遇ORA-00911无效字符错误，Java插入Oracle代码排查无果求助

First off, let's get to the root of this error—ORA-00911 almost always flags an invalid character in your SQL syntax, and for JDBC PreparedStatements like yours, the most common culprit is a trailing semicolon at the end of your SQL string.

Looking at your code snippet, let's zero in on the SQL line:

String sql = "INSERT INTO UYELER (UYE_ID, UYE_ADSOYAD, UYE_DOGUM, UYE_ADRES, UYE_EMAIL, UYE_PASSWORD) VALUES (UYELER_SEQ.NEXTVAL,?,?,?,?,?)";

If your actual code has a semicolon tacked onto the end of this string (like "...)?";), that's the problem. Unlike when you run SQL in tools like SQL Developer or SQL*Plus, JDBC doesn't expect that trailing semicolon—it throws off the parser and triggers the ORA-00911 error.

Quick Fix Steps #

• Remove any trailing semicolon from your SQL string. The corrected line should look exactly like the snippet above, no semicolon at the end.
• Double-check for stray invisible characters (like extra tabs or non-printable symbols) that might have snuck in if you copied the SQL from another source. These can also trigger syntax errors.

Additional Checks If the Fix Doesn't Work #

If removing the semicolon doesn't resolve the issue, try these:

• Verify that all column names in your INSERT statement match the actual column names in the UYELER table exactly (case sensitivity matters if your columns were created with quoted identifiers).
• Confirm that the UYELER_SEQ sequence exists and that your database user has permission to access it.
• Make sure none of the parameter values you're setting have unexpected special characters (though this is less likely to trigger ORA-00911 specifically).

Give that a shot—this should clear up the error!

内容的提问来源于stack exchange，提问作者Ahmet Sefa Kara