Day: February 20, 2021

What do you mean by query processing? What are the various steps involved in query processing? Explain with the help of a block diagram.What do you mean by query processing? What are the various steps involved in query processing? Explain with the help of a block diagram.

02/20/2021 | Neupane | 0 Comment | 9:00 pm

Query processing includes translation of high-level queries into low-level expressions that can be used at the physical level of the file system, query optimization and actual execution of the query

Why concurrency Control needed?Why concurrency Control needed?

02/20/2021 | Neupane | 0 Comment | 8:14 pm

Why concurrency Control needed? sequentially with no overlap in time, no transaction concurrency exists. However, if concurrent transactions with interleaving operations are allowed in an uncontrolled