ABAP Select data from SAP table U_17170 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP U_17170 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 U_17170. 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 U_17170 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_U_17170 TYPE STANDARD TABLE OF U_17170,
      WA_U_17170 TYPE U_17170,
      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: <U_17170> TYPE U_17170.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_U_17170.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM U_17170
  INTO TABLE IT_U_17170.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM U_17170
*  INTO TABLE @DATA(IT_U_171702).
*--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_U_17170 INDEX 1 INTO DATA(WA_U_171702).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_U_17170 ASSIGNING <U_17170>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<U_17170>-MANDT = 1.
<U_17170>-BAREA = 1.
<U_17170>-BPLAN = 1.
<U_17170>-ENDDA = 1.
<U_17170>-BEGDA = 1.

ENDLOOP.

LOOP AT IT_U_17170 INTO WA_U_17170.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_U_17170-PLTYP, sy-vline,
  WA_U_17170-CRENR, sy-vline,
  WA_U_17170-PLNNO, sy-vline,
  WA_U_17170-PLSTA, sy-vline,
  WA_U_17170-COBOK, sy-vline,
  WA_U_17170-IMPUT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_U_17170 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_U_17170 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_U_17170 INTO WA_U_17170.


*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 ISOLA, internal->external for field LANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_U_17170-LANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_17170-LANGU.
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_U_17170_STR, 
MANDT TYPE STRING,
BAREA TYPE STRING,
BPLAN TYPE STRING,
ENDDA TYPE STRING,
BEGDA TYPE STRING,
PLTYP TYPE STRING,
CRENR TYPE STRING,
PLNNO TYPE STRING,
PLSTA TYPE STRING,
COBOK TYPE STRING,
IMPUT TYPE STRING,
ERWTY TYPE STRING,
EEWTY TYPE STRING,
BSWTY TYPE STRING,
DEFER TYPE STRING,
FLXCR TYPE STRING,
GTLIF TYPE STRING,
PRWTY TYPE STRING,
TBWTY TYPE STRING,
LANGU TYPE STRING,
LTEXT TYPE STRING,
STEXT TYPE STRING,
DEPYN TYPE STRING,
BENYN TYPE STRING,
EEBYN TYPE STRING,
CTGYN TYPE STRING,
INVYN TYPE STRING,
PREYN TYPE STRING,
PSTYN TYPE STRING,
CSTYN TYPE STRING,
CRDYN TYPE STRING,
COVYN TYPE STRING,
EECYN TYPE STRING,
ERCYN TYPE STRING,
VESYN TYPE STRING,
CSTCR TYPE STRING,
PTWTY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_U_17170_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_U_17170_STR-MANDT sy-vline 
WA_U_17170_STR-BAREA sy-vline 
WA_U_17170_STR-BPLAN sy-vline 
WA_U_17170_STR-ENDDA sy-vline 
WA_U_17170_STR-BEGDA sy-vline 
WA_U_17170_STR-PLTYP sy-vline 
WA_U_17170_STR-CRENR sy-vline 
WA_U_17170_STR-PLNNO sy-vline 
WA_U_17170_STR-PLSTA sy-vline 
WA_U_17170_STR-COBOK sy-vline 
WA_U_17170_STR-IMPUT sy-vline 
WA_U_17170_STR-ERWTY sy-vline 
WA_U_17170_STR-EEWTY sy-vline 
WA_U_17170_STR-BSWTY sy-vline 
WA_U_17170_STR-DEFER sy-vline 
WA_U_17170_STR-FLXCR sy-vline 
WA_U_17170_STR-GTLIF sy-vline 
WA_U_17170_STR-PRWTY sy-vline 
WA_U_17170_STR-TBWTY sy-vline 
WA_U_17170_STR-LANGU sy-vline 
WA_U_17170_STR-LTEXT sy-vline 
WA_U_17170_STR-STEXT sy-vline 
WA_U_17170_STR-DEPYN sy-vline 
WA_U_17170_STR-BENYN sy-vline 
WA_U_17170_STR-EEBYN sy-vline 
WA_U_17170_STR-CTGYN sy-vline 
WA_U_17170_STR-INVYN sy-vline 
WA_U_17170_STR-PREYN sy-vline 
WA_U_17170_STR-PSTYN sy-vline 
WA_U_17170_STR-CSTYN sy-vline 
WA_U_17170_STR-CRDYN sy-vline 
WA_U_17170_STR-COVYN sy-vline 
WA_U_17170_STR-EECYN sy-vline 
WA_U_17170_STR-ERCYN sy-vline 
WA_U_17170_STR-VESYN sy-vline 
WA_U_17170_STR-CSTCR sy-vline 
WA_U_17170_STR-PTWTY sy-vline      INTO ld_text SEPARATED BY SPACE.

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