https://docs.spring.io/spring-framework/docs/current/javadoc-api/org/springframework/jdbc/core/JdbcTemplate.html JdbcTemplate (Spring Framework 6.2.1 API)Execute a query for a result object, given static SQL. Uses a JDBC Statement, not a PreparedStatement. If you want to execute a static query with a PreparedStatement, use the overloaded JdbcOperations.queryForObject(String, Class, Object...) me..

https://docs.spring.io/spring-boot/reference/data/sql.html SQL Databases :: Spring BootThe Reactive Relational Database Connectivity (R2DBC) project brings reactive programming APIs to relational databases. R2DBC’s Connection provides a standard method of working with non-blocking database connections. Connections are provided by using a Cdocs.spring.io 1. 프로젝트 설정1-1. 의존성 추가Sprign Boot 프로젝트의 bui..