SQL or Structured Query Language is a programming language used to manage relational databases and manipulate the data contained in them. SQL Server is a proprietary database system management tool that implements SQL code. Developed by IBM, SQL is a standard query language that adheres to ANSI protocols. Microsoft Corporation developed SQL Server to meet commercial demands. And SQL is implemented by the majority of the relational databases, including SQL Server. SQL Server cannot run on all platforms, whereas SQL is platform-independent. SQL Server is a relational database application that undergoes regular updates, but SQL is standardized and requires no updates.