MySQLSyntaxErrorException with table name "condition" [closed]

Question

I have a table called condition. I need to keep it with that name, but when I execute the command

Query qb = em.createQuery("SELECT c FROM Condition c ")

I get this exception:

Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'condition' at line 1
at sun.reflect.GeneratedConstructorAccessor5.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:411)
at com.mysql.jdbc.Util.getInstance(Util.java:386)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1052)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4096)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4028)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2490)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2651)
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2683)
at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:2144)
at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:2310)
at org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.executeSelect(DatabaseAccessor.java:931)
at org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.basicExecuteCall(DatabaseAccessor.java:607)

I know that MySQL has a command called condition and that's why this command throws me an exception.

Is there a form to keep my table named as condition, and that would allow me to execute the following command?

Query qb = em.createQuery("SELECT c FROM Condition c ")

Answer 1

This is because condition is a reserved keyword of MySQL.

Try this:

Query qb = em.createQuery("SELECT c FROM `Condition` c ")

Check Schema Object Names for more details.

I hope it may helps you!

Answer 2

CONDITION is a reserved keyword. It must be escaped using backticks:

SELECT c FROM `Condition` c

• MySQL Reserved Keywords List

If you have a chance to alter the identifier, change the table name which is not present on the reserved keyword list. This will avoid you from future headaches.