Executing SELECT Statements and TableDirect Commands phần 1

... 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

... 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 = CommandT...

Ngày tải lên: 07/11/2013, 10:15

... 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

... and select the Local Security Policy option. Expand the MMC tree and select the User Rights Assignment option. The list of user rights will appear in the right pane of this window (Fig. 9 .19 ). ... 2003, proceed as follows: 1. Click Start, select Run, and type secpol.msc in the Open field, then click OK, or, alternately, open the Control Panel window, and select Adminis...

Ngày tải lên: 26/01/2014, 06:20

... SelectCommand Property of the SqlAdapter Object to the SqlCommand Object The SelectCommand property contains the SELECT statement you want to run. In the following example, the SelectCommand ... CommandText Property of the SqlCommand Object to the SELECT String Set the CommandText property of your SqlCommand object to the SELECT string created in step 4. The CommandText property c...

Ngày tải lên: 24/12/2013, 01:17

... stored procedure. Step 1: Create a Command Object and set its CommandText Property to an EXECUTE Statement Your first step is to create a Command object and set its CommandText property to an ... step 1: create a Command object and set its CommandText // property to an EXECUTE statement containing the stored // procedure call SqlCommand mySqlCommand = mySqlConnection.CreateCo...

Ngày tải lên: 07/11/2013, 10:15

... you need to create a DataAdapter object and set its SelectCommand, InsertCommand, UpdateCommand, and DeleteCommand properties with appropriate Command objects. This time, however, ... instead of the INSERT, UPDATE, and DELETE statements you've seen how to set in a DataAdapter object's InsertCommand, UpdateCommand, and DeleteCommand properties. The ability to call ......

Ngày tải lên: 14/12/2013, 13:15

... ); SqlCommand mySqlCommand = mySqlConnection.CreateCommand(); mySqlCommand.CommandText = " ;SELECT ProductID, ProductName " + "FROM Products;" + " ;SELECT OrderID ... myDataSet.Tables["Products"].Columns["ProductName"].MaxLength = 40; Listing 11 .1 uses the code examples shown in this section and the previous one. Notice this pro...

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

... OS X's $13 0 price, and Spaces, which is easily worth another $17 .35. They're described in detail on pages Section 5.3 and Section 5.3.2.3. There are some handy clutter and navigation ... problem. (For other ways to eject disks, see Section 11 .1. 1.3 .) • It makes disc-burning easy.When you've inserted a blank CD or DVD and loaded it up with stuff you want to c...

Ngày tải lên: 21/01/2014, 04:20