ABAP Select data from SAP table CEST2 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CEST2 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 CEST2. 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 CEST2 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_CEST2 TYPE STANDARD TABLE OF CEST2,
      WA_CEST2 TYPE CEST2,
      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: <CEST2> TYPE CEST2.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CEST2.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CEST2
  INTO TABLE IT_CEST2.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CEST2
*  INTO TABLE @DATA(IT_CEST22).
*--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_CEST2 INDEX 1 INTO DATA(WA_CEST22).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CEST2 ASSIGNING <CEST2>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CEST2>-MANDT = 1.
<CEST2>-PALEDGER = 1.
<CEST2>-VRGAR = 1.
<CEST2>-VERSI = 1.
<CEST2>-PAOBJNR = 1.

ENDLOOP.

LOOP AT IT_CEST2 INTO WA_CEST2.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CEST2-PASUBNR, sy-vline,
  WA_CEST2-BELNR, sy-vline,
  WA_CEST2-PERBL, sy-vline,
  WA_CEST2-HZDAT, sy-vline,
  WA_CEST2-USNAM, sy-vline,
  WA_CEST2-GJAHR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CEST2 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_CEST2 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_CEST2 INTO WA_CEST2.


*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 LEDBO, internal->external for field PALEDGER
CALL FUNCTION 'CONVERSION_EXIT_LEDBO_OUTPUT'
  EXPORTING
    input =                      WA_CEST2-PALEDGER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CEST2-PALEDGER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VERSI
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CEST2-VERSI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CEST2-VERSI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CEST2-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CEST2-BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PERI7, internal->external for field PERBL
CALL FUNCTION 'CONVERSION_EXIT_PERI7_OUTPUT'
  EXPORTING
    input =                      WA_CEST2-PERBL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CEST2-PERBL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_CEST2-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CEST2-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KNDNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CEST2-KNDNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CEST2-KNDNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field ARTNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_CEST2-ARTNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CEST2-ARTNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KAUFN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CEST2-KAUFN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CEST2-KAUFN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RKAUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CEST2-RKAUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CEST2-RKAUFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SKOST
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CEST2-SKOST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CEST2-SKOST.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PRZNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CEST2-PRZNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CEST2-PRZNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SEGMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CEST2-SEGMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CEST2-SEGMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KSTAR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CEST2-KSTAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CEST2-KSTAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSP, internal->external for field PSPNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_CEST2-PSPNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CEST2-PSPNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field COPA_KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CEST2-COPA_KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CEST2-COPA_KOSTL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CEST2-RBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CEST2-RBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PRCTR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CEST2-PRCTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CEST2-PRCTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PPRCTR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CEST2-PPRCTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CEST2-PPRCTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SERVICE_DOC_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CEST2-SERVICE_DOC_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CEST2-SERVICE_DOC_ID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SOLUTION_ORDER_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CEST2-SOLUTION_ORDER_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CEST2-SOLUTION_ORDER_ID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VTKEY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CEST2-VTKEY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CEST2-VTKEY.
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_CEST2_STR, 
MANDT TYPE STRING,
PALEDGER TYPE STRING,
VRGAR TYPE STRING,
VERSI TYPE STRING,
PAOBJNR TYPE STRING,
PASUBNR TYPE STRING,
BELNR TYPE STRING,
PERBL TYPE STRING,
HZDAT TYPE STRING,
USNAM TYPE STRING,
GJAHR TYPE STRING,
PAPAOBJNR TYPE STRING,
PAPASUBNR TYPE STRING,
KNDNR TYPE STRING,
ARTNR TYPE STRING,
FKART TYPE STRING,
FRWAE TYPE STRING,
REC_WAERS TYPE STRING,
KAUFN TYPE STRING,
KDPOS TYPE STRING,
RKAUFNR TYPE STRING,
SKOST TYPE STRING,
PRZNR TYPE STRING,
BUKRS TYPE STRING,
KOKRS TYPE STRING,
WERKS TYPE STRING,
GSBER TYPE STRING,
FKBER TYPE STRING,
SEGMENT TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
HRKFT TYPE STRING,
KSTAR TYPE STRING,
PSPNR TYPE STRING,
COPA_KOSTL TYPE STRING,
KSTRG TYPE STRING,
RBELN TYPE STRING,
RPOSN TYPE STRING,
PRCTR TYPE STRING,
PPRCTR TYPE STRING,
RKESTATU TYPE STRING,
TIMESTMP TYPE STRING,
SERVICE_DOC_TYPE TYPE STRING,
SERVICE_DOC_ID TYPE STRING,
SERVICE_DOC_ITEM_ID TYPE STRING,
SOLUTION_ORDER_ID TYPE STRING,
SOLUTION_ORDER_ITEM_ID TYPE STRING,
VTKEY TYPE STRING,
VTPOS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CEST2_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_CEST2_STR-MANDT sy-vline 
WA_CEST2_STR-PALEDGER sy-vline 
WA_CEST2_STR-VRGAR sy-vline 
WA_CEST2_STR-VERSI sy-vline 
WA_CEST2_STR-PAOBJNR sy-vline 
WA_CEST2_STR-PASUBNR sy-vline 
WA_CEST2_STR-BELNR sy-vline 
WA_CEST2_STR-PERBL sy-vline 
WA_CEST2_STR-HZDAT sy-vline 
WA_CEST2_STR-USNAM sy-vline 
WA_CEST2_STR-GJAHR sy-vline 
WA_CEST2_STR-PAPAOBJNR sy-vline 
WA_CEST2_STR-PAPASUBNR sy-vline 
WA_CEST2_STR-KNDNR sy-vline 
WA_CEST2_STR-ARTNR sy-vline 
WA_CEST2_STR-FKART sy-vline 
WA_CEST2_STR-FRWAE sy-vline 
WA_CEST2_STR-REC_WAERS sy-vline 
WA_CEST2_STR-KAUFN sy-vline 
WA_CEST2_STR-KDPOS sy-vline 
WA_CEST2_STR-RKAUFNR sy-vline 
WA_CEST2_STR-SKOST sy-vline 
WA_CEST2_STR-PRZNR sy-vline 
WA_CEST2_STR-BUKRS sy-vline 
WA_CEST2_STR-KOKRS sy-vline 
WA_CEST2_STR-WERKS sy-vline 
WA_CEST2_STR-GSBER sy-vline 
WA_CEST2_STR-FKBER sy-vline 
WA_CEST2_STR-SEGMENT sy-vline 
WA_CEST2_STR-VKORG sy-vline 
WA_CEST2_STR-VTWEG sy-vline 
WA_CEST2_STR-SPART sy-vline 
WA_CEST2_STR-HRKFT sy-vline 
WA_CEST2_STR-KSTAR sy-vline 
WA_CEST2_STR-PSPNR sy-vline 
WA_CEST2_STR-COPA_KOSTL sy-vline 
WA_CEST2_STR-KSTRG sy-vline 
WA_CEST2_STR-RBELN sy-vline 
WA_CEST2_STR-RPOSN sy-vline 
WA_CEST2_STR-PRCTR sy-vline 
WA_CEST2_STR-PPRCTR sy-vline 
WA_CEST2_STR-RKESTATU sy-vline 
WA_CEST2_STR-TIMESTMP sy-vline 
WA_CEST2_STR-SERVICE_DOC_TYPE sy-vline 
WA_CEST2_STR-SERVICE_DOC_ID sy-vline 
WA_CEST2_STR-SERVICE_DOC_ITEM_ID sy-vline 
WA_CEST2_STR-SOLUTION_ORDER_ID sy-vline 
WA_CEST2_STR-SOLUTION_ORDER_ITEM_ID sy-vline 
WA_CEST2_STR-VTKEY sy-vline 
WA_CEST2_STR-VTPOS sy-vline      INTO ld_text SEPARATED BY SPACE.

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