dates

ADDDATE() Examples – MySQL

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In MySQL, you can use the ADDDATE() function to add a specified amount of time to a date. For example, you could use it to add 10 days to a given date. You can specify whether to add days, weeks, months, quarters, years, etc. You can also add a time value, such as seconds, microseconds, etc.

The ADDDATE() function is a synonym for the DATE_ADD() function (they both do the same thing) when using the first syntax listed below.

This article contains examples to demonstrate usage of the ADDDATE() function.

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@@DATEFIRST – Get the First Day of the Week in SQL Server

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In SQL Server, the first day of the week is determined by the current language settings. You can also override that with the SET DATEFIRST statement, which allows you to explicitly set the first day of the week.

In either case, you can use the @@DATEFIRST function to find out what settings your session is using for the first day of the week. This article demonstrates how.

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SET DATEFIRST – Set the First Day of the Week in SQL Server

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In SQL Server, you can use SET DATEFIRST to set the first day of the week.

The first day of the week can be different, depending on the language being used. For example the default for us_English is 7 (Sunday), whereas the default for Deutsch (German) is 1 (Monday).

This article demonstrates how to change the first day of the week without changing the language.

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SYSUTCDATETIME() Examples in SQL Server (T-SQL)

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In SQL Server, the T-SQL SYSUTCDATETIME() function is used to return the current UTC time (Coordinated Universal Time). UTC time is the primary time standard by which the world regulates clocks and time.

The return value of the SYSUTCDATETIME() function is derived from the computer on which the instance of SQL Server is running. The time zone is not included, and it is returned as a datetime2 value. The fractional second precision specification has a range from 1 to 7 digits. The default precision is 7 digits.

SYSUTCDATETIME() does the same thing that GETUTCDATE() does, except that it returns a higher fractional precision. As mentioned,  SYSUTCDATETIME() returns a datetime2 value, whereas the GETUTCDATE() function returns a datetime value.

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GETUTCDATE() Examples in SQL Server (T-SQL)

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When using SQL Server, you can use the T-SQL GETUTCDATE() function to return the current UTC time (Coordinated Universal Time). UTC time is the primary time standard by which the world regulates clocks and time.

The return value of the GETUTCDATE() function is derived from the computer on which the instance of SQL Server is running. The time zone is not included, and it is returned as a datetime value.

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