These functions are used to modify the properties of file LOBs.
Open and close the file associated with a file LOB using ora-lob-file-open and ora-lob-file-close.
You can close all the files associated with a file LOB locator that have been opened through the database connection with ora-lob-file-close-all.
You can alter the directory and/or the file name for a file LOB locator by calling ora-lob-file-set-name.
LispWorks User Guide and Reference Manual - 21 Dec 2011