Gain insights into PostgreSQL, from simple queries to advanced functions like transaction control, security, replication, and performance tuning. Explore complex data types, backups, upgrades, and migration.

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PostgreSQL is a popular relational database management system. This course offers many features—from fundamental commands to advanced functionalities within PostgreSQL. 

You will learn simple queries, data definition, and data manipulation through SQL. You’ll be taught how to work with complex data types, regular expressions, views, indexing, and stored procedures. You’ll also learn about transaction control, administration, security, replication, and performance tuning. Following that, you’ll gain insight into the methods for backup, restore, and recovery. You’ll then learn about upgrading and migration from legacy systems. There’s also a mini project and a thorough assessment to enhance your learning experience and confidence.

This course is an ideal choice for developers who want to upgrade their database management skills with hands-on experience. Starting from the basic concepts, this course is an excellent option for those who want to switch to the field of databases.

Mastering PostgreSQL Databases: From Basics to Advanced

Which data type can be used to store a geometric point from geospatial queries in PostgreSQL? 

Which data type can be used to store a geometric point from geospatial queries in PostgreSQL?

```sql
CREATE VIEW product_view AS SELECT id, product_name, price FROM Product;
``` 

```sql
CREATE VIEW product_view SELECT id, product_name, price FROM PRoduct;
``` 


```sql
CREATE VIEW SELECT id, product_name, price FROM Product AS product_view;
```

```sql
CREATE VIEW product_view (id, product_name, price) FROM Product; 
```

What is the correct syntax for creating a view in PostgreSQL? 

What is the correct syntax for creating a view in PostgreSQL?

To execute a function automatically when an event occurs 

What is the purpose of a trigger in PostgreSQL? 

What is the purpose of a trigger in PostgreSQL?

To execute a function automatically when an event occurs  

What is the purpose of a sequence in PostgreSQL? 

What is the purpose of a sequence in PostgreSQL?

```sql
CREATE FUNCTION get_employee(id INTEGER) RETURNS TEXT
LANGUAGE plpgsql 
AS $$ 
START 
   RETURN (SELECT job_title FROM Employee WHERE employee_id = $1); 
DONE; $$;

```sql
CREATE FUNCTION get_employee(id INTEGER) RETURNS TEXT
LANGUAGE plpgsql 
AS $$ 
BEGIN 
   RETURN (SELECT job_title FROM Employee WHERE employee_id = $1); 
END; $$;
```

```sql
CREATE FUNCTION get_employee(id:: INTEGER) RETURNS result::TEXT
LANGUAGE plpgsql 
AS $$
BEGIN  
   RETURN (SELECT job_title FROM Employee WHERE employee_id = $1); 
END; $$;
```

```sql
DECLARE FUNCTION get_employee(id INTEGER) RETURNS TEXT
LANGUAGE plpgsql 
AS $$
BEGIN  
   RETURN (SELECT job_title FROM Employee WHERE employee_id = $1); 
END; $$;
```

Which option is a valid syntax for creating an SQL function?

Which option is a valid syntax for creating an SQL function?

Locks are mechanisms used by database systems to ensure data integrity and consistency.

Locks can be applied at various levels, such as table, row, and page levels.

Locks can prevent conflicting updates from occurring in the database.

Which statement about locks is true?

A deadlock is a situation that occurs when two or more users or processes attempt to acquire locks in such a way that causes them to wait for each other indefinitely.

Deadlocks is a condition in which the database runs out of disk space.  

Deadlocks are most commonly caused by improperly configured locking strategies in database systems. 

Deadlocks can usually be resolved by prioritizing requests, minimizing the amount of locking in the system, and reducing contention by optimizing queries or adding more resources to the database. 

Which statement about deadlock is _not_ true? 

Which statement about deadlock is not true?

Which is the most restrictive transaction isolation level?

Which is the most restrictive transaction isolation level?

The PostgreSQL Advanced SQL quiz will cover topics such as complex data types, regular expressions, views, stored procedures and functions, triggers, and sequences. 

The PostgreSQL Advanced SQL quiz will cover topics such as complex data types, regular expressions, views, stored procedures and functions, triggers, and sequences.

Take this quiz to test your knowledge on advanced SQL queries.

Introduction to Database Management System

SQL Basics

Personal Expense Tracker Database

Advanced SQL

Administration

Security

Replication

Performance Tuning

Designing an Online Retail Store

Backup and Recovery

Upgrade and Migration

PostgreSQL Assessment

Appendix

Quiz on Advanced SQL