How to solve garbled code in sqlplus

SQLPlus garbled characters are caused by character set mismatch. Solution: 1. Set the NLS_LANG environment variable; 2. Use client tools that support character sets; 3. Modify the SQLPlus startup script; 4. Modify the database configuration; 5. Use JDBC connection to explicitly set the character set; ensure that the character set is set in Be consistent across databases, client tools, and code.

How to solve SQLPlus garbled code

Cause:

SQLPlus garbled code Usually caused by character set mismatch.

Solution:

1. Use the NLS_LANG environment variable

• Set the NLS_LANG environment variable and specify the database to use character set and locale.
• For example: NLS_LANG=AMERICAN_AMERICA.UTF8

2. Use client tools

• Use a client that supports the specified character set Terminal tools such as SQL Developer or DBeaver.
• When connecting, select a character set that matches the database.

3. Modify the SQLPlus startup script

• Edit the SQLPlus startup script (such as sqlplus.bat or sqlplus.sh).
• Add the following lines:

<code>SET NLS_LANG=AMERICAN_AMERICA.UTF8</code>

• Replace AMERICAN_AMERICA.UTF8 with the actual character set of the database.

4. Modify the database configuration

• If the above method does not work, you need to modify the database configuration.
• Change the database character set using the following command:

<code>ALTER DATABASE CHARACTER SET utf8;</code>

• Restart the database for the changes to take effect.

5. Use JDBC to connect

• If you use JDBC to connect to the database, you can explicitly set the character set:

connection.setClientInfo("キャラクタセット", "utf8");

Note:

• Make sure the database, client tools, and character set settings all match.
• If the garbled characters still exist, please try a different character set.
• If all else fails, you may need to contact your database administrator for further assistance.

The above is the detailed content of How to solve garbled code in sqlplus. For more information, please follow other related articles on the PHP Chinese website!