Parameters

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)