ISO/IEC TR 19075-9:2020 信息技术数据库语言 数据库语言SQL的使用指南 第9部分：联机分析处理（OLAP）能力

标准编号：ISO/IEC TR 19075-9:2020

中文名称：信息技术数据库语言 数据库语言SQL的使用指南 第9部分：联机分析处理（OLAP）能力

英文名称：Information technology database languages — Guidance for the use of database language SQL — Part 9: Online analytic processing (OLAP) capabilities

发布日期：2020-09

标准范围

This document discusses the syntax and semantics for including online analytic processing (OLAP)
capabilities in SQL, as defined in ISO/IEC 9075-2.
It discusses the following features regarding OLAP capabilities of the SQL language:
— Feature T611, “Elementary OLAP operations”,
— Feature T612, “Advanced OLAP operations”,
— Feature T614, “NTILE function”,
— Feature T615, “LEAD and LAG functions”,
— Feature T616, “Null treatment option for LEAD and LAG functions”,
— Feature T617, “FIRST_VALUE and LAST_VALUE functions”,
— Feature T618, “NTH_VALUE function”,
— Feature T619, “Nested window functions”,
— Feature T620, “WINDOW clause: GROUPS option”,
— Feature T621, “Enhanced numeric functions”.

标准预览图