ABAP Select data from SAP table CARLOCKBOXITEM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CARLOCKBOXITEM
*  INTO TABLE @DATA(IT_CARLOCKBOXITEM2).
*--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_CARLOCKBOXITEM INDEX 1 INTO DATA(WA_CARLOCKBOXITEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CARLOCKBOXITEM>-MANDT = 1.
<CARLOCKBOXITEM>-LOCKBOXBATCHINTERNALKEY = 1.
<CARLOCKBOXITEM>-LOCKBOXBATCHITEM = 1.
<CARLOCKBOXITEM>-LOCKBOXBATCH = 1.
<CARLOCKBOXITEM>-VALUEDATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CARLOCKBOXITEM-CURRENCY, sy-vline,
  WA_CARLOCKBOXITEM-AMOUNTINTRANSACTIONCURRENCY, sy-vline,
  WA_CARLOCKBOXITEM-LOCKBOXBATCHITMSTATUS, sy-vline,
  WA_CARLOCKBOXITEM-LOCKBOXBATCHITMSTATUSNAME, sy-vline,
  WA_CARLOCKBOXITEM-CHEQUE, sy-vline,
  WA_CARLOCKBOXITEM-PARTNERBANKCOUNTRY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CARLOCKBOXITEM 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_CARLOCKBOXITEM 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_CARLOCKBOXITEM INTO WA_CARLOCKBOXITEM.


*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 AC132, internal->external for field AMOUNTINTRANSACTIONCURRENCY
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_CARLOCKBOXITEM-AMOUNTINTRANSACTIONCURRENCY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CARLOCKBOXITEM-AMOUNTINTRANSACTIONCURRENCY.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit GJAHR, internal->external for field FISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_CARLOCKBOXITEM-FISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CARLOCKBOXITEM-FISCALYEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SUBLEDGERDOCUMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CARLOCKBOXITEM-SUBLEDGERDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CARLOCKBOXITEM-SUBLEDGERDOCUMENT.
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_CARLOCKBOXITEM_STR, 
MANDT TYPE STRING,
LOCKBOXBATCHINTERNALKEY TYPE STRING,
LOCKBOXBATCHITEM TYPE STRING,
LOCKBOXBATCH TYPE STRING,
VALUEDATE TYPE STRING,
CURRENCY TYPE STRING,
AMOUNTINTRANSACTIONCURRENCY TYPE STRING,
LOCKBOXBATCHITMSTATUS TYPE STRING,
LOCKBOXBATCHITMSTATUSNAME TYPE STRING,
CHEQUE TYPE STRING,
PARTNERBANKCOUNTRY TYPE STRING,
PARTNERBANK TYPE STRING,
PARTNERBANKACCOUNT TYPE STRING,
BANKLEDGERDOCUMENT TYPE STRING,
CUSTOMER TYPE STRING,
APPLICATIONLOG TYPE STRING,
MEMOLINE1 TYPE STRING,
MEMOLINE TYPE STRING,
PAYMENTADVICE TYPE STRING,
ASSIGNMENTREFERENCE TYPE STRING,
PAYMENTEXTERNALTRANSACTYPE TYPE STRING,
DOCUMENTITEMTEXT TYPE STRING,
DOCUMENTREFERENCEID TYPE STRING,
PAYMENTMANUALTRANSACTYPE TYPE STRING,
BANKLEDGERISPOSTED TYPE STRING,
SUBLEDGERISPOSTEDSUCCESSFULLY TYPE STRING,
LOCKBOXSUBLEDGERDOCUMENT TYPE STRING,
COMPANYCODE TYPE STRING,
FISCALYEAR TYPE STRING,
SUBLEDGERDOCUMENT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CARLOCKBOXITEM_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_CARLOCKBOXITEM_STR-MANDT sy-vline 
WA_CARLOCKBOXITEM_STR-LOCKBOXBATCHINTERNALKEY sy-vline 
WA_CARLOCKBOXITEM_STR-LOCKBOXBATCHITEM sy-vline 
WA_CARLOCKBOXITEM_STR-LOCKBOXBATCH sy-vline 
WA_CARLOCKBOXITEM_STR-VALUEDATE sy-vline 
WA_CARLOCKBOXITEM_STR-CURRENCY sy-vline 
WA_CARLOCKBOXITEM_STR-AMOUNTINTRANSACTIONCURRENCY sy-vline 
WA_CARLOCKBOXITEM_STR-LOCKBOXBATCHITMSTATUS sy-vline 
WA_CARLOCKBOXITEM_STR-LOCKBOXBATCHITMSTATUSNAME sy-vline 
WA_CARLOCKBOXITEM_STR-CHEQUE sy-vline 
WA_CARLOCKBOXITEM_STR-PARTNERBANKCOUNTRY sy-vline 
WA_CARLOCKBOXITEM_STR-PARTNERBANK sy-vline 
WA_CARLOCKBOXITEM_STR-PARTNERBANKACCOUNT sy-vline 
WA_CARLOCKBOXITEM_STR-BANKLEDGERDOCUMENT sy-vline 
WA_CARLOCKBOXITEM_STR-CUSTOMER sy-vline 
WA_CARLOCKBOXITEM_STR-APPLICATIONLOG sy-vline 
WA_CARLOCKBOXITEM_STR-MEMOLINE1 sy-vline 
WA_CARLOCKBOXITEM_STR-MEMOLINE sy-vline 
WA_CARLOCKBOXITEM_STR-PAYMENTADVICE sy-vline 
WA_CARLOCKBOXITEM_STR-ASSIGNMENTREFERENCE sy-vline 
WA_CARLOCKBOXITEM_STR-PAYMENTEXTERNALTRANSACTYPE sy-vline 
WA_CARLOCKBOXITEM_STR-DOCUMENTITEMTEXT sy-vline 
WA_CARLOCKBOXITEM_STR-DOCUMENTREFERENCEID sy-vline 
WA_CARLOCKBOXITEM_STR-PAYMENTMANUALTRANSACTYPE sy-vline 
WA_CARLOCKBOXITEM_STR-BANKLEDGERISPOSTED sy-vline 
WA_CARLOCKBOXITEM_STR-SUBLEDGERISPOSTEDSUCCESSFULLY sy-vline 
WA_CARLOCKBOXITEM_STR-LOCKBOXSUBLEDGERDOCUMENT sy-vline 
WA_CARLOCKBOXITEM_STR-COMPANYCODE sy-vline 
WA_CARLOCKBOXITEM_STR-FISCALYEAR sy-vline 
WA_CARLOCKBOXITEM_STR-SUBLEDGERDOCUMENT sy-vline      INTO ld_text SEPARATED BY SPACE.

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