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24 sty 2013 · If you're just checking for NULL values, you might try ISNULL() and cast the date as a varchar. SELECT ISNULL(CAST(fu.SentOutDate AS VARCHAR(50)), '') AS SendOutDate FROM tablename
22 sty 2013 · Im trying to filter out the data between the date range, which also includes null values, eg: start_date = 18/01/2013 and end_date = 20/01/2013. In some data in the database the start_date is 19/01/2013 and end_date = null; I need to include this particular value as well, Here's the query I've tried so far
@DateFrom and @DateTo are input parameters that may be NULL. If they are both null, then I need to basically ignore the BETWEEN and return all records. If @DateFrom is NULL, but @DateTo is NOT NULL, then I need to return all records with DateCreated being no greater than @DateTo (inclusive).
17 maj 2024 · By understanding how to specify date ranges in the WHERE clause, you can effectively filter data based on date criteria in your SQL queries. Understand the different date data types available in SQL. Learn how to specify date ranges using comparison operators and the BETWEEN operator.
4 sty 2011 · NULL means absence of value (i.e. there is no value), while empty string means there is a string value of zero length. For example, say you have a table to store a person' data and it contains a Gender column. You can save the values as 'Male' or 'Female'.
17 lis 2015 · If you're checking whether or not the value is NULL, there is no need to convert it to a date, unless you wanted to return a date value (which you don't seem to). Instead, use: SELECT ISNULL( DOB , '') Which will return '' if the value is NULL. A NULL date is NULL (no value).
5 paź 2009 · WHERE (@startDate IS NULL OR date >= @startDate) AND (@endDate IS NULL OR date >= @endDate) or by using a COALESCE on the value of the date itself (so that the range always matches): WHERE date BETWEEN ISNULL(@startDate, date) AND ISNULL(@endDate, date)
