Oracle9i OLAP Services Concepts and Administration Guide
Release 1 (9.0.1)

Part Number A88755-01
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Localization, 3 of 9


About Oracle Globalization Technology

What is Oracle Globalization Technology?

Oracle Globalization Technology (formerly called the National Language System or NLS) provides the Oracle standard for internationalizing and localizing Oracle products. Its use in the database and OLAP Services allows text data in native languages to be passed between them without data loss or performance degradation.

Differences between the RDBMS and OLAP Services

A few differences exist in the implementation of Globalization Technology in OLAP Services and the RDBMS, as shown in the following table.

Database 

OLAP Services 

Supports both ASCII and non-ASCII character sets.  

Supports only those character sets that are strict ASCII super sets. 

Stores Globalization Technology settings in a file named init.ora

Stores Globalization Technology settings in the OLAP Services registry. 

Supports definition of a national character set that is used for all columns with type NCHAR or NVARCHAR. The national character set can be either UTF-8 (variable width) or UTF-16 (fixed width). 

NCHAR and NVARCHAR data from the database is converted to the instance character set when fetched. OLAP Services does not provide equivalent data types because it does very little of the kind of text processing that makes these data types desirable. 

Related information

For complete information about Globalization Technology, refer to the Oracle9i Globalization Technology Guide.


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