Experts in Postgres and Open Source Infrastructure

A trigger can be altered in PostgreSQL by using the ALTER TRIGGER command. We can rename the trigger and then verify if the change in name has occurred or not.

The date_bin() function is used to truncate a specified timestamp into another timestamp using an interval based on the original timestamps.

The Exp() function in Postgresql takes a numeric value as an input and returns a value having a Numeric data type or specifically DOUBLE PRECISION.

The cbrt() function in PostgreSQL takes a numeric value as an input and returns a value having DOUBLE PRECISION data type.

Exceptions are unexpected issues that we encounter while executing a program code. These disturb and sometimes abort the normal functioning of the program.

To get records from the last 24 hours in Postgres, execute the "SELECT * " command and set a condition to subtract "24 hours" from the current DateTime.

PostgreSQL provides an ASSERT statement for inserting debugging checks for the program. The ASSERT statement provides a condition to the program.

To insert a single quote in the text, we will have to double it up. This makes the text very complex and unreadable in case the string contains many single quotes.

The DDL(Data Definition Language) is used for creating and modifying the object structures in the database using some commands and statements.

To get the first row per group in Postgres, divide the data into groups, assign a number to each row, sort the data in specific order, and retrieve the top row.