ABAP Select data from SAP table COIOB into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP COIOB 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 COIOB. 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 COIOB 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_COIOB TYPE STANDARD TABLE OF COIOB,
      WA_COIOB TYPE COIOB,
      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: <COIOB> TYPE COIOB.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM COIOB
*  INTO TABLE @DATA(IT_COIOB2).
*--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_COIOB INDEX 1 INTO DATA(WA_COIOB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<COIOB>-OBJNR = 1.
<COIOB>-DATBI = 1.
<COIOB>-OBART = 1.
<COIOB>-SCOPE = 1.
<COIOB>-AUFNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_COIOB-AFPOS, sy-vline,
  WA_COIOB-AUTYP, sy-vline,
  WA_COIOB-KOKRS, sy-vline,
  WA_COIOB-KOSTL, sy-vline,
  WA_COIOB-LSTAR, sy-vline,
  WA_COIOB-KSTRG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_COIOB 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_COIOB 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_COIOB INTO WA_COIOB.


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

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

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

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

*Conversion exit ABPSN, internal->external for field POSID
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_COIOB-POSID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COIOB-POSID.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field SERVICE_DOC_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_COIOB-SERVICE_DOC_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COIOB-SERVICE_DOC_ID.
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_COIOB_STR, 
OBJNR TYPE STRING,
DATBI TYPE STRING,
OBART TYPE STRING,
SCOPE TYPE STRING,
AUFNR TYPE STRING,
AFPOS TYPE STRING,
AUTYP TYPE STRING,
KOKRS TYPE STRING,
KOSTL TYPE STRING,
LSTAR TYPE STRING,
KSTRG TYPE STRING,
PSPNR TYPE STRING,
POSID TYPE STRING,
AUFPL TYPE STRING,
APLZL TYPE STRING,
BUKRS TYPE STRING,
GSBER TYPE STRING,
WERKS TYPE STRING,
OWAER TYPE STRING,
VNAME TYPE STRING,
RECID TYPE STRING,
EGRUP TYPE STRING,
PRCTR TYPE STRING,
ZPSPNR TYPE STRING,
AOTYP TYPE STRING,
VBELN TYPE STRING,
POSNR TYPE STRING,
PRZNR TYPE STRING,
HOART TYPE STRING,
ERKRS TYPE STRING,
PAOBJNR TYPE STRING,
AUART TYPE STRING,
COPAR TYPE STRING,
PLINT TYPE STRING,
XSTAT TYPE STRING,
LOGSYSTEM TYPE STRING,
SWENR TYPE STRING,
SGENR TYPE STRING,
SGRNR TYPE STRING,
SMENR TYPE STRING,
SMIVE TYPE STRING,
SNKSL TYPE STRING,
SEMPSL TYPE STRING,
SVWNR TYPE STRING,
IMKEY TYPE STRING,
DABRZ TYPE STRING,
RSNUM TYPE STRING,
RSPOS TYPE STRING,
RSART TYPE STRING,
RECNNR TYPE STRING,
SERVICE_DOC_TYPE TYPE STRING,
SERVICE_DOC_ID TYPE STRING,
SERVICE_DOC_ITEM_ID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_COIOB_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_COIOB_STR-OBJNR sy-vline 
WA_COIOB_STR-DATBI sy-vline 
WA_COIOB_STR-OBART sy-vline 
WA_COIOB_STR-SCOPE sy-vline 
WA_COIOB_STR-AUFNR sy-vline 
WA_COIOB_STR-AFPOS sy-vline 
WA_COIOB_STR-AUTYP sy-vline 
WA_COIOB_STR-KOKRS sy-vline 
WA_COIOB_STR-KOSTL sy-vline 
WA_COIOB_STR-LSTAR sy-vline 
WA_COIOB_STR-KSTRG sy-vline 
WA_COIOB_STR-PSPNR sy-vline 
WA_COIOB_STR-POSID sy-vline 
WA_COIOB_STR-AUFPL sy-vline 
WA_COIOB_STR-APLZL sy-vline 
WA_COIOB_STR-BUKRS sy-vline 
WA_COIOB_STR-GSBER sy-vline 
WA_COIOB_STR-WERKS sy-vline 
WA_COIOB_STR-OWAER sy-vline 
WA_COIOB_STR-VNAME sy-vline 
WA_COIOB_STR-RECID sy-vline 
WA_COIOB_STR-EGRUP sy-vline 
WA_COIOB_STR-PRCTR sy-vline 
WA_COIOB_STR-ZPSPNR sy-vline 
WA_COIOB_STR-AOTYP sy-vline 
WA_COIOB_STR-VBELN sy-vline 
WA_COIOB_STR-POSNR sy-vline 
WA_COIOB_STR-PRZNR sy-vline 
WA_COIOB_STR-HOART sy-vline 
WA_COIOB_STR-ERKRS sy-vline 
WA_COIOB_STR-PAOBJNR sy-vline 
WA_COIOB_STR-AUART sy-vline 
WA_COIOB_STR-COPAR sy-vline 
WA_COIOB_STR-PLINT sy-vline 
WA_COIOB_STR-XSTAT sy-vline 
WA_COIOB_STR-LOGSYSTEM sy-vline 
WA_COIOB_STR-SWENR sy-vline 
WA_COIOB_STR-SGENR sy-vline 
WA_COIOB_STR-SGRNR sy-vline 
WA_COIOB_STR-SMENR sy-vline 
WA_COIOB_STR-SMIVE sy-vline 
WA_COIOB_STR-SNKSL sy-vline 
WA_COIOB_STR-SEMPSL sy-vline 
WA_COIOB_STR-SVWNR sy-vline 
WA_COIOB_STR-IMKEY sy-vline 
WA_COIOB_STR-DABRZ sy-vline 
WA_COIOB_STR-RSNUM sy-vline 
WA_COIOB_STR-RSPOS sy-vline 
WA_COIOB_STR-RSART sy-vline 
WA_COIOB_STR-RECNNR sy-vline 
WA_COIOB_STR-SERVICE_DOC_TYPE sy-vline 
WA_COIOB_STR-SERVICE_DOC_ID sy-vline 
WA_COIOB_STR-SERVICE_DOC_ITEM_ID sy-vline      INTO ld_text SEPARATED BY SPACE.

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