ABAP Select data from SAP table /SAPAPO/AMSAFTY_IO_STR into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SAPAPO/AMSAFTY_IO_STR 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 /SAPAPO/AMSAFTY_IO_STR. 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 /SAPAPO/AMSAFTY_IO_STR 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_/SAPAPO/AMSAFTY_IO_STR TYPE STANDARD TABLE OF /SAPAPO/AMSAFTY_IO_STR,
      WA_/SAPAPO/AMSAFTY_IO_STR TYPE /SAPAPO/AMSAFTY_IO_STR,
      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: </SAPAPO/AMSAFTY_IO_STR> TYPE /SAPAPO/AMSAFTY_IO_STR.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SAPAPO/AMSAFTY_IO_STR
  INTO TABLE IT_/SAPAPO/AMSAFTY_IO_STR.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPAPO/AMSAFTY_IO_STR
*  INTO TABLE @DATA(IT_/SAPAPO/AMSAFTY_IO_STR2).
*--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_/SAPAPO/AMSAFTY_IO_STR INDEX 1 INTO DATA(WA_/SAPAPO/AMSAFTY_IO_STR2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SAPAPO/AMSAFTY_IO_STR ASSIGNING </SAPAPO/AMSAFTY_IO_STR>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPAPO/AMSAFTY_IO_STR>-MANDT = 1.
</SAPAPO/AMSAFTY_IO_STR>-ALERT_SET = 1.
</SAPAPO/AMSAFTY_IO_STR>-PRIORITY = 1.
</SAPAPO/AMSAFTY_IO_STR>-MASTER = 1.
</SAPAPO/AMSAFTY_IO_STR>-ALERTDB = 1.

ENDLOOP.

LOOP AT IT_/SAPAPO/AMSAFTY_IO_STR INTO WA_/SAPAPO/AMSAFTY_IO_STR.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPAPO/AMSAFTY_IO_STR-STARTTST, sy-vline,
  WA_/SAPAPO/AMSAFTY_IO_STR-INTERVALL, sy-vline,
  WA_/SAPAPO/AMSAFTY_IO_STR-CALENDAR, sy-vline,
  WA_/SAPAPO/AMSAFTY_IO_STR-TIMETOREAD, sy-vline,
  WA_/SAPAPO/AMSAFTY_IO_STR-STARTDATE, sy-vline,
  WA_/SAPAPO/AMSAFTY_IO_STR-STARTTIME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPAPO/AMSAFTY_IO_STR 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_/SAPAPO/AMSAFTY_IO_STR 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_/SAPAPO/AMSAFTY_IO_STR INTO WA_/SAPAPO/AMSAFTY_IO_STR.


*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 SXIDN, internal->external for field EMAILADR
CALL FUNCTION 'CONVERSION_EXIT_SXIDN_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/AMSAFTY_IO_STR-EMAILADR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/AMSAFTY_IO_STR-EMAILADR.
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_/SAPAPO/AMSAFTY_IO_STR_STR, 
MANDT TYPE STRING,
ALERT_SET TYPE STRING,
PRIORITY TYPE STRING,
MASTER TYPE STRING,
ALERTDB TYPE STRING,
STARTTST TYPE STRING,
INTERVALL TYPE STRING,
CALENDAR TYPE STRING,
TIMETOREAD TYPE STRING,
STARTDATE TYPE STRING,
STARTTIME TYPE STRING,
ASSIGNMENT TYPE STRING,
NEXTTIME TYPE STRING,
NEXTTIMEDATE TYPE STRING,
NEXTTIMETIME TYPE STRING,
TIMELAST TYPE STRING,
EMAILADR TYPE STRING,
FILE_DIRECTORY TYPE STRING,
OBJCHG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPAPO/AMSAFTY_IO_STR_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_/SAPAPO/AMSAFTY_IO_STR_STR-MANDT sy-vline 
WA_/SAPAPO/AMSAFTY_IO_STR_STR-ALERT_SET sy-vline 
WA_/SAPAPO/AMSAFTY_IO_STR_STR-PRIORITY sy-vline 
WA_/SAPAPO/AMSAFTY_IO_STR_STR-MASTER sy-vline 
WA_/SAPAPO/AMSAFTY_IO_STR_STR-ALERTDB sy-vline 
WA_/SAPAPO/AMSAFTY_IO_STR_STR-STARTTST sy-vline 
WA_/SAPAPO/AMSAFTY_IO_STR_STR-INTERVALL sy-vline 
WA_/SAPAPO/AMSAFTY_IO_STR_STR-CALENDAR sy-vline 
WA_/SAPAPO/AMSAFTY_IO_STR_STR-TIMETOREAD sy-vline 
WA_/SAPAPO/AMSAFTY_IO_STR_STR-STARTDATE sy-vline 
WA_/SAPAPO/AMSAFTY_IO_STR_STR-STARTTIME sy-vline 
WA_/SAPAPO/AMSAFTY_IO_STR_STR-ASSIGNMENT sy-vline 
WA_/SAPAPO/AMSAFTY_IO_STR_STR-NEXTTIME sy-vline 
WA_/SAPAPO/AMSAFTY_IO_STR_STR-NEXTTIMEDATE sy-vline 
WA_/SAPAPO/AMSAFTY_IO_STR_STR-NEXTTIMETIME sy-vline 
WA_/SAPAPO/AMSAFTY_IO_STR_STR-TIMELAST sy-vline 
WA_/SAPAPO/AMSAFTY_IO_STR_STR-EMAILADR sy-vline 
WA_/SAPAPO/AMSAFTY_IO_STR_STR-FILE_DIRECTORY sy-vline 
WA_/SAPAPO/AMSAFTY_IO_STR_STR-OBJCHG sy-vline      INTO ld_text SEPARATED BY SPACE.

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