEBSE_STR-BOPE sy-vline 
WA_CEBSE_STR-BPRINT sy-vline 
WA_CEBSE_STR-BWRT sy-vline 
WA_CEBSE_STR-BDIR sy-vline 
WA_CEBSE_STR-B12DP sy-vline 
WA_CEBSE_STR-BNUM sy-vline 
WA_CEBSE_STR-TEXTKEY sy-vline      INTO ld_text SEPARATED BY SPACE.

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