(PHP 4 <= 4.1.0, PECL dbplus >= 0.9) Creates an empty copy of a relation with default indices

(PHP 4 <= 4.1.0, PECL dbplus >= 0.9) Create a new secondary index for a relation

(PHP 4 <= 4.1.0, PECL dbplus >= 0.9) Get error string for given errorcode or last error

(PHP 4 <= 4.1.0, PECL dbplus >= 0.9) Give up write lock on relation

(PHP 4 <= 4.1.0, PECL dbplus >= 0.9) Save position

(PHP 4 <= 4.1.0, PECL dbplus >= 0.9) Set index

(PHP 4 <= 4.1.0, PECL dbplus >= 0.9) Free exclusive lock on relation

(PHP 4 <= 4.1.0, PECL dbplus >= 0.9) Release write lock on tuple

(PHP 4 <= 4.1.0, PECL dbplus >= 0.9) Free all locks held by this client

(PHP 4 <= 4.1.0, PECL dbplus >= 0.9) Restore position