Interview Questions.

Question 1. What Is The Full From Of Jdbi In Java?

Answer :

JDBI stands for Java Database Interface. 
JDBI is a performant, production geared up, smooth to use library that takes the ache out of JDBC.
Question 2. What Is Fluent Style Api Of Jdbi?

Answer :

The Core API affords a fluent, vital interface. Use Builder fashion objects to cord up your SQL to wealthy Java records sorts.

List<Users> users = handle.CreateQuery("pick * from customers in which call = :call and identity = :id")

                .Bind(zero, "Tom")

                .Bind("identity", 1)

                .Map(Users.Elegance)

                .List();

Adv Java Interview Questions
Question 3. What Are Different Style Types Of Jdbi?

Answer :

JDBI exposes relational database get right of entry to in  distinct style APIs

  Fluent fashion API
  SQL Object style API
Question 4. What Is The Difference Between Jdbc And Jdbi?

Answer :

JDBC is an extended-mounted general used in Java to get right of entry to SQL databases. DB Vendors put into effect a JDBC motive force so that every one DBs can be accessed in a uniform manner. Practically the whole thing achieved with databases in Java uses JDBC.
JDBI is a convenience library constructed on top of JDBC. If your database has a JDBC motive force, you can use Jdbi with it. JDBI is a performant, manufacturing prepared, easy to apply library that takes the pain out of JDBC.
Adv Java Tutorial
Question 5. What Is The Difference Between Hibernate And Jdbi?

Answer :

Hibernate and JDBI begin with very extraordinary assumptions approximately the connection between the developer and the database.
Hibernate supposes that the developer is agnostic to the choice of database and might certainly instead not be  with writing SQL.
JDBI presumes that the developer is deeply linked to the database and its design and implementation selections, and could pick a honest mapping from handwritten SQL to Java.
Core Java Interview Questions
Question 6. What Is Jdbi Library?

Answer :

JDBI is a comfort library constructed on pinnacle of JDBC. If your database has a JDBC driver, you can use Jdbi with it.
JDBC works thoroughly but usually seems to optimize for the database carriers (motive force writers) over the customers. JDBI attempts to show the identical capability, but in an API optimized for customers
Question 7. What Is Sql Object Style (declarative) Api Of Jdbi?

Answer :

The SQL Object extension sits atop Core, and provides a declarative interface. Tell Jdbi what SQL to execute and the form of the consequences you like by using maintaining an annotated Java interface, and it will offer the implementation.

// Define your personal declarative interface

    public interface UserDao 

    @SqlUpdate("CREATE TABLE consumer (identity INTEGER PRIMARY KEY, name VARCHAR)")

    void createTable();

    @SqlUpdate("INSERT INTO person(identification, call) VALUES (?, ?)")

    void insertPositional(int identification, String call);

 

Core Java Tutorial JDBC Interview Questions
Question 8. Why Should I Prefer Jdbi Over Hibernate?

Answer :

There are couple of reasons why need to you decide on it over Hibernate:

You don’t want to fear about lazy/keen fetching and the way this is going to affect your query time on large information sets.
You know exactly what SQL is going to be completed to accumulate the facts you are soliciting for. With Hibernate, you may occasionally must do a variety of messing around with HQL and configuring your gadgets to what you intended to have lower back. You in the long run motel to SQL, however then have the difficultly of nicely mapping your results again on your area items, or you give up and allow hibernate to fetch them one by one.
Mappings aren’t complex because you manage them on your very own and you don’t need to rely upon getting the proper combos of annotations and optimizations.
Question nine. What Are Different Steps To Works With Jdbi?

Answer :

JDBI usually requires three steps to get to a result:

Obtain a connection
Prepare a declaration
Fetch consequences (meaning iterate over a end result set, even in case you best need one cost)
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Question 10. What Are The Problems In Hibernate But Not In Jdbi?

Answer :

Hibernate can generate massive numbers of needless queries, even due to minor misconfigurations. When well configured it nevertheless frequently performs worse than simple SQL queries.
Hibernate is definitely greater of an abstraction, and for my part is amazing for a simple apps. But my in enjoy, as things get extra complex the abstraction leaks. You become having to put debug statements to peer the queries produced by means of hibernate, tweaking the annotation to get extraordinary queries, with any luck with a more performant query plan.
Hibernate is opinionated about your statistics structure. When you've got a information structure that doesn’t folow it’s belief of keys and relationships the Object-relational Impedance Mismatch goes to hit you even harder. Hybrid-ORM frameworks, which includes JDBI, allow greater flexibility whilst mapping to items and hence provide extra runway earlier than you have to start coding significant work arounds for this issue.
You don’t see the overall performance troubles till you scale! When your utility is small and easy the whole thing appears to go alongside smoothly, then you definately scale and all of a sudden hibernate queries are the foundation of your performance troubles.
JDBC Tutorial
Question 11. What Are The Important Benefits Of Using Jdbi Library?

Answer :

There are many advantages of JDBI Library.

Some of them are :

It’s lighter than an ORM (like Hibernate or Spring)
JDBI is a performant, manufacturing prepared, smooth to apply library that takes the ache out of JDBC
From a upkeep perspective I locate it incredibly clean. Since it’s annotation and interface based it’s clean to mock out for testing. And making modifications to both the queries or interface is simple and straightforward, there’s no want to rewrite a gaggle of code.
Java Developer Interview Questions