This property specifies the amount of memory needed by the OracleDataReader internal cache to store one row of data.

Declaration

// C#
public long RowSize {get;}

Property Value

A long that indicates the amount of memory (in bytes) that an OracleDataReader needs to store one row of data for the executed query.

Remarks

Default value = 0

The RowSize property is set to a nonzero value after the execution of a command that returns a result set. This property can be used at design time or dynamically during runtime, to set the FetchSize, based on number of rows. For example, to enable the OracleDataReader to fetch N rows for each database round-trip, the OracleDataReader FetchSize property can be set dynamically to RowSize * N. Note that for the FetchSize to take effect appropriately, it must be set after OracleCommand.ExecuteReader() but before OracleDataReader.Read().

ODP.NET now supports values up to 32K for VARCHAR2, NVARCHAR2 or RAW type columns in its calculation of RowSize value.