ABAP Select data from SAP table SZTG_OSTR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SZTG_OSTR
*  INTO TABLE @DATA(IT_SZTG_OSTR2).
*--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_SZTG_OSTR INDEX 1 INTO DATA(WA_SZTG_OSTR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SZTG_OSTR>-TIME = 1.
<SZTG_OSTR>-COLORS = 1.
<SZTG_OSTR>-SLOT01 = 1.
<SZTG_OSTR>-APPT_ID = 1.
<SZTG_OSTR>-TEXT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SZTG_OSTR-ICON1, sy-vline,
  WA_SZTG_OSTR-ICON2, sy-vline,
  WA_SZTG_OSTR-ICON3, sy-vline,
  WA_SZTG_OSTR-SLOT02, sy-vline,
  WA_SZTG_OSTR-APPT_ID, sy-vline,
  WA_SZTG_OSTR-TEXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SZTG_OSTR 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_SZTG_OSTR 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_SZTG_OSTR INTO WA_SZTG_OSTR.


*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_SZTG_OSTR_STR, 
TIME TYPE STRING,
COLORS TYPE STRING,
SLOT01 TYPE STRING,
APPT_ID TYPE STRING,
TEXT TYPE STRING,
ICON1 TYPE STRING,
ICON2 TYPE STRING,
ICON3 TYPE STRING,
SLOT02 TYPE STRING,
APPT_ID TYPE STRING,
TEXT TYPE STRING,
ICON1 TYPE STRING,
ICON2 TYPE STRING,
ICON3 TYPE STRING,
SLOT03 TYPE STRING,
APPT_ID TYPE STRING,
TEXT TYPE STRING,
ICON1 TYPE STRING,
ICON2 TYPE STRING,
ICON3 TYPE STRING,
SLOT04 TYPE STRING,
APPT_ID TYPE STRING,
TEXT TYPE STRING,
ICON1 TYPE STRING,
ICON2 TYPE STRING,
ICON3 TYPE STRING,
SLOT05 TYPE STRING,
APPT_ID TYPE STRING,
TEXT TYPE STRING,
ICON1 TYPE STRING,
ICON2 TYPE STRING,
ICON3 TYPE STRING,
SLOT06 TYPE STRING,
APPT_ID TYPE STRING,
TEXT TYPE STRING,
ICON1 TYPE STRING,
ICON2 TYPE STRING,
ICON3 TYPE STRING,
SLOT07 TYPE STRING,
APPT_ID TYPE STRING,
TEXT TYPE STRING,
ICON1 TYPE STRING,
ICON2 TYPE STRING,
ICON3 TYPE STRING,
SLOT08 TYPE STRING,
APPT_ID TYPE STRING,
TEXT TYPE STRING,
ICON1 TYPE STRING,
ICON2 TYPE STRING,
ICON3 TYPE STRING,
SLOT09 TYPE STRING,
APPT_ID TYPE STRING,
TEXT TYPE STRING,
ICON1 TYPE STRING,
ICON2 TYPE STRING,
ICON3 TYPE STRING,
SLOT10 TYPE STRING,
APPT_ID TYPE STRING,
TEXT TYPE STRING,
ICON1 TYPE STRING,
ICON2 TYPE STRING,
ICON3 TYPE STRING,
SLOT11 TYPE STRING,
APPT_ID TYPE STRING,
TEXT TYPE STRING,
ICON1 TYPE STRING,
ICON2 TYPE STRING,
ICON3 TYPE STRING,
SLOT12 TYPE STRING,
APPT_ID TYPE STRING,
TEXT TYPE STRING,
ICON1 TYPE STRING,
ICON2 TYPE STRING,
ICON3 TYPE STRING,
SLOT13 TYPE STRING,
APPT_ID TYPE STRING,
TEXT TYPE STRING,
ICON1 TYPE STRING,
ICON2 TYPE STRING,
ICON3 TYPE STRING,
SLOT14 TYPE STRING,
APPT_ID TYPE STRING,
TEXT TYPE STRING,
ICON1 TYPE STRING,
ICON2 TYPE STRING,
ICON3 TYPE STRING,
SLOT15 TYPE STRING,
APPT_ID TYPE STRING,
TEXT TYPE STRING,
ICON1 TYPE STRING,
ICON2 TYPE STRING,
ICON3 TYPE STRING,
SLOT16 TYPE STRING,
APPT_ID TYPE STRING,
TEXT TYPE STRING,
ICON1 TYPE STRING,
ICON2 TYPE STRING,
ICON3 TYPE STRING,
SLOT17 TYPE STRING,
APPT_ID TYPE STRING,
TEXT TYPE STRING,
ICON1 TYPE STRING,
ICON2 TYPE STRING,
ICON3 TYPE STRING,
SLOT18 TYPE STRING,
APPT_ID TYPE STRING,
TEXT TYPE STRING,
ICON1 TYPE STRING,
ICON2 TYPE STRING,
ICON3 TYPE STRING,
SLOT19 TYPE STRING,
APPT_ID TYPE STRING,
TEXT TYPE STRING,
ICON1 TYPE STRING,
ICON2 TYPE STRING,
ICON3 TYPE STRING,
SLOT20 TYPE STRING,
APPT_ID TYPE STRING,
TEXT TYPE STRING,
ICON1 TYPE STRING,
ICON2 TYPE STRING,
ICON3 TYPE STRING,
SLOT21 TYPE STRING,
APPT_ID TYPE STRING,
TEXT TYPE STRING,
ICON1 TYPE STRING,
ICON2 TYPE STRING,
ICON3 TYPE STRING,
SLOT22 TYPE STRING,
APPT_ID TYPE STRING,
TEXT TYPE STRING,
ICON1 TYPE STRING,
ICON2 TYPE STRING,
ICON3 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SZTG_OSTR_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_SZTG_OSTR_STR-TIME sy-vline 
WA_SZTG_OSTR_STR-COLORS sy-vline 
WA_SZTG_OSTR_STR-SLOT01 sy-vline 
WA_SZTG_OSTR_STR-APPT_ID sy-vline 
WA_SZTG_OSTR_STR-TEXT sy-vline 
WA_SZTG_OSTR_STR-ICON1 sy-vline 
WA_SZTG_OSTR_STR-ICON2 sy-vline 
WA_SZTG_OSTR_STR-ICON3 sy-vline 
WA_SZTG_OSTR_STR-SLOT02 sy-vline 
WA_SZTG_OSTR_STR-APPT_ID sy-vline 
WA_SZTG_OSTR_STR-TEXT sy-vline 
WA_SZTG_OSTR_STR-ICON1 sy-vline 
WA_SZTG_OSTR_STR-ICON2 sy-vline 
WA_SZTG_OSTR_STR-ICON3 sy-vline 
WA_SZTG_OSTR_STR-SLOT03 sy-vline 
WA_SZTG_OSTR_STR-APPT_ID sy-vline 
WA_SZTG_OSTR_STR-TEXT sy-vline 
WA_SZTG_OSTR_STR-ICON1 sy-vline 
WA_SZTG_OSTR_STR-ICON2 sy-vline 
WA_SZTG_OSTR_STR-ICON3 sy-vline 
WA_SZTG_OSTR_STR-SLOT04 sy-vline 
WA_SZTG_OSTR_STR-APPT_ID sy-vline 
WA_SZTG_OSTR_STR-TEXT sy-vline 
WA_SZTG_OSTR_STR-ICON1 sy-vline 
WA_SZTG_OSTR_STR-ICON2 sy-vline 
WA_SZTG_OSTR_STR-ICON3 sy-vline 
WA_SZTG_OSTR_STR-SLOT05 sy-vline 
WA_SZTG_OSTR_STR-APPT_ID sy-vline 
WA_SZTG_OSTR_STR-TEXT sy-vline 
WA_SZTG_OSTR_STR-ICON1 sy-vline 
WA_SZTG_OSTR_STR-ICON2 sy-vline 
WA_SZTG_OSTR_STR-ICON3 sy-vline 
WA_SZTG_OSTR_STR-SLOT06 sy-vline 
WA_SZTG_OSTR_STR-APPT_ID sy-vline 
WA_SZTG_OSTR_STR-TEXT sy-vline 
WA_SZTG_OSTR_STR-ICON1 sy-vline 
WA_SZTG_OSTR_STR-ICON2 sy-vline 
WA_SZTG_OSTR_STR-ICON3 sy-vline 
WA_SZTG_OSTR_STR-SLOT07 sy-vline 
WA_SZTG_OSTR_STR-APPT_ID sy-vline 
WA_SZTG_OSTR_STR-TEXT sy-vline 
WA_SZTG_OSTR_STR-ICON1 sy-vline 
WA_SZTG_OSTR_STR-ICON2 sy-vline 
WA_SZTG_OSTR_STR-ICON3 sy-vline 
WA_SZTG_OSTR_STR-SLOT08 sy-vline 
WA_SZTG_OSTR_STR-APPT_ID sy-vline 
WA_SZTG_OSTR_STR-TEXT sy-vline 
WA_SZTG_OSTR_STR-ICON1 sy-vline 
WA_SZTG_OSTR_STR-ICON2 sy-vline 
WA_SZTG_OSTR_STR-ICON3 sy-vline 
WA_SZTG_OSTR_STR-SLOT09 sy-vline 
WA_SZTG_OSTR_STR-APPT_ID sy-vline 
WA_SZTG_OSTR_STR-TEXT sy-vline 
WA_SZTG_OSTR_STR-ICON1 sy-vline 
WA_SZTG_OSTR_STR-ICON2 sy-vline 
WA_SZTG_OSTR_STR-ICON3 sy-vline 
WA_SZTG_OSTR_STR-SLOT10 sy-vline 
WA_SZTG_OSTR_STR-APPT_ID sy-vline 
WA_SZTG_OSTR_STR-TEXT sy-vline 
WA_SZTG_OSTR_STR-ICON1 sy-vline 
WA_SZTG_OSTR_STR-ICON2 sy-vline 
WA_SZTG_OSTR_STR-ICON3 sy-vline 
WA_SZTG_OSTR_STR-SLOT11 sy-vline 
WA_SZTG_OSTR_STR-APPT_ID sy-vline 
WA_SZTG_OSTR_STR-TEXT sy-vline 
WA_SZTG_OSTR_STR-ICON1 sy-vline 
WA_SZTG_OSTR_STR-ICON2 sy-vline 
WA_SZTG_OSTR_STR-ICON3 sy-vline 
WA_SZTG_OSTR_STR-SLOT12 sy-vline 
WA_SZTG_OSTR_STR-APPT_ID sy-vline 
WA_SZTG_OSTR_STR-TEXT sy-vline 
WA_SZTG_OSTR_STR-ICON1 sy-vline 
WA_SZTG_OSTR_STR-ICON2 sy-vline 
WA_SZTG_OSTR_STR-ICON3 sy-vline 
WA_SZTG_OSTR_STR-SLOT13 sy-vline 
WA_SZTG_OSTR_STR-APPT_ID sy-vline 
WA_SZTG_OSTR_STR-TEXT sy-vline 
WA_SZTG_OSTR_STR-ICON1 sy-vline 
WA_SZTG_OSTR_STR-ICON2 sy-vline 
WA_SZTG_OSTR_STR-ICON3 sy-vline 
WA_SZTG_OSTR_STR-SLOT14 sy-vline 
WA_SZTG_OSTR_STR-APPT_ID sy-vline 
WA_SZTG_OSTR_STR-TEXT sy-vline 
WA_SZTG_OSTR_STR-ICON1 sy-vline 
WA_SZTG_OSTR_STR-ICON2 sy-vline 
WA_SZTG_OSTR_STR-ICON3 sy-vline 
WA_SZTG_OSTR_STR-SLOT15 sy-vline 
WA_SZTG_OSTR_STR-APPT_ID sy-vline 
WA_SZTG_OSTR_STR-TEXT sy-vline 
WA_SZTG_OSTR_STR-ICON1 sy-vline 
WA_SZTG_OSTR_STR-ICON2 sy-vline 
WA_SZTG_OSTR_STR-ICON3 sy-vline 
WA_SZTG_OSTR_STR-SLOT16 sy-vline 
WA_SZTG_OSTR_STR-APPT_ID sy-vline 
WA_SZTG_OSTR_STR-TEXT sy-vline 
WA_SZTG_OSTR_STR-ICON1 sy-vline 
WA_SZTG_OSTR_STR-ICON2 sy-vline 
WA_SZTG_OSTR_STR-ICON3 sy-vline 
WA_SZTG_OSTR_STR-SLOT17 sy-vline 
WA_SZTG_OSTR_STR-APPT_ID sy-vline 
WA_SZTG_OSTR_STR-TEXT sy-vline 
WA_SZTG_OSTR_STR-ICON1 sy-vline 
WA_SZTG_OSTR_STR-ICON2 sy-vline 
WA_SZTG_OSTR_STR-ICON3 sy-vline 
WA_SZTG_OSTR_STR-SLOT18 sy-vline 
WA_SZTG_OSTR_STR-APPT_ID sy-vline 
WA_SZTG_OSTR_STR-TEXT sy-vline 
WA_SZTG_OSTR_STR-ICON1 sy-vline 
WA_SZTG_OSTR_STR-ICON2 sy-vline 
WA_SZTG_OSTR_STR-ICON3 sy-vline 
WA_SZTG_OSTR_STR-SLOT19 sy-vline 
WA_SZTG_OSTR_STR-APPT_ID sy-vline 
WA_SZTG_OSTR_STR-TEXT sy-vline 
WA_SZTG_OSTR_STR-ICON1 sy-vline 
WA_SZTG_OSTR_STR-ICON2 sy-vline 
WA_SZTG_OSTR_STR-ICON3 sy-vline 
WA_SZTG_OSTR_STR-SLOT20 sy-vline 
WA_SZTG_OSTR_STR-APPT_ID sy-vline 
WA_SZTG_OSTR_STR-TEXT sy-vline 
WA_SZTG_OSTR_STR-ICON1 sy-vline 
WA_SZTG_OSTR_STR-ICON2 sy-vline 
WA_SZTG_OSTR_STR-ICON3 sy-vline 
WA_SZTG_OSTR_STR-SLOT21 sy-vline 
WA_SZTG_OSTR_STR-APPT_ID sy-vline 
WA_SZTG_OSTR_STR-TEXT sy-vline 
WA_SZTG_OSTR_STR-ICON1 sy-vline 
WA_SZTG_OSTR_STR-ICON2 sy-vline 
WA_SZTG_OSTR_STR-ICON3 sy-vline 
WA_SZTG_OSTR_STR-SLOT22 sy-vline 
WA_SZTG_OSTR_STR-APPT_ID sy-vline 
WA_SZTG_OSTR_STR-TEXT sy-vline 
WA_SZTG_OSTR_STR-ICON1 sy-vline 
WA_SZTG_OSTR_STR-ICON2 sy-vline 
WA_SZTG_OSTR_STR-ICON3 sy-vline      INTO ld_text SEPARATED BY SPACE.

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