OracleCommand.ExecuteOracleScalar Method
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Executes the query, and returns the first column of the first row in the result set returned by the query as an Oracle-specific data type. Extra columns or rows are ignored.
public:
System::Object ^ ExecuteOracleScalar();public object ExecuteOracleScalar();member this.ExecuteOracleScalar : unit -> objPublic Function ExecuteOracleScalar () As ObjectThe first column of the first row in the result set as an Oracle-specific data type, or a null reference if the result is a REF CURSOR.
Use the ExecuteOracleScalar method to retrieve a single value (for example, an aggregate value) from a database. This requires less code than using the ExecuteReader method, and then performing the operations necessary to generate the single value from the data returned by an OracleDataReader.
A typical ExecuteOracleScalar query can be formatted as in the following C# example:
command.CommandText = "SELECT COUNT(*) AS NumberOfRegions FROM Region";
count = command.ExecuteOracleScalar();
| Produkt | Versioner |
|---|---|
| .NET Framework | 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
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