ABAP Select data from SAP table PSTKFRAMEGRID into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PSTKFRAMEGRID
*  INTO TABLE @DATA(IT_PSTKFRAMEGRID2).
*--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_PSTKFRAMEGRID INDEX 1 INTO DATA(WA_PSTKFRAMEGRID2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PSTKFRAMEGRID>-MANDT = 1.
<PSTKFRAMEGRID>-PERIODTYPE = 1.
<PSTKFRAMEGRID>-STARTDATE = 1.
<PSTKFRAMEGRID>-ENDDATE = 1.
<PSTKFRAMEGRID>-YEARPERIOD = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PSTKFRAMEGRID-INNERPERIOD, sy-vline,
  WA_PSTKFRAMEGRID-OUTERPERIOD, sy-vline,
  WA_PSTKFRAMEGRID-COMPRNPERIODSEQUENCENUMBERREF, sy-vline,
  WA_PSTKFRAMEGRID-COMPRNPERIODSEQUENCENUMBERPREV, sy-vline,
  WA_PSTKFRAMEGRID-YEARQUARTER, sy-vline,
  WA_PSTKFRAMEGRID-YEARQUARTERPREV, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PSTKFRAMEGRID 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_PSTKFRAMEGRID 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_PSTKFRAMEGRID INTO WA_PSTKFRAMEGRID.


*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_PSTKFRAMEGRID_STR, 
MANDT TYPE STRING,
PERIODTYPE TYPE STRING,
STARTDATE TYPE STRING,
ENDDATE TYPE STRING,
YEARPERIOD TYPE STRING,
INNERPERIOD TYPE STRING,
OUTERPERIOD TYPE STRING,
COMPRNPERIODSEQUENCENUMBERREF TYPE STRING,
COMPRNPERIODSEQUENCENUMBERPREV TYPE STRING,
YEARQUARTER TYPE STRING,
YEARQUARTERPREV TYPE STRING,
YEARMONTH TYPE STRING,
YEARMONTHPREV TYPE STRING,
DAYOFMONTH TYPE STRING,
DAYOFMONTHPREV TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PSTKFRAMEGRID_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_PSTKFRAMEGRID_STR-MANDT sy-vline 
WA_PSTKFRAMEGRID_STR-PERIODTYPE sy-vline 
WA_PSTKFRAMEGRID_STR-STARTDATE sy-vline 
WA_PSTKFRAMEGRID_STR-ENDDATE sy-vline 
WA_PSTKFRAMEGRID_STR-YEARPERIOD sy-vline 
WA_PSTKFRAMEGRID_STR-INNERPERIOD sy-vline 
WA_PSTKFRAMEGRID_STR-OUTERPERIOD sy-vline 
WA_PSTKFRAMEGRID_STR-COMPRNPERIODSEQUENCENUMBERREF sy-vline 
WA_PSTKFRAMEGRID_STR-COMPRNPERIODSEQUENCENUMBERPREV sy-vline 
WA_PSTKFRAMEGRID_STR-YEARQUARTER sy-vline 
WA_PSTKFRAMEGRID_STR-YEARQUARTERPREV sy-vline 
WA_PSTKFRAMEGRID_STR-YEARMONTH sy-vline 
WA_PSTKFRAMEGRID_STR-YEARMONTHPREV sy-vline 
WA_PSTKFRAMEGRID_STR-DAYOFMONTH sy-vline 
WA_PSTKFRAMEGRID_STR-DAYOFMONTHPREV sy-vline      INTO ld_text SEPARATED BY SPACE.

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