Specifies the syntax the SNC database interface uses to obtain the identity value of a new row in a database table.When a DataWindow update request inserts a new row into a Microsoft SQL Server table that contains an IDENTITY column, the DataWindow engine calls the SNC interface to obtain the identity value of the newly inserted row. The Identity database parameter allows you to define how this request is implemented.
SNC SQL Native Client for Microsoft SQL Server
Identity=value
Parameter |
Description |
|---|---|
value |
A value specifying the syntax for obtaining the identity value of a newly inserted row. Values are:
|
Identity=“@@IDENTITY”
By default, the SNC interface
issues SELECT @@identity to
obtain the IDENTITY column value of the newly inserted row. It returns
the last IDENTITY value produced on a connection, regardless of
the table that produced the value, and regardless of the scope of
the statement that produced the value.
SELECT IDENT_CURRENT('tablename') returns
the last IDENTITY value produced in a table, regardless of the connection
that created the value, and regardless of the scope of the statement
that produced the value.
SELECT SCOPE_IDENTITY() returns
the last IDENTITY value produced on a table and by a statement in
the same scope, regardless of the table that produced the value.
Because Identity is a dynamic database parameter, it can be set and reset at any time during an application.
To specify the syntax for obtaining the identity value of a newly inserted row:
Database profile Select SCOPE_IDENTITY() from the DataWindow Identity Value drop-down list on the Syntax page in the Database Profile Setup dialog box.
Application Type the following in code:
SQLCA.DBParm="Identity='SCOPE_IDENTITY()'"
