WebOracleDataReader可以傳遞給DataTable的Load方法,然后表就可以綁定到DataGridView DataSource屬性了。 我還添加了一些使用聲明,以確保正確處理所用的一次性物品。 (特別是在異常的情況下不關閉OracleConnection是非常昂貴的) WebRead string from OracleDataReader: 32.3.19. Use OracleConnection to connect to Oracle database: 32.3.20. Rollback for Oracle database: 32.3.21. Runs the CustomerAdd stored …
64位vs2010访问oracle11g的简单介绍_Keil345软件
WebAn OracleDataReader object is, however, compatible with a ListBox control. To retrieve multiple values: In the try block of the connect_Click() method, change the SQL query to return a multiple row result set and add a while loop to enclose the read method that displays the department names. Visual C#: http://www.duoduokou.com/csharp/40868100682249708923.html builders aluminum windows
DbDataReader の Read() で Oracle は何をしているのか - Qiita
WebReturns OracleDataReader. An OracleDataReader object.. Examples. The following example creates an OracleCommand, and then executes it by passing a string that is an SQL SELECT statement, and a string to use to connect to the database. CommandBehavior is then set to CloseConnection.. public void CreateMyOracleDataReader(string … WebJul 25, 2012 · OracleDataReader FetchSize Property Applications that do not know the exact size of a row at design time can use the FetchSize property of the OracleDataReader object. This FetchSize property should be set after invoking the ExecuteDataReader method of the OracleCommand object and before the first row is fetched using the Read method … WebThe specified command executes this stored procedure when ExecuteReader is called. If parameters for the stored procedure consist of REF CURSOR objects, behavior differs depending on whether ExecuteReader () or ExecuteNonQuery () is called. If ExecuteReader () is invoked, REF CURSOR objects can be accessed through the … crossword fiend nov 9 2022