public interface RowId
Methods in the interfaces
PreparedStatement, such as
allow a programmer to access a SQL
ROWID value. The
interface provides a method
for representing the value of the
ROWID as a byte array or as a
getRowIdLifetime in the interface
can be used
to determine if a
RowId object remains valid for the duration of the transaction in
RowId was created, the duration of the session in which
RowId was created,
or, effectively, for as long as its identified row is not deleted. In addition
to specifying the duration of its valid lifetime outside its originating data
getRowIdLifetime specifies the duration of a
value's valid lifetime
within its originating data source. In this, it differs from a large object,
because there is no limit on the valid lifetime of a large object within its
originating data source.
All methods on the
RowId interface must be fully implemented if the
JDBC driver supports the data type.
|Modifier and Type||Method and Description|
Returns an array of bytes representing the value of the SQL
Returns a hash code value of this
Returns a String representing the value of the SQL ROWID designated by this
boolean equals(Object obj)
RowIdto the specified object. The result is
trueif and only if the argument is not null and is a RowId object that represents the same ROWID as this object.
It is important
to consider both the origin and the valid lifetime of a
when comparing it to another
RowId. If both are valid, and
both are from the same table on the same data source, then if they are equal
the same row; if one or more is no longer guaranteed to be valid, or if
they originate from different data sources, or different tables on the
same data source, they may be equal but still
not identify the same row.
ROWIDdesignated by this
returns the contents of its DATE as the
rather than as DATE literal in SQL (which would have been the
DATE "2004-03-17"), toString()
returns the contents of its ROWID in a form specific to the driver supplying
the connection, and possibly not as a
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