ABAP Select data from SAP table HRCM_LTI into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM HRCM_LTI
*  INTO TABLE @DATA(IT_HRCM_LTI2).
*--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_HRCM_LTI INDEX 1 INTO DATA(WA_HRCM_LTI2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<HRCM_LTI>-GDATE = 1.
<HRCM_LTI>-EDATE = 1.
<HRCM_LTI>-CTYPE = 1.
<HRCM_LTI>-CAREA = 1.
<HRCM_LTI>-WGTYP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_HRCM_LTI-SHARS, sy-vline,
  WA_HRCM_LTI-EXERC, sy-vline,
  WA_HRCM_LTI-GSTAT, sy-vline,
  WA_HRCM_LTI-GPRIC, sy-vline,
  WA_HRCM_LTI-GFMV, sy-vline,
  WA_HRCM_LTI-WAERS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_HRCM_LTI 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_HRCM_LTI 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_HRCM_LTI INTO WA_HRCM_LTI.


*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_HRCM_LTI_STR, 
GDATE TYPE STRING,
EDATE TYPE STRING,
CTYPE TYPE STRING,
CAREA TYPE STRING,
WGTYP TYPE STRING,
SHARS TYPE STRING,
EXERC TYPE STRING,
GSTAT TYPE STRING,
GPRIC TYPE STRING,
GFMV TYPE STRING,
WAERS TYPE STRING,
PUTHR TYPE STRING,
PUTRG TYPE STRING,
PUMAX TYPE STRING,
LETYP TYPE STRING,
LEDAT TYPE STRING,
CAIND TYPE STRING,
EXDAT TYPE STRING,
EXMTH TYPE STRING,
EXFMV TYPE STRING,
TRGTA TYPE STRING,
SDATE TYPE STRING,
SSOLD TYPE STRING,
SFMV TYPE STRING,
LETYP1 TYPE STRING,
LEDAT1 TYPE STRING,
LETYP2 TYPE STRING,
LEDAT2 TYPE STRING,
TGPRIC TYPE STRING,
TGFMV TYPE STRING,
TEPRIC TYPE STRING,
TEXFMV TYPE STRING,
TSFMV TYPE STRING,
PAID TYPE STRING,
FWAER TYPE STRING,
ATEXT TYPE STRING,
EXERA TYPE STRING,
EXCSD TYPE STRING,
SBEGD TYPE STRING,
SENDD TYPE STRING,
VOIND TYPE STRING,
VUIND TYPE STRING,
EXPIR TYPE STRING,
VDATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_HRCM_LTI_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_HRCM_LTI_STR-GDATE sy-vline 
WA_HRCM_LTI_STR-EDATE sy-vline 
WA_HRCM_LTI_STR-CTYPE sy-vline 
WA_HRCM_LTI_STR-CAREA sy-vline 
WA_HRCM_LTI_STR-WGTYP sy-vline 
WA_HRCM_LTI_STR-SHARS sy-vline 
WA_HRCM_LTI_STR-EXERC sy-vline 
WA_HRCM_LTI_STR-GSTAT sy-vline 
WA_HRCM_LTI_STR-GPRIC sy-vline 
WA_HRCM_LTI_STR-GFMV sy-vline 
WA_HRCM_LTI_STR-WAERS sy-vline 
WA_HRCM_LTI_STR-PUTHR sy-vline 
WA_HRCM_LTI_STR-PUTRG sy-vline 
WA_HRCM_LTI_STR-PUMAX sy-vline 
WA_HRCM_LTI_STR-LETYP sy-vline 
WA_HRCM_LTI_STR-LEDAT sy-vline 
WA_HRCM_LTI_STR-CAIND sy-vline 
WA_HRCM_LTI_STR-EXDAT sy-vline 
WA_HRCM_LTI_STR-EXMTH sy-vline 
WA_HRCM_LTI_STR-EXFMV sy-vline 
WA_HRCM_LTI_STR-TRGTA sy-vline 
WA_HRCM_LTI_STR-SDATE sy-vline 
WA_HRCM_LTI_STR-SSOLD sy-vline 
WA_HRCM_LTI_STR-SFMV sy-vline 
WA_HRCM_LTI_STR-LETYP1 sy-vline 
WA_HRCM_LTI_STR-LEDAT1 sy-vline 
WA_HRCM_LTI_STR-LETYP2 sy-vline 
WA_HRCM_LTI_STR-LEDAT2 sy-vline 
WA_HRCM_LTI_STR-TGPRIC sy-vline 
WA_HRCM_LTI_STR-TGFMV sy-vline 
WA_HRCM_LTI_STR-TEPRIC sy-vline 
WA_HRCM_LTI_STR-TEXFMV sy-vline 
WA_HRCM_LTI_STR-TSFMV sy-vline 
WA_HRCM_LTI_STR-PAID sy-vline 
WA_HRCM_LTI_STR-FWAER sy-vline 
WA_HRCM_LTI_STR-ATEXT sy-vline 
WA_HRCM_LTI_STR-EXERA sy-vline 
WA_HRCM_LTI_STR-EXCSD sy-vline 
WA_HRCM_LTI_STR-SBEGD sy-vline 
WA_HRCM_LTI_STR-SENDD sy-vline 
WA_HRCM_LTI_STR-VOIND sy-vline 
WA_HRCM_LTI_STR-VUIND sy-vline 
WA_HRCM_LTI_STR-EXPIR sy-vline 
WA_HRCM_LTI_STR-VDATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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