INTERVAL: Represents a span of time (quantified in terms of days, hours, minutes, etc. The PostgreSQL formatting functions provide a powerful set of tools for converting various data types (date/time, integer, floating point, numeric) to formatted strings and for converting from formatted strings to specific data types. TIMESTAMP: Stores the date and time (YYYY-MM-DD HH:MI:SS).We used different TIMESTAMP functions, for example, NOW (), CURRENTTIMESTAMP, CURRENTTIME, TIMEOFDAY (), and timezone (zone, timestamp) to enhance and handle the TIME and DATE value from the particular table. TIME: Stores the time of day only (HH:MI:SS) The PostgreSQL Timestamp data type is used to store the time and date values for a specified column. DATE: Stores the date only (YYYY-MM-DD).The unit type of the interval such as day, month, minute, hour. There are primarily four types that we should be aware of: T date, timestamp, time, or interval value from which the date part is to be extracted. Introduction to Date and Time Functions in PostgreSQL Understanding PostgreSQL Date and Time Typesīefore diving into the functions, let's briefly understand the date and time types that PostgreSQL provides. By the end, you should be able to understand and apply these functions to manipulate and analyze time-series data efficiently. This blog post aims to provide an introductory yet comprehensive guide on how to use these date and time functions in PostgreSQL. These functions are particularly handy when we're dealing with data that requires time stamp manipulation, scheduling events, or analyzing data over time. The CURRENTTIMESTAMP Function returns the output as the current date, time, and time zone offset using the machine’s date, time, and time zone on which PostgreSQL is running. PostgreSQL, an open-source object-relational database system, provides a plethora of functionalities, including powerful date and time functions that are useful in many real-world situations. The PostgreSQL tochar() function converts timestamp values, interval values, or numeric values to strings according to the specified format and return the result.
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