python3出现问题: 警告: No data sources are configured to run this SQL and provide advanced code assistance. Disable this inspection via problem menu (Alt+Enter). more... (Ctrl+F1) SQL dialect is not configured. PostgreSQL, SQL Server match best. more... (C…
警告: No data sources are configured to run this SQL and provide advanced code assistance. Disable this inspection via problem menu (Alt+Enter). more... (Ctrl+F1) SQL dialect is not configured. PostgreSQL, SQL Server match best. more... (Ctrl+F1) 这是两个警…
Idea2018的Springboot项目,如果里面有.sql文件,打开后,会提示"No data sources are configured to run this SQL and provide advanced" 其实这个提示,并不影响你敲代码,你可以手动通过其它数据库客户端工具来执行这些sql命令创建数据表结构.但是对于强迫症如我的这样子,并不能容忍~于是: 1.打开EDEA右侧的Database选项卡 如果你的IDEA没有出现右侧这个菜单,可以通过:File–>set…
通过Spark SQL External Data Sources JDBC实现将RDD的数据写入到MySQL数据库中. jdbc.scala重要API介绍: /** * Save this RDD to a JDBC database at `url` under the table name `table`. * This will run a `CREATE TABLE` and a bunch of `INSERT INTO` statements. * If you pass `tru…
在spark1.2版本中最令我期待的功能是External Data Sources,通过该API可以直接将External Data Sources注册成一个临时表,该表可以和已经存在的表等通过sql进行查询操作.External Data Sources API代码存放于org.apache.spark.sql包中. 具体的分析可参见OopsOutOfMemory的两篇精彩博文: http://blog.csdn.net/oopsoom/article/details/42061077 ht…
/******************************************************************************** * FAT-fs (mmcblk0p1): Volume was not properly unmounted. Some data may be corrupt. Please run fsck. * 说明: * 系统更新的时候遇到这个错误,记录一下处理步骤,其原因是我自己把其umount了 * 导致的问题. * * 2017-3-…