lob->truncate

(no version information, might be only in CVS)

lob->truncate -- Truncates large object

Description

bool lob->truncate ( [int length])

If parameter length is given, lob->truncate() truncates large object to length bytes. Otherwise, lob->truncate() will purge the LOB completely.

如果成功则返回 TRUE，失败则返回 FALSE。