ABAP Select data from SAP table YTEL01_OBJ into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP YTEL01_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 YTEL01_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 YTEL01_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_YTEL01_OBJ TYPE STANDARD TABLE OF YTEL01_OBJ,
      WA_YTEL01_OBJ TYPE YTEL01_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: <YTEL01_OBJ> TYPE YTEL01_OBJ.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_YTEL01_OBJ.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM YTEL01_OBJ
  INTO TABLE IT_YTEL01_OBJ.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM YTEL01_OBJ
*  INTO TABLE @DATA(IT_YTEL01_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_YTEL01_OBJ INDEX 1 INTO DATA(WA_YTEL01_OBJ2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_YTEL01_OBJ ASSIGNING <YTEL01_OBJ>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<YTEL01_OBJ>-MANDT = 1.
<YTEL01_OBJ>-IMPORT_YEAR = 1.
<YTEL01_OBJ>-CASE_ID = 1.
<YTEL01_OBJ>-CASE_VERS = 1.
<YTEL01_OBJ>-TRI_OBJ_TYPE = 1.

ENDLOOP.

LOOP AT IT_YTEL01_OBJ INTO WA_YTEL01_OBJ.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_YTEL01_OBJ-TRI_OBJ_ID_EXT, sy-vline,
  WA_YTEL01_OBJ-ZZMODELL, sy-vline,
  WA_YTEL01_OBJ-ZZANZ, sy-vline,
  WA_YTEL01_OBJ-ZZVERTTYP, sy-vline,
  WA_YTEL01_OBJ-ZZUMSATZ, sy-vline,
  WA_YTEL01_OBJ-ZZWAERS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_YTEL01_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_YTEL01_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_YTEL01_OBJ INTO WA_YTEL01_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_YTEL01_OBJ-CASE_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_YTEL01_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_YTEL01_OBJ-TRI_OBJ_TYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_YTEL01_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_YTEL01_OBJ-TRI_OBJ_ID_EXT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_YTEL01_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_YTEL01_OBJ-TRI_OBJ_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_YTEL01_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_YTEL01_OBJ-PARENT_TYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_YTEL01_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_YTEL01_OBJ-PARENT_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_YTEL01_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_YTEL01_OBJ-PARENT_ID_EXT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_YTEL01_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_YTEL01_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,
ZZMODELL TYPE STRING,
ZZANZ TYPE STRING,
ZZVERTTYP TYPE STRING,
ZZUMSATZ TYPE STRING,
ZZWAERS TYPE STRING,
ZZME TYPE STRING,
ZZSPARTE TYPE STRING,
ZZSTOPS TYPE STRING,
ZZAUFMENG TYPE STRING,
ZZLASTKZ TYPE STRING,
ZZYTEL01_MANU TYPE STRING,
ZZYTEL01_MODELL TYPE STRING,
ZZYTEL01_IMEINO TYPE STRING,
ZZYTEL01_PIECES TYPE STRING,
ZZYTEL01_CLASS TYPE STRING,
ZZYTEL01_UNIT TYPE STRING,
ZZYTEL01_NAME TYPE STRING,
ZZYTEL01_TELNO TYPE STRING,
ZZYTEL01_SIMMNO TYPE STRING,
ZZYTEL01_RATEPL TYPE STRING,
ZZYTEL01_ROAMIN TYPE STRING,
ZZYTEL01_ADDSER TYPE STRING,
ZTS_PRODUCT TYPE STRING,
ZTS_EPP_L3 TYPE STRING,
ZTS_CLIENT TYPE STRING,
ZTS_MANAGER_R TYPE STRING,
ZTS_SUPPORT_R TYPE STRING,
ZTS_TERM TYPE STRING,
ZTS_DISCOUNT TYPE STRING,
ZTS_LISTPRICE TYPE STRING,
ZTS_MARGIN TYPE STRING,
ZTS_TNN TYPE STRING,
ZTS_CONTRVALUE TYPE STRING,
ZTS_ADJVALTOT TYPE STRING,
ZTS_REP_R 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_YTEL01_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_YTEL01_OBJ_STR-MANDT sy-vline 
WA_YTEL01_OBJ_STR-IMPORT_YEAR sy-vline 
WA_YTEL01_OBJ_STR-CASE_ID sy-vline 
WA_YTEL01_OBJ_STR-CASE_VERS sy-vline 
WA_YTEL01_OBJ_STR-TRI_OBJ_TYPE sy-vline 
WA_YTEL01_OBJ_STR-TRI_OBJ_ID_EXT sy-vline 
WA_YTEL01_OBJ_STR-ZZMODELL sy-vline 
WA_YTEL01_OBJ_STR-ZZANZ sy-vline 
WA_YTEL01_OBJ_STR-ZZVERTTYP sy-vline 
WA_YTEL01_OBJ_STR-ZZUMSATZ sy-vline 
WA_YTEL01_OBJ_STR-ZZWAERS sy-vline 
WA_YTEL01_OBJ_STR-ZZME sy-vline 
WA_YTEL01_OBJ_STR-ZZSPARTE sy-vline 
WA_YTEL01_OBJ_STR-ZZSTOPS sy-vline 
WA_YTEL01_OBJ_STR-ZZAUFMENG sy-vline 
WA_YTEL01_OBJ_STR-ZZLASTKZ sy-vline 
WA_YTEL01_OBJ_STR-ZZYTEL01_MANU sy-vline 
WA_YTEL01_OBJ_STR-ZZYTEL01_MODELL sy-vline 
WA_YTEL01_OBJ_STR-ZZYTEL01_IMEINO sy-vline 
WA_YTEL01_OBJ_STR-ZZYTEL01_PIECES sy-vline 
WA_YTEL01_OBJ_STR-ZZYTEL01_CLASS sy-vline 
WA_YTEL01_OBJ_STR-ZZYTEL01_UNIT sy-vline 
WA_YTEL01_OBJ_STR-ZZYTEL01_NAME sy-vline 
WA_YTEL01_OBJ_STR-ZZYTEL01_TELNO sy-vline 
WA_YTEL01_OBJ_STR-ZZYTEL01_SIMMNO sy-vline 
WA_YTEL01_OBJ_STR-ZZYTEL01_RATEPL sy-vline 
WA_YTEL01_OBJ_STR-ZZYTEL01_ROAMIN sy-vline 
WA_YTEL01_OBJ_STR-ZZYTEL01_ADDSER sy-vline 
WA_YTEL01_OBJ_STR-ZTS_PRODUCT sy-vline 
WA_YTEL01_OBJ_STR-ZTS_EPP_L3 sy-vline 
WA_YTEL01_OBJ_STR-ZTS_CLIENT sy-vline 
WA_YTEL01_OBJ_STR-ZTS_MANAGER_R sy-vline 
WA_YTEL01_OBJ_STR-ZTS_SUPPORT_R sy-vline 
WA_YTEL01_OBJ_STR-ZTS_TERM sy-vline 
WA_YTEL01_OBJ_STR-ZTS_DISCOUNT sy-vline 
WA_YTEL01_OBJ_STR-ZTS_LISTPRICE sy-vline 
WA_YTEL01_OBJ_STR-ZTS_MARGIN sy-vline 
WA_YTEL01_OBJ_STR-ZTS_TNN sy-vline 
WA_YTEL01_OBJ_STR-ZTS_CONTRVALUE sy-vline 
WA_YTEL01_OBJ_STR-ZTS_ADJVALTOT sy-vline 
WA_YTEL01_OBJ_STR-ZTS_REP_R sy-vline 
WA_YTEL01_OBJ_STR-TRI_OBJ_ID sy-vline 
WA_YTEL01_OBJ_STR-TRI_OBJ_CHGTYP sy-vline 
WA_YTEL01_OBJ_STR-FLG_CANCEL_OBJ sy-vline 
WA_YTEL01_OBJ_STR-FLG_CANCEL_VERS sy-vline 
WA_YTEL01_OBJ_STR-STATUS_VERSION sy-vline 
WA_YTEL01_OBJ_STR-STATUS_WORK sy-vline 
WA_YTEL01_OBJ_STR-PARENT_TYPE sy-vline 
WA_YTEL01_OBJ_STR-PARENT_ID sy-vline 
WA_YTEL01_OBJ_STR-PARENT_ID_EXT sy-vline 
WA_YTEL01_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.