ABAP Select data from SAP table CGRCMLTP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CGRCMLTP
*  INTO TABLE @DATA(IT_CGRCMLTP2).
*--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_CGRCMLTP INDEX 1 INTO DATA(WA_CGRCMLTP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CGRCMLTP>-MANDT = 1.
<CGRCMLTP>-SUPPLIER = 1.
<CGRCMLTP>-COMPANYCODE = 1.
<CGRCMLTP>-NUMBEROFPOSTEDJOURNALENTRIES = 1.
<CGRCMLTP>-LASTPAYMENTDATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CGRCMLTP-SUPPLIERNAME, sy-vline,
  WA_CGRCMLTP-SUPPLIERACCOUNTGROUP, sy-vline,
  WA_CGRCMLTP-REGION, sy-vline,
  WA_CGRCMLTP-COUNTRY, sy-vline,
  WA_CGRCMLTP-CITYNAME, sy-vline,
  WA_CGRCMLTP-STREETNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CGRCMLTP 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_CGRCMLTP 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_CGRCMLTP INTO WA_CGRCMLTP.


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

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

*Conversion exit ALPHA, internal->external for field BUSINESSPARTNERSUPPLIER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CGRCMLTP-BUSINESSPARTNERSUPPLIER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CGRCMLTP-BUSINESSPARTNERSUPPLIER.
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_CGRCMLTP_STR, 
MANDT TYPE STRING,
SUPPLIER TYPE STRING,
COMPANYCODE TYPE STRING,
NUMBEROFPOSTEDJOURNALENTRIES TYPE STRING,
LASTPAYMENTDATE TYPE STRING,
SUPPLIERNAME TYPE STRING,
SUPPLIERACCOUNTGROUP TYPE STRING,
REGION TYPE STRING,
COUNTRY TYPE STRING,
CITYNAME TYPE STRING,
STREETNAME TYPE STRING,
ADDRESSID TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATE TYPE STRING,
ISONETIMEACCOUNT TYPE STRING,
BUSINESSPARTNERSUPPLIER TYPE STRING,
AUTHORIZATIONGROUP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CGRCMLTP_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_CGRCMLTP_STR-MANDT sy-vline 
WA_CGRCMLTP_STR-SUPPLIER sy-vline 
WA_CGRCMLTP_STR-COMPANYCODE sy-vline 
WA_CGRCMLTP_STR-NUMBEROFPOSTEDJOURNALENTRIES sy-vline 
WA_CGRCMLTP_STR-LASTPAYMENTDATE sy-vline 
WA_CGRCMLTP_STR-SUPPLIERNAME sy-vline 
WA_CGRCMLTP_STR-SUPPLIERACCOUNTGROUP sy-vline 
WA_CGRCMLTP_STR-REGION sy-vline 
WA_CGRCMLTP_STR-COUNTRY sy-vline 
WA_CGRCMLTP_STR-CITYNAME sy-vline 
WA_CGRCMLTP_STR-STREETNAME sy-vline 
WA_CGRCMLTP_STR-ADDRESSID sy-vline 
WA_CGRCMLTP_STR-CREATEDBYUSER sy-vline 
WA_CGRCMLTP_STR-CREATIONDATE sy-vline 
WA_CGRCMLTP_STR-ISONETIMEACCOUNT sy-vline 
WA_CGRCMLTP_STR-BUSINESSPARTNERSUPPLIER sy-vline 
WA_CGRCMLTP_STR-AUTHORIZATIONGROUP sy-vline      INTO ld_text SEPARATED BY SPACE.

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