# DB Connection Error: The value 'convertToNull' is not acceptable **URL:** \ **Category:** Ignition\ **Tags:** ignition81\ **Created:** [July 22, 2024, 7:57pm UTC](https://forum.inductiveautomation.com/t/db-connection-error-the-value-converttonull-is-not-acceptable/93563 "2024-07-22T19:57:16Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![dkhayes117](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/dkhayes117/32/68344_2.png) [@dkhayes117](https://forum.inductiveautomation.com/u/dkhayes117)\ **Post date:** [July 22, 2024, 7:57pm UTC](https://forum.inductiveautomation.com/t/db-connection-error-the-value-converttonull-is-not-acceptable/93563/1 "2024-07-22T19:57:16Z")
Just installed Ignition v8.1.32 on Ubuntu 24.04 and I'm getting this error on my db connections. Any ideas? ```python java.sql.SQLException: Cannot create PoolableConnectionFactory (The connection property 'zeroDateTimeBehavior' acceptable values are: 'CONVERT_TO_NULL', 'EXCEPTION' or 'ROUND'. The value 'convertToNull' is not acceptable.) at org.apache.commons.dbcp2.BasicDataSource.createPoolableConnectionFactory(BasicDataSource.java:656) at org.apache.commons.dbcp2.BasicDataSource.createDataSource(BasicDataSource.java:534) at org.apache.commons.dbcp2.BasicDataSource.getConnection(BasicDataSource.java:734) at com.inductiveautomation.ignition.gateway.datasource.DatasourceImpl.getConnectionInternal(DatasourceImpl.java:300) at com.inductiveautomation.ignition.gateway.datasource.DatasourceImpl.runTest(DatasourceImpl.java:253) at com.inductiveautomation.ignition.gateway.datasource.DatasourceManagerImpl$FaultedDatasourceRetryer.lambda$newRetryRunnable$0(DatasourceManagerImpl.java:1096) at com.inductiveautomation.ignition.common.execution.impl.BasicExecutionEngine$TrackedTask.run(BasicExecutionEngine.java:587) at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) at java.base/java.util.concurrent.FutureTask.runAndReset(Unknown Source) at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown Source) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.base/java.lang.Thread.run(Unknown Source) Caused by: java.sql.SQLException: The connection property 'zeroDateTimeBehavior' acceptable values are: 'CONVERT_TO_NULL', 'EXCEPTION' or 'ROUND'. The value 'convertToNull' is not acceptable. at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:127) at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:95) at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:87) at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:61) at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:71) at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:85) at com.mysql.cj.jdbc.ConnectionImpl.(ConnectionImpl.java:440) at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:230) at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:226) at org.apache.commons.dbcp2.DriverConnectionFactory.createConnection(DriverConnectionFactory.java:52) at org.apache.commons.dbcp2.PoolableConnectionFactory.makeObject(PoolableConnectionFactory.java:357) at org.apache.commons.dbcp2.BasicDataSource.validateConnectionFactory(BasicDataSource.java:103) at org.apache.commons.dbcp2.BasicDataSource.createPoolableConnectionFactory(BasicDataSource.java:652) ... 12 more Caused by: com.mysql.cj.exceptions.WrongArgumentException: The connection property 'zeroDateTimeBehavior' acceptable values are: 'CONVERT_TO_NULL', 'EXCEPTION' or 'ROUND'. The value 'convertToNull' is not acceptable. at jdk.internal.reflect.GeneratedConstructorAccessor125.newInstance(Unknown Source) at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source) at java.base/java.lang.reflect.Constructor.newInstance(Unknown Source) at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:59) at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:103) at com.mysql.cj.conf.DefaultPropertySet.initializeProperties(DefaultPropertySet.java:194) at com.mysql.cj.jdbc.ConnectionImpl.(ConnectionImpl.java:382) ... 18 more Caused by: com.mysql.cj.exceptions.CJException: The connection property 'zeroDateTimeBehavior' acceptable values are: 'CONVERT_TO_NULL', 'EXCEPTION' or 'ROUND'. The value 'convertToNull' is not acceptable. at jdk.internal.reflect.GeneratedConstructorAccessor124.newInstance(Unknown Source) at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source) at java.base/java.lang.reflect.Constructor.newInstance(Unknown Source) at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:59) at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:103) at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:149) at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:122) at com.mysql.cj.conf.EnumPropertyDefinition.parseObject(EnumPropertyDefinition.java:64) at com.mysql.cj.conf.EnumPropertyDefinition.parseObject(EnumPropertyDefinition.java:39) at com.mysql.cj.conf.AbstractRuntimeProperty.setFromString(AbstractRuntimeProperty.java:96) at com.mysql.cj.conf.AbstractRuntimeProperty.initializeFrom(AbstractRuntimeProperty.java:91) at com.mysql.cj.conf.AbstractRuntimeProperty.initializeFrom(AbstractRuntimeProperty.java:75) at com.mysql.cj.conf.DefaultPropertySet.initializeProperties(DefaultPropertySet.java:191) ... 19 more Caused by: java.lang.IllegalArgumentException: No enum constant com.mysql.cj.conf.PropertyDefinitions.ZeroDatetimeBehavior.CONVERTTONULL at java.base/java.lang.Enum.valueOf(Unknown Source) at com.mysql.cj.conf.EnumPropertyDefinition.parseObject(EnumPropertyDefinition.java:62) ... 24 more 8.1.32 (b2023091211) Azul Systems, Inc. 11.0.18 ``` ---
**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\ **Post date:** [July 22, 2024, 8:05pm UTC](https://forum.inductiveautomation.com/t/db-connection-error-the-value-converttonull-is-not-acceptable/93563/2 "2024-07-22T20:05:18Z")
Check the connection string for that DB connection, see if it has 'convertToNull' and 'zeroDateTimeBehavior' in it. ---
**Author:** ![dkhayes117](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/dkhayes117/32/68344_2.png) [@dkhayes117](https://forum.inductiveautomation.com/u/dkhayes117)\ **Post date:** [July 22, 2024, 8:07pm UTC](https://forum.inductiveautomation.com/t/db-connection-error-the-value-converttonull-is-not-acceptable/93563/3 "2024-07-22T20:07:25Z")
I looked right over that. I changed it to `zeroDateTimeBehavior=CONVERT_TO_NULL` and that fixed it. Thanks!