ABAP Select data from SAP table ICABUSLOCK into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ICABUSLOCK
*  INTO TABLE @DATA(IT_ICABUSLOCK2).
*--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_ICABUSLOCK INDEX 1 INTO DATA(WA_ICABUSLOCK2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ICABUSLOCK>-MANDT = 1.
<ICABUSLOCK>-CABUSINESSLOCKOBJECT = 1.
<ICABUSLOCK>-CABUSINESSLOCKOBJECTCATEGORY = 1.
<ICABUSLOCK>-CABUSINESSPROCESS = 1.
<ICABUSLOCK>-CABUSINESSLOCKREASON = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ICABUSLOCK-CABUSINESSLOCKVALIDFROM, sy-vline,
  WA_ICABUSLOCK-CABUSINESSLOCKVALIDTO, sy-vline,
  WA_ICABUSLOCK-BUSINESSPARTNER, sy-vline,
  WA_ICABUSLOCK-CONTRACTACCOUNT, sy-vline,
  WA_ICABUSLOCK-CACONDITIONALBUSLOCKOBJECT, sy-vline,
  WA_ICABUSLOCK-CABUSINESSLOCKACTIVITYCODE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ICABUSLOCK 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_ICABUSLOCK 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_ICABUSLOCK INTO WA_ICABUSLOCK.


*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_ICABUSLOCK-BUSINESSPARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICABUSLOCK-BUSINESSPARTNER.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field CACONTRACT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ICABUSLOCK-CACONTRACT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICABUSLOCK-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_ICABUSLOCK_STR, 
MANDT TYPE STRING,
CABUSINESSLOCKOBJECT TYPE STRING,
CABUSINESSLOCKOBJECTCATEGORY TYPE STRING,
CABUSINESSPROCESS TYPE STRING,
CABUSINESSLOCKREASON TYPE STRING,
CABUSINESSLOCKVALIDFROM TYPE STRING,
CABUSINESSLOCKVALIDTO TYPE STRING,
BUSINESSPARTNER TYPE STRING,
CONTRACTACCOUNT TYPE STRING,
CACONDITIONALBUSLOCKOBJECT TYPE STRING,
CABUSINESSLOCKACTIVITYCODE TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
LASTCHANGEDATE TYPE STRING,
LASTCHANGETIME TYPE STRING,
CAPROCLOCKWRITEPROTECTED TYPE STRING,
CAMASSRUNDATE TYPE STRING,
CAMASSRUNID TYPE STRING,
CAPROVIDERCONTRACTITEMCHARUUID TYPE STRING,
CAPROVIDERCONTRACTITEMUUID TYPE STRING,
CACONTRACT TYPE STRING,
CADOCUMENTNUMBER TYPE STRING,
CAREPETITIONITEMNUMBER TYPE STRING,
CABPITEMNUMBER TYPE STRING,
CASUBITEMNUMBER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ICABUSLOCK_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_ICABUSLOCK_STR-MANDT sy-vline 
WA_ICABUSLOCK_STR-CABUSINESSLOCKOBJECT sy-vline 
WA_ICABUSLOCK_STR-CABUSINESSLOCKOBJECTCATEGORY sy-vline 
WA_ICABUSLOCK_STR-CABUSINESSPROCESS sy-vline 
WA_ICABUSLOCK_STR-CABUSINESSLOCKREASON sy-vline 
WA_ICABUSLOCK_STR-CABUSINESSLOCKVALIDFROM sy-vline 
WA_ICABUSLOCK_STR-CABUSINESSLOCKVALIDTO sy-vline 
WA_ICABUSLOCK_STR-BUSINESSPARTNER sy-vline 
WA_ICABUSLOCK_STR-CONTRACTACCOUNT sy-vline 
WA_ICABUSLOCK_STR-CACONDITIONALBUSLOCKOBJECT sy-vline 
WA_ICABUSLOCK_STR-CABUSINESSLOCKACTIVITYCODE sy-vline 
WA_ICABUSLOCK_STR-LASTCHANGEDBYUSER sy-vline 
WA_ICABUSLOCK_STR-LASTCHANGEDATE sy-vline 
WA_ICABUSLOCK_STR-LASTCHANGETIME sy-vline 
WA_ICABUSLOCK_STR-CAPROCLOCKWRITEPROTECTED sy-vline 
WA_ICABUSLOCK_STR-CAMASSRUNDATE sy-vline 
WA_ICABUSLOCK_STR-CAMASSRUNID sy-vline 
WA_ICABUSLOCK_STR-CAPROVIDERCONTRACTITEMCHARUUID sy-vline 
WA_ICABUSLOCK_STR-CAPROVIDERCONTRACTITEMUUID sy-vline 
WA_ICABUSLOCK_STR-CACONTRACT sy-vline 
WA_ICABUSLOCK_STR-CADOCUMENTNUMBER sy-vline 
WA_ICABUSLOCK_STR-CAREPETITIONITEMNUMBER sy-vline 
WA_ICABUSLOCK_STR-CABPITEMNUMBER sy-vline 
WA_ICABUSLOCK_STR-CASUBITEMNUMBER sy-vline      INTO ld_text SEPARATED BY SPACE.

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