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I think you need a bidirectional link from the CustomerAccount to the Account class and a CustomerAccountRepository class which has a method declared findByCustomerFirstNameAndCustomerLastName that returns the CustomerAccount which links back to an Account.

Why the method you have will not work - Account repository only returns Account objects(unless you add JPQL and map the return object to something else). AccountRepository.findByCustomerAccountsCustomerFirstNameAndCustomerAccountsCustomerLastame finds you an(/all) Account(/s) that have a CustomerAccount with Customer.firstName and Customer.lastname matching what is provided by the user. The Account still has a one to many relationship to CustomerAccount, so will contain all the CustomerAccounts for the Account(in your case both Viki and Noah).

Extract relevant columns and paste them together.

You need to pass a single query object to deleteMany that matches the documents you want to delete. In this case you can use $in:

mysql> select passenger.* from passeger,bus,booking where passenger.pid=booking. pid;

Is passenger ? probably this mistake.

To your answer query here:

1)

select passenger.pname, passenger.gender, passenger.age, bus.Start_point, bus.destination from passenger,bus,booking where passenger.pid=booking.pid and booking.route_no= bus.route_no and bus.route_no=123;

2)

select passenger.pname, passenger.gender, booking.jrny_date from passenger,booking where passenger.pid=booking.pid and booking.route_no=345;

So this is what I thought the issue might be... The problem is that transmitting serialized content between a .NET Core application and a .NET Framework application using a polymorphic serializer like JSON.NET or Hyperion is an unsupported operation in Akka.NET at least, but also in any other runtime where the users uses CLR types as the wire format of the messages.

A brief explanation as to why we don't support this in Akka.NET, from the v1.3.0 release notes:

As a side note: Akka.NET on .NET 4.5 is not wire compatible with Akka.NET on .NET Core; this is due to fundamental changes made to the base types in the CLR on .NET Core. It's a common problem facing many different serializers and networking libraries in .NET at the moment. You can use a X-plat serializer we've developed here: #2947 - please comment on that thread if you're considering building hybrid .NET and .NET Core clusters.

The "fundamental changes" in this case being that the namespaces for types like string are different on .NET 4.* and .NET Core, thus a polymorphic serializer that doesn't account for those differences will throw this type of exception.

We do have a workaround available here if you'd like to use it:

https://github.com/akkadotnet/akka.net/pull/2947

You'll need to register that serializer compat layer with JSON.NET inside Lighthouse and your .NET 4.7.1 apps.

There is a typo in the variable declaration of l. l = [[0,2],[2.4],[0,8],[3,9],[5,20]] -> change 2.4 to 2,4

And dict.items() should probably be dic.items()

Please use spaces in your code, hard to read otherwise. Also use const instead of let when variable won't change. You forgot to use the parsed urlData.

Try this:

I see several things that could lead to your mistake. First, the version 3.1.0 is very old you should rather use 3.14.0, also the geckodriver is already with version 0.21.0. For der latest Realeses look at here: seleniumhq Secound, you should use the FirefoxOptions as a transfer parameter for the RemoteDriver(UrlToHub,FirefoxOptions) and merge your DesiredCapabilities into the FirefoxOptions beforehand. And as last problem I see, you use http://localhost:4444/wd/hub as url. When you start the hub you will see a URL to register in the console which is not in your IP pool, you should also use this. To start the hub you only need the commandline command:cd pathToSeleniumStandAloneServerFolder and the start command is: java -jar selenium-standalone-.jar -role hub the port "4444" is default

Then you will see the right URL to connect the RemoteWebDriver(). It´s look like this:

I added the functionality needed to make your code work as you intended; You will need to keep track of the current level of stock to make this something useful though.