# derby.storage.pageSize

#### Function

Defines the page size, in bytes, for on-disk database pages for tables or indexes used during table or index creation. Page size can only be one the following values: 4096, 8192, 16384, or 32768. Set this property prior to issuing the CREATE TABLE or CREATE INDEX statement. This value will be used for the lifetime of the newly created conglomerates.

#### Valid conglomerates

Tables and indexes, including the indexes created to enforce constraints.

#### Default

4096 bytes.

#### Valid values

Page size can only be one the following values: 4096, 8192, 16384, or 32768. If you specify an invalid value, Derby uses the default value 4096.

#### Example

    -- changing the default for the system
    derby.storage.pageSize=8192
    -- changing the default for the database
    CALL SYSCS_UTIL.SYSCS_SET_DATABASE_PROPERTY(
        'derby.storage.pageSize',
        '8192')

#### Dynamic or static

This property is dynamic; if you change it while Derby is running, the change takes effect immediately. For information about dynamic changes to properties, see Dynamic or static changes to properties.

Parent topic: Derby properties
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