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How to Start, Stop, or Restart the PostgreSQL Server?

There are various ways to start, stop, or restart the Postgres server on Windows, such as using the “net start” command, “pg_ctl” utility, or “services” manager.

How Do I Set/Change the Default Schema in PostgreSQL

A schema in database management systems represents a set of rules that regulate/handle a database. It is a logical structure that holds various database objects like views, tables, indexes, sequences, etc. In Postgres, “public” is a Default schema. So, by default, Postgres users can access the "public" schema and create objects in it, such as views, tables, etc.

The SET SEARCH_PATH command, however, allows a user to set any other …

How to Create a Copy of a Database in PostgreSQL

In PostgreSQL, use the CREATE DATABASE command along with the “WITH TEMPLATE” parameter to copy or clone a database.

Working With PostgreSQL JSON Data

PostgreSQL supports a JSON data type that stores the data in the form of key-value pairs. It is an open standard format for transferring data between a server and web apps.

PostgreSQL Conditional Expressions - Explained With Examples

In PostgreSQL, conditional expressions are used to select one of the multiple values based on the Boolean condition.

How to Query JSON Column in Postgres

Postgres supports a couple of native JSON operators to query the data from a JSON column. These operators include a short arrow “->” and a long arrow “->>”.

How to Convert a Unix Timestamp to a Date or Time Value in PostgreSQL

In PostgreSQL, the TO_TIMESTAMP() function is used to convert a Unix or Posix Timestamp to a date or time value.

PostgreSQL CASE Statement - Explained With Examples

The CASE statement is one of the conditional expressions that is used to create conditional queries. Postgres supports two forms of the CASE statement: A Searched CASE and a simple CASE.

PostgreSQL Not equal to (!=) Operator

The NOT EQUAL operator is one of the comparison operators that check if the input values are equal or not. It is symbolized as “!=” or “<>”.

How to Convert Timestamp to Date in PostgreSQL

Postgres offers various ways to convert a TIMESTAMP to a DATE, such as TO_CHAR() function, CAST operator, EXTRACT function, etc.