PostgreSQL, PGadmin, SQL Tutorial + Mini Project!

Explore database concepts and the structured query language, see how a database management system stores data securely and efficiently, and learn SQL basics for create, read, update, delete.

Install PostgreSQL and PGAdmin, and configure the JDBC driver. Use SQL to create a students table and insert and read records.

Explore servlet-jdbc-database basics by connecting to PostgreSQL, loading the driver, executing queries, and displaying student details from the result set in a simple web view.

Explore database management fundamentals, focusing on relational databases, SQL, and practical use with PostgreSQL and pgAdmin, including designing databases and understanding transactions.

Explore the components of a dbms, from hardware and software to data, query language, and metadata, and compare standalone, two-tier, and three-tier architectures.

Explore the relational database model, including tables (relations), keys (primary, foreign, composite, candidate, super), and one-to-many and many-to-many relationships, with schema concepts and SQL basics.

Learn to create tables with constraints and primary keys, and to insert, read, update, and delete data using SQL in PostgreSQL. Explore running these commands via psql and pgadmin.

Explore PostgreSQL constraints using pgAdmin and SQL. Learn primary key, foreign key, not null, unique, and check constraints, and implement a many-to-many relation with a student course table.

Learn to create tables with create table as, populate them from queries, and manage with alter table—adding, dropping, renaming columns, changing data types, and constraints, plus drop or truncate operations.

Fetch data from the database using sql clauses such as select, order by, distinct, group by, and having, and apply aggregate functions like sum to compute totals.

Master fetching specific data from the students table using the where clause in SQL, with operators like in, between, or, and like patterns, plus limit and fetch to retrieve results.

Explore how to join tables using inner, left, right, full, cross, and self joins, map students to courses via a student_course table, and use aliases for clarity.

Explore how to combine result sets with union, union all, intersect, and except, then simplify grouping with grouping sets, cube, and roll up across multiple queries.

Learn how to use subqueries to nest queries in sql, compare ages to the average, and apply any and all to match ids with related records.

Explore conditional expressions in SQL, including the case statement with when, then, and end. Learn the coalesce function, which returns the first non-null argument when multiple inputs are present.

Create users or roles with restricted or exclusive privileges in PostgreSQL using pgadmin, including login, password, expiry, and schema or table level grants.

Learn how database views in PostgreSQL provide restricted access by creating a view that shows only selected data, assign privileges, and securely query from pgAdmin.

Master transaction management by using begin transaction, commit, and rollback to ensure all-or-nothing changes, illustrated with insertions in a students table and real-world scenarios like transfers.

Discover how database functions or stored procedures bundle multiple statements into one call, improve testing and performance, and learn creation, return types, and language options.

Explains how triggers run a function on table events like insert or delete with before, after, or instead of timing. Demonstrates a trigger logging joining dates with the current timestamp.

Explains the physical schema and the default public schema, with objects like tables, functions, domains, materialized views, and sequences; shows creating schemas, using schema-name dot object-name, and refreshing materialized views.

Explore database-level objects, from catalogs and schemas to casts, triggers, extensions, and tablespaces, and learn to create databases, schemas, and casts using SQL or wizards.

Discover Postgres command categories: DDL, DML, DCL, and TCL, with examples like create, alter, drop, insert, update, delete, select, grant, revoke, and commit or rollback.

Explore the PgAdmin dashboard to understand real-time metrics like server sessions, transactions, and locks, and review properties, statistics, and dependencies for database objects, plus backup, restore, and help resources.

Visualize requirements and real-time transactions to design a mature relational schema, then apply normalization with primary keys, foreign keys, and atomic values to ensure data consistency and minimal schema changes.

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Learn how the Java database connectivity API uses driver jars from database providers to connect to PostgreSQL, SQL Server, or others, via driver manager, connection, statement, and result set.

Explore the mvc architecture by separating model, view, and controller, using a data access object to fetch students from the database and forward results to the view.

Explore a school management mini project with crud operations for students. Build, edit, delete, and list student records via a data access object and controller logic.

Explore the edit and add or update flow in a mini project, including parameter passing, hidden fields, and student table operations, with deployment descriptor to switch databases.

Thank learners for completing the course, celebrate their achievement, remind them of lifetime access and free updates, invite reviews, and wish them success in future plans.