IdentitySeed Property
Dieses Feature wird in einer zukünftigen Version von Microsoft SQL Server entfernt. Verwenden Sie dieses Feature 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.