DatabaseOperator operator = ...;
//DDL
operator.ddl()
        .createOrAlter("test_table")
        .addColumn().name("id").number(32).primaryKey().comment("ID").commit()
        .addColumn().name("name").varchar(128).comment("名称").commit()
        .commit()
        .sync(); // reactive
     
//Query   
List<Map<String,Object>> dataList= operator.dml().query()
         .select("id")
         .from("test_table")
         .where(dsl->dsl.is("name","张三"))
         .fetch(mapList())
         .sync(); // reactive