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How to Use FLOOR() Function in PostgreSQL

In PostgreSQL, the FLOOR() function is one of the math functions that accept a numeric value or expression and round down the given number to the nearest integer/whole number.

How to Use TRIM() Function in PostgreSQL

TRIM() is an inbuilt function in Postgres that accepts a string and deletes the leading, trailing, or both leading and trailing spaces or characters from a string.

How to Use MD5 Function in PostgreSQL

PostgreSQL provides a built-in function named MD5 that accepts a string as an argument and converts it into a 32 characters text string. It retrieves the resultant value in the hexadecimal.

How to Use LOG() Function in PostgreSQL

PostgreSQL provides a built-in mathematical function named LOG() that calculates the logarithm of a number to the base ten or the specified base.

How to Use CEIL() Function in PostgreSQL

Postgres provides a CEIL() function that takes a numeric value or an expression as an argument and rounds up the given value/expression to the next whole number.

How to Use TRUNC() Function in PostgreSQL

In PostgreSQL, TRUN() function is one of the math functions that accept a numeric value and truncates its entire fractional part or up to specific decimal places.

How to Use Temporary Table in PostgreSQL

The “CREATE TEMP TABLE” command is used to create the temporary table in the PostgreSQL. This table will be removed after terminating the current session.

PostgreSQL List All Tables

In Postgres, an SQL command: “\dt” and a couple of built-in schemas: pg_catalog and information_schema, are used to list all the tables of a database.

How to Alter Role in PostgreSQL

Postgres provides the “ALTER ROLE” statement to alter an existing role with a new role. Using this, users can change the name and attributes of any existing role.

How to Use GRANT Statement in PostgreSQL

In PostgreSQL, users can access and override the privileges/rights of the database objects through the “GRANT” statement.