Note that this has nothing to do with accessing the database. You can access any database from virtually any language. What we’re talking about is the code that is executed by the database server.
While there are many various ‘database’ languages, we will only talk about the primary two: T-SQL, which is supported by SQL Server and Sybase, and PL/SQL, which is supported by Oracle.
Many other languages may be supported. For example, Oracle allows you to write stored procedures and triggers in Java, etc.
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