Compare only DATE in a DATETIME field from ASP.NET code

Question

I have a table stored in SQL Server database. One of the fields of the table is of type DATETIME . I also have a ASP Calendar whose date is compared with the DATETIME filed of Database.

The problem is I don't want to compare the time. Only dates has to be compared. What is the SQL query for doing so.

This is what I used:

 SqlCommand myCommand = new SqlCommand("
SELECT AUDIT.AUDIT_DETAILS, USERS.USER_NAME, AUDIT.DATE_TIME, IP  
FROM USERS JOIN AUDIT ON (USERS.USER_ID = AUDIT.USER_ID) 
WHERE USERS.USERS_NAME LIKE '%"+TextBox1.Text+"%' AND CONVERT(VARCHAR(10),AUDIT.DATE_TIME,110) like "+Calendar1.SelectedDate.Date+"'%'", conn);

I'm getting correct output in the SQL Server explorer but when run from browser through asp.net the query result is empty

Answer 1

You can get only date from Datetime in SQL like this

CONVERT(DATE,GETDATE())

And after that you can compare to that value.

Answer 2

Try modifying your query as below

  SqlCommand myCommand = new SqlCommand("SELECT AUDIT.AUDIT_DETAILS, USERS.USER_NAME, AUDIT.DATE_TIME, IP  
  FROM USERS JOIN AUDIT ON (USERS.USER_ID = AUDIT.USER_ID) 
  WHERE USERS.USERS_NAME LIKE '%"+TextBox1.Text+"%' AND
  CONVERT(VARCHAR(10),AUDIT.DATE_TIME,106) ==    CONVERT(VARCHAR(10),CAST('"+Calendar1.SelectedDate.Date+"' as DATETIME),106)", conn);