PostgreSQL Tutorial

PostgreSQL Tutorial: Reset Forgotten Password For postgres User

Summary: in this tutorial, we will show you step by step how to reset the password of the postgres user in PostgreSQL.

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PostgreSQL Tutorial: CURRENT_TIMESTAMP Function

Summary: The PostgreSQL CURRENT_TIMESTAMP() function returns the current date and time with time zone, which is the time when the transaction starts.

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PostgreSQL Tutorial: DATE_PART Function

Summary: In this tutorial, we will introduce you to the PostgreSQL DATE_PART() function that allows you to retrieve subfields e.g., year, month, week from a date or time value.

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PostgreSQL Tutorial: DATE_TRUNC Function

Summary: This tutorial shows you how to use the PostgreSQL date_trunc() function to truncate a timestamp or interval to a specified level of precision.

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PostgreSQL Tutorial: FORMAT Function

Summary: PostgreSQL FORMAT() function formats arguments based on a format string.

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PostgreSQL Tutorial: NOW Function

Summary: This tutorial shows you how to use the PostgreSQL NOW() function to get the date and time with time zone.

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PostgreSQL Tutorial: PL/pgSQL SELECT INTO Statement

Summary: in this tutorial, you will learn how to use the PL/pgSQL SELECT INTO statement to select data from the database and assign it to a variable.

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PostgreSQL Tutorial: REGEXP_MATCHES Function

Summary: The PostgreSQL REGEXP_MATCHES() function matches a regular expression against a string and returns matched substrings.

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PostgreSQL Tutorial: REGEXP_REPLACE Function

Summary: In this tutorial, you will learn how to use the PostgreSQL REGEXP_REPLACE() function to replace strings that match a regular expression.

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PostgreSQL Tutorial: Delete Duplicate Rows

Summary: in this tutorial, you will learn how to use various techniques to delete duplicate rows in PostgreSQL.

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