• a5_finddupsgenie Function
• a5_get_recs_in_qry_local Function
• a5_paste_current_record Function
• a5_paste_from_clipboard Function
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• a5_put_rec_on_clipboard Function
• a5_rec_clip_has_data Function
• a5_records_undelete Function
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• a5_selected_records Function
• BOTTOM_PERCENT_RECORDS Function
• BOTTOM_RECORDS Function
• CHANGE_RECORD Method
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• 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
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• STDDEV Function
• TOP_PERCENT_RECORDS Function
• TOP_RECORDS Function
• TOP_RECORDS_LIST Function
• TOP_RECORDS_PCT_LIST Function
• VARIANCE Function

RANDOM_PERCENT_RECORDS Function

Syntax

Arguments

Filter_Expression

An expression that selects records from a table.

percent

An integer number greater than 0 and less than or equal to 100. The count of records to return.

filter

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

Description

Return percent of the records, selected at random.

Discussion

Selects a specified Percent of the random records from a table. If the optional filter is supplied, the records are selected only from those that satisfy the filter. Percent is expressed as a whole number, e.g. 50 for 50%. RANDOM_PERCENT_RECORDS() is a special function used only in queries to return a percent of the records,selected at random, in the currently open table. If the optional filter is supplied, the random records are selected from the records selected by the filter.

Example

See Top, Bottom, Nth Record and Random Record Queries for more information. The following query randomly selects and returns 10% percent of the table's orders placed after May 1, 2000.

dim tbl as P
dim inx as P
tbl = table.current()
query.filter = "random_percent_records(10, \"orderdate > {5/1/2000}\")"
query.order = "order_total"
inx = tbl.query_create()
topparent.resynch()

See Also

• Record Functions
• Writing Expressions