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@Bean
public DataSource dataSource(){
EmbeddedDatabaseBuilder embeddedDatabaseBuilder = new EmbeddedDatabaseBuilder();
return embeddedDatabaseBuilder.addScript("classpath:org/springframework/batch/core/schema-drop-h2.sql")
.addScript("classpath:org/springframework/batch/core/schema-h2.sql")
.addScript("classpath:employee.sql")
.setType(EmbeddedDatabaseType.H2)
.build();
}