PostgreSQL Tutorial for Beginners | Learn PostgreSQL

Install PostgreSQL on macOS by downloading the macOS installer from the PostgreSQL site, installing and launching the application, then create a database with the create database command.

Install PostgreSQL on Ubuntu Linux using the terminal by updating packages, installing the PostgreSQL package, starting the service, checking status, logging in as postgres, and listing databases.

Learn how to install PostgreSQL and pgAdmin on Windows 10, choose the Windows 64‑bit installer, complete the setup, and begin using pgAdmin to manage your databases.

Create a database in PostgreSQL with a simple command, list databases to verify, connect to the new database, and drop it when finished.

Learn how to create and drop a PostgreSQL table, define columns with appropriate data types, assign a primary key, and explore public schema basics for practical database design.

Learn to insert data into a PostgreSQL table using insert into, with or without column lists, and how to insert multiple rows in a single statement.

Learn to insert values, connect to a database, and run select queries in PostgreSQL, choosing all columns or specific fields from a table.

Learn how to retrieve unique values from a table using the select distinct syntax in PostgreSQL. The lecture demonstrates applying distinct to a column like name to avoid duplicates.

Learn how to use the PostgreSQL where clause to filter results with conditions in a select statement, specifying a roll number and name to retrieve exact records.

Explore how to apply the and condition in PostgreSQL queries, combining predicates with and, including comparisons like greater than, less than, and between, to filter results.

Explore how the or condition works in PostgreSQL for beginners, showing how any true condition satisfies the query and how it differs from the and condition.

Learn how to use the PostgreSQL order by clause to sort query results in ascending or descending order by fields like name or income.

Learn to use the PostgreSQL limit clause in select statements to return only a subset of rows, such as the first three or five, with optional expressions.

Learn how to update existing records in PostgreSQL by using the update statement, set clause, and where conditions to modify fields like names or dates.

Learn how to delete rows in PostgreSQL using the delete statement, specifying the table and conditions for single or multiple row removals. Remember that omitting a condition deletes all rows.

Learn how to drop a table in PostgreSQL using the drop table statement by naming the target table, and observe how dropping removes the table from the database.

Master the PostgreSQL truncate table statement syntax and usage. Compare truncating a table with deleting, and understand performance implications for handling large data sets.

Explore how to use PostgreSQL alter table to add, drop, and modify columns, refresh tables, and apply syntax rules through practical examples.

learn how to use the between operator in PostgreSQL to filter query results and select records by range with clear, practical examples.

Learn how to use aliases to display alternative column names in PostgreSQL queries, without changing the underlying data, including applying multiple aliases for a result.

Learn how to specify multiple values in a PostgreSQL select statement using the IN clause, practice querying by employee IDs, and view resulting data sets.

Learn how to use the SQL like operator with wildcard characters % and _ to match patterns in PostgreSQL, with examples for names starting or ending with specific characters.

Learn to copy data from one table to another using insert into select in PostgreSQL, ensuring matching column data types and correct target. Apply where clauses to filter copied rows.