ABAP Select data from SAP table PPSDAYS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PPSDAYS
*  INTO TABLE @DATA(IT_PPSDAYS2).
*--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_PPSDAYS INDEX 1 INTO DATA(WA_PPSDAYS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PPSDAYS>-MANDT = 1.
<PPSDAYS>-COMPANYCODE = 1.
<PPSDAYS>-PAYEEBANKINTERNALID = 1.
<PPSDAYS>-BANKKEY = 1.
<PPSDAYS>-BANKCOUNTRYKEY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PPSDAYS-PAYMENTMETHOD, sy-vline,
  WA_PPSDAYS-PAYMENTBATCH, sy-vline,
  WA_PPSDAYS-PAYMENTBATCHRULE, sy-vline,
  WA_PPSDAYS-NUMBEROFPAYMENTS, sy-vline,
  WA_PPSDAYS-GENERALSTATUS, sy-vline,
  WA_PPSDAYS-PAYMENTPROCESSINGSTATUS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PPSDAYS 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_PPSDAYS 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_PPSDAYS INTO WA_PPSDAYS.


*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 PAYMENTBATCHRULE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PPSDAYS-PAYMENTBATCHRULE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPSDAYS-PAYMENTBATCHRULE.
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_PPSDAYS_STR, 
MANDT TYPE STRING,
COMPANYCODE TYPE STRING,
PAYEEBANKINTERNALID TYPE STRING,
BANKKEY TYPE STRING,
BANKCOUNTRYKEY TYPE STRING,
PAYMENTMETHOD TYPE STRING,
PAYMENTBATCH TYPE STRING,
PAYMENTBATCHRULE TYPE STRING,
NUMBEROFPAYMENTS TYPE STRING,
GENERALSTATUS TYPE STRING,
PAYMENTPROCESSINGSTATUS TYPE STRING,
ISURGENTPAYMENT TYPE STRING,
CREATIONDATE TYPE STRING,
LASTCHANGEDATE TYPE STRING,
NUMBEROFDAYSINPERIOD TYPE STRING,
PAYMENTCURRENCY TYPE STRING,
AMOUNTINPAYMENTCURRENCY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PPSDAYS_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_PPSDAYS_STR-MANDT sy-vline 
WA_PPSDAYS_STR-COMPANYCODE sy-vline 
WA_PPSDAYS_STR-PAYEEBANKINTERNALID sy-vline 
WA_PPSDAYS_STR-BANKKEY sy-vline 
WA_PPSDAYS_STR-BANKCOUNTRYKEY sy-vline 
WA_PPSDAYS_STR-PAYMENTMETHOD sy-vline 
WA_PPSDAYS_STR-PAYMENTBATCH sy-vline 
WA_PPSDAYS_STR-PAYMENTBATCHRULE sy-vline 
WA_PPSDAYS_STR-NUMBEROFPAYMENTS sy-vline 
WA_PPSDAYS_STR-GENERALSTATUS sy-vline 
WA_PPSDAYS_STR-PAYMENTPROCESSINGSTATUS sy-vline 
WA_PPSDAYS_STR-ISURGENTPAYMENT sy-vline 
WA_PPSDAYS_STR-CREATIONDATE sy-vline 
WA_PPSDAYS_STR-LASTCHANGEDATE sy-vline 
WA_PPSDAYS_STR-NUMBEROFDAYSINPERIOD sy-vline 
WA_PPSDAYS_STR-PAYMENTCURRENCY sy-vline 
WA_PPSDAYS_STR-AMOUNTINPAYMENTCURRENCY sy-vline      INTO ld_text SEPARATED BY SPACE.

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