✅ Answers
SQL = Structured Query Language = a common form of asking questions to a database.
MS SQL Server = Private, paid for, supported by a private company (Microsoft), whom you’ll pay for support.
MySQL = My SQL = an open source database system, supported by the open source community (free), whom you’ll never pay for support.
They both compete and have great featuers. In the end, I would tell you that if you’re on a MS environment, with hundreds of thousands of critical records, you go with MS SQL.
If you are not, let’s say you’re on a website, for instance. Go with MySQL.
Same.
MSSQL is the abreviation for the Server system Microsoft has.
Compared to MySQL, which is the SQL server system that is open source, maintained by the MySQL company (Now owned by Sun)
My SQL server is open source and is owned by Sun Microsystems.
MS SQL server is closed source and is owned by Microsoft.