TO_NCHAR (number)

Syntax

to_nchar_number::=

Description of the illustration to_nchar_number.eps

Purpose

TO_NCHAR (number) converts n to a string in the national character set. The value n can be of type NUMBER, BINARY_FLOAT, or BINARY_DOUBLE. The function returns a value of the same type as the argument. The optional fmt and 'nlsparam' corresponding to n can be of DATE, TIMESTAMP, TIMESTAMP WITH TIME ZONE, TIMESTAMP WITH LOCAL TIME ZONE, INTERVAL MONTH TO YEAR, or INTERVAL DAY TO SECOND data type.

See Also:

"Security Considerations for Data Conversion"
Appendix C in Oracle Database Globalization Support Guide for the collation derivation rules, which define the collation assigned to the character return value of this function

Examples

The following example converts the customer_id values from the sample table oe.orders to the national character set:

SELECT TO_NCHAR(customer_id) "NCHAR_Customer_ID"  FROM orders 
   WHERE order_status > 9
   ORDER BY "NCHAR_Customer_ID";

NCHAR_Customer_ID
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