Exception in thread "main" java.sql.SQLSyntaxErrorException: Unknown database 'myDB'
at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:120)
at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:122)
at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:828)
at com.mysql.cj.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:448)
at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:241)
at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
at java.sql.DriverManager.getConnection(DriverManager.java:664)
at java.sql.DriverManager.getConnection(DriverManager.java:247)
at JDBCInsertExample.main(JDBCInsertExample.java:19)|
As the exception clearly states that the Database that you are trying to access using JDBC does not exist, there are multiple things that might go wrong,
Possible issues and fixes:- Make sure you have spelled the database name correctly.
- Database names are case-sensitive, make sure it matches with what is there in your Database (MySQL, Oracle, etc)
- Use database query to validate the database name,
mysql> show databases; +--------------------+ | Database | +--------------------+ | information_schema | | my_uat | | mysql | | performance_schema | | sys | +--------------------+ 5 rows in set (0.07 sec)
- Make sure you are connecting to the right Database server (it could be you are on the wrong server UAT/Staging/Local)
- Make sure the database port is correct
Facing issues? Have Questions? Post them here! I am happy to answer!
Author Info:
Rakesh (He/Him) has over 14+ years of experience in Web and Application development. He is the author of insightful How-To articles for Code2care.
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