Executing SELECT Statements and TableDirect Commands phần 2

... OleDbCommand myOleDbCommand = myOleDbConnection.CreateCommand(); You then set the CommandType of myOleDbConnection to CommandType .TableDirect: myOleDbCommand.CommandType = CommandType .TableDirect; ... OleDbCommand myOleDbCommand = myOleDbConnection.CreateCommand(); // set the CommandType property of the OleDbCommand object to // TableDirect myOleDbCommand.CommandType = CommandType .TableD...

Ngày tải lên: 07/11/2013, 10:15

... Executing SELECT Statements and TableDirect Commands A TableDirect command is actually a SELECT statement that returns all the rows and columns for a specified table. A Command object ... SqlCommand object SqlCommand mySqlCommand = mySqlConnection.CreateCommand(); // set the CommandText property of the SqlCommand object to // the SELECT statement mySqlCommand.CommandText =...

Ngày tải lên: 28/10/2013, 16:15

... ); SqlCommand mySqlCommand = mySqlConnection.CreateCommand(); mySqlCommand.CommandText = " ;SELECT ProductID, ProductName " + "FROM Products;" + " ;SELECT OrderID ... is the initial value and the step is the increment added to the last number and they are both set to 1 for ProductID. The ProductID identity values are therefore 1, 2, 3, and so on....

Ngày tải lên: 24/12/2013, 01:17

... Windows XP and Windows Server 20 03 Enhancements and Compatibility Issues Windows XP and Windows Server 20 03 have gone even further than Windows 20 00 in tightening the security system, and introduced ... subsystems will improve performance and reduce potential security risks. To remove the OS /2 and POSIX subsystems, delete the \%SystemRoot%\system 32\ os2 directory an...

Ngày tải lên: 26/01/2014, 06:20

... SqlCommand object to hold the SELECT statement SqlCommand mySqlCommand = mySqlConnection.CreateCommand(); // step 5: set the CommandText property of the SqlCommand object to // the SELECT ... is named SelectIntoDataSet.cs and is located in the ch05 directory. Listing 5.1: SELECTINTODATASET.CS /* SelectIntoDataSet.cs illustrates how to perform a SELECT statement and...

Ngày tải lên: 24/12/2013, 01:17

... Command object and set its CommandText // property to an EXECUTE statement containing the stored // procedure call SqlCommand mySqlCommand = mySqlConnection.CreateCommand(); mySqlCommand.CommandText ... your EXECUTE command when setting the CommandText property in step 1. To call AddProduct2() you set the CommandText property of your Command object as follows: mySqlCommand.CommandText = &qu...

Ngày tải lên: 07/11/2013, 10:15

... stored procedure and sets the DeleteCommand property of mySqlDataAdapter to myDeleteCommand: SqlCommand myDeleteCommand = mySqlConnection.CreateCommand(); myDeleteCommand.CommandText = "EXECUTE ... SqlCommand object named myUpdateCommand that contains a call to the UpdateProduct() stored procedure and sets the UpdateCommand property of mySqlDataAdapter to myUpdateCommand: Sql...

Ngày tải lên: 14/12/2013, 13:15

... Products, Orders, and Order Details that have been populated using the following code: SqlCommand mySqlCommand = mySqlConnection.CreateCommand(); mySqlCommand.CommandText = " ;SELECT ProductID, ... program and display a message with the details. The user can then change the data they were trying to add and fix the problem. You also need to define a primary key before you can...

Ngày tải lên: 24/12/2013, 01:17

... mappings: SqlCommand mySqlCommand = mySqlConnection.CreateCommand(); mySqlCommand.CommandText = " ;SELECT ProductID, ProductName " + "FROM Products;" + " ;SELECT OrderID ... ); SqlCommand mySqlCommand = mySqlConnection.CreateCommand(); mySqlCommand.CommandText = " ;SELECT ProductID, ProductName " + "FROM Products;" + " ;SELE...

Ngày tải lên: 24/12/2013, 01:17

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Ngày tải lên: 21/01/2014, 04:20