What are the best SQL video tutorials?
By watching these videos and notes you can learn by your own
Structured Query Language, or what's more commonly known as SQL, is a special-purpose programming language that's used to interact with databases. It works by analyzing and understanding databases consisting of fields of data within tables.
SQL has roots dating back to the early 1970s, during which IBM engineers Donald Chamberlin and Raymond Boyce designed the initial version to the manipulate and retrieve data stored in the company's database system. The two pioneers of SQL called their new language SEQUEL, although they were later forced to change it due to trademark issues. SQL has since become an official standard for the American National Standards Institute (ANSI) and the International Organization for Standardization (ISO).
1) Data Mining
Learning SQL will allow you to mine data with greater efficiency. Using basic queries you can identify specific data at time intervals, view update events, monitor table activity, and much more. This alone should be reason enough to take the initiative and learn SQL.
2) SQL Programmers in High Demand
3) Data Manipulation
SQL is particularly effective at data manipulation. Because it allows you to see the exact data and how it works, you'll have an easier time testing and manipulating the data. Furthermore, data stored in SQL is dynamic, meaning it can me modified and manipulated at any time using some basic queries.
4) Combine Data from Multiple Sources
Combining data from two or more sources can be time-consuming and downright daunting task. However, SQL makes the process a breeze by supporting simple "merges" in which the specified fields or entire databases are combined.
5) Manage Large Pools of Data
Still searching for a practical way to manage large datasets? Traditional spreadsheets can be used to manage small-to-medium-sized pools of data, but you'll need a different solution when handling excessively large records. Thankfully, this is an area in which SQL shines: whether it's 1,000 records or 100 million, SQL is fully equipped to manage datapools of virtually all sizes.
6) Servers and Databases
If you plan on managing servers, or creating your own server, SQL programming language will most certainly prove useful. Many servers use databases like MySQL or SQL Server to, well, store data. By familiarizing yourself with SQL and its respective queries, you can easily navigate through the otherwise confusing web of datasets.
ii) SQL Syntax
iii) SQL Data Types
iv) SQL Operators
viii) Data Control Language
ix) SQL SELECT Statement
x) SQL Joins