ABAP Select data from SAP table PKZVATRETINTAB into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PKZVATRETINTAB 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 PKZVATRETINTAB. 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 PKZVATRETINTAB 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_PKZVATRETINTAB TYPE STANDARD TABLE OF PKZVATRETINTAB,
      WA_PKZVATRETINTAB TYPE PKZVATRETINTAB,
      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: <PKZVATRETINTAB> TYPE PKZVATRETINTAB.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PKZVATRETINTAB
*  INTO TABLE @DATA(IT_PKZVATRETINTAB2).
*--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_PKZVATRETINTAB INDEX 1 INTO DATA(WA_PKZVATRETINTAB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PKZVATRETINTAB>-MANDT = 1.
<PKZVATRETINTAB>-STATRYRPTGENTITY = 1.
<PKZVATRETINTAB>-STATRYRPTCATEGORY = 1.
<PKZVATRETINTAB>-STATRYRPTRUNID = 1.
<PKZVATRETINTAB>-LINE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PKZVATRETINTAB-VATCATEGORYID, sy-vline,
  WA_PKZVATRETINTAB-TAXNUMBER1, sy-vline,
  WA_PKZVATRETINTAB-TAXNUMBER3, sy-vline,
  WA_PKZVATRETINTAB-INVOICENUMBER, sy-vline,
  WA_PKZVATRETINTAB-TAXREPORTINGDATE, sy-vline,
  WA_PKZVATRETINTAB-TAXREPDATETECH, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PKZVATRETINTAB 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_PKZVATRETINTAB 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_PKZVATRETINTAB INTO WA_PKZVATRETINTAB.


*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_PKZVATRETINTAB-TAXBASEAMOUNTINCOCODECRCY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PKZVATRETINTAB-TAXBASEAMOUNTINCOCODECRCY.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit CUNIT, internal->external for field QUANTITYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PKZVATRETINTAB-QUANTITYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PKZVATRETINTAB-QUANTITYUNIT.
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_PKZVATRETINTAB_STR, 
MANDT TYPE STRING,
STATRYRPTGENTITY TYPE STRING,
STATRYRPTCATEGORY TYPE STRING,
STATRYRPTRUNID TYPE STRING,
LINE TYPE STRING,
VATCATEGORYID TYPE STRING,
TAXNUMBER1 TYPE STRING,
TAXNUMBER3 TYPE STRING,
INVOICENUMBER TYPE STRING,
TAXREPORTINGDATE TYPE STRING,
TAXREPDATETECH TYPE STRING,
ACTIVITY TYPE STRING,
TAXBASEAMOUNTINCOCODECRCY TYPE STRING,
TAXAMOUNTINCOCODECRCY TYPE STRING,
TAXBASEAMOUNTINCOCODECRCYTOT TYPE STRING,
TAXAMOUNTINCOCODECRCYTOT TYPE STRING,
MATERIALNAME TYPE STRING,
QUANTITYUNIT TYPE STRING,
QUANTITY TYPE STRING,
CURRENCY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PKZVATRETINTAB_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_PKZVATRETINTAB_STR-MANDT sy-vline 
WA_PKZVATRETINTAB_STR-STATRYRPTGENTITY sy-vline 
WA_PKZVATRETINTAB_STR-STATRYRPTCATEGORY sy-vline 
WA_PKZVATRETINTAB_STR-STATRYRPTRUNID sy-vline 
WA_PKZVATRETINTAB_STR-LINE sy-vline 
WA_PKZVATRETINTAB_STR-VATCATEGORYID sy-vline 
WA_PKZVATRETINTAB_STR-TAXNUMBER1 sy-vline 
WA_PKZVATRETINTAB_STR-TAXNUMBER3 sy-vline 
WA_PKZVATRETINTAB_STR-INVOICENUMBER sy-vline 
WA_PKZVATRETINTAB_STR-TAXREPORTINGDATE sy-vline 
WA_PKZVATRETINTAB_STR-TAXREPDATETECH sy-vline 
WA_PKZVATRETINTAB_STR-ACTIVITY sy-vline 
WA_PKZVATRETINTAB_STR-TAXBASEAMOUNTINCOCODECRCY sy-vline 
WA_PKZVATRETINTAB_STR-TAXAMOUNTINCOCODECRCY sy-vline 
WA_PKZVATRETINTAB_STR-TAXBASEAMOUNTINCOCODECRCYTOT sy-vline 
WA_PKZVATRETINTAB_STR-TAXAMOUNTINCOCODECRCYTOT sy-vline 
WA_PKZVATRETINTAB_STR-MATERIALNAME sy-vline 
WA_PKZVATRETINTAB_STR-QUANTITYUNIT sy-vline 
WA_PKZVATRETINTAB_STR-QUANTITY sy-vline 
WA_PKZVATRETINTAB_STR-CURRENCY sy-vline      INTO ld_text SEPARATED BY SPACE.

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