A single PostgreSQL server can contain many databases. Let’s explore three different approaches to list databases in PostgreSQL!
Update the values in the second table by joining values from the first table: Create two tables with data: createtablecountries (idint, namevarchar(20));createtablestates (idint, namevarchar(20));insertintocountriesvalues(1,'America') , (2,'Brazil') , (3,'Canada')...
How to update the Data in PostgreSQL using PHP - In this tutorial, we will learn how to update the record or data in PostgreSQL using PHP.File structure for this tutorial
How to Describe Database Objects in PostgreSQL From psql? SQL Shell or psql supports several meta-commands that help us perform different database operations, including describing the database objects. In this write-up, we will execute the different meta commands to describe the following database...
PostgreSQL Views Introduction to PostgreSQL Views In these articles, we will learn about PostgreSQL Views. Views are basically a query with a name; therefore, a view is useful for wrapping a commonly used complex query; we can represent data in the database tables using views named query, we...
You can use several functions to get the current date and time in PostgreSQL. Here are some commonly used functions: CURRENT_DATE: Returns the current date without the time part. Example: sql SELECT CURRENT_DATE; CURRENT_TIME: Returns the current time without the date part. Example: sql...
In this post, we are going to see how to import Oracle data into PostgreSQL. If you have been using an Oracle database and now want to move to an open source alternative, then PostgreSQL is the best choice because not only is it free but it’s also a powerful RDBMS (relational data...
How to Connect to a PostgreSQL database - Marco Savard© neosapiens
In PostgreSQL, you can use the“createdb”command to create/make a new database. You can run the "createdb" command directly from the Command Prompt, unlike the“CREATE DATABASE”command. The“createdb”command can add some comments/descriptions to the database altogether. ...
PostgreSQL is a robust and versatile open-source relational database management system that has gained considerable traction in the tech industry. It has become the preferred choice for developers looking to handle complex queries and big datasets. Wh