ABAP Select data from SAP table IFLPREDOC_R into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IFLPREDOC_R
*  INTO TABLE @DATA(IT_IFLPREDOC_R2).
*--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_IFLPREDOC_R INDEX 1 INTO DATA(WA_IFLPREDOC_R2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IFLPREDOC_R>-MANDT = 1.
<IFLPREDOC_R>-PURCHASINGDOCUMENT = 1.
<IFLPREDOC_R>-PURCHASINGDOCUMENTITEM = 1.
<IFLPREDOC_R>-OUTBOUNDDELIVERY = 1.
<IFLPREDOC_R>-OUTBOUNDDELIVERYITEM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IFLPREDOC_R-FLDLOGSSUPLRITEMUUID, sy-vline,
  WA_IFLPREDOC_R-PURCHASEREQUISITION, sy-vline,
  WA_IFLPREDOC_R-PURCHASEREQUISITIONITEM, sy-vline,
  WA_IFLPREDOC_R-DELIVERYDOCUMENT, sy-vline,
  WA_IFLPREDOC_R-DELIVERYDOCUMENTITEM, sy-vline,
  WA_IFLPREDOC_R-MATERIALDOCUMENT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IFLPREDOC_R 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_IFLPREDOC_R 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_IFLPREDOC_R INTO WA_IFLPREDOC_R.


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

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

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

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

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

*Conversion exit GJAHR, internal->external for field MATERIALDOCUMENTYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_IFLPREDOC_R-MATERIALDOCUMENTYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IFLPREDOC_R-MATERIALDOCUMENTYEAR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field MAINTENANCEORDER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IFLPREDOC_R-MAINTENANCEORDER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IFLPREDOC_R-MAINTENANCEORDER.
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_IFLPREDOC_R_STR, 
MANDT TYPE STRING,
PURCHASINGDOCUMENT TYPE STRING,
PURCHASINGDOCUMENTITEM TYPE STRING,
OUTBOUNDDELIVERY TYPE STRING,
OUTBOUNDDELIVERYITEM TYPE STRING,
FLDLOGSSUPLRITEMUUID TYPE STRING,
PURCHASEREQUISITION TYPE STRING,
PURCHASEREQUISITIONITEM TYPE STRING,
DELIVERYDOCUMENT TYPE STRING,
DELIVERYDOCUMENTITEM TYPE STRING,
MATERIALDOCUMENT TYPE STRING,
MATERIALDOCUMENTITEM TYPE STRING,
MATERIALDOCUMENTYEAR TYPE STRING,
REFERENCEDOCUMENT TYPE STRING,
REFPURCHASEREQUISITIONITEM TYPE STRING,
EWMOUTBOUNDDELIVERYORDER TYPE STRING,
FLDLOGSPICKINGWRHSTASK TYPE STRING,
PURCHASEORDER TYPE STRING,
STOCKTRANSPORTORDER TYPE STRING,
INBOUNDDELIVERYUUID TYPE STRING,
INBOUNDDELIVERYITEMUUID TYPE STRING,
WAREHOUSETASK TYPE STRING,
PURCHASINGDOCUMENTSUBTYPE TYPE STRING,
MAINTENANCEORDER TYPE STRING,
PROJECT TYPE STRING,
PROJECTDEMAND TYPE STRING,
PROJECTDESCRIPTION TYPE STRING,
PROJECTDEMANDNAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IFLPREDOC_R_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_IFLPREDOC_R_STR-MANDT sy-vline 
WA_IFLPREDOC_R_STR-PURCHASINGDOCUMENT sy-vline 
WA_IFLPREDOC_R_STR-PURCHASINGDOCUMENTITEM sy-vline 
WA_IFLPREDOC_R_STR-OUTBOUNDDELIVERY sy-vline 
WA_IFLPREDOC_R_STR-OUTBOUNDDELIVERYITEM sy-vline 
WA_IFLPREDOC_R_STR-FLDLOGSSUPLRITEMUUID sy-vline 
WA_IFLPREDOC_R_STR-PURCHASEREQUISITION sy-vline 
WA_IFLPREDOC_R_STR-PURCHASEREQUISITIONITEM sy-vline 
WA_IFLPREDOC_R_STR-DELIVERYDOCUMENT sy-vline 
WA_IFLPREDOC_R_STR-DELIVERYDOCUMENTITEM sy-vline 
WA_IFLPREDOC_R_STR-MATERIALDOCUMENT sy-vline 
WA_IFLPREDOC_R_STR-MATERIALDOCUMENTITEM sy-vline 
WA_IFLPREDOC_R_STR-MATERIALDOCUMENTYEAR sy-vline 
WA_IFLPREDOC_R_STR-REFERENCEDOCUMENT sy-vline 
WA_IFLPREDOC_R_STR-REFPURCHASEREQUISITIONITEM sy-vline 
WA_IFLPREDOC_R_STR-EWMOUTBOUNDDELIVERYORDER sy-vline 
WA_IFLPREDOC_R_STR-FLDLOGSPICKINGWRHSTASK sy-vline 
WA_IFLPREDOC_R_STR-PURCHASEORDER sy-vline 
WA_IFLPREDOC_R_STR-STOCKTRANSPORTORDER sy-vline 
WA_IFLPREDOC_R_STR-INBOUNDDELIVERYUUID sy-vline 
WA_IFLPREDOC_R_STR-INBOUNDDELIVERYITEMUUID sy-vline 
WA_IFLPREDOC_R_STR-WAREHOUSETASK sy-vline 
WA_IFLPREDOC_R_STR-PURCHASINGDOCUMENTSUBTYPE sy-vline 
WA_IFLPREDOC_R_STR-MAINTENANCEORDER sy-vline 
WA_IFLPREDOC_R_STR-PROJECT sy-vline 
WA_IFLPREDOC_R_STR-PROJECTDEMAND sy-vline 
WA_IFLPREDOC_R_STR-PROJECTDESCRIPTION sy-vline 
WA_IFLPREDOC_R_STR-PROJECTDEMANDNAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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