Should I use the datetime or timestamp data type in MySQL?
Table of Contents
- 1 Should I use the datetime or timestamp data type in MySQL?
- 2 What is the difference between datetime and timestamp in MySQL?
- 3 Can I use timestamp as primary key?
- 4 What is MySQL datetime format?
- 5 What is default format for datetime data type?
- 6 What is the difference between datedatetime and timestamp in MySQL?
- 7 Does MySQL convert timestamps from UTC to current time?
Should I use the datetime or timestamp data type in MySQL?
Timestamps in MySQL are generally used to track changes to records, and are often updated every time the record is changed. If you want to store a specific value you should use a datetime field.
What is the difference between datetime and timestamp in MySQL?
The DATETIME type is used for values that contain both date and time parts. MySQL retrieves and displays DATETIME values in ‘ YYYY-MM-DD hh:mm:ss ‘ format. The TIMESTAMP data type is used for values that contain both date and time parts. TIMESTAMP has a range of ‘1970-01-01 00:00:01’ UTC to ‘2038-01-19 03:14:07’ UTC.
Is timestamp the same as datetime?
DATETIME: It is used for values that contain both date and time parts. TIMESTAMP: It is also used for values that contain both date and time parts, and includes the time zone. TIMESTAMP has a range of 1970-01-01 00:00:01 UTC to 2038-01-19 03:14:07 UTC.
What is the difference between datetime and timestamp data types in SQL Server?
Datetime is a datatype. Timestamp is a method for row versioning. In fact, in sql server 2008 this column type was renamed (i.e. timestamp is deprecated) to rowversion. It basically means that every time a row is changed, this value is increased.
Can I use timestamp as primary key?
1) If values of timestamp are unique you can make it primary key. If not, anyway create index on timestamp column as you frequently use it in “where”.
What is MySQL datetime format?
MySQL retrieves and displays DATETIME values in ‘ YYYY-MM-DD hh:mm:ss ‘ format. The supported range is ‘1000-01-01 00:00:00’ to ‘9999-12-31 23:59:59’ . The TIMESTAMP data type is used for values that contain both date and time parts.
Does MySQL date Store time?
MySQL stores DATETIME without timezone information. Let’s say you store ‘2019-01-01 20:00:00’ into a DATETIME field, when you retrieve that value you’re expected to know what timezone it belongs to.
Is the default format for DATE datatype in MySQL?
MySQL retrieves and displays DATE values in ‘ YYYY-MM-DD ‘ format. The supported range is ‘1000-01-01’ to ‘9999-12-31’ .
What is default format for datetime data type?
YYYY-MM-DD
The default format for the DATE data type is YYYY-MM-DD. YYYY represents the year, MM represents the month, and DD represents the day….Date Formats.
| Format | Description | Examples |
|---|---|---|
| YYYY-MM-DD | Default format. | INSERT INTO my_tbl VALUES (‘1957-06-13’); |
What is the difference between datedatetime and timestamp in MySQL?
DATETIME – “The DATETIME type is used for values that contain both date and time parts. MySQL retrieves and displays DATETIME values in ‘YYYY-MM-DD HH:MM:SS’ format. TIMESTAMP – “The TIMESTAMP data type is used for values that contain both date and time parts.
What is mymysql datatime format?
MySQL retrieves and displays DATETIME values in ‘YYYY-MM-DD HH:MM:SS’ format. TIMESTAMP – “The TIMESTAMP data type is used for values that contain both date and time parts.
How does mymysql handle timestamp values?
MySQL converts TIMESTAMP values from the current time zone to UTC for storage, and back from UTC to the current time zone for retrieval.
Does MySQL convert timestamps from UTC to current time?
But, if you keep reading that documentation page, you’ll eventually reach this part: “MySQL converts TIMESTAMP values from the current time zone to UTC for storage, and back from UTC to the current time zone for retrieval. (This does not occur for other types such as DATETIME.)”.