ABAP Select data from SAP table CHINFO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CHINFO
*  INTO TABLE @DATA(IT_CHINFO2).
*--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_CHINFO INDEX 1 INTO DATA(WA_CHINFO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CHINFO>-MANDT = 1.
<CHINFO>-SSOUR = 1.
<CHINFO>-VRSIO = 1.
<CHINFO>-SPMON = 1.
<CHINFO>-SPTAG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CHINFO-SPWOC, sy-vline,
  WA_CHINFO-SPBUP, sy-vline,
  WA_CHINFO-WERKS, sy-vline,
  WA_CHINFO-CHKONTONR, sy-vline,
  WA_CHINFO-MATNR, sy-vline,
  WA_CHINFO-BUDAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CHINFO 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_CHINFO 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_CHINFO INTO WA_CHINFO.


*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 PERI, internal->external for field SPMON
CALL FUNCTION 'CONVERSION_EXIT_PERI_OUTPUT'
  EXPORTING
    input =                      WA_CHINFO-SPMON
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CHINFO-SPMON.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PERI, internal->external for field SPWOC
CALL FUNCTION 'CONVERSION_EXIT_PERI_OUTPUT'
  EXPORTING
    input =                      WA_CHINFO-SPWOC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CHINFO-SPWOC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PERI, internal->external for field SPBUP
CALL FUNCTION 'CONVERSION_EXIT_PERI_OUTPUT'
  EXPORTING
    input =                      WA_CHINFO-SPBUP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CHINFO-SPBUP.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CHINFO-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CHINFO-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field BASME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CHINFO-BASME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CHINFO-BASME.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit GJAHR, internal->external for field CHJAHRGANG
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_CHINFO-CHJAHRGANG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CHINFO-CHJAHRGANG.
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_CHINFO_STR, 
MANDT TYPE STRING,
SSOUR TYPE STRING,
VRSIO TYPE STRING,
SPMON TYPE STRING,
SPTAG TYPE STRING,
SPWOC TYPE STRING,
SPBUP TYPE STRING,
WERKS TYPE STRING,
CHKONTONR TYPE STRING,
MATNR TYPE STRING,
BUDAT TYPE STRING,
CHKZINVENT TYPE STRING,
BWART TYPE STRING,
MBLNR TYPE STRING,
MEINS TYPE STRING,
PERIV TYPE STRING,
VWDAT TYPE STRING,
BASME TYPE STRING,
CHZUMENGE TYPE STRING,
CHABMENGE TYPE STRING,
CHLIFNR TYPE STRING,
CHKUNNR TYPE STRING,
CHEMPFMAT TYPE STRING,
CHSCHNITTM TYPE STRING,
CHJAHRGANG TYPE STRING,
CHLAND TYPE STRING,
CHALKOHOL TYPE STRING,
CHKZUMSATZ TYPE STRING,
CHMENGEDL TYPE STRING,
CHABALC TYPE STRING,
CHZUALC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CHINFO_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_CHINFO_STR-MANDT sy-vline 
WA_CHINFO_STR-SSOUR sy-vline 
WA_CHINFO_STR-VRSIO sy-vline 
WA_CHINFO_STR-SPMON sy-vline 
WA_CHINFO_STR-SPTAG sy-vline 
WA_CHINFO_STR-SPWOC sy-vline 
WA_CHINFO_STR-SPBUP sy-vline 
WA_CHINFO_STR-WERKS sy-vline 
WA_CHINFO_STR-CHKONTONR sy-vline 
WA_CHINFO_STR-MATNR sy-vline 
WA_CHINFO_STR-BUDAT sy-vline 
WA_CHINFO_STR-CHKZINVENT sy-vline 
WA_CHINFO_STR-BWART sy-vline 
WA_CHINFO_STR-MBLNR sy-vline 
WA_CHINFO_STR-MEINS sy-vline 
WA_CHINFO_STR-PERIV sy-vline 
WA_CHINFO_STR-VWDAT sy-vline 
WA_CHINFO_STR-BASME sy-vline 
WA_CHINFO_STR-CHZUMENGE sy-vline 
WA_CHINFO_STR-CHABMENGE sy-vline 
WA_CHINFO_STR-CHLIFNR sy-vline 
WA_CHINFO_STR-CHKUNNR sy-vline 
WA_CHINFO_STR-CHEMPFMAT sy-vline 
WA_CHINFO_STR-CHSCHNITTM sy-vline 
WA_CHINFO_STR-CHJAHRGANG sy-vline 
WA_CHINFO_STR-CHLAND sy-vline 
WA_CHINFO_STR-CHALKOHOL sy-vline 
WA_CHINFO_STR-CHKZUMSATZ sy-vline 
WA_CHINFO_STR-CHMENGEDL sy-vline 
WA_CHINFO_STR-CHABALC sy-vline 
WA_CHINFO_STR-CHZUALC sy-vline      INTO ld_text SEPARATED BY SPACE.

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