![]() If the culture argument is not provided, the language of the current session is used. Optional nvarchar argument specifying a culture. A good starting point is the topic, " Formatting Types." NET Framework documentation on string formatting in general, custom date and time formats, and custom number formats. For a full explanation of these formatting patterns, consult the. NET Framework format string, either as a standard format string (for example, "C" or "D"), or as a pattern of custom characters for dates and numeric values (for example, "MMMM DD, yyyy (dddd)"). The format argument must contain a valid. For a list of valid types, see the table in the following Remarks section. ArgumentsĮxpression of a supported data type to format. Thanks for your excellent tip.To view Transact-SQL syntax for SQL Server 2014 (12.x) and earlier versions, see Previous versions documentation. And, please, don't do like the rest of the people have about this and say that "performance sometimes doesn't matter" because it always matters and don't try to justify it to support "migratable" code because easily easily migratable code is a myth. The warning should be that it's a serious performance performance and it should never be used in T-SQL until they fix it. Good article but FORMAT has been out for quite a while and so have the tests that prove that it's usually about 43 times slower than even some of the strange combinations of multiple CONVERTs. Good thing there are usually multiple ways to do things in SQL Server. Hi Jeff, thanks for your input on performance with the FORMAT statement. Wednesday, Novem1:54:12 PM - Greg Robidoux Great solution for converting date to an integer " CONVERT(CHAR(8),112) as 'MyDate' " and this solution is efficient than converting date this way " FORMAT(, 'yyyyMMdd') as 'MyDate' " Wednesday, Janu4:56:06 PM - Zingisa Matwana ![]() In other words, DATETIME is not standard.Īlso, a tiny observation: if you ever create, say, a computed column that will use CAST for date-time conversion, when you script out the table, you will notice that the script will be created using CONVERT, not CAST.Īs a final note: 'YYYMMDD' and 'YYMMDD' are ISO standard, so they should be used for data retrieval. : Use the time, date, datetime2 and datetimeoffset data types for new work. How SQL Server handles the date format YYYY-MM-DD SQL Date Format examples using SQL FORMAT Function SQL Server Date and Time Functions with Examples
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