ABAP Select data from SAP table CGRCUSRCRESUPPUR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CGRCUSRCRESUPPUR
*  INTO TABLE @DATA(IT_CGRCUSRCRESUPPUR2).
*--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_CGRCUSRCRESUPPUR INDEX 1 INTO DATA(WA_CGRCUSRCRESUPPUR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CGRCUSRCRESUPPUR>-MANDT = 1.
<CGRCUSRCRESUPPUR>-PURCHASINGDOCUMENT = 1.
<CGRCUSRCRESUPPUR>-PURCHASINGDOCUMENTCATEGORY = 1.
<CGRCUSRCRESUPPUR>-PURCHASINGDOCUMENTTYPE = 1.
<CGRCUSRCRESUPPUR>-COMPANYCODE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CGRCUSRCRESUPPUR-COMPANYCODENAME, sy-vline,
  WA_CGRCUSRCRESUPPUR-PURCHASINGORGANIZATION, sy-vline,
  WA_CGRCUSRCRESUPPUR-SUPPLIER, sy-vline,
  WA_CGRCUSRCRESUPPUR-SUPPLIERNAME, sy-vline,
  WA_CGRCUSRCRESUPPUR-CREATIONDATE, sy-vline,
  WA_CGRCUSRCRESUPPUR-CREATEDBYUSER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CGRCUSRCRESUPPUR 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_CGRCUSRCRESUPPUR 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_CGRCUSRCRESUPPUR INTO WA_CGRCUSRCRESUPPUR.


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

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

*Conversion exit ALPHA, internal->external for field PURCHASINGPARENTDOCUMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CGRCUSRCRESUPPUR-PURCHASINGPARENTDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CGRCUSRCRESUPPUR-PURCHASINGPARENTDOCUMENT.
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_CGRCUSRCRESUPPUR_STR, 
MANDT TYPE STRING,
PURCHASINGDOCUMENT TYPE STRING,
PURCHASINGDOCUMENTCATEGORY TYPE STRING,
PURCHASINGDOCUMENTTYPE TYPE STRING,
COMPANYCODE TYPE STRING,
COMPANYCODENAME TYPE STRING,
PURCHASINGORGANIZATION TYPE STRING,
SUPPLIER TYPE STRING,
SUPPLIERNAME TYPE STRING,
CREATIONDATE TYPE STRING,
CREATEDBYUSER TYPE STRING,
USERDESCRIPTION TYPE STRING,
LASTCHANGEDATETIME TYPE STRING,
LASTCHANGEDATE TYPE STRING,
DOCUMENTCURRENCY TYPE STRING,
TARGETAMOUNT TYPE STRING,
DOWNPAYMENTAMOUNT TYPE STRING,
PURGRELEASETIMETOTALAMOUNT TYPE STRING,
PURCHASINGGROUP TYPE STRING,
PURCHASINGDOCUMENTNAME TYPE STRING,
PURCHASINGDOCUMENTORIGIN TYPE STRING,
RELEASEISNOTCOMPLETED TYPE STRING,
PURCHASINGCOMPLETENESSSTATUS TYPE STRING,
PURCHASINGPROCESSINGSTATUS TYPE STRING,
PURGRELEASESEQUENCESTATUS TYPE STRING,
RELEASECODE TYPE STRING,
PURCHASINGRELEASESTRATEGY TYPE STRING,
ISENDOFPURPOSEBLOCKED TYPE STRING,
PURCHASINGPARENTDOCUMENT TYPE STRING,
PROCMTHUBCOMPANYCODEGROUPINGID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CGRCUSRCRESUPPUR_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_CGRCUSRCRESUPPUR_STR-MANDT sy-vline 
WA_CGRCUSRCRESUPPUR_STR-PURCHASINGDOCUMENT sy-vline 
WA_CGRCUSRCRESUPPUR_STR-PURCHASINGDOCUMENTCATEGORY sy-vline 
WA_CGRCUSRCRESUPPUR_STR-PURCHASINGDOCUMENTTYPE sy-vline 
WA_CGRCUSRCRESUPPUR_STR-COMPANYCODE sy-vline 
WA_CGRCUSRCRESUPPUR_STR-COMPANYCODENAME sy-vline 
WA_CGRCUSRCRESUPPUR_STR-PURCHASINGORGANIZATION sy-vline 
WA_CGRCUSRCRESUPPUR_STR-SUPPLIER sy-vline 
WA_CGRCUSRCRESUPPUR_STR-SUPPLIERNAME sy-vline 
WA_CGRCUSRCRESUPPUR_STR-CREATIONDATE sy-vline 
WA_CGRCUSRCRESUPPUR_STR-CREATEDBYUSER sy-vline 
WA_CGRCUSRCRESUPPUR_STR-USERDESCRIPTION sy-vline 
WA_CGRCUSRCRESUPPUR_STR-LASTCHANGEDATETIME sy-vline 
WA_CGRCUSRCRESUPPUR_STR-LASTCHANGEDATE sy-vline 
WA_CGRCUSRCRESUPPUR_STR-DOCUMENTCURRENCY sy-vline 
WA_CGRCUSRCRESUPPUR_STR-TARGETAMOUNT sy-vline 
WA_CGRCUSRCRESUPPUR_STR-DOWNPAYMENTAMOUNT sy-vline 
WA_CGRCUSRCRESUPPUR_STR-PURGRELEASETIMETOTALAMOUNT sy-vline 
WA_CGRCUSRCRESUPPUR_STR-PURCHASINGGROUP sy-vline 
WA_CGRCUSRCRESUPPUR_STR-PURCHASINGDOCUMENTNAME sy-vline 
WA_CGRCUSRCRESUPPUR_STR-PURCHASINGDOCUMENTORIGIN sy-vline 
WA_CGRCUSRCRESUPPUR_STR-RELEASEISNOTCOMPLETED sy-vline 
WA_CGRCUSRCRESUPPUR_STR-PURCHASINGCOMPLETENESSSTATUS sy-vline 
WA_CGRCUSRCRESUPPUR_STR-PURCHASINGPROCESSINGSTATUS sy-vline 
WA_CGRCUSRCRESUPPUR_STR-PURGRELEASESEQUENCESTATUS sy-vline 
WA_CGRCUSRCRESUPPUR_STR-RELEASECODE sy-vline 
WA_CGRCUSRCRESUPPUR_STR-PURCHASINGRELEASESTRATEGY sy-vline 
WA_CGRCUSRCRESUPPUR_STR-ISENDOFPURPOSEBLOCKED sy-vline 
WA_CGRCUSRCRESUPPUR_STR-PURCHASINGPARENTDOCUMENT sy-vline 
WA_CGRCUSRCRESUPPUR_STR-PROCMTHUBCOMPANYCODEGROUPINGID sy-vline      INTO ld_text SEPARATED BY SPACE.

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