我想删除MySQL表中的数百万行,而且它在SQLException中失败--如果我一次尝试全部删除它们,那么连接是关闭的异常,因此按照中的建议,决定用较小的块删除它们,但是我要用这个JPA原生查询获得SQLException@Query(nativeQuery = true, value = "delete from customer where user_id = :userId ORDER BY id limit :limit")如果我在上面的查
如何执行不是程序驱动程序部分的例程的火花sql查询?from pyspark.sql import SQLContext
data = SQLContext.sql("select * from zip_data where STATEFP ='{sfp}' and COUNTYFP = '{cfp}' ".format(sfp=rec[0], cfp=rec[1]))
我用Spring和camunda spring启动器创建了一个新项目。Caused by: org.camunda.bpm.engine.exception.NullValueException: couldn't deduct database type from database product name 'HSQL Database Engine': databaseType is null
at sun.reflect.Nati