5 Claims About SQL, Explained
1. Is SQL is a declarative language?
First of all, let's define the terms.
A declarative language describes the result, not the process to achieve it. In a declarative language you tell "what do I need".
A procedural language describes control flow: exact steps the machine needs to perform in order to achieve this result. In a procedural language you tell "what do you do".
SQL, as it was originally designed, is a declarative language.
For instance you need to know how many customers above 40 live in each city. You issue a query like:
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Manoj
15 Sep 15 at 19:06
@Manoj: seems they’re out of business
Quassnoi
15 Sep 15 at 19:12
I thought the whole point of having your own website would be to actually have your own content there :) Maybe you could just update the link to the one from the Internet Archive? I found it: https://web.archive.org/web/20140327174756/http://tech.pro/tutorial/1631/5-claims-about-sql-explained
Alternatively, just include the actual contents here :)
Carl-Erik Kopseng
28 Oct 20 at 13:44
Unfortunately, it’s not my own content, I got paid for writing it and it belongs to whoever was running that site.
Quassnoi
28 Oct 20 at 19:23
What a pity, you should know what exactly you are signing under: /
rozwoj oprogramowania
17 Sep 21 at 20:05