ABAP Select data from SAP table PVALRULE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PVALRULE
*  INTO TABLE @DATA(IT_PVALRULE2).
*--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_PVALRULE INDEX 1 INTO DATA(WA_PVALRULE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PVALRULE>-MANDT = 1.
<PVALRULE>-INTERNALREALESTATENUMBER = 1.
<PVALRULE>-REVALUATIONRULEUUID = 1.
<PVALRULE>-RETERMNUMBER = 1.
<PVALRULE>-RETERMTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PVALRULE-VALIDITYSTARTDATE, sy-vline,
  WA_PVALRULE-VALIDITYENDDATE, sy-vline,
  WA_PVALRULE-RESTATUSOBJECT, sy-vline,
  WA_PVALRULE-OBJECTVALIDFROM, sy-vline,
  WA_PVALRULE-REVALUATIONRULE, sy-vline,
  WA_PVALRULE-RECONSIDERATIONSTARTDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PVALRULE 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_PVALRULE 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_PVALRULE INTO WA_PVALRULE.


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

*Conversion exit ALPHA, internal->external for field REFREQUENCYTERM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PVALRULE-REFREQUENCYTERM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PVALRULE-REFREQUENCYTERM.
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_PVALRULE_STR, 
MANDT TYPE STRING,
INTERNALREALESTATENUMBER TYPE STRING,
REVALUATIONRULEUUID TYPE STRING,
RETERMNUMBER TYPE STRING,
RETERMTYPE TYPE STRING,
VALIDITYSTARTDATE TYPE STRING,
VALIDITYENDDATE TYPE STRING,
RESTATUSOBJECT TYPE STRING,
OBJECTVALIDFROM TYPE STRING,
REVALUATIONRULE TYPE STRING,
RECONSIDERATIONSTARTDATE TYPE STRING,
RECASHFLOWPOSTINGFROMDATE TYPE STRING,
RESTATUSOBJECTASSET TYPE STRING,
REVALUATIONCLASSIFICATION TYPE STRING,
REINTERESTRATE TYPE STRING,
REFREQUENCYTERM TYPE STRING,
REDISTRIBUTIONRULE TYPE STRING,
REDISTRIBUTIONRULEPARAM1 TYPE STRING,
REDISTRIBUTIONRULEPARAM2 TYPE STRING,
REPROBABLEENDDATE TYPE STRING,
REASSETRIGHTOFUSEENDDATE TYPE STRING,
REVALUATIONRULESTATUS TYPE STRING,
REVALUATIONSTATUS TYPE STRING,
REVALUATIONSTATUSREASON TYPE STRING,
REVALUATIONBEHAVIOR TYPE STRING,
RETAXTYPE TYPE STRING,
TAXGROUP TYPE STRING,
REACCOUNTINGOBJECT TYPE STRING,
REINFOTEXT TYPE STRING,
REVALUATIONFACTORNUMERATOR TYPE STRING,
REVALUATIONFACTORDENOMINATOR TYPE STRING,
REVALUATIONCURRENCY TYPE STRING,
REVALUATIONQUESTIONNAIREUUID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PVALRULE_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_PVALRULE_STR-MANDT sy-vline 
WA_PVALRULE_STR-INTERNALREALESTATENUMBER sy-vline 
WA_PVALRULE_STR-REVALUATIONRULEUUID sy-vline 
WA_PVALRULE_STR-RETERMNUMBER sy-vline 
WA_PVALRULE_STR-RETERMTYPE sy-vline 
WA_PVALRULE_STR-VALIDITYSTARTDATE sy-vline 
WA_PVALRULE_STR-VALIDITYENDDATE sy-vline 
WA_PVALRULE_STR-RESTATUSOBJECT sy-vline 
WA_PVALRULE_STR-OBJECTVALIDFROM sy-vline 
WA_PVALRULE_STR-REVALUATIONRULE sy-vline 
WA_PVALRULE_STR-RECONSIDERATIONSTARTDATE sy-vline 
WA_PVALRULE_STR-RECASHFLOWPOSTINGFROMDATE sy-vline 
WA_PVALRULE_STR-RESTATUSOBJECTASSET sy-vline 
WA_PVALRULE_STR-REVALUATIONCLASSIFICATION sy-vline 
WA_PVALRULE_STR-REINTERESTRATE sy-vline 
WA_PVALRULE_STR-REFREQUENCYTERM sy-vline 
WA_PVALRULE_STR-REDISTRIBUTIONRULE sy-vline 
WA_PVALRULE_STR-REDISTRIBUTIONRULEPARAM1 sy-vline 
WA_PVALRULE_STR-REDISTRIBUTIONRULEPARAM2 sy-vline 
WA_PVALRULE_STR-REPROBABLEENDDATE sy-vline 
WA_PVALRULE_STR-REASSETRIGHTOFUSEENDDATE sy-vline 
WA_PVALRULE_STR-REVALUATIONRULESTATUS sy-vline 
WA_PVALRULE_STR-REVALUATIONSTATUS sy-vline 
WA_PVALRULE_STR-REVALUATIONSTATUSREASON sy-vline 
WA_PVALRULE_STR-REVALUATIONBEHAVIOR sy-vline 
WA_PVALRULE_STR-RETAXTYPE sy-vline 
WA_PVALRULE_STR-TAXGROUP sy-vline 
WA_PVALRULE_STR-REACCOUNTINGOBJECT sy-vline 
WA_PVALRULE_STR-REINFOTEXT sy-vline 
WA_PVALRULE_STR-REVALUATIONFACTORNUMERATOR sy-vline 
WA_PVALRULE_STR-REVALUATIONFACTORDENOMINATOR sy-vline 
WA_PVALRULE_STR-REVALUATIONCURRENCY sy-vline 
WA_PVALRULE_STR-REVALUATIONQUESTIONNAIREUUID sy-vline      INTO ld_text SEPARATED BY SPACE.

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