ABAP Select data from SAP table HRECM00_EE_CHANGE_TRACKING_UI into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP HRECM00_EE_CHANGE_TRACKING_UI 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 HRECM00_EE_CHANGE_TRACKING_UI. 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 HRECM00_EE_CHANGE_TRACKING_UI 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_HRECM00_EE_CHANGE_TRACKING_UI TYPE STANDARD TABLE OF HRECM00_EE_CHANGE_TRACKING_UI,
      WA_HRECM00_EE_CHANGE_TRACKING_UI TYPE HRECM00_EE_CHANGE_TRACKING_UI,
      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: <HRECM00_EE_CHANGE_TRACKING_UI> TYPE HRECM00_EE_CHANGE_TRACKING_UI.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_HRECM00_EE_CHANGE_TRACKING_UI.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM HRECM00_EE_CHANGE_TRACKING_UI
  INTO TABLE IT_HRECM00_EE_CHANGE_TRACKING_UI.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HRECM00_EE_CHANGE_TRACKING_UI
*  INTO TABLE @DATA(IT_HRECM00_EE_CHANGE_TRACKING_UI2).
*--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_HRECM00_EE_CHANGE_TRACKING_UI INDEX 1 INTO DATA(WA_HRECM00_EE_CHANGE_TRACKING_UI2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_HRECM00_EE_CHANGE_TRACKING_UI ASSIGNING <HRECM00_EE_CHANGE_TRACKING_UI>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HRECM00_EE_CHANGE_TRACKING_UI>-GUID = 1.
<HRECM00_EE_CHANGE_TRACKING_UI>-DISP_GROUP = 1.
<HRECM00_EE_CHANGE_TRACKING_UI>-LFDNR = 1.
<HRECM00_EE_CHANGE_TRACKING_UI>-EE_NAME = 1.
<HRECM00_EE_CHANGE_TRACKING_UI>-PERNR = 1.

ENDLOOP.

LOOP AT IT_HRECM00_EE_CHANGE_TRACKING_UI INTO WA_HRECM00_EE_CHANGE_TRACKING_UI.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HRECM00_EE_CHANGE_TRACKING_UI-ORGUNIT_ID, sy-vline,
  WA_HRECM00_EE_CHANGE_TRACKING_UI-ORGUNIT, sy-vline,
  WA_HRECM00_EE_CHANGE_TRACKING_UI-PLANNINGUNIT_ID, sy-vline,
  WA_HRECM00_EE_CHANGE_TRACKING_UI-PLANNINGUNIT, sy-vline,
  WA_HRECM00_EE_CHANGE_TRACKING_UI-PLANNING_MANAGER, sy-vline,
  WA_HRECM00_EE_CHANGE_TRACKING_UI-CH_BEG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HRECM00_EE_CHANGE_TRACKING_UI 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_HRECM00_EE_CHANGE_TRACKING_UI 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_HRECM00_EE_CHANGE_TRACKING_UI INTO WA_HRECM00_EE_CHANGE_TRACKING_UI.


*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_HRECM00_EE_CHANGE_TRACKING_UI_STR, 
GUID TYPE STRING,
DISP_GROUP TYPE STRING,
LFDNR TYPE STRING,
EE_NAME TYPE STRING,
PERNR TYPE STRING,
ORGUNIT_ID TYPE STRING,
ORGUNIT TYPE STRING,
PLANNINGUNIT_ID TYPE STRING,
PLANNINGUNIT TYPE STRING,
PLANNING_MANAGER TYPE STRING,
CH_BEG TYPE STRING,
CH_END TYPE STRING,
CH_USR TYPE STRING,
CH_USR_ENAME TYPE STRING,
CH_ACT TYPE STRING,
CH_ACT_TEXT TYPE STRING,
ITXEX TYPE STRING,
EFFDT TYPE STRING,
SEQNR TYPE STRING,
CSTAT_TEXT TYPE STRING,
CAREA TYPE STRING,
CITEM TYPE STRING,
CSTAT TYPE STRING,
BSSAL TYPE STRING,
CPAMT TYPE STRING,
CPPCT TYPE STRING,
CPNUM TYPE STRING,
CURRE TYPE STRING,
STKUN TYPE STRING,
XHOUR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HRECM00_EE_CHANGE_TRACKING_UI_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_HRECM00_EE_CHANGE_TRACKING_UI_STR-GUID sy-vline 
WA_HRECM00_EE_CHANGE_TRACKING_UI_STR-DISP_GROUP sy-vline 
WA_HRECM00_EE_CHANGE_TRACKING_UI_STR-LFDNR sy-vline 
WA_HRECM00_EE_CHANGE_TRACKING_UI_STR-EE_NAME sy-vline 
WA_HRECM00_EE_CHANGE_TRACKING_UI_STR-PERNR sy-vline 
WA_HRECM00_EE_CHANGE_TRACKING_UI_STR-ORGUNIT_ID sy-vline 
WA_HRECM00_EE_CHANGE_TRACKING_UI_STR-ORGUNIT sy-vline 
WA_HRECM00_EE_CHANGE_TRACKING_UI_STR-PLANNINGUNIT_ID sy-vline 
WA_HRECM00_EE_CHANGE_TRACKING_UI_STR-PLANNINGUNIT sy-vline 
WA_HRECM00_EE_CHANGE_TRACKING_UI_STR-PLANNING_MANAGER sy-vline 
WA_HRECM00_EE_CHANGE_TRACKING_UI_STR-CH_BEG sy-vline 
WA_HRECM00_EE_CHANGE_TRACKING_UI_STR-CH_END sy-vline 
WA_HRECM00_EE_CHANGE_TRACKING_UI_STR-CH_USR sy-vline 
WA_HRECM00_EE_CHANGE_TRACKING_UI_STR-CH_USR_ENAME sy-vline 
WA_HRECM00_EE_CHANGE_TRACKING_UI_STR-CH_ACT sy-vline 
WA_HRECM00_EE_CHANGE_TRACKING_UI_STR-CH_ACT_TEXT sy-vline 
WA_HRECM00_EE_CHANGE_TRACKING_UI_STR-ITXEX sy-vline 
WA_HRECM00_EE_CHANGE_TRACKING_UI_STR-EFFDT sy-vline 
WA_HRECM00_EE_CHANGE_TRACKING_UI_STR-SEQNR sy-vline 
WA_HRECM00_EE_CHANGE_TRACKING_UI_STR-CSTAT_TEXT sy-vline 
WA_HRECM00_EE_CHANGE_TRACKING_UI_STR-CAREA sy-vline 
WA_HRECM00_EE_CHANGE_TRACKING_UI_STR-CITEM sy-vline 
WA_HRECM00_EE_CHANGE_TRACKING_UI_STR-CSTAT sy-vline 
WA_HRECM00_EE_CHANGE_TRACKING_UI_STR-BSSAL sy-vline 
WA_HRECM00_EE_CHANGE_TRACKING_UI_STR-CPAMT sy-vline 
WA_HRECM00_EE_CHANGE_TRACKING_UI_STR-CPPCT sy-vline 
WA_HRECM00_EE_CHANGE_TRACKING_UI_STR-CPNUM sy-vline 
WA_HRECM00_EE_CHANGE_TRACKING_UI_STR-CURRE sy-vline 
WA_HRECM00_EE_CHANGE_TRACKING_UI_STR-STKUN sy-vline 
WA_HRECM00_EE_CHANGE_TRACKING_UI_STR-XHOUR sy-vline      INTO ld_text SEPARATED BY SPACE.

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