In computing, Extract, Transform and Load (ETL) refers to a process in database usage and especially in data warehousing that performs: Data extraction â extracts data from homogeneous or heterogeneous data sources.
(Beginner) Reading astronomy books, I've come up with the word singularity a lot, but I can't figure out what it exactly means. A singularity means a point where some property is infinite. For example, at the center of a black hole, according to classical theory, the density is infinite (because a finite mass is compressed to a zero volume). Hence it is a singularity.
1. the state, fact, or quality of being singular. 2. a singular, unusual, or unique quality or thing; peculiarity. 3. a point at which a mathematical function of real or complex variables is not differentiable or analytic. 4. a region of infinite density, as in a black hole.