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  • DataBase · 理论基础 · HTAP列存引擎探秘

    1068 2022-09-02 《数据库内核月报》
    背景 SQL Server:基于索引组织表的列存 Oracle:基于堆表的列存 SAP HANA:同时服务TP和AP的列存 TiFlash:与行存松耦合的列存 HTAP列存引擎设计选择 参考文献 背景 TP查询和AP查询具有截然不同的特点,促使TP数据库和AP数据库采用不同的设计理念。然而,在一些业务中,事务处理的同时往往会伴随一些分析型的...
  • Connectors

    Connectors Connectors This chapter describes the connectors available in Presto to access data from different data sources. Accumulo Connector BigQuery Connector Black Hole ...
  • 备忘表

    备忘表 备注 大多数算法同时处理类型和值(参见类型计算 ) 算法通常返回一个新容器作为它们的返回结果;不会更改原容器(参见算法 ) 所有的算法都是constexpr 函数对象 容器 说明 tuple 固定长度的基于索引的泛型异构序列,可将它视为异构对象中的std::vector optional ...
  • Model discovery

    825 2019-09-24 《LoopBack 4 Document》
    Synopsis Overview Options Synopsis LoopBack makes it simple to create models from an existing relational database.This process is called discovery and is supported by the fol...
  • 7. Database access

    7. Database access 7.1. ConnectionProvider 7.2. Using DataSources 7.3. Driver Configuration 7.4. Using c3p0 7.5. Using Proxool 7.5.1. Using existing Proxool pools 7.5.2. Confi...
  • Community connectors

    990 2019-09-24 《LoopBack 4 Document》
    In addition to the connectors that StrongLoop provides and maintains, there are a number of connectors created by the open-source community. Warning: IBM and StrongLoop do not s...
  • CREATE-CATALOG

    CREATE-CATALOG Name Description Example Keywords Best Practice CREATE-CATALOG Name CREATE CATALOG Description This statement is used to create an external catalog Synta...
  • CREATE-CATALOG

    CREATE-CATALOG Name Description Example Keywords Best Practice CREATE-CATALOG Name CREATE CATALOG Description This statement is used to create an external catalog Synta...
  • JDBC

    JDBC Usage Syntax Parameter Description Driver path Lowercase table name synchronization Specify synchronization database: Query Example Predicate Pushdown Line Limit Wri...
  • Grafana Enterprise

    Grafana Enterprise Authentication Team sync Enhanced LDAP integration SAML authentication Enterprise features Enterprise data sources Try Grafana Enterprise Grafana Enter...