ABAP Select data from SAP table CEZP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CEZP
*  INTO TABLE @DATA(IT_CEZP2).
*--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_CEZP INDEX 1 INTO DATA(WA_CEZP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CEZP>-MANDT = 1.
<CEZP>-BELNR = 1.
<CEZP>-BUZEI = 1.
<CEZP>-GJAHR = 1.
<CEZP>-PERIO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CEZP-OBJNR, sy-vline,
  WA_CEZP-F_OBJNR, sy-vline,
  WA_CEZP-PLNKN, sy-vline,
  WA_CEZP-ZAEHL, sy-vline,
  WA_CEZP-VORNE, sy-vline,
  WA_CEZP-PLNFL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CEZP 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_CEZP 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_CEZP INTO WA_CEZP.


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

*Conversion exit NUMCV, internal->external for field VORNE
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_CEZP-VORNE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CEZP-VORNE.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit ALPHA, internal->external for field ST_REFBN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CEZP-ST_REFBN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CEZP-ST_REFBN.
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_CEZP_STR, 
MANDT TYPE STRING,
BELNR TYPE STRING,
BUZEI TYPE STRING,
GJAHR TYPE STRING,
PERIO TYPE STRING,
OBJNR TYPE STRING,
F_OBJNR TYPE STRING,
PLNKN TYPE STRING,
ZAEHL TYPE STRING,
VORNE TYPE STRING,
PLNFL TYPE STRING,
VRGNG TYPE STRING,
MEINH TYPE STRING,
UMREZ TYPE STRING,
UMREN TYPE STRING,
PLNME TYPE STRING,
LMVRG TYPE STRING,
XMVRG TYPE STRING,
WERKS TYPE STRING,
AGRND TYPE STRING,
SCOBJ TYPE STRING,
BLDAT TYPE STRING,
BUDAT TYPE STRING,
CPUDT TYPE STRING,
CPUTM TYPE STRING,
USNAM TYPE STRING,
STFLG TYPE STRING,
STOKZ TYPE STRING,
NOSTO TYPE STRING,
REFBN TYPE STRING,
REFBT TYPE STRING,
ST_REFBN TYPE STRING,
REWQTY TYPE STRING,
WMVRG TYPE STRING,
VARMN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CEZP_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_CEZP_STR-MANDT sy-vline 
WA_CEZP_STR-BELNR sy-vline 
WA_CEZP_STR-BUZEI sy-vline 
WA_CEZP_STR-GJAHR sy-vline 
WA_CEZP_STR-PERIO sy-vline 
WA_CEZP_STR-OBJNR sy-vline 
WA_CEZP_STR-F_OBJNR sy-vline 
WA_CEZP_STR-PLNKN sy-vline 
WA_CEZP_STR-ZAEHL sy-vline 
WA_CEZP_STR-VORNE sy-vline 
WA_CEZP_STR-PLNFL sy-vline 
WA_CEZP_STR-VRGNG sy-vline 
WA_CEZP_STR-MEINH sy-vline 
WA_CEZP_STR-UMREZ sy-vline 
WA_CEZP_STR-UMREN sy-vline 
WA_CEZP_STR-PLNME sy-vline 
WA_CEZP_STR-LMVRG sy-vline 
WA_CEZP_STR-XMVRG sy-vline 
WA_CEZP_STR-WERKS sy-vline 
WA_CEZP_STR-AGRND sy-vline 
WA_CEZP_STR-SCOBJ sy-vline 
WA_CEZP_STR-BLDAT sy-vline 
WA_CEZP_STR-BUDAT sy-vline 
WA_CEZP_STR-CPUDT sy-vline 
WA_CEZP_STR-CPUTM sy-vline 
WA_CEZP_STR-USNAM sy-vline 
WA_CEZP_STR-STFLG sy-vline 
WA_CEZP_STR-STOKZ sy-vline 
WA_CEZP_STR-NOSTO sy-vline 
WA_CEZP_STR-REFBN sy-vline 
WA_CEZP_STR-REFBT sy-vline 
WA_CEZP_STR-ST_REFBN sy-vline 
WA_CEZP_STR-REWQTY sy-vline 
WA_CEZP_STR-WMVRG sy-vline 
WA_CEZP_STR-VARMN sy-vline      INTO ld_text SEPARATED BY SPACE.

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