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  • 时序数据库 概览

    1、常见时序数据库
    参考:
    https:
    //www.influxdata.com/time-series-database/#ranking
    https://db-engines.com/en/

    2、时序数据库
        <1> riakTS (分布式 时序数据库)
        <2> 特点
        设置过期类型:http://docs.basho.com/riak/ts/1.5.2/using/deleting-data/
        查询:
            select/IS[NOT]NULL/:http://docs.basho.com/riak/ts/1.5.2/using/querying/select/
            group by(支持多字段排序): http://docs.basho.com/riak/ts/1.5.2/using/querying/select/group-by/
            聚合(COUNT(),SUM(),MEAN(),AVG(),STDDEV(),STDDEV_SAMP(),STDDEV_POP()):http://docs.basho.com/riak/ts/1.5.2/using/querying/select/aggregate-functions/
            ordery by : http://docs.basho.com/riak/ts/1.5.2/using/querying/select/order-by/
            limit: http://docs.basho.com/riak/ts/1.5.2/using/querying/select/order-by/#limit-results
            off-results(跳过第几个后获取): http://docs.basho.com/riak/ts/1.5.2/using/querying/select/order-by/#offset-results
            Arithmetic Operations(算术操作):http://docs.basho.com/riak/ts/1.5.2/using/querying/select/arithmetic-operations/        
            删除:与关系型数据库类似
            描述表结构:http://docs.basho.com/riak/ts/1.5.2/using/querying/describe/
            表状态:http://docs.basho.com/riak/ts/1.5.2/using/querying/show-tables/
            表创建语句:http://docs.basho.com/riak/ts/1.5.2/using/querying/show-create-table/
            explain:查看SQL执行效率
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  • 原文地址:https://www.cnblogs.com/lvlin241/p/10415209.html
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