How can the Oracle check the character set?

1 year ago
Liam
1 minute

There are multiple methods to check the character set in Oracle database, here are two commonly used options:

  1. Query the NLS_DATABASE_PARAMETERS view in SQL.
SELECT parameter, value
FROM NLS_DATABASE_PARAMETERS
WHERE parameter IN ('NLS_CHARACTERSET', 'NLS_NCHAR_CHARACTERSET');

This query will return the character set of the database and the NCHAR character set.

  1. Query the V$NLS_PARAMETERS view using SQL.
SELECT parameter, value
FROM V$NLS_PARAMETERS
WHERE parameter IN ('NLS_CHARACTERSET', 'NLS_NCHAR_CHARACTERSET');

This query will return the character set of the database and the NCHAR character set. Compared to the NLS_DATABASE_PARAMETERS view, the V$NLS_PARAMETERS view provides more NLS parameter information.

These methods can all be used to view the current character set in the Oracle database.

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