ABAP Select data from SAP table I_PURINFCNDPRDWD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM I_PURINFCNDPRDWD
*  INTO TABLE @DATA(IT_I_PURINFCNDPRDWD2).
*--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_I_PURINFCNDPRDWD INDEX 1 INTO DATA(WA_I_PURINFCNDPRDWD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<I_PURINFCNDPRDWD>-MANDT = 1.
<I_PURINFCNDPRDWD>-CONDITIONVALIDITYENDDATE = 1.
<I_PURINFCNDPRDWD>-PLANT = 1.
<I_PURINFCNDPRDWD>-PURCHASINGINFORECORDCATEGORY = 1.
<I_PURINFCNDPRDWD>-PURCHASINGORGANIZATION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_I_PURINFCNDPRDWD-PURCHASINGINFORECORD, sy-vline,
  WA_I_PURINFCNDPRDWD-CONDITIONVALDTYENDDATEFOREDIT, sy-vline,
  WA_I_PURINFCNDPRDWD-CONDITIONRECORD, sy-vline,
  WA_I_PURINFCNDPRDWD-CONDITIONSEQUENTIALNUMBER, sy-vline,
  WA_I_PURINFCNDPRDWD-CONDITIONTYPE, sy-vline,
  WA_I_PURINFCNDPRDWD-CONDITIONVALIDITYSTARTDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_I_PURINFCNDPRDWD 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_I_PURINFCNDPRDWD 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_I_PURINFCNDPRDWD INTO WA_I_PURINFCNDPRDWD.


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

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

*Conversion exit CUNIT, internal->external for field BASEUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_I_PURINFCNDPRDWD-BASEUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_I_PURINFCNDPRDWD-BASEUNIT.
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_I_PURINFCNDPRDWD_STR, 
MANDT TYPE STRING,
CONDITIONVALIDITYENDDATE TYPE STRING,
PLANT TYPE STRING,
PURCHASINGINFORECORDCATEGORY TYPE STRING,
PURCHASINGORGANIZATION TYPE STRING,
PURCHASINGINFORECORD TYPE STRING,
CONDITIONVALDTYENDDATEFOREDIT TYPE STRING,
CONDITIONRECORD TYPE STRING,
CONDITIONSEQUENTIALNUMBER TYPE STRING,
CONDITIONTYPE TYPE STRING,
CONDITIONVALIDITYSTARTDATE TYPE STRING,
CONDITIONRATEVALUE TYPE STRING,
CONDITIONRATEVALUEUNIT TYPE STRING,
CONDITIONQUANTITY TYPE STRING,
CONDITIONQUANTITYUNIT TYPE STRING,
CONDITIONAPPLICATION TYPE STRING,
CONDITIONCALCULATIONTYPE TYPE STRING,
CONDITIONISDELETED TYPE STRING,
CONDITIONTOBASEQTYNMRTR TYPE STRING,
CONDITIONTOBASEQTYDNMNTR TYPE STRING,
BASEUNIT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_I_PURINFCNDPRDWD_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_I_PURINFCNDPRDWD_STR-MANDT sy-vline 
WA_I_PURINFCNDPRDWD_STR-CONDITIONVALIDITYENDDATE sy-vline 
WA_I_PURINFCNDPRDWD_STR-PLANT sy-vline 
WA_I_PURINFCNDPRDWD_STR-PURCHASINGINFORECORDCATEGORY sy-vline 
WA_I_PURINFCNDPRDWD_STR-PURCHASINGORGANIZATION sy-vline 
WA_I_PURINFCNDPRDWD_STR-PURCHASINGINFORECORD sy-vline 
WA_I_PURINFCNDPRDWD_STR-CONDITIONVALDTYENDDATEFOREDIT sy-vline 
WA_I_PURINFCNDPRDWD_STR-CONDITIONRECORD sy-vline 
WA_I_PURINFCNDPRDWD_STR-CONDITIONSEQUENTIALNUMBER sy-vline 
WA_I_PURINFCNDPRDWD_STR-CONDITIONTYPE sy-vline 
WA_I_PURINFCNDPRDWD_STR-CONDITIONVALIDITYSTARTDATE sy-vline 
WA_I_PURINFCNDPRDWD_STR-CONDITIONRATEVALUE sy-vline 
WA_I_PURINFCNDPRDWD_STR-CONDITIONRATEVALUEUNIT sy-vline 
WA_I_PURINFCNDPRDWD_STR-CONDITIONQUANTITY sy-vline 
WA_I_PURINFCNDPRDWD_STR-CONDITIONQUANTITYUNIT sy-vline 
WA_I_PURINFCNDPRDWD_STR-CONDITIONAPPLICATION sy-vline 
WA_I_PURINFCNDPRDWD_STR-CONDITIONCALCULATIONTYPE sy-vline 
WA_I_PURINFCNDPRDWD_STR-CONDITIONISDELETED sy-vline 
WA_I_PURINFCNDPRDWD_STR-CONDITIONTOBASEQTYNMRTR sy-vline 
WA_I_PURINFCNDPRDWD_STR-CONDITIONTOBASEQTYDNMNTR sy-vline 
WA_I_PURINFCNDPRDWD_STR-BASEUNIT sy-vline      INTO ld_text SEPARATED BY SPACE.

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