ABAP Select data from SAP table T7EHS00_CAL_FAV into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP T7EHS00_CAL_FAV 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 T7EHS00_CAL_FAV. 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 T7EHS00_CAL_FAV 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_T7EHS00_CAL_FAV TYPE STANDARD TABLE OF T7EHS00_CAL_FAV,
      WA_T7EHS00_CAL_FAV TYPE T7EHS00_CAL_FAV,
      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: <T7EHS00_CAL_FAV> TYPE T7EHS00_CAL_FAV.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_T7EHS00_CAL_FAV.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM T7EHS00_CAL_FAV
  INTO TABLE IT_T7EHS00_CAL_FAV.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM T7EHS00_CAL_FAV
*  INTO TABLE @DATA(IT_T7EHS00_CAL_FAV2).
*--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_T7EHS00_CAL_FAV INDEX 1 INTO DATA(WA_T7EHS00_CAL_FAV2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_T7EHS00_CAL_FAV ASSIGNING <T7EHS00_CAL_FAV>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<T7EHS00_CAL_FAV>-MANDT = 1.
<T7EHS00_CAL_FAV>-RECN = 1.
<T7EHS00_CAL_FAV>-ACTN = 1.
<T7EHS00_CAL_FAV>-AENNR = 1.
<T7EHS00_CAL_FAV>-CRNAM = 1.

ENDLOOP.

LOOP AT IT_T7EHS00_CAL_FAV INTO WA_T7EHS00_CAL_FAV.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_T7EHS00_CAL_FAV-CRDTIMESTAMP, sy-vline,
  WA_T7EHS00_CAL_FAV-UPDNAM, sy-vline,
  WA_T7EHS00_CAL_FAV-UPDTIMESTAMP, sy-vline,
  WA_T7EHS00_CAL_FAV-UNAME, sy-vline,
  WA_T7EHS00_CAL_FAV-OWNER, sy-vline,
  WA_T7EHS00_CAL_FAV-OWNER_NAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_T7EHS00_CAL_FAV 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_T7EHS00_CAL_FAV 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_T7EHS00_CAL_FAV INTO WA_T7EHS00_CAL_FAV.


*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.

*Conversion exit ALPHA, internal->external for field RECN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T7EHS00_CAL_FAV-RECN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T7EHS00_CAL_FAV-RECN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ACTN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T7EHS00_CAL_FAV-ACTN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T7EHS00_CAL_FAV-ACTN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AENNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T7EHS00_CAL_FAV-AENNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T7EHS00_CAL_FAV-AENNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_T7EHS00_CAL_FAV-LOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_T7EHS00_CAL_FAV-LOGSYS.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

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

TYPES: BEGIN OF T_T7EHS00_CAL_FAV_STR, 
MANDT TYPE STRING,
RECN TYPE STRING,
ACTN TYPE STRING,
AENNR TYPE STRING,
CRNAM TYPE STRING,
CRDTIMESTAMP TYPE STRING,
UPDNAM TYPE STRING,
UPDTIMESTAMP TYPE STRING,
UNAME TYPE STRING,
OWNER TYPE STRING,
OWNER_NAME TYPE STRING,
LOGSYS TYPE STRING,
OBJTYPE TYPE STRING,
OBJKEY TYPE STRING,
DEFAULT_FLAG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_T7EHS00_CAL_FAV_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_T7EHS00_CAL_FAV_STR-MANDT sy-vline 
WA_T7EHS00_CAL_FAV_STR-RECN sy-vline 
WA_T7EHS00_CAL_FAV_STR-ACTN sy-vline 
WA_T7EHS00_CAL_FAV_STR-AENNR sy-vline 
WA_T7EHS00_CAL_FAV_STR-CRNAM sy-vline 
WA_T7EHS00_CAL_FAV_STR-CRDTIMESTAMP sy-vline 
WA_T7EHS00_CAL_FAV_STR-UPDNAM sy-vline 
WA_T7EHS00_CAL_FAV_STR-UPDTIMESTAMP sy-vline 
WA_T7EHS00_CAL_FAV_STR-UNAME sy-vline 
WA_T7EHS00_CAL_FAV_STR-OWNER sy-vline 
WA_T7EHS00_CAL_FAV_STR-OWNER_NAME sy-vline 
WA_T7EHS00_CAL_FAV_STR-LOGSYS sy-vline 
WA_T7EHS00_CAL_FAV_STR-OBJTYPE sy-vline 
WA_T7EHS00_CAL_FAV_STR-OBJKEY sy-vline 
WA_T7EHS00_CAL_FAV_STR-DEFAULT_FLAG sy-vline      INTO ld_text SEPARATED BY SPACE.

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