DISASSOCIATE STATISTICS

Purpose

Use the DISASSOCIATE STATISTICS statement to disassociate a statistics type (or default statistics) from columns, standalone functions, packages, types, domain indexes, or indextypes.

See Also: ASSOCIATE STATISTICS for more information on statistics type associations

Prerequisites

To issue this statement, you must have the appropriate privileges to alter the base object (table, function, package, type, domain index, or indextype).

Syntax

Keywords and Parameters

FROM COLUMNS | FUNCTIONS | PACKAGES | TYPES | INDEXES | INDEXTYPES

Specify one or more columns, standalone functions, packages, types, domain indexes, or indextypes from which you are disassociating statistics.

If you do not specify schema, Oracle assumes the object is in your own schema.

If you have collected user-defined statistics on the object, the statement fails unless you specify FORCE.

FORCE

Specify FORCE to delete the association regardless of whether any statistics exist for the object using the statistics type. If statistics do exist, the statistics are deleted before the association is deleted.

Note: When you drop an object with which a statistics type has been associated, Oracle automatically disassociates the statistics type with the FORCE option and drops all statistics that have been collected with the statistics type.

Example

Dissociating Statistics Example

This statement disassociates statistics from the pack package in the hr schema:

DISASSOCIATE STATISTICS FROM PACKAGES hr.pack;