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SqlParameter.Scale Property

Gets or sets the number of decimal places to which Value is resolved.

Namespace: System.Data.SqlClient
Assembly: System.Data (in

public byte Scale { get; set; 
/** @property */
public final byte get_Scale ()

/** @property */
public final void set_Scale (byte value)

public final function get Scale () : byte

public final function set Scale (value : byte)

Property Value

The number of decimal places to which Value is resolved. The default is 0.

The Scale property is used by parameters that have a SqlDbType of Decimal.

You do not need to specify values for the Precision and Scale properties for input parameters, as they can be inferred from the parameter value. Precision and Scale are required for output parameters and for scenarios where you need to specify complete metadata for a parameter without indicating a value, such as specifying a null value with a specific precision and scale.


Use of this property to coerce data passed to the database is not supported. To round, truncate, or otherwise coerce data before passing it to the database, use the Math class that is part of the System namespace prior to assigning a value to the parameter's Value property.


.NET Framework data providers that are included with the .NET Framework version 1.0 do not verify the Precision or Scale of Decimal parameter values. This can cause truncated data to be inserted at the data source. If you are using .NET Framework version 1.0, validate the Precision and SqlParameter of Decimal values before setting the parameter value. Scale values that exceed the Decimal parameter scale are still truncated.

The following example creates a SqlParameter and sets some of its properties.

static void CreateSqlParameterPrecisionScale()
    SqlParameter parameter = new SqlParameter("Price", SqlDbType.Decimal);
    parameter.Value = 3.1416;
    parameter.Precision = 8;
    parameter.Scale = 4;

Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.

.NET Framework

Supported in: 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0