SQL分区-阿里云

OBCP第四章 SQL调优-分区

分区表概述OceanBase数据库把普通的表的数据按照一定的规则划分到不同的区块内，同一区块的数据物理上存储在一起。这种划分区块的表叫做分区表，其中的每一个区块称作分区。分区技术是非常重要的分布式能力之一，它能解决大表的容量问题和并发访问时性能问题。普通的表只有一个分区，可以看作分区表的特例。每个分...

如何在 PolarDB-X 中优化慢 SQL

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flinkSQL怎么重分区啊？像ds那种的分区策略，SQL有吗？

Flink CDC我自定义了一个flink SQL的Kafka分区器，有遇到这个问题的吗？

Flink CDC我自定义了一个flink SQL的Kafka分区器，在写入的时候会报类型转换异常，有遇到这个问题的吗？

请教大家一个flink sql 消费kafka，开启了checkpoint。topic每个分区都是有

请教大家一个flink sql 消费kafka，开启了checkpoint。topic每个分区都是有数据，现在监控发现，flink作业在提交offset的时候，消费一段时间后，有1个partition的数据offset不提交了，但是这个partition一直有数据

大数据计算MaxCompute SQL脚本模式，这个地方老是报错，是分区变量不能通过select ?

大数据计算MaxCompute SQL脚本模式，这个地方老是报错，是分区变量不能通过select 方式赋值吗？

云数据仓库ADB中我在表里设定了以二级分区，假设按月为单位查询数据的时候，sql语句还是不变的吗？

"问题1：云数据仓库ADB中我在表里设定了以二级分区，假设按月为单位。我去查询数据的时候，sql语句还是不变的吧。还是说要先找到数据在哪个分区，然后再指定去具体的分区里查询数据？问题2：那如果我要找跨月的数据，就要指定两个分区是这个意思吗？"

Hologres使用copy到分区表需要导入到分区子表，有没有获取分区键和分区键值的sql语句

DataWorks中odps的分区表同步到mysql 分区读取不到是什么原因？sql查询分区正常？

DataWorks中odps的分区表同步到mysql 分区读取不到是什么原因？sql查询分区正常？https://di-cn-shenzhen.data.aliyun.com/web/di/instanceLog?id=358632330&resourceGroup=group_508686...

ADB默认生命周期是多久？单独查询每一个分区数据的sql呢？

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