postgresql spring boot code example

Example 1: how to add postgres to spring boot

spring.main.banner-mode=off
logging.level.org.springframework=ERROR

spring.jpa.hibernate.ddl-auto=none

spring.datasource.initialization-mode=always
spring.datasource.platform=postgres
spring.datasource.url=jdbc:postgresql://localhost:5432/testdb
spring.datasource.username=postgres
spring.datasource.password=s$cret

spring.jpa.properties.hibernate.jdbc.lob.non_contextual_creation=true

Example 2: spring boot postgres

<dependency>
    <groupId>org.postgresql</groupId>
    <artifactId>postgresql</artifactId>
    <version>42.2.18</version>
</dependency>

Example 3: Calling postgres function from spring boot

Author a = em.createQuery("SELECT a FROM Author a WHERE a.id = function('calculate', 1, 2)", Author.class).getSingleResult();

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Java Example

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