Linqer is a SQL to LINQ conversion tool. It helps learning LINQ and convert existing SQL statements.

ModelRight Professional can reverse engineer your existing database to get a graphical view of it, generate all the SQL statements to create the database, or synchronize your database model with the database to keep your design up to date.

dbForge SQL Complete is a useful add-in for Microsoft SQL Server Management Studio and Microsoft Visual Studio. Free and advanced paid editions of the SQL code formatter offer powerful autocompletion and formatting of T-SQL code that replaces native Microsoft T-SQL Intellisense.