1.float转double报错 报错类型: Max allowed object depth reached while trying to export from type System.Collections.Generic.List 序列化时候会遇到float和double互转问题: 注意这里double转float会导致精度丢失: 解决办法: JsonMapper.cs中添加几行代码: 2.Dictionary中key为int时报错 报错类型: InvalidCastException
DB2读取CLOB字段-was报错:操作无效:已关闭 Lob. ERRORCODE=-4470, SQLSTATE=null 解决方法,在WAS中要用的数据源里面配置连个定制属性: progressiveStreaming, with a value of 2 fullyMaterializeInputStreams, with a value of true
报错 java.lang.Exception: java.lang.ClassCastException: org.apache.hadoop.mapreduce.lib.input.FileSplit cannot be cast to org.apache.hadoop.mapred.FileSplit at org.apache.hadoop.mapred.LocalJobRunner$Job.runTasks(LocalJobRunner.java:462) at org.a
1.对于执行中的报错,可以在db2命令行下运行命令 : db2=>? SQLxxx 查看对应的报错原因及解决方法. 2.错误SQL0206N SQLSTATE=42703 检测到一个未定义的列.属性或参数名. SQL0206N "SQL_COU_ALL" is not valid in the context where it is used. SQLSTATE=42703 db2 => ? "42703" db2 =
1.对于执行中的报错,可以在db2命令行下运行命令 : db2=>? SQLxxx 查看对应的报错原因及解决方法. 2.错误SQL0206N SQLSTATE=42703 检测到一个未定义的列.属性或参数名. SQL0206N "SQL_COU_ALL" is not valid in the context where it is used. SQLSTATE=42703 db2 => ? "42703" db2 =
将 数据库表 映射成hibernate 实体类时 将number --- double 如果数据库中number 为空,查找数据时将报错 Can not set double field ***** to null value double 基本类型 不能为空 Double 对象类型 可以为空 所以需要 number --- Double