What is difference between datetime and Smalldatetime SQL Server?
What is difference between datetime and Smalldatetime SQL Server?
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. The Microsoft advices users not to use DateTime & SmallDateTime Data Types….DateTime Vs SmallDateTime.
| DateTime | SmallDateTime | |
|---|---|---|
| Syntax | datetime | smalldatetime |
How do I declare Smalldatetime in SQL?
DECLARE @thedate date SET @thedate = ‘2080-12-01’ SELECT @thedate AS ‘date’, CAST(@thedate AS smalldatetime) AS ‘smalldatetime’; Result: The conversion of a date data type to a smalldatetime data type resulted in an out-of-range value.
What is Smalldatetime data type?
SMALLDATETIME is a domain, implemented as TIMESTAMP, used to store date and time of day information. SMALLDATETIME is a Transact-SQL type.
What is the maximum data value that can be stored in a Smalldatetime data type?
SMALLDATETIME VS DATETIME
| SMALLDATETIME | |
|---|---|
| Maximum Value | 2079-12-31 23:59:00 |
| Data Storage Type | Used to store the date time data without fractional seconds precision. |
| Storage | Storage size is fixed 4 bytes. |
| Use When? | When fractional seconds precision is not needed and date value does not exceed 2079-12-31 23:59:00. |
How do I format a date in SQL Server?
How to format SQL Server dates with FORMAT function. Use the FORMAT function to format the date and time. To get DD/MM/YYYY use SELECT FORMAT (getdate(), ‘dd/MM/yyyy ‘) as date. To get MM-DD-YY use SELECT FORMAT (getdate(), ‘MM-dd-yy’) as date.
What is sysname data type in SQL Server?
SYSNAME is a built-in data type limited to 128 Unicode characters , which is primarily used to store object names in SQL Server. It is basically the same as using nvarchar (128) NOT NULL. Although it is SQL Server data type we cannot use this data type to create a column with it. This data type is not listed in the data-type list which comes when creating tables via table designer.
How does SQL Server store data?
SQL Server data is stored in data files that, by default, have an .MDF extension. The log (.LDF) files are sequential files used by SQL Server to log transactions executed against the SQL Server instance (more on instances in a moment).
What type of server is SQL?
The SQL Server is a relational database management system from Microsoft. The system is designed and built is to manage and store information. The system supports various business intelligence operations, analytics operations, and transaction processing. The information stored on the server is stored in the relational database.