How does Spring Boot execute DDL statements?

2 years ago
Benjamin Taylor
2 minutes

There are multiple ways to execute DDL statements in Spring Boot, but two common options are listed below:

  1. When using JdbcTemplate, it is a utility class provided by the Spring Framework for executing SQL statements which can carry out DDL statements. To start with, you will need to configure the database connection information in the configuration file of your Spring Boot application (application.properties or application.yml). Then, inject JdbcTemplate in your code and utilize its execute method to execute DDL statements.

Sample code:

@Autowired
private JdbcTemplate jdbcTemplate;

public void executeDDL() {
    String ddlSQL = "CREATE TABLE my_table (id INT PRIMARY KEY, name VARCHAR(100))";
    jdbcTemplate.execute(ddlSQL);
}
  1. When using SchemaExport in Hibernate: If you are using Hibernate as your ORM framework, you can utilize the SchemaExport utility class it provides to execute DDL statements. First, you need to configure the relevant Hibernate information in your Spring Boot application’s configuration file, then obtain the SessionFactory in your code and use its createSchemaExport method to execute the DDL statements.

Example code:

@Autowired
private SessionFactory sessionFactory;

public void executeDDL() {
    SchemaExport schemaExport = new SchemaExport(sessionFactory);
    schemaExport.create(true, true);
}

Both ways can execute DDL statements in Spring Boot, so you can choose the one that best fits your needs.

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