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21 mar 2013 · In this case you can't just set a DATETIME to an empty string. Try it: SELECT CONVERT(DATETIME, ''); One workaround is to present your date as a string: CASE WHEN CONVERT(DATE, CreatedDate) = '1900-01-01' -- to account for accidental time. THEN '' ELSE CONVERT(CHAR(10), CreatedDate, 120) + ' ' + CONVERT(CHAR(8), CreatedDate, 108) END .
24 paź 2014 · I would like to convert a datetime field to varchar so I can show a blank or a message when the date is NULL. This is what I have so far: select isnull(us.Date,0) as USDate, isnull(au.Date,0) as A...
17 lis 2015 · You can't get an empty string because you're returning the DATE value type from ISNULL. Per the docs, ISNULL. Returns the same type as check_expression. If a literal NULL is provided as check_expression, returns the datatype of the replacement_value.
19 sty 2001 · The solution is in-fact a workaround or a quick fix than a total solution, since a blank date can be either a NULL or 1900-01-01. However, converting the date into a string does relieve us from showing irrelevant data to our clients.
The SQL Server ISNULL() function lets you return an alternative value when an expression is NULL: SELECT ProductName, UnitPrice * (UnitsInStock + ISNULL(UnitsOnOrder, 0)) FROM Products;
8 mar 2019 · SQL Server has several different date and time functions and trying to remember every function is not that easy. So, I put together this tutorial that shows the different date and time functions all in one place along with examples to make finding what you are looking for much easier.
13 mar 2023 · In this tutorial you've learned some common date functions you will use with when working with dates in SQL. You learned how to get the current timestamp, get the current date, extract parts from a date, and how to add or subtract dates.
