ABAP Select data from SAP table CEST1FIX into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CEST1FIX 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 CEST1FIX. 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 CEST1FIX 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_CEST1FIX TYPE STANDARD TABLE OF CEST1FIX,
      WA_CEST1FIX TYPE CEST1FIX,
      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: <CEST1FIX> TYPE CEST1FIX.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CEST1FIX.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CEST1FIX
  INTO TABLE IT_CEST1FIX.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CEST1FIX
*  INTO TABLE @DATA(IT_CEST1FIX2).
*--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_CEST1FIX INDEX 1 INTO DATA(WA_CEST1FIX2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CEST1FIX ASSIGNING <CEST1FIX>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CEST1FIX>-MANDT = 1.
<CEST1FIX>-PALEDGER = 1.
<CEST1FIX>-VRGAR = 1.
<CEST1FIX>-VERSI = 1.
<CEST1FIX>-PERIO = 1.

ENDLOOP.

LOOP AT IT_CEST1FIX INTO WA_CEST1FIX.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CEST1FIX-PAOBJNR, sy-vline,
  WA_CEST1FIX-PASUBNR, sy-vline,
  WA_CEST1FIX-BELNR, sy-vline,
  WA_CEST1FIX-POSNR, sy-vline,
  WA_CEST1FIX-HZDAT, sy-vline,
  WA_CEST1FIX-USNAM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CEST1FIX 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_CEST1FIX 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_CEST1FIX INTO WA_CEST1FIX.


*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_CEST1FIX-PALEDGER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CEST1FIX-PALEDGER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VERSI
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CEST1FIX-VERSI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CEST1FIX-VERSI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PERI7, internal->external for field PERIO
CALL FUNCTION 'CONVERSION_EXIT_PERI7_OUTPUT'
  EXPORTING
    input =                      WA_CEST1FIX-PERIO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CEST1FIX-PERIO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CEST1FIX-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CEST1FIX-BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_CEST1FIX-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CEST1FIX-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PERI7, internal->external for field ALTPERIO
CALL FUNCTION 'CONVERSION_EXIT_PERI7_OUTPUT'
  EXPORTING
    input =                      WA_CEST1FIX-ALTPERIO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CEST1FIX-ALTPERIO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field KURSF
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_CEST1FIX-KURSF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CEST1FIX-KURSF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field KURSBK
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_CEST1FIX-KURSBK
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CEST1FIX-KURSBK.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field KURSKZ
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_CEST1FIX-KURSKZ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CEST1FIX-KURSKZ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CEST1FIX-RBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CEST1FIX-RBELN.
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_CEST1FIX_STR, 
MANDT TYPE STRING,
PALEDGER TYPE STRING,
VRGAR TYPE STRING,
VERSI TYPE STRING,
PERIO TYPE STRING,
PAOBJNR TYPE STRING,
PASUBNR TYPE STRING,
BELNR TYPE STRING,
POSNR TYPE STRING,
HZDAT TYPE STRING,
USNAM TYPE STRING,
GJAHR TYPE STRING,
PERDE TYPE STRING,
BUDAT TYPE STRING,
ALTPERIO TYPE STRING,
PAPAOBJNR TYPE STRING,
PAPASUBNR TYPE STRING,
FRWAE TYPE STRING,
KURSF TYPE STRING,
KURSBK TYPE STRING,
KURSKZ TYPE STRING,
PLIKZ TYPE STRING,
RBELN TYPE STRING,
RPOSN TYPE STRING,
TIMESTMP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CEST1FIX_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_CEST1FIX_STR-MANDT sy-vline 
WA_CEST1FIX_STR-PALEDGER sy-vline 
WA_CEST1FIX_STR-VRGAR sy-vline 
WA_CEST1FIX_STR-VERSI sy-vline 
WA_CEST1FIX_STR-PERIO sy-vline 
WA_CEST1FIX_STR-PAOBJNR sy-vline 
WA_CEST1FIX_STR-PASUBNR sy-vline 
WA_CEST1FIX_STR-BELNR sy-vline 
WA_CEST1FIX_STR-POSNR sy-vline 
WA_CEST1FIX_STR-HZDAT sy-vline 
WA_CEST1FIX_STR-USNAM sy-vline 
WA_CEST1FIX_STR-GJAHR sy-vline 
WA_CEST1FIX_STR-PERDE sy-vline 
WA_CEST1FIX_STR-BUDAT sy-vline 
WA_CEST1FIX_STR-ALTPERIO sy-vline 
WA_CEST1FIX_STR-PAPAOBJNR sy-vline 
WA_CEST1FIX_STR-PAPASUBNR sy-vline 
WA_CEST1FIX_STR-FRWAE sy-vline 
WA_CEST1FIX_STR-KURSF sy-vline 
WA_CEST1FIX_STR-KURSBK sy-vline 
WA_CEST1FIX_STR-KURSKZ sy-vline 
WA_CEST1FIX_STR-PLIKZ sy-vline 
WA_CEST1FIX_STR-RBELN sy-vline 
WA_CEST1FIX_STR-RPOSN sy-vline 
WA_CEST1FIX_STR-TIMESTMP sy-vline      INTO ld_text SEPARATED BY SPACE.

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