ABAP Select data from SAP table OPS_SE_POLPVNOTIFRQ_IN_STY into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM OPS_SE_POLPVNOTIFRQ_IN_STY
*  INTO TABLE @DATA(IT_OPS_SE_POLPVNOTIFRQ_IN_STY2).
*--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_OPS_SE_POLPVNOTIFRQ_IN_STY INDEX 1 INTO DATA(WA_OPS_SE_POLPVNOTIFRQ_IN_STY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<OPS_SE_POLPVNOTIFRQ_IN_STY>-SENDER_SYSTEM = 1.
<OPS_SE_POLPVNOTIFRQ_IN_STY>-TECHN_CONTROL = 1.
<OPS_SE_POLPVNOTIFRQ_IN_STY>-DEBUG_FLG = 1.
<OPS_SE_POLPVNOTIFRQ_IN_STY>-UPD_IND = 1.
<OPS_SE_POLPVNOTIFRQ_IN_STY>-RECV_WHS_NO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_OPS_SE_POLPVNOTIFRQ_IN_STY-RECV_SYS, sy-vline,
  WA_OPS_SE_POLPVNOTIFRQ_IN_STY-DLV_TYPE, sy-vline,
  WA_OPS_SE_POLPVNOTIFRQ_IN_STY-INTERNAL_QUEUE, sy-vline,
  WA_OPS_SE_POLPVNOTIFRQ_IN_STY-SERVICE_CALL, sy-vline,
  WA_OPS_SE_POLPVNOTIFRQ_IN_STY-DLV_DATE_FROM, sy-vline,
  WA_OPS_SE_POLPVNOTIFRQ_IN_STY-DLV_DATE_TO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_OPS_SE_POLPVNOTIFRQ_IN_STY 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_OPS_SE_POLPVNOTIFRQ_IN_STY 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_OPS_SE_POLPVNOTIFRQ_IN_STY INTO WA_OPS_SE_POLPVNOTIFRQ_IN_STY.


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

*Conversion exit ALPHA, internal->external for field RECV_SYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_OPS_SE_POLPVNOTIFRQ_IN_STY-RECV_SYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OPS_SE_POLPVNOTIFRQ_IN_STY-RECV_SYS.
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_OPS_SE_POLPVNOTIFRQ_IN_STY_STR, 
SENDER_SYSTEM TYPE STRING,
TECHN_CONTROL TYPE STRING,
DEBUG_FLG TYPE STRING,
UPD_IND TYPE STRING,
RECV_WHS_NO TYPE STRING,
RECV_SYS TYPE STRING,
DLV_TYPE TYPE STRING,
INTERNAL_QUEUE TYPE STRING,
SERVICE_CALL TYPE STRING,
DLV_DATE_FROM TYPE STRING,
DLV_DATE_TO TYPE STRING,
PO_NUMBER TYPE STRING,
IS_PURCHASE_ORDER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_OPS_SE_POLPVNOTIFRQ_IN_STY_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_OPS_SE_POLPVNOTIFRQ_IN_STY_STR-SENDER_SYSTEM sy-vline 
WA_OPS_SE_POLPVNOTIFRQ_IN_STY_STR-TECHN_CONTROL sy-vline 
WA_OPS_SE_POLPVNOTIFRQ_IN_STY_STR-DEBUG_FLG sy-vline 
WA_OPS_SE_POLPVNOTIFRQ_IN_STY_STR-UPD_IND sy-vline 
WA_OPS_SE_POLPVNOTIFRQ_IN_STY_STR-RECV_WHS_NO sy-vline 
WA_OPS_SE_POLPVNOTIFRQ_IN_STY_STR-RECV_SYS sy-vline 
WA_OPS_SE_POLPVNOTIFRQ_IN_STY_STR-DLV_TYPE sy-vline 
WA_OPS_SE_POLPVNOTIFRQ_IN_STY_STR-INTERNAL_QUEUE sy-vline 
WA_OPS_SE_POLPVNOTIFRQ_IN_STY_STR-SERVICE_CALL sy-vline 
WA_OPS_SE_POLPVNOTIFRQ_IN_STY_STR-DLV_DATE_FROM sy-vline 
WA_OPS_SE_POLPVNOTIFRQ_IN_STY_STR-DLV_DATE_TO sy-vline 
WA_OPS_SE_POLPVNOTIFRQ_IN_STY_STR-PO_NUMBER sy-vline 
WA_OPS_SE_POLPVNOTIFRQ_IN_STY_STR-IS_PURCHASE_ORDER sy-vline      INTO ld_text SEPARATED BY SPACE.

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