This document discusses implementing transactions in web applications and provides code to insert data into a database table with transaction handling. Transactions ensure data integrity by allowing data to be committed only if all statements execute successfully or rolled back if any statement fails. The code provided adds data to a database table and is missing the statements to insert the data and commit the transaction. Validation controls like RequiredFieldValidator and RegularExpressionValidator help ensure secure data entry and should be used to authenticate and authorize users.

1. Need these two done within 2 hours.
Question 3515
pts
(TCO 5, 6, 9) Discuss the importance of implementing
transactions in web applications. Describe the COMMIT, and
ROLLBACK command. In the following SaveEmployee
function below, add code to insert the first name, last name, and
pay rate into the tblEmployee table. In the database the column
names are: FirstName, LastName, PayRate. Also, write the code
to commit the transaction.
public static bool SaveEmployee(string Database, string
FirstName, string LastName, string PayRate)
{
bool recordSaved;
try
{
OleDbTransaction myTransaction = null;
OleDbConnection conn = new
OleDbConnection("PROVIDER=Microsoft.ACE.OLEDB.12.0;"
+"Data Source=" +Database);
conn.Open();
OleDbCommand command = conn.CreateCommand();

2. string strSQL;
myTransaction = conn.BeginTransaction();
command.Transaction = myTransaction;
// Write the code below to insert the first name, last name, and
pay rate into the tblEmployee table
_____________________________________________________
// Add your comments here
command.CommandType = CommandType.Text;
command.CommandText = strSQL;
// Add your comments here
command.ExecuteNonQuery();
// Write the code below to commit the transaction
_____________________________________________________
__
// Add your comments here
conn.Close();

3. recordSaved = true;
}
catch (Exception ex)
{
myTransaction.Rollback();
recordSaved = false;
}
return recordSaved;
}
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Question 3615
pts
(TCO 8, 9) Explain Secure Sockets Layer, authentication, and
authorization. Discuss advantages of using validation controls
and discuss the RequiredFieldValidator and the

5. RegularExpressionValidator in particular.
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