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21 mar 2013 · Simpler method that worked. ISNULL Nested CAST function can remove 1900-1-1 value if data is NULL. ISNULL(CAST(CAST(<<DateColumn>> AS DATE) AS Varchar),' ') [<<Date Column Name>>]
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 AUDate. from ustable us. left join autable au. on us.column=au.column. Right now this is showing: USDATE . 2014-10-24 10:29:07.450.
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.
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.
SQL Server comes with the following data types for storing a date or a date/time value in the database: DATE - format YYYY-MM-DD. DATETIME - format: YYYY-MM-DD HH:MI:SS. SMALLDATETIME - format: YYYY-MM-DD HH:MI:SS. TIMESTAMP - format: a unique number.
The date function DATEADD accepts a date part, a number to add, date, datetime, or valid date string and returns datetime result based on the units add (can be negative). Syntax: DATEADD(date part, units, date or datetime)
Here is an example that uses date functions. The following query selects all rows with a date_col value from within the last 30 days: . mysql> SELECT something FROM tbl_name-> WHERE DATE_SUB(CURDATE(),INTERVAL 30 DAY) <= date_col;. The query also selects rows with dates that lie in the future.
