Which JDBC driver is fastest and used more commonly?
Which JDBC driver is fastest and used more commonly?
JDBC Net pure Java driver(Type 4) is the fastest driver because it converts the JDBC calls into vendor specific protocol calls and it directly interacts with the database.
Which class is responsible for creating JDBC?
JDBC DriverManager
JDBC DriverManager: It is the class in JDBC API. It loads the JDBC driver in a Java application for establishing a connection with the database. It is useful in making a database-specific call for processing the user request.
What is the reason why we need a JdbcRowSet like the wrapper around ResultSet?
43) What is the reason why we need a JdbcRowSet like the wrapper around ResultSet? We can use ResultSet object as a JavaBeans component. A JdbcRowSet also can be used as a JavaBeans component. That’s why it can be created and configured at design or compile time and executed at run time.
What happens if we call ResultSet getInt 0?
Question 6: What happens if we call resultSet. getInt(0) when Select query result just have one column of integer type? Answer: This is one of the tricky Java questions which comes from JDBC. you may think that it will return the first column as an integer from the Query result set but unfortunately, it doesn’t.
Which JDBC driver is best?
For most applications, the best choice is a pure Java driver, either Type 3, Type 4, or even Type 5.
- Type 5 JDBC drivers (such as DataDirect JDBC drivers) offer advanced functionality and superior performance over other driver types.
- Type 4 drivers are the most common and are designed for a particular vendor’s database.
What are the components of JDBC?
JDBC has four major components that are used for the interaction with the database.
- JDBC API.
- JDBC Test Suite.
- JDBC Driver Manger.
- JDBC ODBC Bridge Driver.
Which JDBC driver is mostly used?
Type 4 drivers are the most common and are designed for a particular vendor’s database. In contrast, Type 3 is a single JDBC driver used to access a middleware server, which, in turn, makes the relevant calls to the database. A good example of Type 3 JDBC driver is the DataDirect SequeLink JDBC driver.
Which is main component of JDBC API?
Of the major JDBC components, only DriverManager is a concrete Java class. The rest of the components are Java interfaces that are implemented by the various driver packages.
Which is the most important package to be imported in JDBC?
JDBC API is mainly divided into two package. Each when we are using JDBC, we have to import these packages to use classes and interfaces in our application….Important classes and interface of javax. sql package.
classes/interface | Description |
---|---|
javax.sql.DataSource | Represent the DataSource interface used in an application. |
What are types of ResultSet?
There are two types of result sets namely, forward only and, bidirectional. Forward only ResultSet: The ResultSet object whose cursor moves only in one direction is known as forward only ResultSet. By default, JDBC result sets are forward-only result sets.
Can ResultSet be null in Java?
No matter how many rows are returned(starting from 0), the resultSet will never be null. The only case in which a resultset will remain null is when an exception is thrown… but the program flow will jump to the Exception handling block anyways.