-->APPLIES TO: SQL Server Azure SQL Database Azure SQL Data Warehouse Parallel Data Warehouse
APPLIES TO: SQL Server Azure SQL Database Azure SQL Data Warehouse Parallel Data Warehouse
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I recently found software package 'Microsoft SQL Server Desktop Engine(Pinnaclesys)' on my computer. I don't know how it got there. What does it do for me? Can I delete it?
Microsoft SQL Server runs on the operating systems as a service. A service is a type of application that runs in the system background. Services usually provide core operating system features, such as Web serving, event logging, or file serving. Services can run without showing a user interface on the computer desktop. The SQL Server Database Engine, SQL Server Agent, and several other SQL Server components run as services. These services typically are started when the operating system starts. This depends on what is specified during setup; some services are not started by default. This section describes the management of the various SQL Server services. Before you log in to an instance of SQL Server, you need to know how to start, stop, pause, resume, and restart an instance of SQL Server. After you are logged in, you can perform tasks such as administering the server or querying a database.
Using the SQL Server Service
When you start an instance of SQL Server Database Engine, you are starting the SQL Server service. After you start the SQL Server service, users can establish new connections to the server. The SQL Server service can be started and stopped as a service, either locally or remotely. The SQL Server service is referred to as SQL Server (MSSQLSERVER) if it is the default instance, or MSSQL$*<instancename>*if it is a named instance.
Using SQL Server Configuration Manager
SQL Server Configuration Manager allows you to stop, start, or pause various SQL Server services.
Note
SQL Server Configuration Manager cannot manage SQL Server 2000 (8.x) services.
You can also use SQL Server Configuration Manager to view the properties of the selected service. SQL Server Configuration Manager is a Microsoft Management Console (MMC) snap-in. For more information about MMC and how a snap-in works, see Windows Help.
To access SQL Server Configuration Manager
- On the Start menu, point to All Programs, point to Microsoft SQL Server 2017, point to Configuration Tools, and then click SQL Server Configuration Manager.
To access SQL Server Configuration Manager Using Windows 8
Because SQL Server Configuration Manager is a snap-in for the Microsoft Management Console program and not a stand-alone program, SQL Server Configuration Manager not does not appear as an application when running Windows 8.0. To open SQL Server Configuration Manager, in the Search charm, under Apps, type SQLServerManager12.msc (for SQL Server 2014 (12.x)), SQLServerManager11.msc (for SQL Server 2012 (11.x)), or SQLServerManager10.msc for (SQL Server 2008), and then press Enter.
In this Section
Security Requirements for Managing Services | Prevent Automatic Startup of an Instance of SQL Server (SQL Server Configuration Manager) |
Configure Windows Service Accounts and Permissions | Change the Service Startup Account for SQL Server (SQL Server Configuration Manager) |
Run SQL Server With or Without a Network | Configure Server Startup Options (SQL Server Configuration Manager) |
SQL Server Browser Service (Database Engine and SSAS) | Change the Password of the Accounts Used by SQL Server (SQL Server Configuration Manager) |
Database Engine Service Startup Options | Configure SQL Server Error Logs |
Start, Stop, Pause, Resume, Restart the Database Engine, SQL Server Agent, or SQL Server Browser Service | Change Server Authentication Mode |
Start SQL Server in Single-User Mode | SQL Writer Service |
Start SQL Server with Minimal Configuration | Broadcast a Shutdown Message (Command Prompt) |
Connect to Another Computer (SQL Server Configuration Manager) | Log In to an Instance of SQL Server (Command Prompt) |
Set an Instance of SQL Server to Start Automatically (SQL Server Configuration Manager) | Configure File System Permissions for Database Engine Access |
Related Content
-->Microsoft SQL Server Express LocalDB is a feature of SQL Server Express targeted to developers. It is available on SQL Server Express with Advanced Services.
LocalDB installation copies a minimal set of files necessary to start the SQL Server Database Engine. Once LocalDB is installed, you can initiate a connection using a special connection string. When connecting, the necessary SQL Server infrastructure is automatically created and started, enabling the application to use the database without complex configuration tasks. Developer Tools can provide developers with a SQL Server Database Engine that lets them write and test Transact-SQL code without having to manage a full server instance of SQL Server.
Try it out!
- To download and install SQL Server Express LocalDB, go to SQL Server downloads. LocalDB is a feature you select during installation, and is available when you download the media. If you download the media, either choose Express Advanced or the LocalDB package. In the Visual Studio Installer, you can install SQL Server Express LocalDB as part of the .NET desktop development workload or as an individual component.
Tip
You can also install LocalDB as part of Visual Studio. During Visual Studio installation, select the .NET desktop development workload, which includes SQL Server Express LocalDB.
- Have an Azure account? Get started and spin up a virtual machine with SQL Server 2016 (13.x) already installed.
Install LocalDB
Install LocalDB through the installation wizard or by using the SqlLocalDB.msi program. LocalDB is an option when installing SQL Server 2016 Express.
Select LocalDB on the Feature Selection/Shared Features page during installation. 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.
An instance of SQL Server Express LocalDB is managed by using the
SqlLocalDB.exe
utility. SQL Server Express LocalDB should be used in place of the SQL Server Express user instance feature, which was deprecated.Description
The LocalDB setup program uses the
SqlLocalDB.msi
program to install the necessary files on the computer. 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
. User database files are stored where the user designates, typically somewhere in the C:Users<user>Documents
folder.For more information about including LocalDB in an application, see Visual Studio Local Data Overview, Create a database and add tables in Visual Studio.
For more information about the LocalDB API, see SQL Server Express LocalDB Reference.
The
SqlLocalDb
utility can create new instances of LocalDB, start and stop an instance of LocalDB, and includes options to help you manage LocalDB.For more information about the SqlLocalDb
utility, see SqlLocalDB Utility.The instance collation for LocalDB is set to
SQL_Latin1_General_CP1_CI_AS
and cannot be changed. Database-level, column-level, and expression-level collations are supported normally. Contained databases follow the metadata and tempdb
collations rules defined by Contained Database Collations.Download blackberry app world mobile. Welcome to the official store for BlackBerry World. Discover new apps, games, music and videos to buy or download for free. Welcome to the official store for BlackBerry World. Discover new apps, games, music and videos to buy or download for free. Purchase on your Smartphone. Personalize your BlackBerry device with entertainment and social networking apps or apps that will boost your productivity. Download or buy apps from BlackBerry World. Download BlackBerry App World for free to load up your BlackBerry smartphone with games, social networking, online shopping, personal productivity, organization tools and other fun and functional. The BlackBerry Marketplace for BlackBerry Enterprise Applications provides BlackBerry customers a wide range of secured BlackBerry apps built by our BlackBerry partners that extend your Good Dynamics and BlackBerry Enterprise Servers Blackberry environments. Dec 13, 2012 If you cannot find it on your legacy BlackBerry smartphone (Curve, Torch, Bold devices), you can download BlackBerry AppWorld to your phone in a few easy steps. It is a fairly common problem experienced by BlackBerry users. For some reason, BBWorld cannot.
Restrictions
- LocalDB cannot be a merge replication subscriber.
- LocalDB does not support FILESTREAM.
- LocalDB only allows local queues for Service Broker.
- An instance of LocalDB owned by the built-in accounts such as
NT AUTHORITYSYSTEM
can have manageability issues due to windows file system redirection. Instead use a normal windows account as the owner.
Automatic and named instances
LocalDB supports two kinds of instances: Automatic instances and named instances.
- Automatic instances of LocalDB are public. They are created and managed automatically for the user and can be used by any application. One automatic instance of LocalDB exists for every version of LocalDB installed on the user's computer. Automatic instances of LocalDB provide seamless instance management. There is no need to create the instance; it just works. This feature allows for easy application installation and migration to a different computer. If the target machine has the specified version of LocalDB installed, the automatic instance of LocalDB for that version is available on the target machine as well. Automatic instances of LocalDB have a special pattern for the instance name that belongs to a reserved namespace. Automatic instances prevents name conflicts with named instances of LocalDB. The name for the automatic instance is MSSQLLocalDB.
- Named instances of LocalDB are private. They are owned by a single application that is responsible for creating and managing the instance. Named instances provide isolation from other instances and can improve performance by reducing resource contention with other database users. Named instances must be created explicitly by the user through the LocalDB management API or implicitly via the app.config file for a managed application (although managed application may also use the API, if desired). Each named instance of LocalDB has an associated LocalDB version that points to the respective set of LocalDB binaries. The instance name of a LocalDB is sysname data type and can have up to 128 characters. (This differs from regular named instances of SQL Server, which limits names to regular NetBIOS names of 16 ASCII chars.) The name of an instance of LocalDB can contain any Unicode characters that are legal within a filename.A named instance that uses an automatic instance name becomes an automatic instance.
Different users of a computer can have instances with the same name. Each instance is a different processes running as a different user.
Shared instances of LocalDB
To support scenarios where multiple users of the computer need to connect to a single instance of LocalDB, LocalDB supports instance sharing. An instance owner can choose to allow the other users on the computer to connect the instance. Both automatic and named instances of LocalDB can be shared. To share an instance of LocalDB, a user selects a shared name (alias) for it. Because the shared name is visible to all users of the computer, this shared name must be unique on the computer. The shared name for an instance of LocalDB has the same format as the named instance of LocalDB.
Only an administrator on the computer can create a shared instance of LocalDB. A shared instance of LocalDB can be unshared by an administrator or by the owner of the shared instance of LocalDB. To share and unshared an instance of LocalDB, use the
LocalDBShareInstance
and LocalDBUnShareInstance
methods of the LocalDB API, or the share and unshared options of the SqlLocalDb
utility.Start LocalDB and connect to LocalDB
Microsoft Sql Server Desktop Engine (sony_mediamgr)
Connect to the automatic instance
The easiest way to use LocalDB is to connect to the automatic instance owned by the current user by using the connection string
Server=(localdb)MSSQLLocalDB;Integrated Security=true
. To connect to a specific database by using the file name, connect using a connection string similar to Server=(LocalDB)MSSQLLocalDB; Integrated Security=true ;AttachDbFileName=D:DataMyDB1.mdf
.Note
The first time a user on a computer tries to connect to LocalDB, the automatic instance must be both created and started. The extra time for the instance to be created can cause the connection attempt to fail with a timeout message. When this happens, wait a few seconds to let the creation process complete, and then connect again.
Create and connect to a named instance
In addition to the automatic instance, LocalDB also supports named instances. Use the SqlLocalDB.exe program to create, start, and stop a named instance of LocalDB. For more information about SqlLocalDB.exe, see SqlLocalDB Utility.
The last line above, returns information similar to the following.
Name | LocalDBApp1 |
Version | <Current Version> |
Shared name | ' |
Owner | '<Your Windows User>' |
Auto create | No |
State | running |
Last start time | <Date and Time> |
Instance pipe name | np:.pipeLOCALDB#F365A78Etsqlquery |
Note
If your application uses a version of .NET before 4.0.2 you must connect directly to the named pipe of the LocalDB. The Instance pipe name value is the named pipe that the instance of LocalDB is listening on. The portion of the Instance pipe name after LOCALDB# will change each time the instance of LocalDB is started. To connect to the instance of LocalDB by using SQL Server Management Studio, type the instance pipe name in the Server name box of the Connect to Database Engine dialog box. From your custom program you can establish connection to the instance of LocalDB using a connection string similar to
SqlConnection conn = new SqlConnection(@'Server=np:.pipeLOCALDB#F365A78Etsqlquery');
Connect to a shared instance of LocalDB
Microsoft Sql Server Desktop Engine Windows 7
To connect to a shared instance of LocalDB add
.
(backslash + dot + backslash) to the connection string to reference the namespace reserved for shared instances. For example, to connect to a shared instance of LocalDB named AppData
use a connection string such as (localdb).AppData
as part of the connection string. A user connecting to a shared instance of LocalDB that they do not own must have a Windows Authentication or SQL Server Authentication login.Troubleshooting
For information about troubleshooting LocalDB, see Troubleshooting SQL Server 2012 Express LocalDB.
Permissions
An instance of SQL Server 2016 ExpressLocalDB is an instance created by a user for their use. Any user on the computer can create a database using an instance of LocalDB, store files under their user profile, and run the process under their credentials. By default, access to the instance of LocalDB is limited to its owner. The data contained in the LocalDB is protected by file system access to the database files. If user database files are stored in a shared location, the database can be opened by anyone with file system access to that location by using an instance of LocalDB that they own. If the database files are in a protected location, such as the users data folder, only that user, and any administrators with access to that folder, can open the database. The LocalDB files can only be opened by one instance of LocalDB at a time.
Note
LocalDB always runs under the users security context; that is, LocalDB never runs with credentials from the local Administrator's group. This means that all database files used by a LocalDB instance must be accessible using the owning user's Windows account, without considering membership in the local Administrators group.