SQL for beginners with :( PostgreSQL, MySQL, SQL Server )
SQL is a standard language for accessing and manipulating databases.
SQL is one of the most in-demand tech skill used across many industries.
What is SQL?
SQL stands for Structured Query Language
What Can SQL do?
SQL lets you access and manipulate databases
SQL can execute queries against a database
SQL can retrieve data from a database
SQL can insert records in a database
SQL can update records in a database
SQL can delete records from a database
SQL can create new databases
SQL can create new tables in a database
SQL can create stored procedures in a database
SQL can create views in a database
SQL can filter data returned from a database
SQL can sort data returned by a database.
SQL can be used to truncate and drop tables.
PostgreSQL is a powerful, open source object-relational database system.
PostgreSQL is used as a primary database for many web applications as well as mobile and analytics applications.
MySQL is a relational database management system based on SQL – Structured Query Language. The application is used for a wide range of purposes, including data warehousing, e-commerce, and logging applications. The most common use for mySQL however, is for the purpose of a web database.
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