ABAP Select data from SAP table P22_FEATURE_F4 into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP P22_FEATURE_F4 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 P22_FEATURE_F4. 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 P22_FEATURE_F4 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_P22_FEATURE_F4 TYPE STANDARD TABLE OF P22_FEATURE_F4,
      WA_P22_FEATURE_F4 TYPE P22_FEATURE_F4,
      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: <P22_FEATURE_F4> TYPE P22_FEATURE_F4.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P22_FEATURE_F4.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P22_FEATURE_F4
  INTO TABLE IT_P22_FEATURE_F4.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P22_FEATURE_F4
*  INTO TABLE @DATA(IT_P22_FEATURE_F42).
*--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_P22_FEATURE_F4 INDEX 1 INTO DATA(WA_P22_FEATURE_F42).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P22_FEATURE_F4 ASSIGNING <P22_FEATURE_F4>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P22_FEATURE_F4>-22RWG = 1.
<P22_FEATURE_F4>-22RWT = 1.
<P22_FEATURE_F4>-22SWG = 1.
<P22_FEATURE_F4>-22SWT = 1.
<P22_FEATURE_F4>-22TXA = 1.

ENDLOOP.

LOOP AT IT_P22_FEATURE_F4 INTO WA_P22_FEATURE_F4.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P22_FEATURE_F4-22INS, sy-vline,
  WA_P22_FEATURE_F4-22NAT, sy-vline,
  WA_P22_FEATURE_F4-22YSL, sy-vline,
  WA_P22_FEATURE_F4-JKING, sy-vline,
  WA_P22_FEATURE_F4-22SIP, sy-vline,
  WA_P22_FEATURE_F4-22CCR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P22_FEATURE_F4 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_P22_FEATURE_F4 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_P22_FEATURE_F4 INTO WA_P22_FEATURE_F4.


*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_P22_FEATURE_F4_STR, 
22RWG TYPE STRING,
22RWT TYPE STRING,
22SWG TYPE STRING,
22SWT TYPE STRING,
22TXA TYPE STRING,
22INS TYPE STRING,
22NAT TYPE STRING,
22YSL TYPE STRING,
JKING TYPE STRING,
22SIP TYPE STRING,
22CCR TYPE STRING,
22RPF TYPE STRING,
22FLX TYPE STRING,
22VKY TYPE STRING,
22JOB TYPE STRING,
ITMUS TYPE STRING,
22TPJ TYPE STRING,
22TPF TYPE STRING,
22CPP TYPE STRING,
22EBO TYPE STRING,
22EMP TYPE STRING,
22DIS TYPE STRING,
JPAHS TYPE STRING,
JLOLP TYPE STRING,
22SIS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P22_FEATURE_F4_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_P22_FEATURE_F4_STR-22RWG sy-vline 
WA_P22_FEATURE_F4_STR-22RWT sy-vline 
WA_P22_FEATURE_F4_STR-22SWG sy-vline 
WA_P22_FEATURE_F4_STR-22SWT sy-vline 
WA_P22_FEATURE_F4_STR-22TXA sy-vline 
WA_P22_FEATURE_F4_STR-22INS sy-vline 
WA_P22_FEATURE_F4_STR-22NAT sy-vline 
WA_P22_FEATURE_F4_STR-22YSL sy-vline 
WA_P22_FEATURE_F4_STR-JKING sy-vline 
WA_P22_FEATURE_F4_STR-22SIP sy-vline 
WA_P22_FEATURE_F4_STR-22CCR sy-vline 
WA_P22_FEATURE_F4_STR-22RPF sy-vline 
WA_P22_FEATURE_F4_STR-22FLX sy-vline 
WA_P22_FEATURE_F4_STR-22VKY sy-vline 
WA_P22_FEATURE_F4_STR-22JOB sy-vline 
WA_P22_FEATURE_F4_STR-ITMUS sy-vline 
WA_P22_FEATURE_F4_STR-22TPJ sy-vline 
WA_P22_FEATURE_F4_STR-22TPF sy-vline 
WA_P22_FEATURE_F4_STR-22CPP sy-vline 
WA_P22_FEATURE_F4_STR-22EBO sy-vline 
WA_P22_FEATURE_F4_STR-22EMP sy-vline 
WA_P22_FEATURE_F4_STR-22DIS sy-vline 
WA_P22_FEATURE_F4_STR-JPAHS sy-vline 
WA_P22_FEATURE_F4_STR-JLOLP sy-vline 
WA_P22_FEATURE_F4_STR-22SIS sy-vline      INTO ld_text SEPARATED BY SPACE.

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