Configure the user options Server Configuration Option

 

Applies To: SQL Server 2016

This topic describes how to configure the user options server configuration option in SQL Server 2016 by using SQL Server Management Studio or Transact-SQL. The user options option specifies global defaults for all users. A list of default query processing options is established for the duration of a user's work session. The user options option allows you to change the default values of the SET options (if the server's default settings are not appropriate).

A user can override these defaults by using the SET statement. You can configure user options dynamically for new logins. After you change the setting of user options, new login sessions use the new setting; current login sessions are not affected.

In This Topic

Recommendations

  • The following table lists and describes the configuration values for user options. Not all configuration values are compatible with each other. For example, ANSI_NULL_DFLT_ON and ANSI_NULL_DFLT_OFF cannot be set at the same time.

    ValueConfigurationDescription
    1DISABLE_DEF_CNST_CHKControls interim or deferred constraint checking.
    2IMPLICIT_TRANSACTIONSFor dblib network library connections, controls whether a transaction is started implicitly when a statement is executed. The IMPLICIT_TRANSACTIONS setting has no effect on ODBC or OLEDB connections.
    4CURSOR_CLOSE_ON_COMMITControls behavior of cursors after a commit operation has been performed.
    8ANSI_WARNINGSControls truncation and NULL in aggregate warnings.
    16ANSI_PADDINGControls padding of fixed-length variables.
    32ANSI_NULLSControls NULL handling when using equality operators.
    64ARITHABORTTerminates a query when an overflow or divide-by-zero error occurs during query execution.
    128ARITHIGNOREReturns NULL when an overflow or divide-by-zero error occurs during a query.
    256QUOTED_IDENTIFIERDifferentiates between single and double quotation marks when evaluating an expression.
    512NOCOUNTTurns off the message returned at the end of each statement that states how many rows were affected.
    1024ANSI_NULL_DFLT_ONAlters the session's behavior to use ANSI compatibility for nullability. New columns defined without explicit nullability are defined to allow nulls.
    2048ANSI_NULL_DFLT_OFFAlters the session's behavior not to use ANSI compatibility for nullability. New columns defined without explicit nullability do not allow nulls.
    4096CONCAT_NULL_YIELDS_NULLReturns NULL when concatenating a NULL value with a string.
    8192NUMERIC_ROUNDABORTGenerates an error when a loss of precision occurs in an expression.
    16384XACT_ABORTRolls back a transaction if a Transact-SQL statement raises a run-time error.
  • The bit positions in user options are identical to those in @@OPTIONS. Each connection has its own @@OPTIONS function, which represents the configuration environment. When logging in to an instance of \ SQL Server, a user receives a default environment that assigns the current user options value to @@OPTIONS. Executing SET statements for user options affects the corresponding value in the session's @@OPTIONS function. All connections created after this setting is changed receive the new value.

Security

Permissions

Execute permissions on sp_configure with no parameters or with only the first parameter are granted to all users by default. To execute sp_configure with both parameters to change a configuration option or to run the RECONFIGURE statement, a user must be granted the ALTER SETTINGS server-level permission. The ALTER SETTINGS permission is implicitly held by the sysadmin and serveradmin fixed server roles.

To configure the user options configuration option

  1. In Object Explorer, right-click a server and select Properties.

  2. Click the Connections node.

  3. In the Default connection options box, select one or more attributes to configure the default query-processing options for all connected users.

    By default, no user options are configured.

To configure the user options configuration option

  1. Connect to the Database Engine.

  2. From the Standard bar, click New Query.

  3. Copy and paste the following example into the query window and click Execute. This example shows how to use sp_configure to configure the user options to change the setting for the ANSI_WARNINGS server option.

USE AdventureWorks2012 ;  
GO  
EXEC sp_configure 'user options', 8 ;  
GO  
RECONFIGURE ;  
GO  
  

The setting takes effect immediately without restarting the server.

RECONFIGURE (Transact-SQL)
Server Configuration Options (SQL Server)
sp_configure (Transact-SQL)
SET Statements (Transact-SQL)

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