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Next, we can even change the current timezone to a different timezone using the SET timezone statement. This becomes very helpful when you have operations all over the world. current date and time implicitly converted into the default timezone.įurther, we can also check the timezone we are currently working in by using the SHOW timezone statement below. It will return the current timestamp, i.e. Suppose if we want to know the current timestamp, we can use the current_timestamp function as shown below. First, let’s start by converting or casting a given date into a timestamp format, as shown below. Some examples to show functions related to timestamp data type in SQL. SQL query to illustrate the difference between timestamp and timestamptz data types. SELECT typname, typlen, typtype, typcategory Getting to know important details of timestamp and timestamptz data type in SQL. Note: For the purpose of this article, we have used the PostgreSQL server.
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In this article, we will be learning the functions and differences of “timestamp” and “timestamptz” data types with the help of a few examples.
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Timestamptz data type also has a storage size similar to a timestamp of 8 bytes that can accept date and time values ranging from 4713 BC and 294276 AD and provides a resolution of 1 microsecond or 14 digits. For example, in PostgreSQL, we have a “timestamptz” data type that takes care of time zone changes as well. Some SQL databases allow for customization of a timestamp data type where we can specify a timezone for the timestamp so that every time the database is used in a different timezone, it shows and accepts the corresponding date and time. The timestamp has a storage size of 8 bytes that can accept date and time values ranging from 4713 BC and 294276 AD and provides a resolution of 1 microsecond or 14 digits. Timestamp is a data type and function in Standard Structured Query Language (SQL) that lets us store and work with both date and time data values, usually without specified time zones.