java.sql.SQLException

tip

MySQL doesn't support some types of characters (such as emojis) with the utf8 encoding. You need to be on MySQL 5.5+ and force utf8mb4 (everywhere, client and server). You can do this sending the query "SET NAMES utf8mb4". Check this https://goo.gl/3E2qzg

You have a different solution? A short tip here would help you and many other users who saw this issue last week.

  • SQLException
    via GitHub by nsommer
    ,
  • Connection to the database without using the name
    via by Unknown author,
    • java.sql.SQLException: Field 'USERNAME' doesn't have a default value at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:998) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3835) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3771) at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2435) at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2582) at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2535) at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1911) at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2145) at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2081) at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2066) at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.executeUpdate(ResultSetReturnImpl.java:208)

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