In order to create a unique field in the table of a database

In order to create a unique field in the table of a database, you need to define a _____.A. triggerB. viewC. primary keyD. host keyWhich of the following statements sets the value of an insert parameter named FirstName for a data source named SqlDataSource1 to the value of the Text property of a control named txtFirstName? A. SqlDataSource1.InsertParameters[“FirstName”] = txtFirstName.Text; B. SqlDataSource1=txtFirstName.Text; C. Sql.InsertParameters[“FirstName”].DefaultValue = txtFirstName.Text; D. SqlDataSource1.InsertParameters[“FirstName”].DefaultValue = txtFirstName.Text;Which of the following objects is not needed in .NET to display data? A. Connection B. Business C. Adapter D. Dataset

 

 

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