ABAP Select data from SAP table PKR_FORM_SSI into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PKR_FORM_SSI
*  INTO TABLE @DATA(IT_PKR_FORM_SSI2).
*--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_PKR_FORM_SSI INDEX 1 INTO DATA(WA_PKR_FORM_SSI2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PKR_FORM_SSI>-BUKRS = 1.
<PKR_FORM_SSI>-TAXOF = 1.
<PKR_FORM_SSI>-EMPER = 1.
<PKR_FORM_SSI>-ISSER = 1.
<PKR_FORM_SSI>-COMNM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PKR_FORM_SSI-REPRE, sy-vline,
  WA_PKR_FORM_SSI-STCD2, sy-vline,
  WA_PKR_FORM_SSI-STCD1, sy-vline,
  WA_PKR_FORM_SSI-ADDRE, sy-vline,
  WA_PKR_FORM_SSI-TELNR, sy-vline,
  WA_PKR_FORM_SSI-EMAIL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PKR_FORM_SSI 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_PKR_FORM_SSI 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_PKR_FORM_SSI INTO WA_PKR_FORM_SSI.


*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 RGBZN, internal->external for field STCD2
CALL FUNCTION 'CONVERSION_EXIT_RGBZN_OUTPUT'
  EXPORTING
    input =                      WA_PKR_FORM_SSI-STCD2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PKR_FORM_SSI-STCD2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit RGBZN, internal->external for field STCD1
CALL FUNCTION 'CONVERSION_EXIT_RGBZN_OUTPUT'
  EXPORTING
    input =                      WA_PKR_FORM_SSI-STCD1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PKR_FORM_SSI-STCD1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SXIDN, internal->external for field EMAIL
CALL FUNCTION 'CONVERSION_EXIT_SXIDN_OUTPUT'
  EXPORTING
    input =                      WA_PKR_FORM_SSI-EMAIL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PKR_FORM_SSI-EMAIL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field TAXYR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_PKR_FORM_SSI-TAXYR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PKR_FORM_SSI-TAXYR.
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_PKR_FORM_SSI_STR, 
BUKRS TYPE STRING,
TAXOF TYPE STRING,
EMPER TYPE STRING,
ISSER TYPE STRING,
COMNM TYPE STRING,
REPRE TYPE STRING,
STCD2 TYPE STRING,
STCD1 TYPE STRING,
ADDRE TYPE STRING,
TELNR TYPE STRING,
EMAIL TYPE STRING,
TAXYR TYPE STRING,
1STHY TYPE STRING,
2NDHY TYPE STRING,
EENUM TYPE STRING,
TTINC TYPE STRING,
TTNON TYPE STRING,
PAGE1 TYPE STRING,
PAGE2 TYPE STRING,
SUBDT TYPE STRING,
SUBNM TYPE STRING,
CSEAL TYPE STRING,
WAERS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PKR_FORM_SSI_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_PKR_FORM_SSI_STR-BUKRS sy-vline 
WA_PKR_FORM_SSI_STR-TAXOF sy-vline 
WA_PKR_FORM_SSI_STR-EMPER sy-vline 
WA_PKR_FORM_SSI_STR-ISSER sy-vline 
WA_PKR_FORM_SSI_STR-COMNM sy-vline 
WA_PKR_FORM_SSI_STR-REPRE sy-vline 
WA_PKR_FORM_SSI_STR-STCD2 sy-vline 
WA_PKR_FORM_SSI_STR-STCD1 sy-vline 
WA_PKR_FORM_SSI_STR-ADDRE sy-vline 
WA_PKR_FORM_SSI_STR-TELNR sy-vline 
WA_PKR_FORM_SSI_STR-EMAIL sy-vline 
WA_PKR_FORM_SSI_STR-TAXYR sy-vline 
WA_PKR_FORM_SSI_STR-1STHY sy-vline 
WA_PKR_FORM_SSI_STR-2NDHY sy-vline 
WA_PKR_FORM_SSI_STR-EENUM sy-vline 
WA_PKR_FORM_SSI_STR-TTINC sy-vline 
WA_PKR_FORM_SSI_STR-TTNON sy-vline 
WA_PKR_FORM_SSI_STR-PAGE1 sy-vline 
WA_PKR_FORM_SSI_STR-PAGE2 sy-vline 
WA_PKR_FORM_SSI_STR-SUBDT sy-vline 
WA_PKR_FORM_SSI_STR-SUBNM sy-vline 
WA_PKR_FORM_SSI_STR-CSEAL sy-vline 
WA_PKR_FORM_SSI_STR-WAERS sy-vline      INTO ld_text SEPARATED BY SPACE.

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