In JDBC, what is the purpose of the ResultSetMetaData interface?
Which JDBC constant specifies read-only access for a ResultSet?
What is Connection pooling in JDBC and why is it used?
In JDBC, what is the purpose of CallableStatement?
What is the purpose of Connection.commit() in JDBC?
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Which JDBC method executes UPDATE, INSERT, or DELETE statements?
What is the benefit of using PreparedStatement over Statement for repeated queries?
What does ResultSetMetaData.getColumnCount() return?
In JDBC, which class is used to retrieve database metadata information?
What is the difference between execute() and executeUpdate() methods?
Which statement should be used when you need to retrieve column information without executing multiple queries?
What happens if you call next() on a ResultSet after the last row?
Which JDBC driver type is considered the most portable across different databases?
A developer needs to execute a query that returns multiple result sets. Which Statement type should be used?
What is the purpose of Connection pooling in JDBC applications?
Consider a scenario where a developer uses getConnection() without closing it. What is the potential impact?
What does the setMaxRows() method in Statement do?
In a multi-threaded JDBC application, what should be the approach for Connection object usage?
Which method in ResultSet is used to check if a column value is NULL?
In JDBC 2024-25, which data type mapping is incorrect for Java to SQL?
