Oracle NLS_CHARSET_DECL_LEN function
Description
The Oracle NLS_CHARSET_DECL_LEN function is used to returns the declaration length (in a number of characters) of an NCHAR column.
Syntax:
NLS_CHARSET_DECL_LEN(byte_count, 'char_set_id')
Parameter:
| Name | Description |
|---|---|
| byte_count | The byte_count argument is the width of the column. |
| char_set_id | The char_set_id argument is the character set ID of the column. |
Examples: Oracle NLS_CHARSET_DECL_LEN function
The following example returns the number of characters that are in a 200-byte column when you are using a multibyte character set:
SELECT NLS_CHARSET_DECL_LEN(200, nls_charset_id('ja16eucfixed'))
FROM DUAL;
Sample Output:
NLS_CHARSET_DECL_LEN(200,NLS_CHARSET_ID('JA16EUCFIXED'))
--------------------------------------------------------
100
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NLS_CHARSET_ID
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