Viewing character set in Oracle database.

1 year ago
Olivia Parker
2 minutes

To view the character set of an Oracle database, you can use the following method: 1. Use an SQL query to access the NLS_DATABASE_PARAMETERS view.

  SELECT parameter, value
   FROM NLS_DATABASE_PARAMETERS
   WHERE parameter LIKE '%CHARACTERSET%';

Query the NLS_INSTANCE_PARAMETERS view using SQL.

  SELECT parameter, value
   FROM NLS_INSTANCE_PARAMETERS
   WHERE parameter LIKE '%CHARACTERSET%';

3. Utilize SQL to query the V$NLS_PARAMETERS view.

  SELECT parameter, value
   FROM V$NLS_PARAMETERS
   WHERE parameter LIKE '%CHARACTERSET%';

These queries will return the character set currently being used by the database. Common character sets include:

 AL32UTF8：UTF-8字符集
 US7ASCII：7位ASCII字符集
 ZHS16GBK：GBK字符集
 WE8ISO8859P1：ISO 8859-1字符集

Please note that these queries will only display the character set of the database, not of specific tables or columns. To view the character set of specific tables or columns, you can query the column definitions of the table or use relevant metadata views.

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