ABAP Select data from SAP table /PM0/PWS_COV 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_COV 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_COV. 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_COV 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_COV TYPE STANDARD TABLE OF /PM0/PWS_COV,
      WA_/PM0/PWS_COV TYPE /PM0/PWS_COV,
      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_COV> TYPE /PM0/PWS_COV.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /PM0/PWS_COV
*  INTO TABLE @DATA(IT_/PM0/PWS_COV2).
*--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_COV INDEX 1 INTO DATA(WA_/PM0/PWS_COV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</PM0/PWS_COV>-CONTROLLER = 1.
</PM0/PWS_COV>-ACTINACTST_CD = 1.
</PM0/PWS_COV>-AGEATEXPIRAT_VL = 1.
</PM0/PWS_COV>-AGEENTMETHOD_ID = 1.
</PM0/PWS_COV>-COUNTRY_CD = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/PM0/PWS_COV-COVBEG_DT, sy-vline,
  WA_/PM0/PWS_COV-COVCPTYPE_CD, sy-vline,
  WA_/PM0/PWS_COV-COVEND_DT, sy-vline,
  WA_/PM0/PWS_COV-COVNUM_VL, sy-vline,
  WA_/PM0/PWS_COV-COVSTATUS_CD, sy-vline,
  WA_/PM0/PWS_COV-GENERATIO_DET_DT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/PM0/PWS_COV 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_COV 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_COV INTO WA_/PM0/PWS_COV.


*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_COV_STR, 
CONTROLLER TYPE STRING,
ACTINACTST_CD TYPE STRING,
AGEATEXPIRAT_VL TYPE STRING,
AGEENTMETHOD_ID TYPE STRING,
COUNTRY_CD TYPE STRING,
COVBEG_DT TYPE STRING,
COVCPTYPE_CD TYPE STRING,
COVEND_DT TYPE STRING,
COVNUM_VL TYPE STRING,
COVSTATUS_CD TYPE STRING,
GENERATIO_DET_DT TYPE STRING,
ICC_CD TYPE STRING,
INCAPWORK_VL TYPE STRING,
INDEMNITYPERI_CD TYPE STRING,
INF_FG TYPE STRING,
INSURANCE_TP TYPE STRING,
LIAPERIMONTHS_VL TYPE STRING,
POLPRC_CD TYPE STRING,
SCALE_CD TYPE STRING,
SHORTTERM_FG TYPE STRING,
SUSPBEG_DT TYPE STRING,
SUSPEND_DT TYPE STRING,
SUSPTP_CD TYPE STRING,
TECHEND_DT TYPE STRING,
PRODUCT_BASE_ID TYPE STRING,
RUNTIME_OBJECT_ID TYPE STRING,
COV_ABDASUBJCT TYPE STRING,
COV_ABDABASE TYPE STRING,
ABDAREPVAL TYPE STRING,
COV_ABDACLAUSE TYPE STRING,
COV_ABDASUPDC TYPE STRING,
COV_ABDAINFRD TYPE STRING,
APDACOV TYPE STRING,
COV_ABDACHARGE TYPE STRING,
COV_ABDALIMIT TYPE STRING,
COV_ABDADEDCTBL TYPE STRING,
COV_ABDAPREM TYPE STRING,
ABDACOVCPCO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/PM0/PWS_COV_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_COV_STR-CONTROLLER sy-vline 
WA_/PM0/PWS_COV_STR-ACTINACTST_CD sy-vline 
WA_/PM0/PWS_COV_STR-AGEATEXPIRAT_VL sy-vline 
WA_/PM0/PWS_COV_STR-AGEENTMETHOD_ID sy-vline 
WA_/PM0/PWS_COV_STR-COUNTRY_CD sy-vline 
WA_/PM0/PWS_COV_STR-COVBEG_DT sy-vline 
WA_/PM0/PWS_COV_STR-COVCPTYPE_CD sy-vline 
WA_/PM0/PWS_COV_STR-COVEND_DT sy-vline 
WA_/PM0/PWS_COV_STR-COVNUM_VL sy-vline 
WA_/PM0/PWS_COV_STR-COVSTATUS_CD sy-vline 
WA_/PM0/PWS_COV_STR-GENERATIO_DET_DT sy-vline 
WA_/PM0/PWS_COV_STR-ICC_CD sy-vline 
WA_/PM0/PWS_COV_STR-INCAPWORK_VL sy-vline 
WA_/PM0/PWS_COV_STR-INDEMNITYPERI_CD sy-vline 
WA_/PM0/PWS_COV_STR-INF_FG sy-vline 
WA_/PM0/PWS_COV_STR-INSURANCE_TP sy-vline 
WA_/PM0/PWS_COV_STR-LIAPERIMONTHS_VL sy-vline 
WA_/PM0/PWS_COV_STR-POLPRC_CD sy-vline 
WA_/PM0/PWS_COV_STR-SCALE_CD sy-vline 
WA_/PM0/PWS_COV_STR-SHORTTERM_FG sy-vline 
WA_/PM0/PWS_COV_STR-SUSPBEG_DT sy-vline 
WA_/PM0/PWS_COV_STR-SUSPEND_DT sy-vline 
WA_/PM0/PWS_COV_STR-SUSPTP_CD sy-vline 
WA_/PM0/PWS_COV_STR-TECHEND_DT sy-vline 
WA_/PM0/PWS_COV_STR-PRODUCT_BASE_ID sy-vline 
WA_/PM0/PWS_COV_STR-RUNTIME_OBJECT_ID sy-vline 
WA_/PM0/PWS_COV_STR-COV_ABDASUBJCT sy-vline 
WA_/PM0/PWS_COV_STR-COV_ABDABASE sy-vline 
WA_/PM0/PWS_COV_STR-ABDAREPVAL sy-vline 
WA_/PM0/PWS_COV_STR-COV_ABDACLAUSE sy-vline 
WA_/PM0/PWS_COV_STR-COV_ABDASUPDC sy-vline 
WA_/PM0/PWS_COV_STR-COV_ABDAINFRD sy-vline 
WA_/PM0/PWS_COV_STR-APDACOV sy-vline 
WA_/PM0/PWS_COV_STR-COV_ABDACHARGE sy-vline 
WA_/PM0/PWS_COV_STR-COV_ABDALIMIT sy-vline 
WA_/PM0/PWS_COV_STR-COV_ABDADEDCTBL sy-vline 
WA_/PM0/PWS_COV_STR-COV_ABDAPREM sy-vline 
WA_/PM0/PWS_COV_STR-ABDACOVCPCO sy-vline      INTO ld_text SEPARATED BY SPACE.

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