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What data type is often used for storing MD5 hash keys?
In what timezone are the timestamps always stored?
Which data type is often unbound in size?
Data types are often generic and unbound in size
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JSONB is preferred over JSON for semi-structured data types
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Timestamps are stored in local time zone
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Match the following data types with their characteristics:
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Match the following data type characteristics with their descriptions:
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Match the following data type characteristics with their usage:
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What does a UTC timestamp in PostgreSQL represent?
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How is the UTC timestamp data type represented in PostgreSQL?
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What does the to_timestamp() function do in PostgreSQL?
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What is the primary advantage of using UTC timestamps in PostgreSQL?
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What does the extract() function do in PostgreSQL with respect to a UTC timestamp?
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What is the purpose of the current_timestamp() function in PostgreSQL?
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UTC timestamps in PostgreSQL are represented using a 4-byte integer that stores the number of seconds since the Unix epoch.
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The to_timestamp() function in PostgreSQL converts a string representation of a date or time to a UTC timestamp.
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Using UTC timestamps in PostgreSQL allows for precise and consistent storage of timestamps across different systems and environments.
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The current_timestamp() function in PostgreSQL returns the current UTC timestamp.
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PostgreSQL provides various functions and operators for working with UTC timestamps, including timestamp_tz() to convert a UTC timestamp to a timestamp with time zone.
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UTC timestamps in PostgreSQL do not provide standardized representation of dates and times, ensuring consistency across different time zones and regions.
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Extract() function in PostgreSQL can be used to extract specific components of a UTC timestamp, such as year, month, day, hour, minute, and second.
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UTC timestamps in PostgreSQL are often stored in the local time zone.
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The primary advantage of using UTC timestamps in PostgreSQL is the standardized time representation and consistency across different time zones and regions.
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UTC timestamp data type in PostgreSQL is represented using an 8-byte integer that stores the number of seconds since the Unix epoch.
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Data types in PostgreSQL are often generic and unbound in size.
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UTC timestamps in PostgreSQL store timestamps with low precision, disallowing precise calculations and comparisons.
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Match the following functions/operators with their usage in PostgreSQL for working with UTC timestamps:
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Match the following advantages with using UTC timestamps in PostgreSQL:
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Match the following data type characteristics with their descriptions:
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