The history of the Silk Road pre-dates the Han Dynasty in practice, however, as the Persian Royal Road, which would come to serve as one of the main arteries of the Silk Road, was established during the Achaemenid Empire (500-330 BCE).
To use MATCH INDEX with multiple criteria we have to make what is called an âArray formulaâ. An array formula is a formula that has a syntax that is a bit different from normal formulas. We will go about this in 2 steps: We will insert a normal MATCH INDEX formula. Convert it to an array formula.
Hash tables may be used as in-memory data structures. Hash tables may also be adopted for use with persistent data structures; database indexes commonly use disk-based data structures based on hash tables. Hash tables are also used to speed-up string searching in many implementations of data compression.