OCI-Lob->seek

(no version information, might be only in CVS)

OCI-Lob->seek -- Sets the internal pointer of the large object

说明

class OCI-Lob {

bool seek ( int offset [, int whence] )

}

Sets the internal pointer of the large object.

参数

offset

Indicates the amount of bytes, on which internal pointer should be moved from the position, pointed by whence.

whence

May be one of:

OCI_SEEK_SET - sets the position equal to offset
OCI_SEEK_CUR - adds offset bytes to the current position
OCI_SEEK_END - adds offset bytes to the end of large object (use negative value to move to a position before the end of large object)

返回值

如果成功则返回 TRUE,失败则返回 FALSE

参见

OCI-Lob->rewind
OCI-Lob->tell
OCI-Lob->eof