ABAP Select data from SAP table E3COBK into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP E3COBK 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 E3COBK. 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 E3COBK 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_E3COBK TYPE STANDARD TABLE OF E3COBK,
      WA_E3COBK TYPE E3COBK,
      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: <E3COBK> TYPE E3COBK.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_E3COBK.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM E3COBK
  INTO TABLE IT_E3COBK.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM E3COBK
*  INTO TABLE @DATA(IT_E3COBK2).
*--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_E3COBK INDEX 1 INTO DATA(WA_E3COBK2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_E3COBK ASSIGNING <E3COBK>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<E3COBK>-KOKRS = 1.
<E3COBK>-BELNR = 1.
<E3COBK>-GJAHR = 1.
<E3COBK>-PERAB = 1.
<E3COBK>-PERBI = 1.

ENDLOOP.

LOOP AT IT_E3COBK INTO WA_E3COBK.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_E3COBK-VERSN, sy-vline,
  WA_E3COBK-VRGNG, sy-vline,
  WA_E3COBK-BLDAT, sy-vline,
  WA_E3COBK-BUDAT, sy-vline,
  WA_E3COBK-CPUDT, sy-vline,
  WA_E3COBK-USNAM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_E3COBK 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_E3COBK 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_E3COBK INTO WA_E3COBK.


*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 BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E3COBK-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3COBK-BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_E3COBK-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3COBK-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VERSN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E3COBK-VERSN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3COBK-VERSN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field REFBN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E3COBK-REFBN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3COBK-REFBN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field REFGJ
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_E3COBK-REFGJ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3COBK-REFGJ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LOGSYSTEM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E3COBK-LOGSYSTEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3COBK-LOGSYSTEM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AWSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E3COBK-AWSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3COBK-AWSYS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AWREF_REV
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E3COBK-AWREF_REV
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E3COBK-AWREF_REV.
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_E3COBK_STR, 
KOKRS TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
PERAB TYPE STRING,
PERBI TYPE STRING,
VERSN TYPE STRING,
VRGNG TYPE STRING,
BLDAT TYPE STRING,
BUDAT TYPE STRING,
CPUDT TYPE STRING,
USNAM TYPE STRING,
BLTXT TYPE STRING,
STFLG TYPE STRING,
STOKZ TYPE STRING,
REFBT TYPE STRING,
REFBN TYPE STRING,
REFBK TYPE STRING,
REFGJ TYPE STRING,
BLART TYPE STRING,
ORGVG TYPE STRING,
SUMBZ TYPE STRING,
DELBZ TYPE STRING,
WSDAT TYPE STRING,
KURST TYPE STRING,
VARNR TYPE STRING,
KWAER TYPE STRING,
CTYP1 TYPE STRING,
CTYP2 TYPE STRING,
CTYP3 TYPE STRING,
CTYP4 TYPE STRING,
AWTYP TYPE STRING,
AWORG TYPE STRING,
LOGSYSTEM TYPE STRING,
CPUTM TYPE STRING,
AWSYS TYPE STRING,
AWREF_REV TYPE STRING,
AWORG_REV TYPE STRING,END OF T_EKKO_STR.
DATA: WA_E3COBK_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_E3COBK_STR-KOKRS sy-vline 
WA_E3COBK_STR-BELNR sy-vline 
WA_E3COBK_STR-GJAHR sy-vline 
WA_E3COBK_STR-PERAB sy-vline 
WA_E3COBK_STR-PERBI sy-vline 
WA_E3COBK_STR-VERSN sy-vline 
WA_E3COBK_STR-VRGNG sy-vline 
WA_E3COBK_STR-BLDAT sy-vline 
WA_E3COBK_STR-BUDAT sy-vline 
WA_E3COBK_STR-CPUDT sy-vline 
WA_E3COBK_STR-USNAM sy-vline 
WA_E3COBK_STR-BLTXT sy-vline 
WA_E3COBK_STR-STFLG sy-vline 
WA_E3COBK_STR-STOKZ sy-vline 
WA_E3COBK_STR-REFBT sy-vline 
WA_E3COBK_STR-REFBN sy-vline 
WA_E3COBK_STR-REFBK sy-vline 
WA_E3COBK_STR-REFGJ sy-vline 
WA_E3COBK_STR-BLART sy-vline 
WA_E3COBK_STR-ORGVG sy-vline 
WA_E3COBK_STR-SUMBZ sy-vline 
WA_E3COBK_STR-DELBZ sy-vline 
WA_E3COBK_STR-WSDAT sy-vline 
WA_E3COBK_STR-KURST sy-vline 
WA_E3COBK_STR-VARNR sy-vline 
WA_E3COBK_STR-KWAER sy-vline 
WA_E3COBK_STR-CTYP1 sy-vline 
WA_E3COBK_STR-CTYP2 sy-vline 
WA_E3COBK_STR-CTYP3 sy-vline 
WA_E3COBK_STR-CTYP4 sy-vline 
WA_E3COBK_STR-AWTYP sy-vline 
WA_E3COBK_STR-AWORG sy-vline 
WA_E3COBK_STR-LOGSYSTEM sy-vline 
WA_E3COBK_STR-CPUTM sy-vline 
WA_E3COBK_STR-AWSYS sy-vline 
WA_E3COBK_STR-AWREF_REV sy-vline 
WA_E3COBK_STR-AWORG_REV sy-vline      INTO ld_text SEPARATED BY SPACE.

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