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using System.Collections.Generic;
using System.Data.SqlClient;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace ConsoleApp3
{
internal class example1
{
SqlConnection conn;
public example1() //constructor
{
conn = new SqlConnection("Data source=(localdb)\MSSQLLocalDB;Initial Catalog=University;Integrated Security=SSPI");
}
static void Main()
{
example1 scd = new example1();
int sal1 = scd.GetMin();
Console.WriteLine();
Console.WriteLine("Min salary : {0}", sal1);
int sal2 = scd.GetMax();
Console.WriteLine();
Console.WriteLine("Max salary : {0}", sal2);
int sal3 = scd.GetAvg();
Console.WriteLine();
Console.WriteLine("Max salary : {0}", sal3);
}
public int GetMin()
{
int count = -1;
try
{
conn.Open();
SqlCommand cmd = new SqlCommand("select MIN(Salary) from empolyee4", conn);
count = (int)cmd.ExecuteScalar();
}
finally
{
if (conn != null)
{
conn.Close();
}
}
return count;
}
public int GetMax()
{
int count = -1;
try
{
conn.Open();
SqlCommand cmd = new SqlCommand("select MAX(Salary) from empolyee4", conn);
count = (int)cmd.ExecuteScalar();
}
finally
{
if (conn != null)
{
conn.Close();
}
}
return count;
}
public int GetAvg()
{
int count = -1;
try
{
conn.Open();
SqlCommand cmd = new SqlCommand("select AVG(Salary) from empolyee4", conn);
count = (int)cmd.ExecuteScalar();
}
finally
{
if (conn != null)
{
conn.Close();
}
}
return count;
}
}
}
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