ABAP Select data from SAP table MIBEMPLOYEE_LEAVE_REQUEST_CR18 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP MIBEMPLOYEE_LEAVE_REQUEST_CR18 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 MIBEMPLOYEE_LEAVE_REQUEST_CR18. 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 MIBEMPLOYEE_LEAVE_REQUEST_CR18 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_MIBEMPLOYEE_LEAVE_REQUEST_CR18 TYPE STANDARD TABLE OF MIBEMPLOYEE_LEAVE_REQUEST_CR18,
      WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18 TYPE MIBEMPLOYEE_LEAVE_REQUEST_CR18,
      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: <MIBEMPLOYEE_LEAVE_REQUEST_CR18> TYPE MIBEMPLOYEE_LEAVE_REQUEST_CR18.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_MIBEMPLOYEE_LEAVE_REQUEST_CR18.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM MIBEMPLOYEE_LEAVE_REQUEST_CR18
  INTO TABLE IT_MIBEMPLOYEE_LEAVE_REQUEST_CR18.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MIBEMPLOYEE_LEAVE_REQUEST_CR18
*  INTO TABLE @DATA(IT_MIBEMPLOYEE_LEAVE_REQUEST_CR182).
*--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_MIBEMPLOYEE_LEAVE_REQUEST_CR18 INDEX 1 INTO DATA(WA_MIBEMPLOYEE_LEAVE_REQUEST_CR182).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_MIBEMPLOYEE_LEAVE_REQUEST_CR18 ASSIGNING <MIBEMPLOYEE_LEAVE_REQUEST_CR18>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MIBEMPLOYEE_LEAVE_REQUEST_CR18>-CONTROLLER = 1.
<MIBEMPLOYEE_LEAVE_REQUEST_CR18>-MESSAGE_HEADER = 1.
<MIBEMPLOYEE_LEAVE_REQUEST_CR18>-CONTROLLER = 1.
<MIBEMPLOYEE_LEAVE_REQUEST_CR18>-ID = 1.
<MIBEMPLOYEE_LEAVE_REQUEST_CR18>-CONTROLLER = 1.

ENDLOOP.

LOOP AT IT_MIBEMPLOYEE_LEAVE_REQUEST_CR18 INTO WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18-SCHEME_ID, sy-vline,
  WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18-SCHEME_AGENCY_ID, sy-vline,
  WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18-SCHEME_AGENCY_SCHEME_AGENCY_ID, sy-vline,
  WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18-CONTENT, sy-vline,
  WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18-UUID, sy-vline,
  WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18-REFERENCE_ID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18 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_MIBEMPLOYEE_LEAVE_REQUEST_CR18 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_MIBEMPLOYEE_LEAVE_REQUEST_CR18 INTO WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR, 
CONTROLLER TYPE STRING,
MESSAGE_HEADER TYPE STRING,
CONTROLLER TYPE STRING,
ID TYPE STRING,
CONTROLLER TYPE STRING,
SCHEME_ID TYPE STRING,
SCHEME_AGENCY_ID TYPE STRING,
SCHEME_AGENCY_SCHEME_AGENCY_ID TYPE STRING,
CONTENT TYPE STRING,
UUID TYPE STRING,
REFERENCE_ID TYPE STRING,
CONTROLLER TYPE STRING,
SCHEME_ID TYPE STRING,
SCHEME_AGENCY_ID TYPE STRING,
SCHEME_AGENCY_SCHEME_AGENCY_ID TYPE STRING,
CONTENT TYPE STRING,
REFERENCE_UUID TYPE STRING,
EMPLOYEE_LEAVE_REQUEST TYPE STRING,
CONTROLLER TYPE STRING,
ID TYPE STRING,
CONTROLLER TYPE STRING,
SCHEME_ID TYPE STRING,
SCHEME_AGENCY_ID TYPE STRING,
SCHEME_AGENCY_SCHEME_AGENCY_ID TYPE STRING,
CONTENT TYPE STRING,
CHANGE_STATE_ID TYPE STRING,
FIRST_SUBMISSION_DATE_TIME TYPE STRING,
CONTROLLER TYPE STRING,
TIME_ZONE_CODE TYPE STRING,
DAYLIGHT_SAVING_TIME_INDICATOR TYPE STRING,
CONTENT TYPE STRING,
LIFE_CYCLE_STATUS_CODE TYPE STRING,
CONTROLLER TYPE STRING,
LIST_VERSION_ID TYPE STRING,
CONTENT TYPE STRING,
LIFE_CYCLE_STATUS_NAME TYPE STRING,
CONTROLLER TYPE STRING,
LANGUAGE_CODE TYPE STRING,
CONTENT TYPE STRING,
PARTICIPANT TYPE STRING,
NOTE TYPE STRING,
LEAVE_EMPLOYEE_TIME_REFERENCE TYPE STRING,
CONTROLLER TYPE STRING,
ACTION_CODE TYPE STRING,
LEAVE_EMPLOYEE_TIME_REFERENCE TYPE STRING,
CONTROLLER TYPE STRING,
ID TYPE STRING,
CONTROLLER TYPE STRING,
SCHEME_ID TYPE STRING,
SCHEME_AGENCY_ID TYPE STRING,
SCHEME_AGENCY_SCHEME_AGENCY_ID TYPE STRING,
CONTENT TYPE STRING,
UUID TYPE STRING,
CONTROLLER TYPE STRING,
SCHEME_ID TYPE STRING,
SCHEME_AGENCY_ID TYPE STRING,
CONTENT TYPE STRING,
TYPE_CODE TYPE STRING,
ITEM_ID TYPE STRING,
ITEM_UUID TYPE STRING,
CONTROLLER TYPE STRING,
SCHEME_ID TYPE STRING,
SCHEME_AGENCY_ID TYPE STRING,
CONTENT TYPE STRING,
ITEM_TYPE_CODE TYPE STRING,
LEAVE_EMPLOYEE_TIME_ITEM TYPE STRING,
LOG TYPE STRING,
CONTROLLER TYPE STRING,
BUSINESS_DOCUMENT_PROCESSING_R TYPE STRING,
MAXIMUM_LOG_ITEM_SEVERITY_CODE TYPE STRING,
ITEM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_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_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-CONTROLLER sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-MESSAGE_HEADER sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-CONTROLLER sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-ID sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-CONTROLLER sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-SCHEME_ID sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-SCHEME_AGENCY_ID sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-SCHEME_AGENCY_SCHEME_AGENCY_ID sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-CONTENT sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-UUID sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-REFERENCE_ID sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-CONTROLLER sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-SCHEME_ID sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-SCHEME_AGENCY_ID sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-SCHEME_AGENCY_SCHEME_AGENCY_ID sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-CONTENT sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-REFERENCE_UUID sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-EMPLOYEE_LEAVE_REQUEST sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-CONTROLLER sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-ID sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-CONTROLLER sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-SCHEME_ID sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-SCHEME_AGENCY_ID sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-SCHEME_AGENCY_SCHEME_AGENCY_ID sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-CONTENT sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-CHANGE_STATE_ID sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-FIRST_SUBMISSION_DATE_TIME sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-CONTROLLER sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-TIME_ZONE_CODE sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-DAYLIGHT_SAVING_TIME_INDICATOR sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-CONTENT sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-LIFE_CYCLE_STATUS_CODE sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-CONTROLLER sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-LIST_VERSION_ID sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-CONTENT sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-LIFE_CYCLE_STATUS_NAME sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-CONTROLLER sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-LANGUAGE_CODE sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-CONTENT sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-PARTICIPANT sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-NOTE sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-LEAVE_EMPLOYEE_TIME_REFERENCE sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-CONTROLLER sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-ACTION_CODE sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-LEAVE_EMPLOYEE_TIME_REFERENCE sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-CONTROLLER sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-ID sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-CONTROLLER sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-SCHEME_ID sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-SCHEME_AGENCY_ID sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-SCHEME_AGENCY_SCHEME_AGENCY_ID sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-CONTENT sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-UUID sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-CONTROLLER sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-SCHEME_ID sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-SCHEME_AGENCY_ID sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-CONTENT sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-TYPE_CODE sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-ITEM_ID sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-ITEM_UUID sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-CONTROLLER sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-SCHEME_ID sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-SCHEME_AGENCY_ID sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-CONTENT sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-ITEM_TYPE_CODE sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-LEAVE_EMPLOYEE_TIME_ITEM sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-LOG sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-CONTROLLER sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-BUSINESS_DOCUMENT_PROCESSING_R sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-MAXIMUM_LOG_ITEM_SEVERITY_CODE sy-vline 
WA_MIBEMPLOYEE_LEAVE_REQUEST_CR18_STR-ITEM sy-vline      INTO ld_text SEPARATED BY SPACE.

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