ABAP Select data from SAP table PSDPERFREQDEL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PSDPERFREQDEL
*  INTO TABLE @DATA(IT_PSDPERFREQDEL2).
*--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_PSDPERFREQDEL INDEX 1 INTO DATA(WA_PSDPERFREQDEL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PSDPERFREQDEL>-MANDT = 1.
<PSDPERFREQDEL>-SALESORDER = 1.
<PSDPERFREQDEL>-SALESORDERITEM = 1.
<PSDPERFREQDEL>-SOLDTOPARTY = 1.
<PSDPERFREQDEL>-SALESORGANIZATION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PSDPERFREQDEL-DISTRIBUTIONCHANNEL, sy-vline,
  WA_PSDPERFREQDEL-ORGANIZATIONDIVISION, sy-vline,
  WA_PSDPERFREQDEL-SALESOFFICE, sy-vline,
  WA_PSDPERFREQDEL-SALESGROUP, sy-vline,
  WA_PSDPERFREQDEL-EARLIESTREQDDELIVDATE, sy-vline,
  WA_PSDPERFREQDEL-NMBROFDLVRDASREQDSLSDOCITEMS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PSDPERFREQDEL 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_PSDPERFREQDEL 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_PSDPERFREQDEL INTO WA_PSDPERFREQDEL.


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

*Conversion exit ALPHA, internal->external for field SOLDTOPARTY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PSDPERFREQDEL-SOLDTOPARTY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSDPERFREQDEL-SOLDTOPARTY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AUART, internal->external for field SALESDOCUMENTTYPE
CALL FUNCTION 'CONVERSION_EXIT_AUART_OUTPUT'
  EXPORTING
    input =                      WA_PSDPERFREQDEL-SALESDOCUMENTTYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSDPERFREQDEL-SALESDOCUMENTTYPE.
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_PSDPERFREQDEL_STR, 
MANDT TYPE STRING,
SALESORDER TYPE STRING,
SALESORDERITEM TYPE STRING,
SOLDTOPARTY TYPE STRING,
SALESORGANIZATION TYPE STRING,
DISTRIBUTIONCHANNEL TYPE STRING,
ORGANIZATIONDIVISION TYPE STRING,
SALESOFFICE TYPE STRING,
SALESGROUP TYPE STRING,
EARLIESTREQDDELIVDATE TYPE STRING,
NMBROFDLVRDASREQDSLSDOCITEMS TYPE STRING,
NUMBEROFINCOMINGSLSORDERITEMS TYPE STRING,
SLSDOCITEMSDLVRDASREQDRATIO TYPE STRING,
YEARMONTH TYPE STRING,
YEARQUARTER TYPE STRING,
CALENDARQUARTER TYPE STRING,
CALENDARYEAR TYPE STRING,
SLSDOCITMDELIVFLFMTSTS TYPE STRING,
SALESDOCUMENTTYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PSDPERFREQDEL_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_PSDPERFREQDEL_STR-MANDT sy-vline 
WA_PSDPERFREQDEL_STR-SALESORDER sy-vline 
WA_PSDPERFREQDEL_STR-SALESORDERITEM sy-vline 
WA_PSDPERFREQDEL_STR-SOLDTOPARTY sy-vline 
WA_PSDPERFREQDEL_STR-SALESORGANIZATION sy-vline 
WA_PSDPERFREQDEL_STR-DISTRIBUTIONCHANNEL sy-vline 
WA_PSDPERFREQDEL_STR-ORGANIZATIONDIVISION sy-vline 
WA_PSDPERFREQDEL_STR-SALESOFFICE sy-vline 
WA_PSDPERFREQDEL_STR-SALESGROUP sy-vline 
WA_PSDPERFREQDEL_STR-EARLIESTREQDDELIVDATE sy-vline 
WA_PSDPERFREQDEL_STR-NMBROFDLVRDASREQDSLSDOCITEMS sy-vline 
WA_PSDPERFREQDEL_STR-NUMBEROFINCOMINGSLSORDERITEMS sy-vline 
WA_PSDPERFREQDEL_STR-SLSDOCITEMSDLVRDASREQDRATIO sy-vline 
WA_PSDPERFREQDEL_STR-YEARMONTH sy-vline 
WA_PSDPERFREQDEL_STR-YEARQUARTER sy-vline 
WA_PSDPERFREQDEL_STR-CALENDARQUARTER sy-vline 
WA_PSDPERFREQDEL_STR-CALENDARYEAR sy-vline 
WA_PSDPERFREQDEL_STR-SLSDOCITMDELIVFLFMTSTS sy-vline 
WA_PSDPERFREQDEL_STR-SALESDOCUMENTTYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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