ABAP Select data from SAP table CSDBDRFS 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 CSDBDRFS 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 CSDBDRFS. 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 CSDBDRFS 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_CSDBDRFS TYPE STANDARD TABLE OF CSDBDRFS,
      WA_CSDBDRFS TYPE CSDBDRFS,
      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: <CSDBDRFS> TYPE CSDBDRFS.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CSDBDRFS
*  INTO TABLE @DATA(IT_CSDBDRFS2).
*--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_CSDBDRFS INDEX 1 INTO DATA(WA_CSDBDRFS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CSDBDRFS>-MANDT = 1.
<CSDBDRFS>-BILLINGDOCUMENTREQUEST = 1.
<CSDBDRFS>-BILLINGDOCUMENTREQUESTTYPE = 1.
<CSDBDRFS>-BILLINGDOCUMENTTYPENAME = 1.
<CSDBDRFS>-SOLDTOPARTY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CSDBDRFS-SALESDOCUMENTCONDITION, sy-vline,
  WA_CSDBDRFS-OVERALLBILLINGDOCREQSTATUS, sy-vline,
  WA_CSDBDRFS-COMPANYCODE, sy-vline,
  WA_CSDBDRFS-SALESORGANIZATION, sy-vline,
  WA_CSDBDRFS-BILLINGDOCUMENTDATE, sy-vline,
  WA_CSDBDRFS-BILLINGISSUETYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CSDBDRFS 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_CSDBDRFS 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_CSDBDRFS INTO WA_CSDBDRFS.


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

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

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

*Conversion exit ALPHA, internal->external for field BILLINGDOCREQUESTREFERENCE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CSDBDRFS-BILLINGDOCREQUESTREFERENCE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CSDBDRFS-BILLINGDOCREQUESTREFERENCE.
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_CSDBDRFS_STR, 
MANDT TYPE STRING,
BILLINGDOCUMENTREQUEST TYPE STRING,
BILLINGDOCUMENTREQUESTTYPE TYPE STRING,
BILLINGDOCUMENTTYPENAME TYPE STRING,
SOLDTOPARTY TYPE STRING,
SALESDOCUMENTCONDITION TYPE STRING,
OVERALLBILLINGDOCREQSTATUS TYPE STRING,
COMPANYCODE TYPE STRING,
SALESORGANIZATION TYPE STRING,
BILLINGDOCUMENTDATE TYPE STRING,
BILLINGISSUETYPE TYPE STRING,
BILLGDOCREQREFLGCLSYST TYPE STRING,
BILLINGDOCREQUESTREFERENCE TYPE STRING,
REFERENCEDOCSDDOCCATEGORY TYPE STRING,
PROPOSEDBILLINGDOCUMENTTYPE TYPE STRING,
TOTALTAXAMOUNT TYPE STRING,
TOTALGROSSAMOUNT TYPE STRING,
TOTALNETAMOUNT TYPE STRING,
TRANSACTIONCURRENCY TYPE STRING,
SDDOCUMENTCATEGORY TYPE STRING,
CUSTOMERPAYMENTTERMS TYPE STRING,
INCOTERMSVERSION TYPE STRING,
INCOTERMSCLASSIFICATION TYPE STRING,
INCOTERMSLOCATION1 TYPE STRING,
INCOTERMSLOCATION2 TYPE STRING,
CUSTOMERACCOUNTASSIGNMENTGROUP TYPE STRING,
DUNNINGAREA TYPE STRING,
DUNNINGBLOCKINGREASON TYPE STRING,
DUNNINGKEY TYPE STRING,
COUNTRY TYPE STRING,
CUSTOMERTAXCLASSIFICATION1 TYPE STRING,
VATREGISTRATION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CSDBDRFS_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_CSDBDRFS_STR-MANDT sy-vline 
WA_CSDBDRFS_STR-BILLINGDOCUMENTREQUEST sy-vline 
WA_CSDBDRFS_STR-BILLINGDOCUMENTREQUESTTYPE sy-vline 
WA_CSDBDRFS_STR-BILLINGDOCUMENTTYPENAME sy-vline 
WA_CSDBDRFS_STR-SOLDTOPARTY sy-vline 
WA_CSDBDRFS_STR-SALESDOCUMENTCONDITION sy-vline 
WA_CSDBDRFS_STR-OVERALLBILLINGDOCREQSTATUS sy-vline 
WA_CSDBDRFS_STR-COMPANYCODE sy-vline 
WA_CSDBDRFS_STR-SALESORGANIZATION sy-vline 
WA_CSDBDRFS_STR-BILLINGDOCUMENTDATE sy-vline 
WA_CSDBDRFS_STR-BILLINGISSUETYPE sy-vline 
WA_CSDBDRFS_STR-BILLGDOCREQREFLGCLSYST sy-vline 
WA_CSDBDRFS_STR-BILLINGDOCREQUESTREFERENCE sy-vline 
WA_CSDBDRFS_STR-REFERENCEDOCSDDOCCATEGORY sy-vline 
WA_CSDBDRFS_STR-PROPOSEDBILLINGDOCUMENTTYPE sy-vline 
WA_CSDBDRFS_STR-TOTALTAXAMOUNT sy-vline 
WA_CSDBDRFS_STR-TOTALGROSSAMOUNT sy-vline 
WA_CSDBDRFS_STR-TOTALNETAMOUNT sy-vline 
WA_CSDBDRFS_STR-TRANSACTIONCURRENCY sy-vline 
WA_CSDBDRFS_STR-SDDOCUMENTCATEGORY sy-vline 
WA_CSDBDRFS_STR-CUSTOMERPAYMENTTERMS sy-vline 
WA_CSDBDRFS_STR-INCOTERMSVERSION sy-vline 
WA_CSDBDRFS_STR-INCOTERMSCLASSIFICATION sy-vline 
WA_CSDBDRFS_STR-INCOTERMSLOCATION1 sy-vline 
WA_CSDBDRFS_STR-INCOTERMSLOCATION2 sy-vline 
WA_CSDBDRFS_STR-CUSTOMERACCOUNTASSIGNMENTGROUP sy-vline 
WA_CSDBDRFS_STR-DUNNINGAREA sy-vline 
WA_CSDBDRFS_STR-DUNNINGBLOCKINGREASON sy-vline 
WA_CSDBDRFS_STR-DUNNINGKEY sy-vline 
WA_CSDBDRFS_STR-COUNTRY sy-vline 
WA_CSDBDRFS_STR-CUSTOMERTAXCLASSIFICATION1 sy-vline 
WA_CSDBDRFS_STR-VATREGISTRATION sy-vline      INTO ld_text SEPARATED BY SPACE.

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