192.1.3 LONGEST_QUERY Function

This function returns the duration of the longest query, in seconds, for a given period.

Syntax

Viewing the output using the historical information in memory:

DBMS_UNDO_ADV.LONGEST_QUERY()
RETURN NUMBER;  

Viewing the output using start time and end time:

DBMS_UNDO_ADV.LONGEST_QUERY(
    start_time IN DATE,
    end_time   IN DATE)
RETURN NUMBER;  

Viewing the output using begin and end AWR snapshot ID:

DBMS_UNDO_ADV.LONGEST_QUERY(
    begin_snap IN NUMBER,
    end_snap   IN NUMBER)
RETURN NUMBER;     

Parameters

Table 192-4 LONGEST_QUERY Function Parameters

Parameter	Description
start_time	Start time for the specified period.
end_time	End time for the specified period.
begin_snap	Begin snapshot identifier. It is based on historical information in AWR from the begin_snap identifier.
end_snap	End snapshot identifier. It is based on historical information in AWR until the end_snap identifier.