Server Properties (Connections Page)

Use this page to view or modify your connection options.

Maximum number of concurrent connections (0 = unlimited)

If set to a value other than zero, limits the number of connections that SQL Server will allow.

Caution noteCaution

Setting this to a small value, such as 1 or 2, can prevent administrators from connecting to administer the server; however, the Dedicated Admin Connection can always connect.

Default connection options

Specifies the default connection options, as described in the following table.

Configuration option


disable deferred constraint checking

Controls interim or deferred constraint checking.

implicit transactions

Controls whether a transaction is started implicitly when a statement is run.

cursor close on commit

Controls behavior of cursors after a commit operation has been performed.

ansi warnings

Controls truncation and NULL in aggregate warnings.

ansi padding

Controls padding of fixed-length variables.

ansi nulls

Controls NULL handling when using equality operators.

arithmetic abort

Terminates a query when an overflow or divide-by-zero error occurs during query execution.

arithmetic ignore

Returns NULL when an overflow or divide-by-zero error occurs during a query.

quoted identifier

Differentiates between single and double quotation marks when evaluating an expression.

no count

Turns off the message returned at the end of each statement that states how many rows were affected.

ansi null default on

Alters the session's behavior to use ANSI compatibility for nullability. New columns defined without explicit nullability are defined to allow nulls.

ansi null default off

Alters the session's behavior not to use ANSI compatibility for nullability. New columns defined without explicit nullability are defined not to allow nulls.

concat null yields null

Returns NULL when concatenating a NULL value with a string.

numeric round abort

Generates an error when a loss of precision occurs in an expression.

xact abort

Rolls back a transaction if a Transact-SQL statement raises a run-time error.

For more information on connection options, search Books Online for the specific option.

Allow remote connections to this server

Controls the execution of stored procedures from remote servers running instances of SQL Server. Selecting this check box has the same effect as setting the sp_configure remote access option to 1. Clearing it prevents execution of stored procedures from a remote server.

Remote query timeout (in seconds, 0 = no timeout)

Specifies how long (in seconds) a remote operation may take before SQL Server times out. The default is 600 seconds, or a 10-minute wait.

Require distributed transactions for server-to-server communication

Protects the actions of a server-to-server procedure through a Microsoft Distributed Transaction Coordinator (MS DTC) transaction. For more information, see remote proc trans Option.

Configured Values

Displays the configured values for the options on this pane. If you change these values, click Running Values to see whether the changes have taken effect. If they have not, the instance of SQL Server must be restarted first.

Running Values

View the currently running values for the options on this pane. These values are read-only.

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