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IdentitySeed Property

Cette fonctionnalité sera supprimée dans une prochaine version de Microsoft SQL Server. Évitez d'utiliser cette fonctionnalité dans de nouveaux travaux de développement, et prévoyez de modifier les applications qui utilisent actuellement cette fonctionnalité.

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

Syntaxe

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);

Notes

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