ABAP Select data from SAP table /PM0/PWS_POLPR into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /PM0/PWS_POLPR 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 /PM0/PWS_POLPR. 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 /PM0/PWS_POLPR 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_/PM0/PWS_POLPR TYPE STANDARD TABLE OF /PM0/PWS_POLPR,
      WA_/PM0/PWS_POLPR TYPE /PM0/PWS_POLPR,
      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: </PM0/PWS_POLPR> TYPE /PM0/PWS_POLPR.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/PM0/PWS_POLPR.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /PM0/PWS_POLPR
  INTO TABLE IT_/PM0/PWS_POLPR.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /PM0/PWS_POLPR
*  INTO TABLE @DATA(IT_/PM0/PWS_POLPR2).
*--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_/PM0/PWS_POLPR INDEX 1 INTO DATA(WA_/PM0/PWS_POLPR2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/PM0/PWS_POLPR ASSIGNING </PM0/PWS_POLPR>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</PM0/PWS_POLPR>-CONTROLLER = 1.
</PM0/PWS_POLPR>-ACTINACTST_CD = 1.
</PM0/PWS_POLPR>-APPLNR_TT = 1.
</PM0/PWS_POLPR>-CPSPOS_FG = 1.
</PM0/PWS_POLPR>-DATE1_DT = 1.

ENDLOOP.

LOOP AT IT_/PM0/PWS_POLPR INTO WA_/PM0/PWS_POLPR.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/PM0/PWS_POLPR-RENEWEFFECT_DT, sy-vline,
  WA_/PM0/PWS_POLPR-ENDTIME_TM, sy-vline,
  WA_/PM0/PWS_POLPR-EXTVARIA_CD, sy-vline,
  WA_/PM0/PWS_POLPR-GENERATION_FG, sy-vline,
  WA_/PM0/PWS_POLPR-GENERATIO_DET_DT, sy-vline,
  WA_/PM0/PWS_POLPR-ICC_CD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/PM0/PWS_POLPR 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_/PM0/PWS_POLPR 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_/PM0/PWS_POLPR INTO WA_/PM0/PWS_POLPR.


*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_/PM0/PWS_POLPR_STR, 
CONTROLLER TYPE STRING,
ACTINACTST_CD TYPE STRING,
APPLNR_TT TYPE STRING,
CPSPOS_FG TYPE STRING,
DATE1_DT TYPE STRING,
RENEWEFFECT_DT TYPE STRING,
ENDTIME_TM TYPE STRING,
EXTVARIA_CD TYPE STRING,
GENERATION_FG TYPE STRING,
GENERATIO_DET_DT TYPE STRING,
ICC_CD TYPE STRING,
LSTATUS_CD TYPE STRING,
POLPRC_CD TYPE STRING,
POLPRODBEG_DT TYPE STRING,
POLPRODEND_DT TYPE STRING,
PRT_CD TYPE STRING,
QUOTEVARIANT_CD TYPE STRING,
STARTTIME_TM TYPE STRING,
SUSPBEG_DT TYPE STRING,
SUSPEND_DT TYPE STRING,
SUSPTP_CD TYPE STRING,
TARGETDATE_DT TYPE STRING,
TARGRPB_CD TYPE STRING,
TAXEXEMPT_CD TYPE STRING,
PRODUCT_BASE_ID TYPE STRING,
RUNTIME_OBJECT_ID TYPE STRING,
CONTEXT_INFO TYPE STRING,
CONTROLLER TYPE STRING,
EFFECTIVE_DATE_FROM TYPE STRING,
EFFECTIVE_DATE_TO TYPE STRING,
POLPR_ABDAINFRD TYPE STRING,
POLPR_ABDACLAUSE TYPE STRING,
ABDACOVPAC TYPE STRING,
POLPR_ABDABASE TYPE STRING,
ABDAPPDSTL TYPE STRING,
ABDARESDEPC TYPE STRING,
POLPR_ABDADEDCTBL TYPE STRING,
POLPR_ABDAPREM TYPE STRING,
POLPR_ABDACHARGE TYPE STRING,
POLPR_ABDALIMIT TYPE STRING,
POLPR_ABDASUBJCT TYPE STRING,
APDAPOLPR TYPE STRING,
POLPR_ABDASUPDC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/PM0/PWS_POLPR_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_/PM0/PWS_POLPR_STR-CONTROLLER sy-vline 
WA_/PM0/PWS_POLPR_STR-ACTINACTST_CD sy-vline 
WA_/PM0/PWS_POLPR_STR-APPLNR_TT sy-vline 
WA_/PM0/PWS_POLPR_STR-CPSPOS_FG sy-vline 
WA_/PM0/PWS_POLPR_STR-DATE1_DT sy-vline 
WA_/PM0/PWS_POLPR_STR-RENEWEFFECT_DT sy-vline 
WA_/PM0/PWS_POLPR_STR-ENDTIME_TM sy-vline 
WA_/PM0/PWS_POLPR_STR-EXTVARIA_CD sy-vline 
WA_/PM0/PWS_POLPR_STR-GENERATION_FG sy-vline 
WA_/PM0/PWS_POLPR_STR-GENERATIO_DET_DT sy-vline 
WA_/PM0/PWS_POLPR_STR-ICC_CD sy-vline 
WA_/PM0/PWS_POLPR_STR-LSTATUS_CD sy-vline 
WA_/PM0/PWS_POLPR_STR-POLPRC_CD sy-vline 
WA_/PM0/PWS_POLPR_STR-POLPRODBEG_DT sy-vline 
WA_/PM0/PWS_POLPR_STR-POLPRODEND_DT sy-vline 
WA_/PM0/PWS_POLPR_STR-PRT_CD sy-vline 
WA_/PM0/PWS_POLPR_STR-QUOTEVARIANT_CD sy-vline 
WA_/PM0/PWS_POLPR_STR-STARTTIME_TM sy-vline 
WA_/PM0/PWS_POLPR_STR-SUSPBEG_DT sy-vline 
WA_/PM0/PWS_POLPR_STR-SUSPEND_DT sy-vline 
WA_/PM0/PWS_POLPR_STR-SUSPTP_CD sy-vline 
WA_/PM0/PWS_POLPR_STR-TARGETDATE_DT sy-vline 
WA_/PM0/PWS_POLPR_STR-TARGRPB_CD sy-vline 
WA_/PM0/PWS_POLPR_STR-TAXEXEMPT_CD sy-vline 
WA_/PM0/PWS_POLPR_STR-PRODUCT_BASE_ID sy-vline 
WA_/PM0/PWS_POLPR_STR-RUNTIME_OBJECT_ID sy-vline 
WA_/PM0/PWS_POLPR_STR-CONTEXT_INFO sy-vline 
WA_/PM0/PWS_POLPR_STR-CONTROLLER sy-vline 
WA_/PM0/PWS_POLPR_STR-EFFECTIVE_DATE_FROM sy-vline 
WA_/PM0/PWS_POLPR_STR-EFFECTIVE_DATE_TO sy-vline 
WA_/PM0/PWS_POLPR_STR-POLPR_ABDAINFRD sy-vline 
WA_/PM0/PWS_POLPR_STR-POLPR_ABDACLAUSE sy-vline 
WA_/PM0/PWS_POLPR_STR-ABDACOVPAC sy-vline 
WA_/PM0/PWS_POLPR_STR-POLPR_ABDABASE sy-vline 
WA_/PM0/PWS_POLPR_STR-ABDAPPDSTL sy-vline 
WA_/PM0/PWS_POLPR_STR-ABDARESDEPC sy-vline 
WA_/PM0/PWS_POLPR_STR-POLPR_ABDADEDCTBL sy-vline 
WA_/PM0/PWS_POLPR_STR-POLPR_ABDAPREM sy-vline 
WA_/PM0/PWS_POLPR_STR-POLPR_ABDACHARGE sy-vline 
WA_/PM0/PWS_POLPR_STR-POLPR_ABDALIMIT sy-vline 
WA_/PM0/PWS_POLPR_STR-POLPR_ABDASUBJCT sy-vline 
WA_/PM0/PWS_POLPR_STR-APDAPOLPR sy-vline 
WA_/PM0/PWS_POLPR_STR-POLPR_ABDASUPDC sy-vline      INTO ld_text SEPARATED BY SPACE.

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