WorksheetsExploring Spring JDBC Concepts
Total questions: 10
Worksheet time: 5mins
What is the purpose of a DataSource in Spring JDBC?
To store user credentials securely.
The purpose of a DataSource in Spring JDBC is to manage database connections.
To optimize SQL queries for performance.
To provide a user interface for database management.
How do you configure a DataSource in a Spring application?
Use @Bean method in Java config or
Use @Autowired annotation to inject DataSource directly.
Configure DataSource using properties file only.
Define DataSource using @Component annotation.
What is the role of JdbcTemplate in Spring JDBC?
JdbcTemplate is used for managing transactions in Spring Boot.
JdbcTemplate is a central class in Spring JDBC that simplifies database operations and error handling.
JdbcTemplate is a utility for creating RESTful web services in Spring.
JdbcTemplate is a class that handles HTTP requests in Spring MVC.
Explain the difference between RowMapper and ResultSetExtractor.
RowMapper maps individual rows to objects; ResultSetExtractor processes the entire ResultSet.
RowMapper processes the entire ResultSet; ResultSetExtractor maps individual rows to objects.
RowMapper is specific to SQL queries; ResultSetExtractor is used for NoSQL databases.
RowMapper is used for batch processing; ResultSetExtractor is for single row retrieval.
How can you execute a SQL statement using JdbcTemplate?
Call the 'run' method on JdbcTemplate to execute SQL commands.
Use JdbcTemplate's 'update' method for executing SQL statements.
Utilize JdbcTemplate's 'query' method for executing SQL statements.
Use JdbcTemplate's 'execute' method for executing SQL statements.
What are named parameters in Spring JDBC and how are they used?
Named parameters are only used in Hibernate.
Named parameters are SQL keywords that cannot be changed.
Named parameters in Spring JDBC are placeholders in SQL queries that are mapped to values using a Map, improving code clarity.
Named parameters are used to define database connections.
Describe how to call a stored procedure using JdbcTemplate.
Use JdbcTemplate.execute() to call a stored procedure directly.
Call the stored procedure using a SQL query string with JdbcTemplate.
Use SimpleJdbcCall to call a stored procedure with JdbcTemplate.
Use NamedParameterJdbcTemplate for calling stored procedures.
What is transaction management in Spring JDBC?
Transaction management in Spring JDBC is the process of managing database transactions to ensure data integrity and consistency.
Transaction management in Spring JDBC is only for read operations.
Transaction management in Spring JDBC is solely about logging transactions.
Transaction management in Spring JDBC is not necessary for small applications.
How do you handle SQL parameters in a JdbcTemplate query?
Use a separate method to handle SQL parameters before the query.
Use JdbcTemplate's query or update methods with a SQL string and an array of parameters.
Pass parameters directly in the SQL string without placeholders.
Use JdbcTemplate's execute method with a single SQL string.
What is the significance of the Function interface in Spring JDBC?
The Function interface manages application configuration settings in Spring.
The Function interface is used for defining HTTP endpoints in Spring.
The Function interface is primarily for handling user authentication in Spring.
The Function interface enables modular and reusable database operations in Spring JDBC.
