Spring Boot with JDBC — Spring Technical Interview Questions & Answers

Using JdbcTemplate for direct SQL access.

Spring Boot with JDBC

  • JDBC access in Boot often uses JdbcTemplate for simpler SQL calls.
  • You write SQL, JdbcTemplate handles connections and much boilerplate.
  • Good when you want full SQL control.
  • For richer object mapping, many teams prefer Spring Data JPA.
  • JdbcTemplate reduces classic JDBC try/catch noise.

Technical Interview Tip: JdbcTemplate = simpler JDBC.

Code Examples for Spring Boot with JDBC

Spring Boot with JDBC — working example

// application.properties
spring.datasource.url=jdbc:h2:mem:prep
spring.datasource.username=sa
spring.datasource.password=
spring.flyway.enabled=true

// JDBC sketch
// jdbcTemplate.query("SELECT id, email FROM users", mapper);

// Thymeleaf view name "home" -> templates/home.html
// <p th:text="${message}">msg</p>

Spring Boot with JDBC — boot wires DataSource/JDBC/Flyway from properties; Thymeleaf renders server-side HTML templates.

How to Explain Spring Boot with JDBC to an Interviewer

What is Boot with JDBC (sb)?

Used for a short Boot with JDBC sb example a small REST app Not just the heading

Give one small example of Boot with JDBC (sb).

the smallest Boot with JDBC sb example you can type Using JdbcTemplate for direct SQL access

What mistake do beginners make with Boot with JDBC (sb)?

only saying “Boot with JDBC sb” with no example Show the fix

Where do you use Boot with JDBC (sb)?

a small REST app a short Boot with JDBC sb example