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Introduction to Database
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Swathi Kantharaja
November 16, 2014
Programming
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69
Introduction to Database
Swathi Kantharaja
November 16, 2014
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Transcript
DATABASE SWATHIK.COM
EVERY MINUTE FACEBOOK USERS SHARE AROUND 2M PIECES OF CONTENT
TWITTER USERS TWEET OVER 200K TIMES GOOGLE RECEIVES OVER 4M SEARCHES 2
WHAT IS A DATABASE? A SYSTEM TO STORE MANIPULATE AND
RETRIEVE DATA 3
WHERE ARE THEY USED?
DATABASE TABLE GROCERIES
None
SQL STRUCTURED QUERY LANGUAGE
8 SELECT * FROM GROCERIES; INSERT INTO GROCERIES ( NAME,
PRICE, CATEGORY) VALUES (‘BLUEBERRIES’, ‘3.0’, ‘FRUITS’);
9 UPDATE GROCERIES SET PRICE = 5.0 WHERE NAME =
‘BLUEBERRIES’; DELETE FROM GROCERIES WHERE CATEGORY = ‘VEGETABLES’;
MYSQL POSTGRES IBM DB2 ACCESS DB MONGODB REDIS 10
RAILS APP SQLITE 11
ACTIVERECORD MAGIC SELECT * FROM GROCERIES; GROCERY.ALL
THANK YOU!