ABAP Select data from SAP table U_15576 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP U_15576 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_15576. 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_15576 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_15576 TYPE STANDARD TABLE OF U_15576,
      WA_U_15576 TYPE U_15576,
      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_15576> TYPE U_15576.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_U_15576.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM U_15576
  INTO TABLE IT_U_15576.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM U_15576
*  INTO TABLE @DATA(IT_U_155762).
*--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_15576 INDEX 1 INTO DATA(WA_U_155762).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_U_15576 ASSIGNING <U_15576>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<U_15576>-MANDT = 1.
<U_15576>-PKNUM = 1.
<U_15576>-MATNR = 1.
<U_15576>-WERKS = 1.
<U_15576>-PRVBE = 1.

ENDLOOP.

LOOP AT IT_U_15576 INTO WA_U_15576.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_U_15576-BEHAZ, sy-vline,
  WA_U_15576-BEHMG, sy-vline,
  WA_U_15576-VERID, sy-vline,
  WA_U_15576-SIGAZ, sy-vline,
  WA_U_15576-RGVER, sy-vline,
  WA_U_15576-PKSTE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_U_15576 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_15576 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_15576 INTO WA_U_15576.


*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 PKNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_U_15576-PKNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_15576-PKNUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_U_15576-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_15576-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_U_15576-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_15576-LIFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_U_15576-EBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_15576-EBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field PKBHT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_U_15576-PKBHT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_15576-PKBHT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_U_15576-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_15576-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_U_15576-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_15576-KOSTL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SPDEV, internal->external for field VBPRN
CALL FUNCTION 'CONVERSION_EXIT_SPDEV_OUTPUT'
  EXPORTING
    input =                      WA_U_15576-VBPRN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_15576-VBPRN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PKADR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_U_15576-PKADR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_15576-PKADR.
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_15576_STR, 
MANDT TYPE STRING,
PKNUM TYPE STRING,
MATNR TYPE STRING,
WERKS TYPE STRING,
PRVBE TYPE STRING,
BEHAZ TYPE STRING,
BEHMG TYPE STRING,
VERID TYPE STRING,
SIGAZ TYPE STRING,
RGVER TYPE STRING,
PKSTE TYPE STRING,
BERKZ TYPE STRING,
LGNUM TYPE STRING,
LGTYP TYPE STRING,
LGPLA TYPE STRING,
NKDYN TYPE STRING,
PKSTF TYPE STRING,
PKSTU TYPE STRING,
LIFNR TYPE STRING,
EKORG TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
ANSWB TYPE STRING,
PKBHT TYPE STRING,
QUFKT TYPE STRING,
UMLGO TYPE STRING,
MEINS TYPE STRING,
RKSTA TYPE STRING,
KOSTL TYPE STRING,
VBPRN TYPE STRING,
PKDRS TYPE STRING,
PKUMW TYPE STRING,
PKADR TYPE STRING,
PKSFG TYPE STRING,
PKLOG TYPE STRING,
ALSMG TYPE STRING,
ABLAD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_U_15576_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_15576_STR-MANDT sy-vline 
WA_U_15576_STR-PKNUM sy-vline 
WA_U_15576_STR-MATNR sy-vline 
WA_U_15576_STR-WERKS sy-vline 
WA_U_15576_STR-PRVBE sy-vline 
WA_U_15576_STR-BEHAZ sy-vline 
WA_U_15576_STR-BEHMG sy-vline 
WA_U_15576_STR-VERID sy-vline 
WA_U_15576_STR-SIGAZ sy-vline 
WA_U_15576_STR-RGVER sy-vline 
WA_U_15576_STR-PKSTE sy-vline 
WA_U_15576_STR-BERKZ sy-vline 
WA_U_15576_STR-LGNUM sy-vline 
WA_U_15576_STR-LGTYP sy-vline 
WA_U_15576_STR-LGPLA sy-vline 
WA_U_15576_STR-NKDYN sy-vline 
WA_U_15576_STR-PKSTF sy-vline 
WA_U_15576_STR-PKSTU sy-vline 
WA_U_15576_STR-LIFNR sy-vline 
WA_U_15576_STR-EKORG sy-vline 
WA_U_15576_STR-EBELN sy-vline 
WA_U_15576_STR-EBELP sy-vline 
WA_U_15576_STR-ANSWB sy-vline 
WA_U_15576_STR-PKBHT sy-vline 
WA_U_15576_STR-QUFKT sy-vline 
WA_U_15576_STR-UMLGO sy-vline 
WA_U_15576_STR-MEINS sy-vline 
WA_U_15576_STR-RKSTA sy-vline 
WA_U_15576_STR-KOSTL sy-vline 
WA_U_15576_STR-VBPRN sy-vline 
WA_U_15576_STR-PKDRS sy-vline 
WA_U_15576_STR-PKUMW sy-vline 
WA_U_15576_STR-PKADR sy-vline 
WA_U_15576_STR-PKSFG sy-vline 
WA_U_15576_STR-PKLOG sy-vline 
WA_U_15576_STR-ALSMG sy-vline 
WA_U_15576_STR-ABLAD sy-vline      INTO ld_text SEPARATED BY SPACE.

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