Oracle 9i. Application Developers Guide - Large Objects by Higgins S., Kotsovolos S., Raphaely D.

By Higgins S., Kotsovolos S., Raphaely D.

Oracle 9i software Developer's Guide-Large items (LOBs) includes details that describes the positive factors and performance of Oracle 9i and Oracle 9i company variation items. Oracle 9i and Oracle 9i firm version have a similar uncomplicated good points. even though, numerous complicated good points can be found basically with the company version, and a few of those are non-compulsory. to exploit the Partitioning performance, opt for the Partitioning alternative.

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By Higgins S., Kotsovolos S., Raphaely D.

Oracle 9i software Developer's Guide-Large items (LOBs) includes details that describes the positive factors and performance of Oracle 9i and Oracle 9i company variation items. Oracle 9i and Oracle 9i firm version have a similar uncomplicated good points. even though, numerous complicated good points can be found basically with the company version, and a few of those are non-compulsory. to exploit the Partitioning performance, opt for the Partitioning alternative.

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Extra resources for Oracle 9i. Application Developers Guide - Large Objects (LOBs) using Java (JDBC)

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Reading Internal Persistent LOBs and External LOBs (BFILEs) with Java With JDBC you can use Java to read both internal persistent LOBs and external LOBs (BFILEs). BLOB, CLOB, and BFILE Classes ■ ■ BLOB and CLOB Classes. In JDBC theses classes provide methods for performing operations on large objects in the database including BLOB and CLOB data types. BFILE Class. In JDBC this class provides methods for performing operations on BFILE data in the database. The BLOB, CLOB, and BFILE classes encapsulate LOB locators, so you do not deal with locators but instead use methods and properties provided to perform operations and get state information.

NCLOB, a LOB whose value is composed of character data that corresponds to the national character set defined for the Oracle9i database. Internal LOBs are divided into persistent and temporary LOBs. External LOBs (BFILEs) External LOBs (BFILES) are large binary data objects stored in operating system files outside database tablespaces. These files use reference semantics. Apart from conventional secondary storage devices such as hard disks, BFILEs may also be located on tertiary block storage devices such as CD-ROMs, PhotoCDs and DVDs.

But if you are given a Photo, you find that the data really consists of a long stream of 0s and 1s. These 0s and 1s are used to switch pixels on or off so that you will see the Photo on a display, but they can’t be broken down into any finer structure in terms of database storage. Unstructured Data is Large Also interesting is that unstructured data such as text, graphic images, still video clips, full motion video, and sound waveforms tend to be large -- a typical employee record may be a few hundred bytes, but even small amounts of multimedia data can be thousands of times larger.

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