ABAP Select data from SAP table PS0646 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PS0646 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 PS0646. 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 PS0646 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_PS0646 TYPE STANDARD TABLE OF PS0646,
      WA_PS0646 TYPE PS0646,
      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: <PS0646> TYPE PS0646.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PS0646.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PS0646
  INTO TABLE IT_PS0646.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PS0646
*  INTO TABLE @DATA(IT_PS06462).
*--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_PS0646 INDEX 1 INTO DATA(WA_PS06462).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PS0646 ASSIGNING <PS0646>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PS0646>-STATUS = 1.
<PS0646>-CASE_NUMBER = 1.
<PS0646>-REGNR_FVP = 1.
<PS0646>-SEND_DATE = 1.
<PS0646>-PARTTIME_PERC = 1.

ENDLOOP.

LOOP AT IT_PS0646 INTO WA_PS0646.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PS0646-PENSION_DATE, sy-vline,
  WA_PS0646-PENSION_SALARY, sy-vline,
  WA_PS0646-FRANCH_AMOUNT, sy-vline,
  WA_PS0646-BUILDUP_PERC, sy-vline,
  WA_PS0646-YEAR_BUILDOP, sy-vline,
  WA_PS0646-NP_PERC, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PS0646 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_PS0646 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_PS0646 INTO WA_PS0646.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_PS0646_STR, 
STATUS TYPE STRING,
CASE_NUMBER TYPE STRING,
REGNR_FVP TYPE STRING,
SEND_DATE TYPE STRING,
PARTTIME_PERC TYPE STRING,
PENSION_DATE TYPE STRING,
PENSION_SALARY TYPE STRING,
FRANCH_AMOUNT TYPE STRING,
BUILDUP_PERC TYPE STRING,
YEAR_BUILDOP TYPE STRING,
NP_PERC TYPE STRING,
YEAR_BUILDNP TYPE STRING,
CONTIN_PERC TYPE STRING,
PROVISION_PERC TYPE STRING,
GROSS_FVPAMOUNT TYPE STRING,
DEDUCTION_PERC TYPE STRING,
DEDUCTION_AMOUNT TYPE STRING,
NET_FVPAMOUNT TYPE STRING,
VALUE_DATE TYPE STRING,
PAY_DATE TYPE STRING,
COMPENS_PERC TYPE STRING,
COMPENS_AMOUNT TYPE STRING,
PAYMENT_DUE TYPE STRING,
FVP_CLAIMOP TYPE STRING,
FVP_CLAIMNP TYPE STRING,
BEGDA_BENEFIT TYPE STRING,
ENDDA_BENEFIT TYPE STRING,
SEND_CURR TYPE STRING,
RCV_CURR TYPE STRING,
STATUS_OLD TYPE STRING,
STATUS_ACT TYPE STRING,
WAITPER_PERC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PS0646_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_PS0646_STR-STATUS sy-vline 
WA_PS0646_STR-CASE_NUMBER sy-vline 
WA_PS0646_STR-REGNR_FVP sy-vline 
WA_PS0646_STR-SEND_DATE sy-vline 
WA_PS0646_STR-PARTTIME_PERC sy-vline 
WA_PS0646_STR-PENSION_DATE sy-vline 
WA_PS0646_STR-PENSION_SALARY sy-vline 
WA_PS0646_STR-FRANCH_AMOUNT sy-vline 
WA_PS0646_STR-BUILDUP_PERC sy-vline 
WA_PS0646_STR-YEAR_BUILDOP sy-vline 
WA_PS0646_STR-NP_PERC sy-vline 
WA_PS0646_STR-YEAR_BUILDNP sy-vline 
WA_PS0646_STR-CONTIN_PERC sy-vline 
WA_PS0646_STR-PROVISION_PERC sy-vline 
WA_PS0646_STR-GROSS_FVPAMOUNT sy-vline 
WA_PS0646_STR-DEDUCTION_PERC sy-vline 
WA_PS0646_STR-DEDUCTION_AMOUNT sy-vline 
WA_PS0646_STR-NET_FVPAMOUNT sy-vline 
WA_PS0646_STR-VALUE_DATE sy-vline 
WA_PS0646_STR-PAY_DATE sy-vline 
WA_PS0646_STR-COMPENS_PERC sy-vline 
WA_PS0646_STR-COMPENS_AMOUNT sy-vline 
WA_PS0646_STR-PAYMENT_DUE sy-vline 
WA_PS0646_STR-FVP_CLAIMOP sy-vline 
WA_PS0646_STR-FVP_CLAIMNP sy-vline 
WA_PS0646_STR-BEGDA_BENEFIT sy-vline 
WA_PS0646_STR-ENDDA_BENEFIT sy-vline 
WA_PS0646_STR-SEND_CURR sy-vline 
WA_PS0646_STR-RCV_CURR sy-vline 
WA_PS0646_STR-STATUS_OLD sy-vline 
WA_PS0646_STR-STATUS_ACT sy-vline 
WA_PS0646_STR-WAITPER_PERC sy-vline      INTO ld_text SEPARATED BY SPACE.

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