DANGER!!!
In hybris hac, you cannot run DDL (data definition language) commands. You need unprotected connection to db. You can use below groovy example. Attention: DDL commands are dangerous!!!
import java.util.List; import javax.sql.DataSource; import org.springframework.jdbc.core.JdbcTemplate; import org.springframework.jdbc.datasource.DriverManagerDataSource; def config = spring.getBean("configurationService").getConfiguration(); DriverManagerDataSource dataSource = new DriverManagerDataSource(); dataSource.setDriverClassName(config.getString("db.driver")); dataSource.setUrl(config.getString("db.url")); dataSource.setUsername(config.getString("db.username")); dataSource.setPassword(config.getString("db.password")); JdbcTemplate jdbc = new JdbcTemplate(dataSource) jdbc.execute("ALTER TABLE MYTABLE ALTER (P_MYFIELD BIGINT)");