Re: SQL Error on fetch
Re: SQL Error on fetch
- Subject: Re: SQL Error on fetch
- From: Gino Pacitti via Webobjects-dev <email@hidden>
- Date: Tue, 11 Feb 2020 08:06:32 +0000
Yes... what I meant to say was that I upgraded to a new connector and using
that new class path seemed to work better...
Gino
> On 11 Feb 2020, at 02:41, Tim W <email@hidden> wrote:
>
> Hi Gino:
>
> Were you not specifying the database driver class in Properties before this?
> Driver class and PlugIn class definitely should always be specified.
>
> Tim
>
>
>> On Feb 10, 2020, at 5:37 AM, Gino Pacitti via Webobjects-dev
>> <email@hidden> wrote:
>>
>> What seems to have fixed is adding this in my properties file for the
>> connection dictionary:
>>
>> mymodel.DBDriver = com.mysql.cj.jdbc.Driver
>>
>> I installed the latest JDBC adaptor from MySQL and updated the Drive info…
>>
>> The last few days I have had no issues…
>>
>> Gino
>>
>>>> On 7 Feb 2020, at 17:36, Tim W <email@hidden> wrote:
>>>
>>> Hi Gino:
>>>
>>> I think I might have seen this error when the MySQLPlugin is not in the app
>>> classpath? In other words, some SQL that the frameworks are trying to build
>>> for a transaction are subsequently not being customized properly for MySQL
>>> before being sent to the DB.
>>>
>>> The errors makes sense in that context. First, there is an attempt to build
>>> the SQL string, then com.mysql.jdbc.PreparedStatement.executeInternal
>>> experiences an error parsing what has been sent.
>>>
>>> Check it out.
>>>
>>> Tim
>>>
>>>> On Feb 4, 2020, at 1:00 PM, Gino Pacitti via Webobjects-dev
>>>> <email@hidden> wrote:
>>>>
>>>> Hi
>>>> Has anyone encountered this sort of error before?
>>>>
>>>> It does not happen all the time but just on occasion.
>>>>
>>>> mysql Ver 14.14 Distrib 5.7.28, for Linux (x86_64) using EditLine wrapper
>>>>
>>>> Java 8
>>>>
>>>> mysql-connector-java-8.0.19.jar
>>>>
>>>> This is my connection URL
>>>> jdbc:mysql://127.0.0.1/<DATABASE>_UTF_8?capitalizeTypeNames=true&useUnicode=true&characterEncoding=UTF-8&characterSetResults=utf8&zeroDateTimeBehavior=convertToNull&useSSL=false&sendFractionalSeconds=false&autoReconnect=true&useServerPrepStmts=false&rewriteBatchedStatements=true&useCompression=true
>>>>
>>>> And here is the error
>>>> Unexpected exception encountered during
>>>> query.java.lang.NullPointerExceptionat
>>>> com.mysql.jdbc.SQLError.createSQLException(SQLError.java:965)com.mysql.jdbc.SQLError.createSQLException(SQLError.java:965)
>>>> at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:898)
>>>> at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:887)
>>>> at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:861)
>>>> at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2532)
>>>> at
>>>> com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1903)
>>>> at com.mysql.jdbc.PreparedStatement.execute(PreparedStatement.java:1242)
>>>> at
>>>> com.webobjects.jdbcadaptor.JDBCChannel._bindInputVariablesWithBindingsAndExecute(JDBCChannel.java:265)
>>>> at
>>>> com.webobjects.jdbcadaptor.JDBCChannel._evaluateExpression(JDBCChannel.java:337)
>>>> at
>>>> com.webobjects.jdbcadaptor.JDBCChannel.evaluateExpression(JDBCChannel.java:296)
>>>> at
>>>> er.extensions.jdbc.ERXJDBCAdaptor$Channel.evaluateExpression(ERXJDBCAdaptor.java:283)
>>>> at
>>>> com.webobjects.jdbcadaptor.JDBCChannel.selectAttributes(JDBCChannel.java:220)
>>>> at
>>>> er.extensions.jdbc.ERXJDBCAdaptor$Channel.selectAttributes(ERXJDBCAdaptor.java:200)
>>>> at
>>>> com.webobjects.eoaccess.EODatabaseChannel._selectWithFetchSpecificationEditingContext(EODatabaseChannel.java:897)
>>>> at
>>>> com.webobjects.eoaccess.EODatabaseChannel.selectObjectsWithFetchSpecification(EODatabaseChannel.java:234)
>>>> at
>>>> com.webobjects.eoaccess.EODatabaseContext._objectsWithFetchSpecificationEditingContext(EODatabaseContext.java:3055)
>>>> at
>>>> com.webobjects.eoaccess.EODatabaseContext.objectsWithFetchSpecification(EODatabaseContext.java:3195)
>>>> at
>>>> com.webobjects.eocontrol.EOObjectStoreCoordinator.objectsWithFetchSpecification(EOObjectStoreCoordinator.java:488)
>>>> at
>>>> com.webobjects.eocontrol.EOEditingContext.objectsWithFetchSpecification(EOEditingContext.java:4069)
>>>> at er.extensions.eof.ERXEC.objectsWithFetchSpecification(ERXEC.java:1307)
>>>> at
>>>> com.webobjects.eocontrol.EOEditingContext.objectsWithFetchSpecification(EOEditingContext.java:4444)
>>>> at
>>>> er.extensions.eof.ERXFetchSpecification.fetchObjects(ERXFetchSpecification.java:155)
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