ABAP Select data from SAP table /SDF/DB_TIME_HIST_IMPORT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SDF/DB_TIME_HIST_IMPORT
*  INTO TABLE @DATA(IT_/SDF/DB_TIME_HIST_IMPORT2).
*--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_/SDF/DB_TIME_HIST_IMPORT INDEX 1 INTO DATA(WA_/SDF/DB_TIME_HIST_IMPORT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SDF/DB_TIME_HIST_IMPORT>-INSTANCE_NUMBER = 1.
</SDF/DB_TIME_HIST_IMPORT>-FROM_DATE = 1.
</SDF/DB_TIME_HIST_IMPORT>-TO_DATE = 1.
</SDF/DB_TIME_HIST_IMPORT>-RTT_MICRO = 1.
</SDF/DB_TIME_HIST_IMPORT>-EXCLUDE_SYSTEM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SDF/DB_TIME_HIST_IMPORT-EXCLUDE_ADMINISTRATIVE, sy-vline,
  WA_/SDF/DB_TIME_HIST_IMPORT-EXCLUDE_WEEKENDS, sy-vline,
  WA_/SDF/DB_TIME_HIST_IMPORT-MIN_TIME_WAITED_SEC, sy-vline,
  WA_/SDF/DB_TIME_HIST_IMPORT-AGGREGATE_BY, sy-vline,
  WA_/SDF/DB_TIME_HIST_IMPORT-CONSIDER_TIMEOUTS, sy-vline,
  WA_/SDF/DB_TIME_HIST_IMPORT-EVENT_HOURLY_LIMIT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SDF/DB_TIME_HIST_IMPORT 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_/SDF/DB_TIME_HIST_IMPORT 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_/SDF/DB_TIME_HIST_IMPORT INTO WA_/SDF/DB_TIME_HIST_IMPORT.


*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_/SDF/DB_TIME_HIST_IMPORT_STR, 
INSTANCE_NUMBER TYPE STRING,
FROM_DATE TYPE STRING,
TO_DATE TYPE STRING,
RTT_MICRO TYPE STRING,
EXCLUDE_SYSTEM TYPE STRING,
EXCLUDE_ADMINISTRATIVE TYPE STRING,
EXCLUDE_WEEKENDS TYPE STRING,
MIN_TIME_WAITED_SEC TYPE STRING,
AGGREGATE_BY TYPE STRING,
CONSIDER_TIMEOUTS TYPE STRING,
EVENT_HOURLY_LIMIT TYPE STRING,
OBJECT_HOURLY_LIMIT TYPE STRING,
MIN_AVG_DP_TIME TYPE STRING,
GENERIC_DECIMAL_TYPE TYPE STRING,
DOWNLOAD_RANGE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SDF/DB_TIME_HIST_IMPORT_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_/SDF/DB_TIME_HIST_IMPORT_STR-INSTANCE_NUMBER sy-vline 
WA_/SDF/DB_TIME_HIST_IMPORT_STR-FROM_DATE sy-vline 
WA_/SDF/DB_TIME_HIST_IMPORT_STR-TO_DATE sy-vline 
WA_/SDF/DB_TIME_HIST_IMPORT_STR-RTT_MICRO sy-vline 
WA_/SDF/DB_TIME_HIST_IMPORT_STR-EXCLUDE_SYSTEM sy-vline 
WA_/SDF/DB_TIME_HIST_IMPORT_STR-EXCLUDE_ADMINISTRATIVE sy-vline 
WA_/SDF/DB_TIME_HIST_IMPORT_STR-EXCLUDE_WEEKENDS sy-vline 
WA_/SDF/DB_TIME_HIST_IMPORT_STR-MIN_TIME_WAITED_SEC sy-vline 
WA_/SDF/DB_TIME_HIST_IMPORT_STR-AGGREGATE_BY sy-vline 
WA_/SDF/DB_TIME_HIST_IMPORT_STR-CONSIDER_TIMEOUTS sy-vline 
WA_/SDF/DB_TIME_HIST_IMPORT_STR-EVENT_HOURLY_LIMIT sy-vline 
WA_/SDF/DB_TIME_HIST_IMPORT_STR-OBJECT_HOURLY_LIMIT sy-vline 
WA_/SDF/DB_TIME_HIST_IMPORT_STR-MIN_AVG_DP_TIME sy-vline 
WA_/SDF/DB_TIME_HIST_IMPORT_STR-GENERIC_DECIMAL_TYPE sy-vline 
WA_/SDF/DB_TIME_HIST_IMPORT_STR-DOWNLOAD_RANGE sy-vline      INTO ld_text SEPARATED BY SPACE.

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