ABAP Select data from SAP table P08P_CLS_MONTHLY_PAY_FLAT into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P08P_CLS_MONTHLY_PAY_FLAT 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 P08P_CLS_MONTHLY_PAY_FLAT. 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 P08P_CLS_MONTHLY_PAY_FLAT 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_P08P_CLS_MONTHLY_PAY_FLAT TYPE STANDARD TABLE OF P08P_CLS_MONTHLY_PAY_FLAT,
      WA_P08P_CLS_MONTHLY_PAY_FLAT TYPE P08P_CLS_MONTHLY_PAY_FLAT,
      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: <P08P_CLS_MONTHLY_PAY_FLAT> TYPE P08P_CLS_MONTHLY_PAY_FLAT.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P08P_CLS_MONTHLY_PAY_FLAT.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P08P_CLS_MONTHLY_PAY_FLAT
  INTO TABLE IT_P08P_CLS_MONTHLY_PAY_FLAT.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P08P_CLS_MONTHLY_PAY_FLAT
*  INTO TABLE @DATA(IT_P08P_CLS_MONTHLY_PAY_FLAT2).
*--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_P08P_CLS_MONTHLY_PAY_FLAT INDEX 1 INTO DATA(WA_P08P_CLS_MONTHLY_PAY_FLAT2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P08P_CLS_MONTHLY_PAY_FLAT ASSIGNING <P08P_CLS_MONTHLY_PAY_FLAT>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P08P_CLS_MONTHLY_PAY_FLAT>-FLD01 = 1.
<P08P_CLS_MONTHLY_PAY_FLAT>-FLD02 = 1.
<P08P_CLS_MONTHLY_PAY_FLAT>-FLD03 = 1.
<P08P_CLS_MONTHLY_PAY_FLAT>-FLD04 = 1.
<P08P_CLS_MONTHLY_PAY_FLAT>-FLD05 = 1.

ENDLOOP.

LOOP AT IT_P08P_CLS_MONTHLY_PAY_FLAT INTO WA_P08P_CLS_MONTHLY_PAY_FLAT.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P08P_CLS_MONTHLY_PAY_FLAT-FLD06, sy-vline,
  WA_P08P_CLS_MONTHLY_PAY_FLAT-FLD07, sy-vline,
  WA_P08P_CLS_MONTHLY_PAY_FLAT-FLD08, sy-vline,
  WA_P08P_CLS_MONTHLY_PAY_FLAT-FLD09, sy-vline,
  WA_P08P_CLS_MONTHLY_PAY_FLAT-FLD10, sy-vline,
  WA_P08P_CLS_MONTHLY_PAY_FLAT-FLD11, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P08P_CLS_MONTHLY_PAY_FLAT 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_P08P_CLS_MONTHLY_PAY_FLAT 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_P08P_CLS_MONTHLY_PAY_FLAT INTO WA_P08P_CLS_MONTHLY_PAY_FLAT.


*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_P08P_CLS_MONTHLY_PAY_FLAT_STR, 
FLD01 TYPE STRING,
FLD02 TYPE STRING,
FLD03 TYPE STRING,
FLD04 TYPE STRING,
FLD05 TYPE STRING,
FLD06 TYPE STRING,
FLD07 TYPE STRING,
FLD08 TYPE STRING,
FLD09 TYPE STRING,
FLD10 TYPE STRING,
FLD11 TYPE STRING,
FLD12 TYPE STRING,
FLD13 TYPE STRING,
FLD14 TYPE STRING,
FLD15 TYPE STRING,
FLD16 TYPE STRING,
FLD17 TYPE STRING,
FLD18 TYPE STRING,
FLD19 TYPE STRING,
FLD20 TYPE STRING,
FLD21 TYPE STRING,
FLD22 TYPE STRING,
FLD23 TYPE STRING,
FLD24 TYPE STRING,
FLD25 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P08P_CLS_MONTHLY_PAY_FLAT_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_P08P_CLS_MONTHLY_PAY_FLAT_STR-FLD01 sy-vline 
WA_P08P_CLS_MONTHLY_PAY_FLAT_STR-FLD02 sy-vline 
WA_P08P_CLS_MONTHLY_PAY_FLAT_STR-FLD03 sy-vline 
WA_P08P_CLS_MONTHLY_PAY_FLAT_STR-FLD04 sy-vline 
WA_P08P_CLS_MONTHLY_PAY_FLAT_STR-FLD05 sy-vline 
WA_P08P_CLS_MONTHLY_PAY_FLAT_STR-FLD06 sy-vline 
WA_P08P_CLS_MONTHLY_PAY_FLAT_STR-FLD07 sy-vline 
WA_P08P_CLS_MONTHLY_PAY_FLAT_STR-FLD08 sy-vline 
WA_P08P_CLS_MONTHLY_PAY_FLAT_STR-FLD09 sy-vline 
WA_P08P_CLS_MONTHLY_PAY_FLAT_STR-FLD10 sy-vline 
WA_P08P_CLS_MONTHLY_PAY_FLAT_STR-FLD11 sy-vline 
WA_P08P_CLS_MONTHLY_PAY_FLAT_STR-FLD12 sy-vline 
WA_P08P_CLS_MONTHLY_PAY_FLAT_STR-FLD13 sy-vline 
WA_P08P_CLS_MONTHLY_PAY_FLAT_STR-FLD14 sy-vline 
WA_P08P_CLS_MONTHLY_PAY_FLAT_STR-FLD15 sy-vline 
WA_P08P_CLS_MONTHLY_PAY_FLAT_STR-FLD16 sy-vline 
WA_P08P_CLS_MONTHLY_PAY_FLAT_STR-FLD17 sy-vline 
WA_P08P_CLS_MONTHLY_PAY_FLAT_STR-FLD18 sy-vline 
WA_P08P_CLS_MONTHLY_PAY_FLAT_STR-FLD19 sy-vline 
WA_P08P_CLS_MONTHLY_PAY_FLAT_STR-FLD20 sy-vline 
WA_P08P_CLS_MONTHLY_PAY_FLAT_STR-FLD21 sy-vline 
WA_P08P_CLS_MONTHLY_PAY_FLAT_STR-FLD22 sy-vline 
WA_P08P_CLS_MONTHLY_PAY_FLAT_STR-FLD23 sy-vline 
WA_P08P_CLS_MONTHLY_PAY_FLAT_STR-FLD24 sy-vline 
WA_P08P_CLS_MONTHLY_PAY_FLAT_STR-FLD25 sy-vline      INTO ld_text SEPARATED BY SPACE.

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