SAP HANA 2.0 Administration · Table Internals: Stores, Compression, Partitioning & MVCC

You need a SELECT guaranteed to return exactly one row to test a function or use SQL as a calculator. Which built-in fits, and what's its equivalent in other DBs?

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More in Table Internals: Stores, Compression, Partitioning & MVCC

A row-store table has a single-column integer sequence key; another has a composite character key. Which gets plain BTREE and which gets CPBTREE, and why does that make CPBTREE the de-facto default for SAP?

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