• a5_finddupsgenie Function
• a5_get_recs_in_qry_local Function
• a5_paste_current_record Function
• a5_paste_from_clipboard Function
• a5_paste_new_record Function
• a5_put_rec_on_clipboard Function
• a5_rec_clip_has_data Function
• a5_records_undelete Function
• a5_remove_recs_genie Function
• a5_selected_records Function
• BOTTOM_PERCENT_RECORDS Function
• BOTTOM_RECORDS Function
• CHANGE_RECORD Method
• CURRENT_RECORD Function
• CURRENT_RECORD_NUMBER Function
• DBAVG Function
• DBCOUNT Function
• DBMAX Function
• DBMIN Function
• DBSUM Function
• DELETE_RECORD Method
• DELETED Function
• ENTER RECORD Method
• EVERY_RECORD_LIST Function
• FILTER_STRING Function
• form_qs_explicit Function
• IS_RECNO_IN Function
• LOOKUP Function
• LOOKUPC Function
• LOOKUPD Function
• LOOKUPL Function
• LOOKUPN Function
• MARKED Function
• page_records_get Function
• POP_STDDEV Function
• POP_VARIANCE Function
• RANDOM_PCT_RECORD_LIST Function
• RANDOM_PERCENT_RECORDS Function
• RANDOM_RECORD_LIST Function
• RANDOM_RECORDS Function
• RECORD_ADD Function
• RECORD_DELETE Function
• RECORD_UPDATE Function
• RUN_AVERAGE Function
• RUN_MAXIMUM Function
• RUN_MINIMUM Function
• RUN_STDDEV Function
• RUN_VARIANCE Function
• SAMPLE_RECORDS Function
• STDDEV Function
• TOP_PERCENT_RECORDS Function
• TOP_RECORDS Function
• TOP_RECORDS_LIST Function
• TOP_RECORDS_PCT_LIST Function
• VARIANCE Function

SAMPLE_RECORDS Function

Syntax

Arguments

sample

The interval between sampled records. Numeric

filter

Optional. Default = ".T." (All records). A character filter expression that evaluates to a logical value and selects records from the table. Character

Description

Select every Nth record in the table in the current sort order.

Discussion

SAMPLE_RECORDS() is a special function used only in queries to return Every Nth record in a table. If the optional filter is supplied, only the records selected by the filter are sampled.

Example

See Top, Bottom, Nth Record and Random Record Queries for more information. The following query returns every 10th order placed after May 1, 2000.

t = table.current()
query.filter = "sample_records(10, \"orderdate > {5/1/2000}\")"
query.order = "order_total"
i = t.query_create()
topparent.resynch()

See Also

• Record Functions
• Writing Expressions