ABAP Select data from SAP table E1HR_ITC into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP E1HR_ITC 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 E1HR_ITC. 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 E1HR_ITC 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_E1HR_ITC TYPE STANDARD TABLE OF E1HR_ITC,
      WA_E1HR_ITC TYPE E1HR_ITC,
      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: <E1HR_ITC> TYPE E1HR_ITC.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_E1HR_ITC.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM E1HR_ITC
  INTO TABLE IT_E1HR_ITC.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM E1HR_ITC
*  INTO TABLE @DATA(IT_E1HR_ITC2).
*--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_E1HR_ITC INDEX 1 INTO DATA(WA_E1HR_ITC2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_E1HR_ITC ASSIGNING <E1HR_ITC>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<E1HR_ITC>-BEGDA = 1.
<E1HR_ITC>-ENDDA = 1.
<E1HR_ITC>-ANNOF = 1.
<E1HR_ITC>-COFIS = 1.
<E1HR_ITC>-CORIT = 1.

ENDLOOP.

LOOP AT IT_E1HR_ITC INTO WA_E1HR_ITC.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_E1HR_ITC-ITWAE, sy-vline,
  WA_E1HR_ITC-IMTIR, sy-vline,
  WA_E1HR_ITC-IMTSS, sy-vline,
  WA_E1HR_ITC-ACTSE, sy-vline,
  WA_E1HR_ITC-IMRIR, sy-vline,
  WA_E1HR_ITC-IMRSS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_E1HR_ITC 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_E1HR_ITC 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_E1HR_ITC INTO WA_E1HR_ITC.


*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_E1HR_ITC_STR, 
BEGDA TYPE STRING,
ENDDA TYPE STRING,
ANNOF TYPE STRING,
COFIS TYPE STRING,
CORIT TYPE STRING,
ITWAE TYPE STRING,
IMTIR TYPE STRING,
IMTSS TYPE STRING,
ACTSE TYPE STRING,
IMRIR TYPE STRING,
IMRSS TYPE STRING,
RAAC1 TYPE STRING,
RAAC2 TYPE STRING,
NRATE TYPE STRING,
CRED1 TYPE STRING,
IMTRD TYPE STRING,
CREC1 TYPE STRING,
IMTRC TYPE STRING,
IMTRT TYPE STRING,
CRED2 TYPE STRING,
IMRRD TYPE STRING,
CREC2 TYPE STRING,
IMRRC TYPE STRING,
IMRRT TYPE STRING,
ACTSD TYPE STRING,
ACTSC TYPE STRING,
CELD1 TYPE STRING,
IMTCD TYPE STRING,
CELC1 TYPE STRING,
IMTCC TYPE STRING,
IMTCT TYPE STRING,
CELD2 TYPE STRING,
IMRCD TYPE STRING,
CELC2 TYPE STRING,
IMRCC TYPE STRING,
IMRCT TYPE STRING,
ENDDATA TYPE STRING,
RAAC1D TYPE STRING,
RAAC1C TYPE STRING,
RAAC2D TYPE STRING,
RAAC2C TYPE STRING,END OF T_EKKO_STR.
DATA: WA_E1HR_ITC_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_E1HR_ITC_STR-BEGDA sy-vline 
WA_E1HR_ITC_STR-ENDDA sy-vline 
WA_E1HR_ITC_STR-ANNOF sy-vline 
WA_E1HR_ITC_STR-COFIS sy-vline 
WA_E1HR_ITC_STR-CORIT sy-vline 
WA_E1HR_ITC_STR-ITWAE sy-vline 
WA_E1HR_ITC_STR-IMTIR sy-vline 
WA_E1HR_ITC_STR-IMTSS sy-vline 
WA_E1HR_ITC_STR-ACTSE sy-vline 
WA_E1HR_ITC_STR-IMRIR sy-vline 
WA_E1HR_ITC_STR-IMRSS sy-vline 
WA_E1HR_ITC_STR-RAAC1 sy-vline 
WA_E1HR_ITC_STR-RAAC2 sy-vline 
WA_E1HR_ITC_STR-NRATE sy-vline 
WA_E1HR_ITC_STR-CRED1 sy-vline 
WA_E1HR_ITC_STR-IMTRD sy-vline 
WA_E1HR_ITC_STR-CREC1 sy-vline 
WA_E1HR_ITC_STR-IMTRC sy-vline 
WA_E1HR_ITC_STR-IMTRT sy-vline 
WA_E1HR_ITC_STR-CRED2 sy-vline 
WA_E1HR_ITC_STR-IMRRD sy-vline 
WA_E1HR_ITC_STR-CREC2 sy-vline 
WA_E1HR_ITC_STR-IMRRC sy-vline 
WA_E1HR_ITC_STR-IMRRT sy-vline 
WA_E1HR_ITC_STR-ACTSD sy-vline 
WA_E1HR_ITC_STR-ACTSC sy-vline 
WA_E1HR_ITC_STR-CELD1 sy-vline 
WA_E1HR_ITC_STR-IMTCD sy-vline 
WA_E1HR_ITC_STR-CELC1 sy-vline 
WA_E1HR_ITC_STR-IMTCC sy-vline 
WA_E1HR_ITC_STR-IMTCT sy-vline 
WA_E1HR_ITC_STR-CELD2 sy-vline 
WA_E1HR_ITC_STR-IMRCD sy-vline 
WA_E1HR_ITC_STR-CELC2 sy-vline 
WA_E1HR_ITC_STR-IMRCC sy-vline 
WA_E1HR_ITC_STR-IMRCT sy-vline 
WA_E1HR_ITC_STR-ENDDATA sy-vline 
WA_E1HR_ITC_STR-RAAC1D sy-vline 
WA_E1HR_ITC_STR-RAAC1C sy-vline 
WA_E1HR_ITC_STR-RAAC2D sy-vline 
WA_E1HR_ITC_STR-RAAC2C sy-vline      INTO ld_text SEPARATED BY SPACE.

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