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. 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

Derby automatically tunes for the database page size. If you have long columns, the default page size for the table is set to 32768 bytes. Otherwise, the default is 4096 bytes.

Valid values

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

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 and static properties.

Related reference
derby.authentication.builtin.algorithm
derby.authentication.builtin.iterations
derby.authentication.builtin.saltLength
derby.authentication.ldap.searchAuthDN
derby.authentication.ldap.searchAuthPW
derby.authentication.ldap.searchBase
derby.authentication.ldap.searchFilter
derby.authentication.native.passwordLifetimeMillis
derby.authentication.native.passwordLifetimeThreshold
derby.authentication.provider
derby.authentication.server
derby.connection.requireAuthentication
derby.database.classpath
derby.database.defaultConnectionMode
derby.database.forceDatabaseLock
derby.database.fullAccessUsers
derby.database.noAutoBoot
derby.database.propertiesOnly
derby.database.readOnlyAccessUsers
derby.database.sqlAuthorization
derby.infolog.append
derby.jdbc.xaTransactionTimeout
derby.language.logQueryPlan
derby.language.logStatementText
derby.language.sequence.preallocator
derby.language.statementCacheSize
derby.locks.deadlockTimeout
derby.locks.deadlockTrace
derby.locks.escalationThreshold
derby.locks.monitor
derby.locks.waitTimeout
derby.replication.logBufferSize
derby.replication.maxLogShippingInterval
derby.replication.minLogShippingInterval
derby.replication.verbose
derby.storage.indexStats.auto
derby.storage.indexStats.log
derby.storage.indexStats.trace
derby.storage.initialPages
derby.storage.minimumRecordSize
derby.storage.pageCacheSize
derby.storage.pageReservedSpace
derby.storage.rowLocking
derby.storage.tempDirectory
derby.storage.useDefaultFilePermissions
derby.stream.error.extendedDiagSeverityLevel
derby.stream.error.field
derby.stream.error.file
derby.stream.error.logBootTrace
derby.stream.error.logSeverityLevel
derby.stream.error.method
derby.system.bootAll
derby.system.durability
derby.system.home
derby.user.UserName