BS ISO/IEC 19075-9:2022 - Page 2

Information technology. Guidance for the use of database language SQL. Online analytic processing (OLAP) capabilities (Guide/OLAP) | Status: Current

1 Scope 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”