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HetuEngine SQL语法

数据湖探索 DLI-使用前必读:HetuEngine简介

HetuEngine简介 HetuEngine是华为推出的高性能交互式SQL分析及数据虚拟化引擎，能够与大数据生态无缝融合，实现海量数据的秒级交互式查询。 DLI +HetuEngine能够快速处理大规模数据集的查询请求，迅速和高效从大数据中提取信息，极大地简化了数据的管理和分析流程，提升大数据环境下的索引和查询性能。 TB级数据秒级响应： HetuEngine通过自动优化资源与负载的配比，能够对TB级数据实现秒级响应，极大提升了数据查询的效率。 Serverless资源开箱即用： Serverless服务模式无需关注底层配置、软件更新和故障问题，资源易维护，易扩展。多种资源类型满足不同场景业务需求：共享资源池：按量计费，提供极致的性价比资源。独享资源池：提供独享资源池，满足高性能资源需求。

数据湖探索 DLI HetuEngine SQL语法
数据湖探索 DLI-预留关键字

预留关键字表1罗列了系统预留的关键字，以及它们在其他SQL标准中是否为预留关键字。如果需要使用这些关键字作为标识符，请加注双引号。表1 关键字 Keyword SQL：2016 SQL-92 ALTER reserved reserved AND reserved reserved AS reserved reserved BETWEEN reserved reserved BY reserved reserved CASE reserved reserved CAST reserved reserved CONSTRAINT reserved reserved CREATE reserved reserved CROSS reserved reserved CUBE reserved reserved CURRENT_DATE reserved reserved CURRENT_PATH reserved reserved CURRENT_ROLE reserved reserved CURRENT_TIME reserved reserved CURRENT_TIMESTAMP reserved reserved CURRENT_USER reserved reserved DEALLOCATE reserved reserved DELETE reserved reserved DESCRIBE reserved reserved DISTINCT reserved reserved DROP reserved reserved ELSE reserved reserved END reserved reserved ESCAPE reserved reserved EXCEPT reserved reserved EXECUTE reserved reserved EXISTS reserved reserved EXTRACT reserved reserved FALSE reserved reserved FOR reserved reserved FROM reserved reserved FULL reserved reserved GROUP reserved reserved GROUPING reserved reserved HAVING reserved reserved IN reserved reserved INNER reserved reserved INSERT reserved reserved INTERSECT reserved reserved INTO reserved reserved IS reserved reserved JOIN reserved reserved LEFT reserved reserved LIKE reserved reserved LOCALTIME reserved reserved LOCALTIMESTAMP reserved reserved NATURAL reserved reserved NORMALIZE reserved reserved NOT reserved reserved NULL reserved reserved ON reserved reserved OR reserved reserved ORDER reserved reserved OUTER reserved reserved PREPARE reserved reserved RECURSIVE reserved reserved RIGHT reserved reserved ROLLUP reserved reserved SELECT reserved reserved TABLE reserved reserved THEN reserved reserved TRUE reserved reserved UESCAPE reserved reserved UNION reserved reserved UNNEST reserved reserved USING reserved reserved VALUES reserved reserved WHEN reserved reserved WHERE reserved reserved WITH reserved reserved 父主题： HetuEngine SQL语法

数据湖探索 DLI HetuEngine SQL语法