What is JDBC DatabaseMetaData interface?
The DatabaseMetaData interface returns the information of the database such as username, driver name, driver version, number of tables, number of views etc.
What is JDBC ResultSetMetaData interface?
The ResultSetMetaData interface returns the information of table such as total number of columns, column name, column type etc.
What is the purpose of JDBC ResultSet interface?
The ResultSet object represents a row of a table. It can be used to change the cursor pointer and get the information from the database.
What is JDBC Connection interface?
The Connection interface maintains a session with the database. It can be used for transaction management. It provides factory methods that returns the instance of Statement, PreparedStatement, CallableStatement and DatabaseMetaData.
What is the role of JDBC DriverManager class?
The DriverManager class manages the registered drivers. It can be used to register and unregister drivers. It provides factory method that returns the instance of Connection.
What are the JDBC API components?
The java.sql package contains interfaces and classes for JDBC API. Interfaces: · Connection · Statement · PreparedStatement · ResultSet · ResultSetMetaData · DatabaseMetaData · CallableStatement etc. Classes: · DriverManager · Blob · Clob · Types · SQLException etc.
What are the steps to connect to a database in java?
· Registering the driver class · Creating connection · Creating statement · Executing queries · Closing connection
What is JDBC Driver?
JDBC Driver is a software component that enables java application to interact with the database. There are 4 types of JDBC drivers: 1. JDBC-ODBC bridge driver 2. Native-API driver (partially java driver)…
What are MySQL functions in PHP?
Creating a function In MySQL, Function can also be created. A function always returns a value using the return statement. The function can be used in SQL queries. Syntax CREATE…
What are the commands of MySQL?
MySQL command-line client commands This command allows us to connect with MySQL Server with a username and passwords using below syntax. mysql -u -p; If you want to connect with…