在几个电子数据库管理系统中，最受欢迎和使用最广泛的两个是：Oracle和SQL Server。
Oracle支持的操作系统有：Windows、Linux、Solaris、HP-UX、OS X 等。
而SQL Server仅支持 Windows 和 Linux 操作系统。 Oracle 和 SQL Server 之间有几个基本变化，它们之间最重要的变化之一是它们使用的语言。 Oracle 使用过程语言 SQL，SQL Server 使用 Transact-SQL。
让我们看看 Oracle 和 SQL Server 的区别：
| S.NO | Oracle | SQL Server |
|---|---|---|
| 1. | PL/SQL is used by Oracle. | While T-SQL is used by SQL Server. |
| 2. | In terms of complexity, It is complex. | While it is simple, in terms of complexity. |
| 3. | Oracle is not easy to use. | While it is easy to use than oracle. |
| 4. | Oracle supports the operating systems such as: Windows, Linux, Solaris, HP-UX, OS X etc. | While SQL server supports only windows and Linux operating systems. |
| 5. | In Oracle, the users share the database. | While in sql server, the users do not share database. |
| 6. | There is packages are taken place in Oracle. | While there is packages are not taken place in SQL Server. |
| 7. | It is more powerful than SQL Server. | While it is less powerful than Oracle. |