ABAP Select data from SAP table YHITEC_OBJ into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM YHITEC_OBJ
*  INTO TABLE @DATA(IT_YHITEC_OBJ2).
*--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_YHITEC_OBJ INDEX 1 INTO DATA(WA_YHITEC_OBJ2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<YHITEC_OBJ>-MANDT = 1.
<YHITEC_OBJ>-IMPORT_YEAR = 1.
<YHITEC_OBJ>-CASE_ID = 1.
<YHITEC_OBJ>-CASE_VERS = 1.
<YHITEC_OBJ>-TRI_OBJ_TYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_YHITEC_OBJ-TRI_OBJ_ID_EXT, sy-vline,
  WA_YHITEC_OBJ-INDUSTRY, sy-vline,
  WA_YHITEC_OBJ-CATEGORY_ID, sy-vline,
  WA_YHITEC_OBJ-INCENTIVE_BASIS, sy-vline,
  WA_YHITEC_OBJ-COMM_BASIS_VALUE, sy-vline,
  WA_YHITEC_OBJ-GUID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_YHITEC_OBJ 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_YHITEC_OBJ 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_YHITEC_OBJ INTO WA_YHITEC_OBJ.


*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 CASE_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_YHITEC_OBJ-CASE_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_YHITEC_OBJ-CASE_ID.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field PARENT_ID_EXT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_YHITEC_OBJ-PARENT_ID_EXT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_YHITEC_OBJ-PARENT_ID_EXT.
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_YHITEC_OBJ_STR, 
MANDT TYPE STRING,
IMPORT_YEAR TYPE STRING,
CASE_ID TYPE STRING,
CASE_VERS TYPE STRING,
TRI_OBJ_TYPE TYPE STRING,
TRI_OBJ_ID_EXT TYPE STRING,
INDUSTRY TYPE STRING,
CATEGORY_ID TYPE STRING,
INCENTIVE_BASIS TYPE STRING,
COMM_BASIS_VALUE TYPE STRING,
GUID TYPE STRING,
ITEM_GUID TYPE STRING,
CURRENCY TYPE STRING,
COMM_TRI_DATE TYPE STRING,
ORDER_QTY TYPE STRING,
PRODUCT_ID TYPE STRING,
HITEC_COUNTRY TYPE STRING,
TRI_OBJ_ID TYPE STRING,
TRI_OBJ_CHGTYP TYPE STRING,
FLG_CANCEL_OBJ TYPE STRING,
FLG_CANCEL_VERS TYPE STRING,
STATUS_VERSION TYPE STRING,
STATUS_WORK TYPE STRING,
PARENT_TYPE TYPE STRING,
PARENT_ID TYPE STRING,
PARENT_ID_EXT TYPE STRING,
FLG_REVERSED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_YHITEC_OBJ_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_YHITEC_OBJ_STR-MANDT sy-vline 
WA_YHITEC_OBJ_STR-IMPORT_YEAR sy-vline 
WA_YHITEC_OBJ_STR-CASE_ID sy-vline 
WA_YHITEC_OBJ_STR-CASE_VERS sy-vline 
WA_YHITEC_OBJ_STR-TRI_OBJ_TYPE sy-vline 
WA_YHITEC_OBJ_STR-TRI_OBJ_ID_EXT sy-vline 
WA_YHITEC_OBJ_STR-INDUSTRY sy-vline 
WA_YHITEC_OBJ_STR-CATEGORY_ID sy-vline 
WA_YHITEC_OBJ_STR-INCENTIVE_BASIS sy-vline 
WA_YHITEC_OBJ_STR-COMM_BASIS_VALUE sy-vline 
WA_YHITEC_OBJ_STR-GUID sy-vline 
WA_YHITEC_OBJ_STR-ITEM_GUID sy-vline 
WA_YHITEC_OBJ_STR-CURRENCY sy-vline 
WA_YHITEC_OBJ_STR-COMM_TRI_DATE sy-vline 
WA_YHITEC_OBJ_STR-ORDER_QTY sy-vline 
WA_YHITEC_OBJ_STR-PRODUCT_ID sy-vline 
WA_YHITEC_OBJ_STR-HITEC_COUNTRY sy-vline 
WA_YHITEC_OBJ_STR-TRI_OBJ_ID sy-vline 
WA_YHITEC_OBJ_STR-TRI_OBJ_CHGTYP sy-vline 
WA_YHITEC_OBJ_STR-FLG_CANCEL_OBJ sy-vline 
WA_YHITEC_OBJ_STR-FLG_CANCEL_VERS sy-vline 
WA_YHITEC_OBJ_STR-STATUS_VERSION sy-vline 
WA_YHITEC_OBJ_STR-STATUS_WORK sy-vline 
WA_YHITEC_OBJ_STR-PARENT_TYPE sy-vline 
WA_YHITEC_OBJ_STR-PARENT_ID sy-vline 
WA_YHITEC_OBJ_STR-PARENT_ID_EXT sy-vline 
WA_YHITEC_OBJ_STR-FLG_REVERSED sy-vline      INTO ld_text SEPARATED BY SPACE.

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