SQL and PL/SQL Programming with Unicode

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This section describes Unicode-related features in SQL and PL/SQL that you can deploy for multiple language applications. Oracle Database XE provides products such as SQL and PL/SQL for inserting and retrieving Unicode data. Data is transparently converted among the database and client programs, which ensures that client programs are independent of the database character set and national character set.

This section contains the following topics:

• Overview of Unicode

• SQL NCHAR Datatypes

• Unicode String Literals

• NCHAR Literal Replacement