What is the difference between Smalldatetime and datetime?
What is the difference between Smalldatetime and datetime?
The DateTime & SmallDateTime in SQL Server are the data types that store both date & time together. The time is based on the 24 hours clock….DateTime Vs SmallDateTime.
| DateTime | SmallDateTime | |
|---|---|---|
| Accuracy | Rounded to increments of .000, .003, or .007 seconds | One minute |
| Default value | 1900-01-01 00:00:00 | 1900-01-01 00:00:00 |
What is Smalldatetime in Sybase?
SMALLDATETIME is a domain, implemented as TIMESTAMP, used to store date and time of day information. SMALLDATETIME is a Transact-SQL type.
What is Smalldatetime data type?
SQL DateTime. The SMALLDATETIME data type specifies a date and time of day in SQL Server. SMALLDATETIME supports dates from 1900-01-01 through 2079-06-06. The default value is 1900-01-01 00:00:00.
What is the difference between datetime and DATETIME2?
DATETIME2 has a date range of “0001 / 01 / 01” through “9999 / 12 / 31” while the DATETIME type only supports year 1753-9999. Also, if you need to, DATETIME2 can be more precise in terms of time; DATETIME is limited to 3 1/3 milliseconds, while DATETIME2 can be accurate down to 100ns. Both types map to System.
Does Smalldatetime have seconds?
The time is based on a 24-hour day, with seconds always zero (:00) and without fractional seconds. Use the time, date, datetime2 and datetimeoffset data types for new work.
How do I use Smalldatetime?
smalldatetime – format is YYYY-MM-DD hh:mm:ss; stores values from 1900-01-01 to 2079-06-06; with the accuracy of 1 minute; uses 4 bytes. datetime2 –format is YYYY-MM-DD hh:mm:ss[.
Should I use datetime2 or DateTimeOffset?
If you are storing only UTC values (where the offset is always zero), you can save storage space with datetime2 . datetimeoffset requires 10 bytes of storage whereas datetime needs 8 bytes for precision 5 or greater, 7 bytes for precision 3-4, and 6 bytes for precision 2 or less.
What is a datetime2 data type?
The DateTime2 is an SQL Server data type, that stores both date & time together. The time is based on the 24 hours clock. The DateTime2 stores the fractional seconds Up to 7 decimal places (1⁄10000000 of a second). The Precision is optional and you can specify it while defining the DateTime2 column.
What is the range of a Smalldatetime?
datetime vs smalldatetime in SQL Server: What’s the Difference?
| Feature | smalldatetime |
|---|---|
| SQL Compliant (ANSI & ISO 8601) | No |
| Date Range | 1900-01-01 through 2079-06-06 |
| Time Range | 00:00:00 through 23:59:59 |
| Character Length | 19 positions maximum |
What is the maximum date value that can be stored in Smalldatetime?
Difference between SMALLDATETIME and DATETIME Data Types in Sql Server
| SMALLDATETIME | DATETIME | |
|---|---|---|
| MIN Value | 1900-01-01 00:00:00 | 1753-01-01 00:00:00 |
| MAX Value | 2079-06-06 23:59:00 | 9999-12-31 23:59:59.997 |
| Storage Size | 4 bytes | 8 bytes |
| Usage |
Should you always use DateTimeOffset?
DateTime values lack any knowledge of time zone, or lack thereof. If you need to know when things actually occurred, with more precision than just the approximate date, and you can’t be 100% sure that your dates are ALWAYS stored in UTC, then you should consider using DateTimeOffset to represent your datetime values.
Does DateTime2 have timezone?
For example, datetime2 values always require 8 bytes in memory when batch mode is used….datetime2 description.
| Property | Value |
|---|---|
| Date range | 0001-01-01 through 9999-12-31 January 1,1 CE through December 31, 9999 CE |
| Time range | 00:00:00 through 23:59:59.9999999 |
| Time zone offset range | None |
Should I use DateTime2 or DateTimeOffset?
What is the difference between Datetime2 and datetime in SQL Server?
Datetime2 was introduced with SQL Server 2008, so it is here long enough to draw some comparisons with its “older brother”. The main difference is the way of data storage: while in Datetime type, the date comes first and then time, in Datetime2, 3 bytes, in the end, represents date part!
Is DateTimeOffset better than DateTime?
DateTime is capable of storing only two distinct times, the local time and UTC. The Kind property indicates which. DateTimeOffset expands on this by being able to store local times from anywhere in the world. It also stores the offset between that local time and UTC.
What is the difference between DateTimeOffset and DateTime?
With its Kind property, DateTime is able to reflect only Coordinated Universal Time (UTC) and the system’s local time zone. DateTimeOffset reflects a time’s offset from UTC, but it does not reflect the actual time zone to which that offset belongs.
What is the difference between DateTime and DateTimeOffset?
What is a DateTime2 data type?
What is DateTime and DateTimeOffset?
Should I use smalldatetime or datetime2?
All the people says to use the new and powerful datetime2 type but smalldatetime is still more convenient in terms of memory (6 bytes vs 4 bytes) for the Date column, I need precision up to minute. In this table I will store up to 1 million records every day so big big data.
What are the features of smalldatetime?
One important feature of smalldatetime is that it rounds to the nearest minutes instead of truncating the seconds. Depending on how the data is inserted into the table and if this behavior is desired or not, you may need additional preproccessing of this value prior to inserting it into the table.
What is the storage size of smalldatetime?
This is one of the few benefits smalldatetime has over datetime, which has a fixed storage size of 8 bytes. We can check the storage size using the DATALENGTH () function to return the number of bytes used for each of our values:
Why is smalldatetime always 24 hours?
This is to be expected, because Microsoft’s official documentation states that smalldatetime ‘s time is …based on a 24-hour day, with seconds always zero (:00) and without fractional seconds. So we can see that the datetime type provides a more precise and accurate date/time value.
