Returns a String representing a National Character Set Literal enclosed in single quotes and prefixed with a upper case letter N. Any occurrence of a single quote within the string will be replaced by two single quotes.

Examples of the conversion:

Value	Result
Hello	N'Hello'
G'Day	N'G''Day'
'G''Day'	N'''G''''Day'''
I'''M	N'I''''''M'
N'Hello'	N'N''Hello'''

Parameters:

val

a character string

Returns:  the result of replacing every single quote character in the argument by two single quote characters where this entire result is then prefixed with 'N'.

Exceptions:

NullPointerException		if val is null
SQLException		if a database access error occurs

Since:  9

@implNote JDBC driver implementations may need to provide their own implementation of this method in order to meet the requirements of the underlying datasource. An implementation of enquoteNCharLiteral may accept a different set of characters than that accepted by the same drivers implementation of enquoteLiteral.