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Using Unicode - Oracle Documentation

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The document provides a comprehensive guide on using Unicode with Skywire Software's Documaker version 10.2 and later. It covers the basics of Unicode, its implementation in document creation, enabling languages in Windows, setting up Unicode fonts, creating forms with Docucreate, and printing Unicode data. The document also discusses related standards like XML and UTF-8, licensing fonts, and frequently asked questions regarding Unicode usage.

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How to use Unicode in Oracle SQL query?

Unistr Function Oracle has a function UNISTR which allows you to specify unicode character values. This allows you to insert or update unicode values in your database, even if your databases uses an Ascii character set.

How to insert Unicode characters in SQL?

In SQL, when dealing with Unicode data, use the right data types like NVARCHAR or NCHAR. To insert Unicode data, add an N before strings like N to indicate its Unicode. When querying Unicode data, be careful with data types to prevent issues.

How to store Unicode characters in an Oracle table?

UNICODE support for Oracle databases may be implemented in two ways by defining: the database character set as UTF8 so that UTF-8 encoded characters may be stored in all CHAR data types (CHAR, VARCHAR2, CLOB), or. individual columns as UNICODE data types (NCHAR, NVARCHAR2, NCLOB).

Does Oracle support Unicode?

Unicode Character Set Database Full support of unicode in your Oracle database is only available if your Database Character Set has been set to a unicode character set, such as UTF8. The database character set is specified when your database is defined.

How to check if an Oracle database is Unicode or non-Unicode?

Verify the Unicode code page setting of the Oracle database by executing this single-line SQL command from SQL Plus: SELECT VALUE FROM NLSDATABASEPARAMETERS WHERE PARAMETER = NLSNCHARCHARACTERSET;

How are Unicode characters stored?

Unicode uses two encoding forms: 8-bit and 16-bit, based on the data type of the data that is being that is being encoded. The default encoding form is 16-bit, where each character is 16 bits (2 bytes) wide. Sixteen-bit encoding form is usually shown as U+hhhh, where hhhh is the hexadecimal code point of the character.

Can VARCHAR2 store Unicode?

VARCHAR2: This data type stores non-Unicode characters and is dependent on the database character set. It is suitable for applications that do not require internationalization. NVARCHAR2: This type is designed for Unicode characters, allowing for the storage of multilingual data.

How to set UTF8 encoding in Oracle?

1 Set the NLSLANG Environment Variable to UTF8. To set an Oracle client application like SQL*Plus to use the right encoding, you must set the environment variables on the client machine to UTF8. The required settings vary, depending on the operating system.

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