Software Applications Programming Errors and solutions.

If you are getting Microsoft SQL Server Error 18456 Login Failed for User sa error to connect with system admin (SA) Login. Then you can apply below step to resolve this issue Go to SQL Server Properties - Security - Server Authentication section- check Sql Server and Windows authentication mode After that restart SQL server services then it will work fine.

To use  SQL TOP, RANK,  ROW_NUMBER ,DENSE_RANK Functions  you can see below image. Select top 5 records from table. In below query We used SQL TOP, RANK,  ROW_NUMBER ,DENSE_RANK .You can check this with your table.