OCI-Lob->truncate

(PHP 5, PECL OCI8 >= 1.1.0)

OCI-Lob->truncate — Truncates large object

bool OCI-Lob::truncate ([ int $length = 0 ] )

Truncates the LOB.

length: If provided, this method will truncate the LOB to length bytes. Otherwise, it will completrely purge the LOB.

成功时返回 TRUE，或者在失败时返回 FALSE.