Learn the difference between CHAR and VARCHAR data types in SQL, how they affect storage and performance, and how to choose the best one for your database.

If I declare a varchar(1000) for a field and someone enters "hi", I'm wondering how the memory is allocated for it. I was under the impression that varchar2(1000) in Oracle would only allocate ...

SQL is neither the fastest nor the most elegant way to talk to databases, but it is the best way we have. Here’s why Today, Structured Query Language is the standard means of manipulating and ...

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