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PostgreSQL CAST Operator- How to Convert One Data Type to Another

PostgreSQL offers a CAST operator that takes an expression and a data type and converts the given expression into the specified data type.

PostgreSQL Drop if Exists VS Drop

The DROP command throws an error if a table to be dropped doesn’t exist while “DROP IF EXISTS” shows a notice instead of throwing an error.

Understanding PostgreSQL Arrays

PostgreSQL allows us to define a table’s column as an array of any built-in data type, user-defined data type, or enumerated data type.

PostgreSQL SELECT DISTINCT Clause With Examples

In Postgres, the SELECT DISTINCT clause fetches only unique values from a result set returned by a query. It retains only one row from a set of duplicated rows.

PostgreSQL COALESCE() Function With Examples

In PostgreSQL, the COALESCE() function handles the null values more efficiently. It accepts unlimited arguments and returns the first non-null argument.

PostgreSQL DATEADD() Equivalent- How to Add Interval to Datetime

PostgreSQL doesn’t provide a DATEADD function to add an interval to date time. However, you can achieve the same functionality using the “+” and “-” operators.

PostgreSQL Letter Case Functions With Practical Examples

PostgreSQL provides various functions, such as LOWER(), INITCAP(), or UPPER(), to alter a string to lowercase, proper case, and uppercase, respectively.

PostgreSQL CURRENT_TIMESTAMP Function With Examples

PostgreSQL offers multiple date/time functions, such as CURRENT_DATE, NOW(), EXTRACT(), CURRENT_TIMESTAMP, etc. If we talk about the CURRENT_TIMESTAMP function, it retrieves the current date, time, and timezone when a transaction starts.

This write-up will present a thorough overview of the Postgres CURRENT_TIMESTAMP function with examples. So, let’s begin.

How to Use CURRENT_TIMESTAMP Function in PostgreSQL?

Firstly, let’s understand the syntax of the CURRENT_TIMESTAMP function:

CURRENT_TIMESTAMP(<precision>);

Here, “precision” is an optional …

How To Find and Delete Duplicate Rows in PostgreSQL

In PostgreSQL, we can use the "DELETE USING" statement, subquery, or Postgres immediate table to delete duplicate rows from a table.

How to Use MIN() Function in PostgreSQL

In PostgreSQL, the MIN() function retrieves a set's minimum value. Use the LEAST() function to get the minimum/least value from more than one column