// Dynamic link library path
$ Oracle installation path $/bin/oracle. dataaccess. dll
// Namespace reference
Using Oracle. dataaccess. client;
// Rough description of the Encoding Process
Int rowscount = 10; // it is assumed that 10 records need to be deleted.
Oracle. dataaccess. Client. oracleconnection connection = new Oracle. dataaccess. Client. oracleconnection ("connection string here ");
Connection. open ();
Oracle. dataaccess. Client. oracletransaction trans = connection. begintransaction ();
Oracle. dataaccess. Client. oraclecommand cmd = new Oracle. dataaccess. Client. oraclecommand ("delete from sample where id =: v_id ");
Oracle. dataaccess. Client. oracleparameter [] parameters = new Oracle. dataaccess. Client. oracleparameter [1];
// Initialization and type declaration operations on parameters [0] are omitted here
Cmd. Connection = connection;
Cmd. arraybindcount = rowscount;
For (INT I = 0; I <parameters. length; I ++)
{
Parms [I]. value = new object [] {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}; // you can assign values to all parameters in batches.
}
Foreach (Oracle. dataaccess. Client. oracleparameter Param in parameters)
{
Cmd. Parameters. Add (PARAM );
}
Cmd. executenonquery ();
Trans. Commit ();
Connection. Close ();
// Performance optimization description
This method uses the batch value assignment mode of the same parameter to make full use of the efficient parameter cache mechanism provided by the database product, thus reducing the statement parsing time (using system. data. in oracleclient mode, the query statement with the same parameters needs to be re-parsed during each execution.) In this mode, the execution efficiency and performance are improved when a large volume of data is updated.
