Tài liệu Creating a UniqueConstraint Object ppt

... UniqueConstraint( DataColumn myDataColumn) UniqueConstraint( DataColumn[] myDataColumns) UniqueConstraint( DataColumn myDataColumn, bool isPrimaryKey) UniqueConstraint( DataColumn[] myDataColumns, bool isPrimaryKey) ... UniqueConstraint( string constraintName, DataColumn myDataColumn) UniqueConstraint( string constraintName, DataColumn[] myDataColumns) UniqueConstraint( string constrai...

Ngày tải lên: 26/01/2014, 07:20

... Creating a SqlCommand Object There are two ways you can create a SqlCommand object: • Use one of the SqlCommand constructors. • Call the CreateCommand() method of a SqlConnection object. ... SqlConnection object. mySqlTransaction is your SqlTransaction object. Before you use a SqlCommand object you first need a SqlConnection object, which is used to communicate with...

Ngày tải lên: 21/01/2014, 07:20

... Creating a Command Object Using Visual Studio .NET To create a SqlCommand object using Visual Studio .NET (VS .NET), you drag a SqlCommand object from the Data tab of the Toolbox ... project named MyDataReader containing a Windows application. 2. Add a SqlConnection object to your project (refer back to the previous chapter to see how to add a SqlConnection object...

Ngày tải lên: 21/01/2014, 07:20

... You'll recall that a SqlConnection object allows you to connect to a SQL Server database. You can also drag an OleDbConnection object from the Toolbox to your form to connect to a database ... Creating a Connection Object Using Visual Studio .NET To create a SqlConnection object using Visual Studio .NET, you drag a SqlConnection object from the Data tab of the T...

Ngày tải lên: 21/01/2014, 07:20

... the Data Adapter Configuration Wizard. Figure 10.12: Final dialog box for the Data Adapter Configuration Wizard Click the Finish button to complete the Wizard. A SqlDataAdapter object named ... form. When you drag a SqlDataAdapter object to your form, you start the Data Adapter Configuration Wizard, as shown in Figure 10.8 . Figure 10.8: The Data Adapter Configuration Wizard...

Ngày tải lên: 21/01/2014, 07:20

... sqlDataAdapter1.Fill(dataSet11, "Products"); sqlConnection1.Close(); System.Data.DataTable myDataTable = dataSet11.Tables["Products"]; foreach (System.Data.DataRow myDataRow in myDataTable.Rows) ... form, and add code to your form to fill it using the Fill() method of a DataAdapter object. • Click the Generate Dataset link at the bottom of the Properties windo...

Ngày tải lên: 21/01/2014, 07:20

... ForeignKeyConstraint. • parentDataTableName is the name of the parent DataTable. • parentDataColumnNames and childDataColumnNames contain the names of the DataColumn objects in the parent and child DataTable ... in the parent DataTable. • childDataColumn and childDataColumns are the DataColumn objects in the child DataTable. • constraintName is the name you want to assign to the Constr...

Ngày tải lên: 21/01/2014, 07:20

Ngày tải lên: 21/01/2014, 07:20

... contains the basketball graphic, which is a movie clip instance appropriately named basketball_mc. We'll be looking at this instance's timeline in a moment because it plays a part ... three layers: Shadow, Graphic, and Sound. The Shadow and Graphic layers contain a couple of tweens to emulate the look and movement of a bouncing basketball. The Sound layer simply contai...

Ngày tải lên: 21/01/2014, 13:20

... normal security • Query GUARD_STATUS column in V$DATABASE. • Database guard level is set to ALL by broker automatically on the logical standby database. • Database guard level applies to all ... DATABASE GUARD command keywords: – ALL: prevents users from making changes to any data in the database. – STANDBY: prevents users from making changes to any data maintained by Data Guard SQL Apply....

Ngày tải lên: 09/12/2013, 16:15