JDBC is an important aspect in terms of interview questions for the Java programmers. The candidates who want to be hired by good companies then they should start preparing themselves. Here we present you some interview questions that may help in your interviews.
JDBC stands for Java Database connectivity which is an application that helps in connection for the programming of Java language. It is primarily helpful for the clients by guiding them on how to access a database. This java technology helps in connectivity of java database. It comes from Java Standard Edition platform, from Oracle Corporation.
JDBC drivers are software that enables the Java application to connect with the database. For a better understanding, if you want to connect an individual database you need a driver for each database. JDBC drivers are very much like to ADO.NET data provider, OLE DB provider, ODBC driver. It has connections and classes that are very useful in Java application and its database.
It has four types and these are: -
The different interfaces are given below:
The classes are:
There are some advantages of the PreparedStatement over Statement which are given below: -
Four types of locks are available in JDBC. These are: -
There are several differences between stored procedures and functions. These are: -
It can be done by two possible methods and these are: -
JDBC branching is used to send a bulk of SQL statement in just one call to the database. It enhances the performance as you forward A great number of a similar statement in a batch in a call and reducing the connection overhead. It can be done by the options such as Statement or PreparedStatement addBatch() and executeBatch() methods.
JDBC DataSource is believed to be more powerful than the DriverManager in the case of the database connection. It is used to build a database connection. Drive implementation classes are very efficient to perform the job of getting the connection. It acts as an interface that is defined in the javax.sql package.
The new features that are available in JDBC 4.0 are: -
A new feature is available in JDBC 4.0 is automatically loading by JDBC driver class
There are mainly four exceptions which are:
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