文档SQL命令的相关内容

阿里云文档 2026-06-11

使用Jindo sql分析JindoFS和OSS访问日志及元数据-开源大数据平台 E-MapReduce-阿里云

Jindo sql命令是JindoFS自带的工具，方便您分析JindoFS访问日志、元数据和OSS访问日志。本文为您介绍如何使用Jindo sql命令，分析JindoFS访问日志、元数据和OSS访问日志的数据。

阿里云文档 2026-05-27

如何使用SQL命令COMPACTION

Compaction可以把所有的数据文件按照一定策略进行Merge操作，可提升查询效率。

阿里云文档 2026-05-20

PolarDB MySQL支持通过控制台或SQL命令管理边缘集群账号密码，包括修改密码、设置过期时间和配置密码验证功能。

您可以在控制台或使用SQL命令来管理PolarDB MySQL版边缘集群的账号密码。

阿里云文档 2026-04-16

PolarDB MySQL版边缘集群支持通过控制台或SQL命令管理高权限、普通及全局只读账号的数据库权限，包括授予、修改和重置多种权限类型。

您可以在控制台或使用SQL命令来管理PolarDB MySQL版边缘集群的账号权限。

文章 2017-11-22 来自：开发者社区

一些有用但文档中没有介绍的sql server DBCC命令

以下是一些sql server的DBCC命令，可以在优化 sql server时使用。 1．　DBCC CacheStats ：显示存在于当前 buffer Cache 中的对象的信息，例如：hit rates,编译的对象和执行计划例： DBCC CACHESTATS 执行结果（缩略） Object Name &...

问答 2017-05-19 来自：开发者社区

使用MaxCOmpute python SDK读取ODPS上一张表，做一些处理后，写入另外一张表，读取和写入都是多线程的。遇到问题1. 多线程处理时，每个线程每次循环（每次循环处理100条数据）均新建了一个odps连接，有没有可能是odps连接太多了？文档中没有发现如何关闭这个odps连接？ 2. 在ODPS客户端，操作一些sql命令时，也是有超时的，客户端也有超时的话，是不是可以先排除程序的问题？如下： Aliyun ODPS Command Line Tool Version 0.21.1 @Copy

使用MaxCOmpute python SDK读取ODPS上一张表，做一些处理后，写入另外一张表，读取和写入都是多线程的。遇到问题1. 多线程处理时，每个线程每次循环（每次循环处理100条数据）均新建了一个odps连接，有没有可能是odps连接太多了？文档中没有发现如何关闭这个odps连接？2. 在ODPS客户端，操作一些sql命令时，也是有超时的，客户端也有超时的话...

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