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Dates and Times in SQL Server: AT TIME ZONE

Continuing the series on dates and times in SQL Server and Azure SQL Database, this week we look at the hint AT TIME ZONE. In Azure SQL Database, the regional settings of the database are set to UTC by default. It is also advisable to store dates and times in UTC format on our on-premises[…]

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Update your production servers and stop making excuses about it

Folks, we all like to make sure we’re doing our level best to make things work smoothly. So why am I staring at someone’s server that has never been updated since it was first set up almost three years ago? Do better, so that I don’t have to yell at you. Seriously. When we ignore[…]

Dates and Times in SQL Server: DATENAME()

Last time we looked at DATEPART(). This post is all about the DATENAME() function. So many similarities There are many similarities between DATEPART and DATENAME. Where DATEPART returns the date or time part as an integer, DATENAME returns the part as a character string. This DATENAME function also takes two parameters: the date or time[…]

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Dates and Times in SQL Server: DATEPART()

In my previous posts in this series we’ve seen reference to Transact-SQL (T-SQL) functions that are used to get the specific part of a date and/or time (year, month, day, hour, minute, second, etc.). This week we’ll go through one of them and see how it works. Introducing DATEPART, a built-in function that takes two[…]

Dates and Times in SQL Server: the problem with DATETIME

Recently I wrote a post about date and time functions you should never use, which contained an opinion I’ve expressed previously that some people have disagreed with, namely that DATETIME is a terrible data type which you should not be using in new development. The motivation for this position is that a better data type exists. As[…]

Dates and Times in SQL Server: more functions you should never use

Previously we looked at four built-in functions to get the current date and time in SQL Server and Azure SQL Database using Transact-SQL (T-SQL). We identified that out of the options provided, SYSUTCDATETIME() is the recommended method because it relies on Coordinated Universal Time (UTC), and uses the DATETIME2 data type which has a much higher[…]

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Dates and Times in SQL Server: What about TIMESTAMP?

It occurred to me that we haven’t covered the TIMESTAMP data type in this series about dates and times. TIMESTAMP is the Windows Millennium Edition of data types. It has nothing to do with date and time. It’s a row version. Microsoft asks that we stop calling it TIMESTAMP and use ROWVERSION instead. Much like DECIMAL[…]

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Dates and Times in SQL Server: T-SQL functions to get the current date and time

We have come on quite a journey so far. SQL Server and Azure SQL Database provide date and time data types to help you design the best possible database. You can read more about that here: Dates and Times in SQL Server: DATETIME Dates and Times in SQL Server: SMALLDATETIME Dates and Times in SQL[…]

Dates and Times in SQL Server: DATETIMEOFFSET

This post continues our look at date and time data types in SQL Server. SQL Server 2008 introduced new data types to handle dates and times in a more intelligent way than the DATETIME and SMALLDATETIME types that we looked at previously. This week, we look at the last new data type, DATETIMEOFFSET. If you’d like[…]

Dates and Times in SQL Server: DATETIME2

This post continues our look at date and time data types in SQL Server. SQL Server 2008 introduced new data types to handle dates and times in a more intelligent way than the DATETIME and SMALLDATETIME types that we looked at previously. This week, we look at the DATETIME2 data type. I’m not the first person[…]