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20 sty 2009 · SELECT * FROM Users WHERE RegistrationDate >= '1/20/2009'. it will automatically convert the string '1/20/2009' into the DateTime format for a date of 1/20/2009 00:00:00. So by using >= you should get every user whose registration date is 1/20/2009 or more recent.
Comparing dates with <,<=,>,>=,= operators works in every SQL database. You can compare a date to a string in the format of a date (as done above); you can also compare two date columns with these operators.
By following best practices—using proper data types, leveraging functions like DATEDIFF and DATEADD, and indexing date columns—you can perform efficient and accurate date comparisons in SQL Server.
To compare dates in SQL, use the usual comparison operators <, <=, >, >=, and/or =. When comparing dates, the earlier date is the “lesser” date, and the later date is the “greater” date. For example, 2021-09-15 is greater than 2021-09-14, and 2021-01-10 is less than 2022-01-10.
10 paź 2011 · One practical example of using the DATEDIFF function in SQL Server is in a WHERE clause by selecting all employees in the AdventureWorks2008R2 database whose date of hire was in March 2003.
Compare datetime values in SQL with ease! Learn to use SQL's WHERE clause to filter data based on datetime.
30 cze 2016 · START_DATE DATE. END_DATE DATE.
