“Best Finisher”, “Captain Cool”, “Lightening fast hands”. As one sees these phrases, the first person that clicks to the mind is none other than MS Dhoni. MSD has always been given various names like these by his fans. Then the question arises that is he really justifying the names given to him? Or, they are just given on just 2 or 3 performances? We’ll try to figure it out in the sections to come. #MS #Dhoni - One of the finest mind the game of cricket has ever witnessed. His cool and calm composure on and off the field, and his approach to make things simpler has always #motivated me and taught me how to #deal with problems in life. His approach to focus on the #process rather than #outcome has always helped me in #developing new skills. Not a die hard fan of MS Dhoni initially, but got inspired by his very unique Leadership style. - Backing his team members: In spite of many initial failures, he backed Rohit Sharma and Virat Kohli continuously. Today, they are the best batsmen...
Structured Query Language
- Used to manage data in a Relational Database Management System ( RDBMS ).
- Declarative, unlike its predecessors
- Can be procedural tool ! (PL/SQL)
- Inspired by Codd's Relational Model
SQL Language Elements:
- Statements (SELECT clause + WHERE clause).
- SELECT clause
SELECT * FROM Employee
- WHERE clause
WHERE id = 123 AND is_admin = 'true'
Predicate : 123
Expression : 'true'
Expression :
An Expression is like which produces scalar values(like 1+3 produces 4) or produces a table values(like result of another select query inside select query produces table).
Predicate :
Predicate allows us to specify conditions and these are generally evaluated either true or false or undefined.
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