Examine the code given below:

SELECT employee_id FROM employees WHERE commission_pct=.5 OR salary > 23000

Which of the following statements is correct with regard to this code?

Which of the following are aggregate functions in SQL?

What is the correct SQL syntax for selecting all the columns where the 'LastName' is alphabetically between (and including) 'Hansen' and 'Pettersen'?

It is time for the annual sales awards at your company. The awards include certificates awarded for the five sales of the highest sale amounts. You need to produce a list of the five highest revenue transactions from the Orders table in the Sales database. The Orders table is defined as follows:

Which of the following has the highest order of precedence in SQL Server?

Which of the following constraints can be used to enforce the uniqueness of rows in a table?

You are debugging a Visual Basic.NET application. You add a variable to the watch window. When Visual Basic enters break mode, the Value of the expression variable is ''''. What is the most likely cause of the problem?

You need to install an online parcel tracking application and its supporting assemblies so that the application and its assemblies can be uninstalled using the Add/Remove Programs Control Panel applet. What should you do?

In SQL Server, you should avoid the use of cursors because:

What is the total no. of events in Global.asax file in Asp.NET?

You are creating an ASP.NET page for Premium Consultants. You create a GridView control that displays past purchases made by the user. The GridView control is populated from an existing database when the page is created. The page contains TextBox controls that allow users to update their personal information, such as address and telephone number. You need to ensure that the page is refreshed as quickly as possible when users update their contact information. What should you do?