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If I have to work with localdb, do we need to install it separately?
I have SQL Server 2008 R2 Management Studio installed, SQL Server 2012 installed, .net 4.0.2 update installed. But I don't see localdb in the PC yet.
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Install LocalDB through the installation wizard or by using the SqlLocalDB. msi program. LocalDB is an option when installing SQL Server Express LocalDB. Select LocalDB on the Feature Selection/Shared Features page during installation.
LocalDB is absolutely supported in production. From the performance point of view it is identical to SQL Server Express, as they share the same database engine.
By default, LocalDB database creates “*. mdf” files in the C:/Users/"username" directory.
The installation copies a minimum set of files which are necessary to start SQL Server Database Engine. LocalDB supports the same T-SQL language and has the same limitation s as SQL Server Express.
But, without having to manage a full server instance of SQL Server. There are two methods of installing LocalDB, one of them is using the SqlLocalDB.msi program. The second method is an option when SQL Server Express 2012 or a newer version is being installed.
There are two methods of installing LocalDB, one of them is using the SqlLocalDB.msi program. The second method is an option when SQL Server Express 2012 or a newer version is being installed. Extension of database file of SQL Server Express LocalDB is the same as SQL Server Express and it is (.mdf).
Once installed, LocalDB is an instance of SQL Server Express that can create and open SQL Server databases. The system database files for the database are stored in the local AppData path, which is normally hidden. For example, C:Users<user>AppDataLocalMicrosoftMicrosoft SQL Server Local DBInstancesLocalDBApp1.
From MSDN
The primary method of installing LocalDB is by using the SqlLocalDB.msi program. LocalDB is an option when installing any SKU of SQL Server 2012 Express. Select LocalDB on the Feature Selection page during installation of SQL Server Express. There can be only one installation of the LocalDB binary files for each major SQL Server Database Engine version. Multiple Database Engine processes can be started and will all use the same binaries. An instance of the SQL Server Database Engine started as the LocalDB has the same limitations as SQL Server Express
Or you can download standalone SqlLocalDB.msi from the list of available downloads on the SQL Express downloading page
To locate localdb instance on your PC simply try to connect to (localdb)\Projects
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