Database processing method, apparatus for implementing same, and medium containing processing program therefor

• US 20050262078A1
• Filed: 07/27/2005
• Published: 11/24/2005
• Est. Priority Date: 12/01/1998
• Status: Abandoned Application

• Current Assignee: Masashi Tsuchida, Morihiro Iwata, Susumu Kobayashi, Yukio Nakano
• Original Assignee: Masashi Tsuchida, Morihiro Iwata, Susumu Kobayashi, Yukio Nakano
• Inventors: Kobayashi, Susumu, Tsuchida, Masashi, Nakano, Yukio, Iwata, Morihiro
• Application Number:
  US11/189,702
• Publication Number:
  US 20050262078A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 16/217 Database tuning G06F16/2282 takes precedence; database performance monitoring G06F11/3409
• CPC Class Codes: G06F 16/2365 Ensuring data consistency and integrity
• CPC Class Codes: Y10S 707/99938 Concurrency, e.g. lock management in shared database
• CPC Class Codes: Y10S 707/99945 Object-oriented database structure processing

Abstract

A database processing method for defining and operating data of file reference type which references a file. A column data insert request for specifying position information indicative of a storage location of a file and watch information for watching the file is received from a database client. A request for watching a file indicated by the position information is issued in accordance with the watch information. The position information and the watch information are stored in a database. The foregoing operations permit data in an external file placed outside a database to be treated as data equivalent to ordinary column data stored in the database to improve the integrity of the database.

Claims

1. A database processing method for processing a database system which stores link information for linking data with a database, the data being stored on external of the database, said database processing method comprising the steps of:

designating, by a user, a timing at which information fetched in the database and concerning link destination data is synchronized with the link destination data; and

executing synchronization between the information and the link destination data at the timing designated by the user.

2. The database processing method according to claim 1, wherein the step of executing synchronization comprises the steps of:

checking whether the link destination data has been updated or not; and

if the link destination data has been updated, altering the information in the database concerning the link destination data in accordance with an update of the link destination data.

3. A database processing method for processing a database system which stores link information for linking data with a database, the data being stored external of the database, the method comprising the steps of:

designating, by a user, a timing of making a correspondence relationship

between information fetched in the database concerning link destination data and the link destination data; and

executing making the correspondence relationship between the information and the link destination data at the timing designated by the user.

4. A database processing method for processing a database system which stores link information for linking data with a database, the data being stored external of the database, the method comprising the steps of:

designating, by a user, a timing of making a correspondence relationship between information fetched in the database concerning link destination data and the link destination data; and

executing, by a file server which processes the database, making the correspondence relationship between the information and the link destination data at the timing designated by the user.