ABAP Select data from SAP table /GBHCM/S_MA_LA_LEAVE_REQUEST2 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /GBHCM/S_MA_LA_LEAVE_REQUEST2 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 /GBHCM/S_MA_LA_LEAVE_REQUEST2. 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 /GBHCM/S_MA_LA_LEAVE_REQUEST2 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_/GBHCM/S_MA_LA_LEAVE_REQUEST2 TYPE STANDARD TABLE OF /GBHCM/S_MA_LA_LEAVE_REQUEST2,
      WA_/GBHCM/S_MA_LA_LEAVE_REQUEST2 TYPE /GBHCM/S_MA_LA_LEAVE_REQUEST2,
      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: </GBHCM/S_MA_LA_LEAVE_REQUEST2> TYPE /GBHCM/S_MA_LA_LEAVE_REQUEST2.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/GBHCM/S_MA_LA_LEAVE_REQUEST2.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /GBHCM/S_MA_LA_LEAVE_REQUEST2
  INTO TABLE IT_/GBHCM/S_MA_LA_LEAVE_REQUEST2.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /GBHCM/S_MA_LA_LEAVE_REQUEST2
*  INTO TABLE @DATA(IT_/GBHCM/S_MA_LA_LEAVE_REQUEST22).
*--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_/GBHCM/S_MA_LA_LEAVE_REQUEST2 INDEX 1 INTO DATA(WA_/GBHCM/S_MA_LA_LEAVE_REQUEST22).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/GBHCM/S_MA_LA_LEAVE_REQUEST2 ASSIGNING </GBHCM/S_MA_LA_LEAVE_REQUEST2>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</GBHCM/S_MA_LA_LEAVE_REQUEST2>-REQUEST_ID = 1.
</GBHCM/S_MA_LA_LEAVE_REQUEST2>-APPROVER = 1.
</GBHCM/S_MA_LA_LEAVE_REQUEST2>-APPROVER_NR = 1.
</GBHCM/S_MA_LA_LEAVE_REQUEST2>-REQUESTER = 1.
</GBHCM/S_MA_LA_LEAVE_REQUEST2>-REQUESTER_NR = 1.

ENDLOOP.

LOOP AT IT_/GBHCM/S_MA_LA_LEAVE_REQUEST2 INTO WA_/GBHCM/S_MA_LA_LEAVE_REQUEST2.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/GBHCM/S_MA_LA_LEAVE_REQUEST2-FIRST_SUBM_DATE, sy-vline,
  WA_/GBHCM/S_MA_LA_LEAVE_REQUEST2-FIRST_SUBM_TIME, sy-vline,
  WA_/GBHCM/S_MA_LA_LEAVE_REQUEST2-ABSENCE_TYPE, sy-vline,
  WA_/GBHCM/S_MA_LA_LEAVE_REQUEST2-ABSENCE_TYPE_DESC, sy-vline,
  WA_/GBHCM/S_MA_LA_LEAVE_REQUEST2-BEGDA, sy-vline,
  WA_/GBHCM/S_MA_LA_LEAVE_REQUEST2-ENDDA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/GBHCM/S_MA_LA_LEAVE_REQUEST2 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_/GBHCM/S_MA_LA_LEAVE_REQUEST2 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_/GBHCM/S_MA_LA_LEAVE_REQUEST2 INTO WA_/GBHCM/S_MA_LA_LEAVE_REQUEST2.


*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_/GBHCM/S_MA_LA_LEAVE_REQUEST2_STR, 
REQUEST_ID TYPE STRING,
APPROVER TYPE STRING,
APPROVER_NR TYPE STRING,
REQUESTER TYPE STRING,
REQUESTER_NR TYPE STRING,
FIRST_SUBM_DATE TYPE STRING,
FIRST_SUBM_TIME TYPE STRING,
ABSENCE_TYPE TYPE STRING,
ABSENCE_TYPE_DESC TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
BEGIN_TIME TYPE STRING,
END_TIME TYPE STRING,
ATTABS_HOURS TYPE STRING,
ALL_DAY_FLAG TYPE STRING,
ABSENCE_DAYS TYPE STRING,
CALENDAR_DAYS TYPE STRING,
NOTE TYPE STRING,
VERSION_NO TYPE STRING,
STATUS_CODE TYPE STRING,
STATUS_NAME TYPE STRING,
CHANGE_DATE TYPE STRING,
CHANGE_TIME TYPE STRING,
CHANGE_PERS_NAME TYPE STRING,
GET_ALL_REQUESTS TYPE STRING,
LRQ_TYPE TYPE STRING,
NR_OVERLAPS TYPE STRING,
OVERLAPLIST TYPE STRING,
NOTES_COUNTER TYPE STRING,
TASK_DEF_ID TYPE STRING,
CURR_BALANCE TYPE STRING,
CURR_BAL_TIMEUNIT TYPE STRING,
CURR_BALANCE_TU_CODE TYPE STRING,
CURR_BAL_WARNING TYPE STRING,
CALC_OVERLAP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/GBHCM/S_MA_LA_LEAVE_REQUEST2_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_/GBHCM/S_MA_LA_LEAVE_REQUEST2_STR-REQUEST_ID sy-vline 
WA_/GBHCM/S_MA_LA_LEAVE_REQUEST2_STR-APPROVER sy-vline 
WA_/GBHCM/S_MA_LA_LEAVE_REQUEST2_STR-APPROVER_NR sy-vline 
WA_/GBHCM/S_MA_LA_LEAVE_REQUEST2_STR-REQUESTER sy-vline 
WA_/GBHCM/S_MA_LA_LEAVE_REQUEST2_STR-REQUESTER_NR sy-vline 
WA_/GBHCM/S_MA_LA_LEAVE_REQUEST2_STR-FIRST_SUBM_DATE sy-vline 
WA_/GBHCM/S_MA_LA_LEAVE_REQUEST2_STR-FIRST_SUBM_TIME sy-vline 
WA_/GBHCM/S_MA_LA_LEAVE_REQUEST2_STR-ABSENCE_TYPE sy-vline 
WA_/GBHCM/S_MA_LA_LEAVE_REQUEST2_STR-ABSENCE_TYPE_DESC sy-vline 
WA_/GBHCM/S_MA_LA_LEAVE_REQUEST2_STR-BEGDA sy-vline 
WA_/GBHCM/S_MA_LA_LEAVE_REQUEST2_STR-ENDDA sy-vline 
WA_/GBHCM/S_MA_LA_LEAVE_REQUEST2_STR-BEGIN_TIME sy-vline 
WA_/GBHCM/S_MA_LA_LEAVE_REQUEST2_STR-END_TIME sy-vline 
WA_/GBHCM/S_MA_LA_LEAVE_REQUEST2_STR-ATTABS_HOURS sy-vline 
WA_/GBHCM/S_MA_LA_LEAVE_REQUEST2_STR-ALL_DAY_FLAG sy-vline 
WA_/GBHCM/S_MA_LA_LEAVE_REQUEST2_STR-ABSENCE_DAYS sy-vline 
WA_/GBHCM/S_MA_LA_LEAVE_REQUEST2_STR-CALENDAR_DAYS sy-vline 
WA_/GBHCM/S_MA_LA_LEAVE_REQUEST2_STR-NOTE sy-vline 
WA_/GBHCM/S_MA_LA_LEAVE_REQUEST2_STR-VERSION_NO sy-vline 
WA_/GBHCM/S_MA_LA_LEAVE_REQUEST2_STR-STATUS_CODE sy-vline 
WA_/GBHCM/S_MA_LA_LEAVE_REQUEST2_STR-STATUS_NAME sy-vline 
WA_/GBHCM/S_MA_LA_LEAVE_REQUEST2_STR-CHANGE_DATE sy-vline 
WA_/GBHCM/S_MA_LA_LEAVE_REQUEST2_STR-CHANGE_TIME sy-vline 
WA_/GBHCM/S_MA_LA_LEAVE_REQUEST2_STR-CHANGE_PERS_NAME sy-vline 
WA_/GBHCM/S_MA_LA_LEAVE_REQUEST2_STR-GET_ALL_REQUESTS sy-vline 
WA_/GBHCM/S_MA_LA_LEAVE_REQUEST2_STR-LRQ_TYPE sy-vline 
WA_/GBHCM/S_MA_LA_LEAVE_REQUEST2_STR-NR_OVERLAPS sy-vline 
WA_/GBHCM/S_MA_LA_LEAVE_REQUEST2_STR-OVERLAPLIST sy-vline 
WA_/GBHCM/S_MA_LA_LEAVE_REQUEST2_STR-NOTES_COUNTER sy-vline 
WA_/GBHCM/S_MA_LA_LEAVE_REQUEST2_STR-TASK_DEF_ID sy-vline 
WA_/GBHCM/S_MA_LA_LEAVE_REQUEST2_STR-CURR_BALANCE sy-vline 
WA_/GBHCM/S_MA_LA_LEAVE_REQUEST2_STR-CURR_BAL_TIMEUNIT sy-vline 
WA_/GBHCM/S_MA_LA_LEAVE_REQUEST2_STR-CURR_BALANCE_TU_CODE sy-vline 
WA_/GBHCM/S_MA_LA_LEAVE_REQUEST2_STR-CURR_BAL_WARNING sy-vline 
WA_/GBHCM/S_MA_LA_LEAVE_REQUEST2_STR-CALC_OVERLAP sy-vline      INTO ld_text SEPARATED BY SPACE.

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