ABAP Select data from SAP table PRUVATPREVIEW1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PRUVATPREVIEW1 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 PRUVATPREVIEW1. 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 PRUVATPREVIEW1 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_PRUVATPREVIEW1 TYPE STANDARD TABLE OF PRUVATPREVIEW1,
      WA_PRUVATPREVIEW1 TYPE PRUVATPREVIEW1,
      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: <PRUVATPREVIEW1> TYPE PRUVATPREVIEW1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PRUVATPREVIEW1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PRUVATPREVIEW1
  INTO TABLE IT_PRUVATPREVIEW1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PRUVATPREVIEW1
*  INTO TABLE @DATA(IT_PRUVATPREVIEW12).
*--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_PRUVATPREVIEW1 INDEX 1 INTO DATA(WA_PRUVATPREVIEW12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PRUVATPREVIEW1 ASSIGNING <PRUVATPREVIEW1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PRUVATPREVIEW1>-MANDT = 1.
<PRUVATPREVIEW1>-RU_VATRETURNSECTION = 1.
<PRUVATPREVIEW1>-RU_VATRETURNSECTIONTYPE = 1.
<PRUVATPREVIEW1>-EXPORTINVCCONFIRMEDFISCALYEAR = 1.
<PRUVATPREVIEW1>-FISCALPERIOD = 1.

ENDLOOP.

LOOP AT IT_PRUVATPREVIEW1 INTO WA_PRUVATPREVIEW1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PRUVATPREVIEW1-SUPPLIERNAME, sy-vline,
  WA_PRUVATPREVIEW1-VATRETURNOPERATION, sy-vline,
  WA_PRUVATPREVIEW1-TAXBOXBYTAXAUTHORITY, sy-vline,
  WA_PRUVATPREVIEW1-VATRETURNITEMDESCRIPTION, sy-vline,
  WA_PRUVATPREVIEW1-TAXBASEAMOUNTINCOCODECRCY, sy-vline,
  WA_PRUVATPREVIEW1-TAXAMOUNTINCOCODECRCY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PRUVATPREVIEW1 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_PRUVATPREVIEW1 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_PRUVATPREVIEW1 INTO WA_PRUVATPREVIEW1.


*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 AC152, internal->external for field TAXBASEAMOUNTINCOCODECRCY
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PRUVATPREVIEW1-TAXBASEAMOUNTINCOCODECRCY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRUVATPREVIEW1-TAXBASEAMOUNTINCOCODECRCY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field TAXAMOUNTINCOCODECRCY
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_PRUVATPREVIEW1-TAXAMOUNTINCOCODECRCY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRUVATPREVIEW1-TAXAMOUNTINCOCODECRCY.
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_PRUVATPREVIEW1_STR, 
MANDT TYPE STRING,
RU_VATRETURNSECTION TYPE STRING,
RU_VATRETURNSECTIONTYPE TYPE STRING,
EXPORTINVCCONFIRMEDFISCALYEAR TYPE STRING,
FISCALPERIOD TYPE STRING,
SUPPLIERNAME TYPE STRING,
VATRETURNOPERATION TYPE STRING,
TAXBOXBYTAXAUTHORITY TYPE STRING,
VATRETURNITEMDESCRIPTION TYPE STRING,
TAXBASEAMOUNTINCOCODECRCY TYPE STRING,
TAXAMOUNTINCOCODECRCY TYPE STRING,
COMPANYCODECURRENCY TYPE STRING,
RU_VATRETURNVERSION TYPE STRING,
STATRYRPTGENTITY TYPE STRING,
STATRYRPTCATEGORY TYPE STRING,
STATRYRPTRUNID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PRUVATPREVIEW1_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_PRUVATPREVIEW1_STR-MANDT sy-vline 
WA_PRUVATPREVIEW1_STR-RU_VATRETURNSECTION sy-vline 
WA_PRUVATPREVIEW1_STR-RU_VATRETURNSECTIONTYPE sy-vline 
WA_PRUVATPREVIEW1_STR-EXPORTINVCCONFIRMEDFISCALYEAR sy-vline 
WA_PRUVATPREVIEW1_STR-FISCALPERIOD sy-vline 
WA_PRUVATPREVIEW1_STR-SUPPLIERNAME sy-vline 
WA_PRUVATPREVIEW1_STR-VATRETURNOPERATION sy-vline 
WA_PRUVATPREVIEW1_STR-TAXBOXBYTAXAUTHORITY sy-vline 
WA_PRUVATPREVIEW1_STR-VATRETURNITEMDESCRIPTION sy-vline 
WA_PRUVATPREVIEW1_STR-TAXBASEAMOUNTINCOCODECRCY sy-vline 
WA_PRUVATPREVIEW1_STR-TAXAMOUNTINCOCODECRCY sy-vline 
WA_PRUVATPREVIEW1_STR-COMPANYCODECURRENCY sy-vline 
WA_PRUVATPREVIEW1_STR-RU_VATRETURNVERSION sy-vline 
WA_PRUVATPREVIEW1_STR-STATRYRPTGENTITY sy-vline 
WA_PRUVATPREVIEW1_STR-STATRYRPTCATEGORY sy-vline 
WA_PRUVATPREVIEW1_STR-STATRYRPTRUNID sy-vline      INTO ld_text SEPARATED BY SPACE.

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