In MongoDB 6.1 and prior, to use the clustered index, you must provide a hint because the query optimizer does not automatically select the clustered index. Limitations Clustered collection limitations: The clustered index key must be { _id: 1 }. You cannot transform a non-clustered collection...
index cci clustered columnstore ); This is equivalent to collections that you might find in classic NoSQL database because they store each JSON document as a single entity and optionally create indexes on these documents. The only difference is CLUSTERED COLUMNSTORE index on this table that prov...
I have nothing against Oracle at all, as I've said, over & over again in this thread as well as elsewhere. Oracle is great. Just so happens, I don't work in it & it doesn't pay my bills. But, I'd be perfectly happy to work with it, DB2, MySQL, Hadoop, MongoDB or whatever...
Key Difference - Clustered vs Nonclustered Index In a relational database, the data is stored in tables. These tables are related to each other using con