ABAP Select data from SAP table CACREDITWMATP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CACREDITWMATP
*  INTO TABLE @DATA(IT_CACREDITWMATP2).
*--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_CACREDITWMATP INDEX 1 INTO DATA(WA_CACREDITWMATP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CACREDITWMATP>-MANDT = 1.
<CACREDITWMATP>-BUSINESSPARTNER = 1.
<CACREDITWMATP>-CALENDARYEAR = 1.
<CACREDITWMATP>-BUSINESSPARTNERFULLNAME = 1.
<CACREDITWMATP>-BUSINESSPARTNERFOREDIT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CACREDITWMATP-FIRSTNAME, sy-vline,
  WA_CACREDITWMATP-LASTNAME, sy-vline,
  WA_CACREDITWMATP-GROUPBUSINESSPARTNERNAME1, sy-vline,
  WA_CACREDITWMATP-GROUPBUSINESSPARTNERNAME2, sy-vline,
  WA_CACREDITWMATP-ORGANIZATIONBPNAME1, sy-vline,
  WA_CACREDITWMATP-ORGANIZATIONBPNAME2, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CACREDITWMATP 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_CACREDITWMATP 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_CACREDITWMATP INTO WA_CACREDITWMATP.


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

*Conversion exit ALPHA, internal->external for field BUSINESSPARTNERFOREDIT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CACREDITWMATP-BUSINESSPARTNERFOREDIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CACREDITWMATP-BUSINESSPARTNERFOREDIT.
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_CACREDITWMATP_STR, 
MANDT TYPE STRING,
BUSINESSPARTNER TYPE STRING,
CALENDARYEAR TYPE STRING,
BUSINESSPARTNERFULLNAME TYPE STRING,
BUSINESSPARTNERFOREDIT TYPE STRING,
FIRSTNAME TYPE STRING,
LASTNAME TYPE STRING,
GROUPBUSINESSPARTNERNAME1 TYPE STRING,
GROUPBUSINESSPARTNERNAME2 TYPE STRING,
ORGANIZATIONBPNAME1 TYPE STRING,
ORGANIZATIONBPNAME2 TYPE STRING,
POSTALCODE TYPE STRING,
CITYNAME TYPE STRING,
STREETNAME TYPE STRING,
HOUSENUMBER TYPE STRING,
COMPLETEADDRESS TYPE STRING,
ADDRESSLINE1 TYPE STRING,
ADDRESSLINE2 TYPE STRING,
ADDRESSLINE3 TYPE STRING,
CATOTALCREDITWORTHINESSVALUE TYPE STRING,
CACREDITWORTHINESS TYPE STRING,
CAEXTERNALCREDITWORTHINESSVAL TYPE STRING,
CREDITRISKCLASS TYPE STRING,
CREDITRISKCLASSNAME TYPE STRING,
CAMANUALCREDITWORTHINESSVALUE TYPE STRING,
CACREDITWORTHINESSFACTORINPCT TYPE STRING,
CACALCDCREDITWORTHINESSVALUE TYPE STRING,
CAMANUALCREDITWORTHINESSDATE TYPE STRING,
CAFROZENCRDTWRTHNSSFORDSPVALUE TYPE STRING,
CAFROZENCREDITWORTHINESSDATE TYPE STRING,
CAUNFROZENCREDITWORTHINESSDATE TYPE STRING,
AUTHORIZATIONGROUP TYPE STRING,
CAFROZENCRDTWRTHNSSFORDSPDATE TYPE STRING,
CAUNFROZENCRDTWRTHNSSFORDSPDTE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CACREDITWMATP_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_CACREDITWMATP_STR-MANDT sy-vline 
WA_CACREDITWMATP_STR-BUSINESSPARTNER sy-vline 
WA_CACREDITWMATP_STR-CALENDARYEAR sy-vline 
WA_CACREDITWMATP_STR-BUSINESSPARTNERFULLNAME sy-vline 
WA_CACREDITWMATP_STR-BUSINESSPARTNERFOREDIT sy-vline 
WA_CACREDITWMATP_STR-FIRSTNAME sy-vline 
WA_CACREDITWMATP_STR-LASTNAME sy-vline 
WA_CACREDITWMATP_STR-GROUPBUSINESSPARTNERNAME1 sy-vline 
WA_CACREDITWMATP_STR-GROUPBUSINESSPARTNERNAME2 sy-vline 
WA_CACREDITWMATP_STR-ORGANIZATIONBPNAME1 sy-vline 
WA_CACREDITWMATP_STR-ORGANIZATIONBPNAME2 sy-vline 
WA_CACREDITWMATP_STR-POSTALCODE sy-vline 
WA_CACREDITWMATP_STR-CITYNAME sy-vline 
WA_CACREDITWMATP_STR-STREETNAME sy-vline 
WA_CACREDITWMATP_STR-HOUSENUMBER sy-vline 
WA_CACREDITWMATP_STR-COMPLETEADDRESS sy-vline 
WA_CACREDITWMATP_STR-ADDRESSLINE1 sy-vline 
WA_CACREDITWMATP_STR-ADDRESSLINE2 sy-vline 
WA_CACREDITWMATP_STR-ADDRESSLINE3 sy-vline 
WA_CACREDITWMATP_STR-CATOTALCREDITWORTHINESSVALUE sy-vline 
WA_CACREDITWMATP_STR-CACREDITWORTHINESS sy-vline 
WA_CACREDITWMATP_STR-CAEXTERNALCREDITWORTHINESSVAL sy-vline 
WA_CACREDITWMATP_STR-CREDITRISKCLASS sy-vline 
WA_CACREDITWMATP_STR-CREDITRISKCLASSNAME sy-vline 
WA_CACREDITWMATP_STR-CAMANUALCREDITWORTHINESSVALUE sy-vline 
WA_CACREDITWMATP_STR-CACREDITWORTHINESSFACTORINPCT sy-vline 
WA_CACREDITWMATP_STR-CACALCDCREDITWORTHINESSVALUE sy-vline 
WA_CACREDITWMATP_STR-CAMANUALCREDITWORTHINESSDATE sy-vline 
WA_CACREDITWMATP_STR-CAFROZENCRDTWRTHNSSFORDSPVALUE sy-vline 
WA_CACREDITWMATP_STR-CAFROZENCREDITWORTHINESSDATE sy-vline 
WA_CACREDITWMATP_STR-CAUNFROZENCREDITWORTHINESSDATE sy-vline 
WA_CACREDITWMATP_STR-AUTHORIZATIONGROUP sy-vline 
WA_CACREDITWMATP_STR-CAFROZENCRDTWRTHNSSFORDSPDATE sy-vline 
WA_CACREDITWMATP_STR-CAUNFROZENCRDTWRTHNSSFORDSPDTE sy-vline      INTO ld_text SEPARATED BY SPACE.

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