It's also worth considering the range of date and time values that you need to store, as well as the performance implications of each data type.

On the other hand, if you need to perform time-based indexing or sorting, TIMESTAMP may be more efficient. If you need to store date and time values without timezone conversion, DATETIME may be a better choice. In conclusion, both DATETIME and TIMESTAMP data types have their own advantages and disadvantages, and the choice between them depends on the specific use case. As a result, when you insert or retrieve date and time values, TIMESTAMP requires less disk I/O and memory operations than DATETIME, which leads to faster performance. This is because TIMESTAMP values are stored as a single 4-byte integer, while DATETIME values are stored as an 8-byte value. In terms of performance, TIMESTAMP is generally faster than DATETIME. This means that if you need to store date and time values with timezone information, TIMESTAMP would be the better choice. While TIMESTAMP have a advantage of indexing which will allow to execute your queries faster than DATETIMEĭATETIME does not support timezone information, while TIMESTAMP can store timezone information. If you have a large number of date and time values to store in your database, using TIMESTAMP data type could result in significant storage space savings.ĭATETIME data types provide flexibility for storing a broader range of date and time values. This means that DATETIME requires more storage space than TIMESTAMP. However, before MySQL 5.6.4, it would reserve 8 bytes. Here is an example: SELECT DATE (datetimecolumn) AS date, TIME (datetimecolumn) AS time FROM tablename This will return a result set with two columns: date, which contains the date part of the datetimecolumn, and time, which. The DATE type is used for values with a date part but no time part. For the DATE and DATETIME range descriptions, supported means that although earlier values might work, there is no guarantee. On the other side, DATETIME data type reserves 5 bytes to store the value and addition 0 to 3 bytes for fractional seconds. You can use the DATE () and TIME () functions to extract the date and time parts of a DATETIME value in MySQL. MySQL recognizes DATE, DATETIME, and TIMESTAMP values in several formats, described in Section 9.1.3, Date and Time Literals. TIMESTAMP data type reserves 4 bytes to store the value, adding 0 to 3 bytes for fractional seconds. This limitation of TIMESTAMP is due to the fact that it stores values as the number of seconds elapsed since January 1, 1970, which is known as the Unix epoch. Let's explore the differences between DATETIME and TIMESTAMP data types in terms of performance.ĭATETIME and TIMESTAMP value can include a trailing fractional seconds part in up to microseconds, 6 digit, precision.ĭATETIME can store a wider range of values than TIMESTAMP. TIMESTAMP has a range of ' 00:00:01' UTC to ' 03:14:07' UTC (Coordinated Universal Time). TIMESTAMP data type is used to store date and time values. Here, in this article, we'll explore the differences between DATETIME and TIMESTAMP in MySQL, and help you determine which one to use based on your specific use case.ĭATETIME data type stores the date and time values in the format of 'YYYY-MM-DD HH:MM:SS' that’s range start from ' 00:00:00' to ' 23:59:59'. While they may sound similar, they have some key differences that can affect performance and functionality. SELECT DATEADD(dd, 0, DATEDIFF(dd, 0, Result */Īnother popular method is to convert the datetime to varchar with style code of 101, which will return the date part in mm/dd/yyyy format.In most database, when it comes to storing and manipulating date and time values, there are two primary data types to consider: DATETIME and TIMESTAMP. One among the common way to get date part from datetime is t use DATEADD along with DATEDIFF to remove the time part of the variable. So, we have to use some workaround to get the date part from date-time. On SQL Server 2005 and older versions, there is no date data-type. You can use the date data-type along with CONVERT or CAST to extract the date part from DateTime and DateTime2.

This data type will store only the date part (day, month and year). In SQL Server 2008, Microsoft introduced a new data-type “date”.

Mysql get date from datetime