IdentitySeed Property

Diese Funktion wird in zukünftigen Versionen von Microsoft SQL Server nicht mehr bereitgestellt. Verwenden Sie diese Funktion beim Entwickeln neuer Anwendungen nicht, und planen Sie das Ändern von Anwendungen, in denen es zurzeit verwendet wird.

The IdentitySeed property exposes the initial row value for an identity column.

Syntax

object.IdentitySeed [=value]

Parts

• object
  An expression that evaluates to an object in the Applies To list

• value
  A long integer greater than or equal to 1

Data Type

Long

Modifiable

Read/write prior to Microsoft SQL Server column creation. Read-only for existing columns.

Prototype (C/C++)

HRESULT GetIdentitySeed(LPLONG pRetVal);
HRESULT SetIdentitySeed(LONG NewValue);

Hinweise

SQL Server allows the row identity property on a single column within a table. Identity, like a primary key, identifies a row uniquely. SQL Server implements row identification using a numeric value. As rows are inserted, SQL Server generates the row value for an identity column by adding an increment to the existing maximum value.

For example, the identity values for the first three rows inserted into a table containing a column defined with identity, an identity seed of 1, and an increment value of 3, are 1, 4, and 7.

Applies To:

Column Object