ABAP Select data from SAP table CEPRT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CEPRT
*  INTO TABLE @DATA(IT_CEPRT2).
*--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_CEPRT INDEX 1 INTO DATA(WA_CEPRT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CEPRT>-SWAHL = 1.
<CEPRT>-GWAHL = 1.
<CEPRT>-ZWERT = 1.
<CEPRT>-SPARA = 1.
<CEPRT>-AWAHL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CEPRT-UMNMI, sy-vline,
  WA_CEPRT-ULNMI, sy-vline,
  WA_CEPRT-UUNMI, sy-vline,
  WA_CEPRT-POFFS, sy-vline,
  WA_CEPRT-PLEN, sy-vline,
  WA_CEPRT-PWAERS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CEPRT 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_CEPRT 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_CEPRT INTO WA_CEPRT.


*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_CEPRT_STR, 
SWAHL TYPE STRING,
GWAHL TYPE STRING,
ZWERT TYPE STRING,
SPARA TYPE STRING,
AWAHL TYPE STRING,
UMNMI TYPE STRING,
ULNMI TYPE STRING,
UUNMI TYPE STRING,
POFFS TYPE STRING,
PLEN TYPE STRING,
PWAERS TYPE STRING,
INTENS TYPE STRING,
PDEZ TYPE STRING,
FIXD TYPE STRING,
ROUND TYPE STRING,
FIXR TYPE STRING,
NOZERO TYPE STRING,
VZUK TYPE STRING,
EPS TYPE STRING,
BFELD TYPE STRING,
MWKZ TYPE STRING,
EDEZ TYPE STRING,
EWAERS TYPE STRING,
EMEEHT TYPE STRING,
LOCNR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CEPRT_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_CEPRT_STR-SWAHL sy-vline 
WA_CEPRT_STR-GWAHL sy-vline 
WA_CEPRT_STR-ZWERT sy-vline 
WA_CEPRT_STR-SPARA sy-vline 
WA_CEPRT_STR-AWAHL sy-vline 
WA_CEPRT_STR-UMNMI sy-vline 
WA_CEPRT_STR-ULNMI sy-vline 
WA_CEPRT_STR-UUNMI sy-vline 
WA_CEPRT_STR-POFFS sy-vline 
WA_CEPRT_STR-PLEN sy-vline 
WA_CEPRT_STR-PWAERS sy-vline 
WA_CEPRT_STR-INTENS sy-vline 
WA_CEPRT_STR-PDEZ sy-vline 
WA_CEPRT_STR-FIXD sy-vline 
WA_CEPRT_STR-ROUND sy-vline 
WA_CEPRT_STR-FIXR sy-vline 
WA_CEPRT_STR-NOZERO sy-vline 
WA_CEPRT_STR-VZUK sy-vline 
WA_CEPRT_STR-EPS sy-vline 
WA_CEPRT_STR-BFELD sy-vline 
WA_CEPRT_STR-MWKZ sy-vline 
WA_CEPRT_STR-EDEZ sy-vline 
WA_CEPRT_STR-EWAERS sy-vline 
WA_CEPRT_STR-EMEEHT sy-vline 
WA_CEPRT_STR-LOCNR sy-vline      INTO ld_text SEPARATED BY SPACE.

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