CLOSE procedures - Close an open large object The CLOSE procedures are a no-op. SyntaxDBMS_LOB.CLOSE_BLOB( lob_loc) DBMS_LOB.CLOSE_CLOB( lob_loc) Parameters lob_loc An input or output argument of type BLOB(10M) or CLOB(10M) that specifies the large object locator of the large object to be closed. AuthorizationEXECUTE privilege on the DBMS_LOB module.