ABAP Select data from SAP table CCABUSLOCK into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CCABUSLOCK
*  INTO TABLE @DATA(IT_CCABUSLOCK2).
*--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_CCABUSLOCK INDEX 1 INTO DATA(WA_CCABUSLOCK2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CCABUSLOCK>-MANDT = 1.
<CCABUSLOCK>-CADOCUMENTNUMBER = 1.
<CCABUSLOCK>-CAREPETITIONITEMNUMBER = 1.
<CCABUSLOCK>-CABPITEMNUMBER = 1.
<CCABUSLOCK>-CASUBITEMNUMBER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CCABUSLOCK-CABUSINESSLOCKOBJECT, sy-vline,
  WA_CCABUSLOCK-CABUSINESSLOCKVALIDFROM, sy-vline,
  WA_CCABUSLOCK-CABUSINESSLOCKVALIDTO, sy-vline,
  WA_CCABUSLOCK-CONTRACTACCOUNT, sy-vline,
  WA_CCABUSLOCK-BUSINESSPARTNER, sy-vline,
  WA_CCABUSLOCK-CABUSINESSLOCKREASON, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CCABUSLOCK 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_CCABUSLOCK 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_CCABUSLOCK INTO WA_CCABUSLOCK.


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

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

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

*Conversion exit ALPHA, internal->external for field CACONTRACT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CCABUSLOCK-CACONTRACT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CCABUSLOCK-CACONTRACT.
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_CCABUSLOCK_STR, 
MANDT TYPE STRING,
CADOCUMENTNUMBER TYPE STRING,
CAREPETITIONITEMNUMBER TYPE STRING,
CABPITEMNUMBER TYPE STRING,
CASUBITEMNUMBER TYPE STRING,
CABUSINESSLOCKOBJECT TYPE STRING,
CABUSINESSLOCKVALIDFROM TYPE STRING,
CABUSINESSLOCKVALIDTO TYPE STRING,
CONTRACTACCOUNT TYPE STRING,
BUSINESSPARTNER TYPE STRING,
CABUSINESSLOCKREASON TYPE STRING,
LASTNAME TYPE STRING,
FIRSTNAME TYPE STRING,
BUSINESSPARTNERNAME TYPE STRING,
CABUSINESSLOCKOBJECTCATEGORY TYPE STRING,
CABUSINESSPROCESS TYPE STRING,
LASTCHANGEDATE TYPE STRING,
CABUSINESSLOCKDURATION TYPE STRING,
CACONTRACT TYPE STRING,
CASUBAPPLICATION TYPE STRING,
CONTRACTACCOUNTCATEGORY TYPE STRING,
CABUSINESSLOCKSEQUENCENUMBER TYPE STRING,
COMPANYCODE TYPE STRING,
DIVISION TYPE STRING,
CAMAINTRANSACTION TYPE STRING,
CAPAYMENTMETHOD TYPE STRING,
CAPAYMENTMETHODFORINCGPAYMENT TYPE STRING,
CADUNNINGPROCEDURE TYPE STRING,
CADUNNINGPROCEDUREFORCONTRACCT TYPE STRING,
CACOLLECTIONSTRATEGY TYPE STRING,
CAAMOUNTINTRANSACTIONCURRENCY TYPE STRING,
TRANSACTIONCURRENCY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CCABUSLOCK_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_CCABUSLOCK_STR-MANDT sy-vline 
WA_CCABUSLOCK_STR-CADOCUMENTNUMBER sy-vline 
WA_CCABUSLOCK_STR-CAREPETITIONITEMNUMBER sy-vline 
WA_CCABUSLOCK_STR-CABPITEMNUMBER sy-vline 
WA_CCABUSLOCK_STR-CASUBITEMNUMBER sy-vline 
WA_CCABUSLOCK_STR-CABUSINESSLOCKOBJECT sy-vline 
WA_CCABUSLOCK_STR-CABUSINESSLOCKVALIDFROM sy-vline 
WA_CCABUSLOCK_STR-CABUSINESSLOCKVALIDTO sy-vline 
WA_CCABUSLOCK_STR-CONTRACTACCOUNT sy-vline 
WA_CCABUSLOCK_STR-BUSINESSPARTNER sy-vline 
WA_CCABUSLOCK_STR-CABUSINESSLOCKREASON sy-vline 
WA_CCABUSLOCK_STR-LASTNAME sy-vline 
WA_CCABUSLOCK_STR-FIRSTNAME sy-vline 
WA_CCABUSLOCK_STR-BUSINESSPARTNERNAME sy-vline 
WA_CCABUSLOCK_STR-CABUSINESSLOCKOBJECTCATEGORY sy-vline 
WA_CCABUSLOCK_STR-CABUSINESSPROCESS sy-vline 
WA_CCABUSLOCK_STR-LASTCHANGEDATE sy-vline 
WA_CCABUSLOCK_STR-CABUSINESSLOCKDURATION sy-vline 
WA_CCABUSLOCK_STR-CACONTRACT sy-vline 
WA_CCABUSLOCK_STR-CASUBAPPLICATION sy-vline 
WA_CCABUSLOCK_STR-CONTRACTACCOUNTCATEGORY sy-vline 
WA_CCABUSLOCK_STR-CABUSINESSLOCKSEQUENCENUMBER sy-vline 
WA_CCABUSLOCK_STR-COMPANYCODE sy-vline 
WA_CCABUSLOCK_STR-DIVISION sy-vline 
WA_CCABUSLOCK_STR-CAMAINTRANSACTION sy-vline 
WA_CCABUSLOCK_STR-CAPAYMENTMETHOD sy-vline 
WA_CCABUSLOCK_STR-CAPAYMENTMETHODFORINCGPAYMENT sy-vline 
WA_CCABUSLOCK_STR-CADUNNINGPROCEDURE sy-vline 
WA_CCABUSLOCK_STR-CADUNNINGPROCEDUREFORCONTRACCT sy-vline 
WA_CCABUSLOCK_STR-CACOLLECTIONSTRATEGY sy-vline 
WA_CCABUSLOCK_STR-CAAMOUNTINTRANSACTIONCURRENCY sy-vline 
WA_CCABUSLOCK_STR-TRANSACTIONCURRENCY sy-vline      INTO ld_text SEPARATED BY SPACE.

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