ABAP Select data from SAP table U_27708 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP U_27708 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_27708. 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_27708 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_27708 TYPE STANDARD TABLE OF U_27708,
      WA_U_27708 TYPE U_27708,
      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_27708> TYPE U_27708.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_U_27708.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM U_27708
  INTO TABLE IT_U_27708.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM U_27708
*  INTO TABLE @DATA(IT_U_277082).
*--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_27708 INDEX 1 INTO DATA(WA_U_277082).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_U_27708 ASSIGNING <U_27708>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<U_27708>-MANDT = 1.
<U_27708>-PLVAR = 1.
<U_27708>-OTYPE = 1.
<U_27708>-OBJID = 1.
<U_27708>-RSIGN = 1.

ENDLOOP.

LOOP AT IT_U_27708 INTO WA_U_27708.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_U_27708-RELAT, sy-vline,
  WA_U_27708-BEGDA, sy-vline,
  WA_U_27708-ENDDA, sy-vline,
  WA_U_27708-VARYF, sy-vline,
  WA_U_27708-SEQNR, sy-vline,
  WA_U_27708-SCLAS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_U_27708 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_27708 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_27708 INTO WA_U_27708.


*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 KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_U_27708-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_27708-KOSTL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field REFDOCNO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_U_27708-REFDOCNO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_27708-REFDOCNO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_U_27708-UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_27708-UNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field BZGME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_U_27708-BZGME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_27708-BZGME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SCOSTCENTER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_U_27708-SCOSTCENTER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_27708-SCOSTCENTER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RCOSTCENTER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_U_27708-RCOSTCENTER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_27708-RCOSTCENTER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RORDER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_U_27708-RORDER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_27708-RORDER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RSALESORDER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_U_27708-RSALESORDER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_27708-RSALESORDER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSN, internal->external for field RWBSELEMENT
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_U_27708-RWBSELEMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_27708-RWBSELEMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PREVREFDOC
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_U_27708-PREVREFDOC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_27708-PREVREFDOC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSP, internal->external for field PSP_ELEMENT
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_U_27708-PSP_ELEMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_27708-PSP_ELEMENT.
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_27708_STR, 
MANDT TYPE STRING,
PLVAR TYPE STRING,
OTYPE TYPE STRING,
OBJID TYPE STRING,
RSIGN TYPE STRING,
RELAT TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
VARYF TYPE STRING,
SEQNR TYPE STRING,
SCLAS TYPE STRING,
SOBID TYPE STRING,
ADATANR TYPE STRING,
INTEX TYPE STRING,
KKOST TYPE STRING,
KWAER TYPE STRING,
KOKRS TYPE STRING,
KOSTL TYPE STRING,
REFDOCNO TYPE STRING,
REFDOCITEM TYPE STRING,
REFDOCSEQNR TYPE STRING,
DOCDATE TYPE STRING,
POSTINGDATE TYPE STRING,
DOCUNAME TYPE STRING,
EVENT TYPE STRING,
STATUS TYPE STRING,
DOCUMENT TYPE STRING,
PRICE TYPE STRING,
CURRENCY TYPE STRING,
QUANTITY TYPE STRING,
UNIT TYPE STRING,
BUNIT TYPE STRING,
BZGME TYPE STRING,
ACTIVITYTYPE TYPE STRING,
CONTROLLINGAREA TYPE STRING,
SCOSTCENTER TYPE STRING,
RCOSTCENTER TYPE STRING,
RORDER TYPE STRING,
RSALESORDER TYPE STRING,
RSALESITEM TYPE STRING,
RWBSELEMENT TYPE STRING,
DATESTAMP TYPE STRING,
TIMESTAMP TYPE STRING,
PREVREFDOC TYPE STRING,
PERCENTAGE TYPE STRING,
PSP_ELEMENT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_U_27708_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_27708_STR-MANDT sy-vline 
WA_U_27708_STR-PLVAR sy-vline 
WA_U_27708_STR-OTYPE sy-vline 
WA_U_27708_STR-OBJID sy-vline 
WA_U_27708_STR-RSIGN sy-vline 
WA_U_27708_STR-RELAT sy-vline 
WA_U_27708_STR-BEGDA sy-vline 
WA_U_27708_STR-ENDDA sy-vline 
WA_U_27708_STR-VARYF sy-vline 
WA_U_27708_STR-SEQNR sy-vline 
WA_U_27708_STR-SCLAS sy-vline 
WA_U_27708_STR-SOBID sy-vline 
WA_U_27708_STR-ADATANR sy-vline 
WA_U_27708_STR-INTEX sy-vline 
WA_U_27708_STR-KKOST sy-vline 
WA_U_27708_STR-KWAER sy-vline 
WA_U_27708_STR-KOKRS sy-vline 
WA_U_27708_STR-KOSTL sy-vline 
WA_U_27708_STR-REFDOCNO sy-vline 
WA_U_27708_STR-REFDOCITEM sy-vline 
WA_U_27708_STR-REFDOCSEQNR sy-vline 
WA_U_27708_STR-DOCDATE sy-vline 
WA_U_27708_STR-POSTINGDATE sy-vline 
WA_U_27708_STR-DOCUNAME sy-vline 
WA_U_27708_STR-EVENT sy-vline 
WA_U_27708_STR-STATUS sy-vline 
WA_U_27708_STR-DOCUMENT sy-vline 
WA_U_27708_STR-PRICE sy-vline 
WA_U_27708_STR-CURRENCY sy-vline 
WA_U_27708_STR-QUANTITY sy-vline 
WA_U_27708_STR-UNIT sy-vline 
WA_U_27708_STR-BUNIT sy-vline 
WA_U_27708_STR-BZGME sy-vline 
WA_U_27708_STR-ACTIVITYTYPE sy-vline 
WA_U_27708_STR-CONTROLLINGAREA sy-vline 
WA_U_27708_STR-SCOSTCENTER sy-vline 
WA_U_27708_STR-RCOSTCENTER sy-vline 
WA_U_27708_STR-RORDER sy-vline 
WA_U_27708_STR-RSALESORDER sy-vline 
WA_U_27708_STR-RSALESITEM sy-vline 
WA_U_27708_STR-RWBSELEMENT sy-vline 
WA_U_27708_STR-DATESTAMP sy-vline 
WA_U_27708_STR-TIMESTAMP sy-vline 
WA_U_27708_STR-PREVREFDOC sy-vline 
WA_U_27708_STR-PERCENTAGE sy-vline 
WA_U_27708_STR-PSP_ELEMENT sy-vline      INTO ld_text SEPARATED BY SPACE.

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