ABAP Select data from SAP table CEPL4 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CEPL4 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 CEPL4. 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 CEPL4 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_CEPL4 TYPE STANDARD TABLE OF CEPL4,
      WA_CEPL4 TYPE CEPL4,
      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: <CEPL4> TYPE CEPL4.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CEPL4.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CEPL4
  INTO TABLE IT_CEPL4.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CEPL4
*  INTO TABLE @DATA(IT_CEPL42).
*--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_CEPL4 INDEX 1 INTO DATA(WA_CEPL42).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CEPL4 ASSIGNING <CEPL4>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CEPL4>-ACTION = 1.
<CEPL4>-ANREICH = 1.
<CEPL4>-BEWERT = 1.
<CEPL4>-REVAL = 1.
<CEPL4>-VTL = 1.

ENDLOOP.

LOOP AT IT_CEPL4 INTO WA_CEPL4.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CEPL4-TEST, sy-vline,
  WA_CEPL4-PLADAT, sy-vline,
  WA_CEPL4-ISTDAT, sy-vline,
  WA_CEPL4-UEBERN, sy-vline,
  WA_CEPL4-ADDIER, sy-vline,
  WA_CEPL4-SUBTRA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CEPL4 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_CEPL4 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_CEPL4 INTO WA_CEPL4.


*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 ALPHA, internal->external for field REVAL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CEPL4-REVAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CEPL4-REVAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VERSI
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CEPL4-VERSI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CEPL4-VERSI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field REVERSI
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CEPL4-REVERSI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CEPL4-REVERSI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PERI7, internal->external for field VPERIO
CALL FUNCTION 'CONVERSION_EXIT_PERI7_OUTPUT'
  EXPORTING
    input =                      WA_CEPL4-VPERIO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CEPL4-VPERIO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PERI7, internal->external for field BPERIO
CALL FUNCTION 'CONVERSION_EXIT_PERI7_OUTPUT'
  EXPORTING
    input =                      WA_CEPL4-BPERIO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CEPL4-BPERIO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PERI7, internal->external for field REVPERIO
CALL FUNCTION 'CONVERSION_EXIT_PERI7_OUTPUT'
  EXPORTING
    input =                      WA_CEPL4-REVPERIO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CEPL4-REVPERIO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PERI7, internal->external for field REBPERIO
CALL FUNCTION 'CONVERSION_EXIT_PERI7_OUTPUT'
  EXPORTING
    input =                      WA_CEPL4-REBPERIO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CEPL4-REBPERIO.
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_CEPL4_STR, 
ACTION TYPE STRING,
ANREICH TYPE STRING,
BEWERT TYPE STRING,
REVAL TYPE STRING,
VTL TYPE STRING,
TEST TYPE STRING,
PLADAT TYPE STRING,
ISTDAT TYPE STRING,
UEBERN TYPE STRING,
ADDIER TYPE STRING,
SUBTRA TYPE STRING,
DETPRO TYPE STRING,
ANKREUZ1 TYPE STRING,
SCRTEXT_M1 TYPE STRING,
ANKREUZ2 TYPE STRING,
SCRTEXT_M2 TYPE STRING,
ANKREUZ3 TYPE STRING,
SCRTEXT_M3 TYPE STRING,
PRHELL TYPE STRING,
PRDUNK TYPE STRING,
PRPFL TYPE STRING,
PFITX TYPE STRING,
VRSIO TYPE STRING,
VETXT TYPE STRING,
AENDUE TYPE STRING,
MNGTXT TYPE STRING,
ARTTXT TYPE STRING,
BATCH TYPE STRING,
NVDEL TYPE STRING,
NVKEEP TYPE STRING,
NVSCAL TYPE STRING,
DATUM TYPE STRING,
UZEIT TYPE STRING,
FKTUS TYPE STRING,
WKOTXT TYPE STRING,
PERKUM TYPE STRING,
VRGKUM TYPE STRING,
VRGAR TYPE STRING,
REVRGAR TYPE STRING,
VRGARTXT TYPE STRING,
REVRGARTXT TYPE STRING,
RAHMEN1 TYPE STRING,
RAHMEN2 TYPE STRING,
PA_TYPE TYPE STRING,
VERSI TYPE STRING,
REVERSI TYPE STRING,
VPERIO TYPE STRING,
BPERIO TYPE STRING,
REVPERIO TYPE STRING,
REBPERIO TYPE STRING,
REPLIKZ TYPE STRING,
PERFLAG TYPE STRING,
PERIV TYPE STRING,
RASTER TYPE STRING,
ARTFNAM TYPE STRING,
MNGFNAM TYPE STRING,
WKOFNAM TYPE STRING,
RETRCATNR TYPE STRING,
TRCATNR TYPE STRING,
WOCHEN TYPE STRING,
FILENM TYPE STRING,
TD_ERR TYPE STRING,
PSL_SET TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CEPL4_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_CEPL4_STR-ACTION sy-vline 
WA_CEPL4_STR-ANREICH sy-vline 
WA_CEPL4_STR-BEWERT sy-vline 
WA_CEPL4_STR-REVAL sy-vline 
WA_CEPL4_STR-VTL sy-vline 
WA_CEPL4_STR-TEST sy-vline 
WA_CEPL4_STR-PLADAT sy-vline 
WA_CEPL4_STR-ISTDAT sy-vline 
WA_CEPL4_STR-UEBERN sy-vline 
WA_CEPL4_STR-ADDIER sy-vline 
WA_CEPL4_STR-SUBTRA sy-vline 
WA_CEPL4_STR-DETPRO sy-vline 
WA_CEPL4_STR-ANKREUZ1 sy-vline 
WA_CEPL4_STR-SCRTEXT_M1 sy-vline 
WA_CEPL4_STR-ANKREUZ2 sy-vline 
WA_CEPL4_STR-SCRTEXT_M2 sy-vline 
WA_CEPL4_STR-ANKREUZ3 sy-vline 
WA_CEPL4_STR-SCRTEXT_M3 sy-vline 
WA_CEPL4_STR-PRHELL sy-vline 
WA_CEPL4_STR-PRDUNK sy-vline 
WA_CEPL4_STR-PRPFL sy-vline 
WA_CEPL4_STR-PFITX sy-vline 
WA_CEPL4_STR-VRSIO sy-vline 
WA_CEPL4_STR-VETXT sy-vline 
WA_CEPL4_STR-AENDUE sy-vline 
WA_CEPL4_STR-MNGTXT sy-vline 
WA_CEPL4_STR-ARTTXT sy-vline 
WA_CEPL4_STR-BATCH sy-vline 
WA_CEPL4_STR-NVDEL sy-vline 
WA_CEPL4_STR-NVKEEP sy-vline 
WA_CEPL4_STR-NVSCAL sy-vline 
WA_CEPL4_STR-DATUM sy-vline 
WA_CEPL4_STR-UZEIT sy-vline 
WA_CEPL4_STR-FKTUS sy-vline 
WA_CEPL4_STR-WKOTXT sy-vline 
WA_CEPL4_STR-PERKUM sy-vline 
WA_CEPL4_STR-VRGKUM sy-vline 
WA_CEPL4_STR-VRGAR sy-vline 
WA_CEPL4_STR-REVRGAR sy-vline 
WA_CEPL4_STR-VRGARTXT sy-vline 
WA_CEPL4_STR-REVRGARTXT sy-vline 
WA_CEPL4_STR-RAHMEN1 sy-vline 
WA_CEPL4_STR-RAHMEN2 sy-vline 
WA_CEPL4_STR-PA_TYPE sy-vline 
WA_CEPL4_STR-VERSI sy-vline 
WA_CEPL4_STR-REVERSI sy-vline 
WA_CEPL4_STR-VPERIO sy-vline 
WA_CEPL4_STR-BPERIO sy-vline 
WA_CEPL4_STR-REVPERIO sy-vline 
WA_CEPL4_STR-REBPERIO sy-vline 
WA_CEPL4_STR-REPLIKZ sy-vline 
WA_CEPL4_STR-PERFLAG sy-vline 
WA_CEPL4_STR-PERIV sy-vline 
WA_CEPL4_STR-RASTER sy-vline 
WA_CEPL4_STR-ARTFNAM sy-vline 
WA_CEPL4_STR-MNGFNAM sy-vline 
WA_CEPL4_STR-WKOFNAM sy-vline 
WA_CEPL4_STR-RETRCATNR sy-vline 
WA_CEPL4_STR-TRCATNR sy-vline 
WA_CEPL4_STR-WOCHEN sy-vline 
WA_CEPL4_STR-FILENM sy-vline 
WA_CEPL4_STR-TD_ERR sy-vline 
WA_CEPL4_STR-PSL_SET sy-vline      INTO ld_text SEPARATED BY SPACE.

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