Relational Algebra SELECT(σ) Projection(π) Rename (ρ) Union operation (υ) Set Difference (-) Intersection Cartesian product(X) Join Operations Inner Join: Theta Join: EQUI join: NATURAL JOIN (⋈) OUTER JOIN Left Outer Join(A B) Right Outer Join: ( A B ) Full Outer Join: ( A B) Basic SQL Relational Algebra Operations Relational Algebra devided in various groups Unary Relational Operations SELECT (symbol: σ) PROJECT (symbol: π) RENAME (symbol: ρ) Relational Algebra Operations From Set Theory UNION (υ) INTERSECTION ( ), DIFFERENCE (-) CARTESIAN PRODUCT ( x )...

According to a new report from the New York Post, Apple is looking to expand on its iconic Fifth Avenue retail location. While the company renovates the historic cube designed building, it will open in “some or all” of the 61,000-square foot FAO Schwarz space in the GM building. The report notes, however, that the temporary expansion could turn in to a permanent one seeing as how cramped the Fifth Avenue store has become....

Update: The WSJ reports that the deal is not yet certain. Sharp may come with some potential financial risks, which Foxconn is evaluating before it actually signs the deal. Last month it was reported that Apple manufacturer Foxconn had bid $5.3 billion to acquire Japanese display maker Sharp, who has faced numerous financial and manufacturing difficulties over recent years. Now, Japanese news outlet Nikkei Asian Review reports that Sharp has accepted an offer from Taiwan’s Hon Hai Precision Industry, better known as Foxconn, for $6....

Last week, a report from The Wall Street Journal claimed Apple’s much rumored HDTV set is now in the “early stages of testing” with partners Hon Hai Precision and Sharp. Today, we get more details surrounding the rumored product from the Taiwan national news agency’s English language Focus Taiwan. According to the report, citing sources close to Hon Hai Precision Industry Co., the supplier is testing Apple television designs, but the possibility of the product shipping in 2013 is “unlikely”:...

Catalyst is a sleek thin case that barely hides the design of the iPhone 6, considering how protective the case is. It is drop proof to 2 meters (6.6 feet), water proof to 5 meters (16.4 feet), dirt proof, snow proof and works with Touch ID. The case is clear so you can actually see the color of the phone. It does have a screen protector built into the case, which does not affect using the touchscreen on the iPhone....

The latest Star Wars: The Rise of Skywalker featurette teases a return of the Ewok, Wicket W. Warrick. The adorable character is best know for aiding the Rebellion’s battle against the Empire in Return of The Jedi. He was played by a young Warrick Davis in 1983; his prospective inclusion adds another layer of nostalgia to the trip Disney has been on promoting Star Wars’ latest epic. Over the course of the last week, Disney has released one clip (“they fly now”), handful of TV spots, and special looks/featurettes exploring all things quintessentially Star Wars....

Luke Perry, star of Beverly Hills, 90210 and The CW’s Riverdale, has passed away at the age of 52. Perry was taken into hospital on February 28 following a stroke, and despite the best of efforts of medical staff at St. Joseph’s Hospital in Burbank, California to help him recover, the damage caused was too great. Born in Ohio in 1966, Perry was known to those who grew up in the 1990s for his role as Dylan McKay in teen drama Beverly Hills, 90210....

Artist and creator Rob Liefeld took to social media to reveal the return of one of his oldest characters - Prophet. In a Facebook post, Liefeld explained the character will return in a special 50th issue “loaded with goodies.” Liefeld was also enthusiastic about the character’s appearance outside of comic books, having read the outline for the Prophet’s upcoming feature film debut. John Prophet first appeared in Youngblood #2 in 1992....

Jersey Shore: Family Vacation’s Ronnie Ortiz-Magro “feels pretty horrible” about domestic violence and kidnapping arrest, according to a source. The reality star would just like to concentrate on getting his life back on the right track. Ronnie and girlfriend Jen Harley have called it quits multiple times since their first meeting in 2017. Most recently they broke up in early September but got back together within two weeks. Both have had a history of turning on one another with Harley physically assaulting him with her car and now Ronnie allegedly running after her with a knife....

The developers are taking Pokemon Scarlet and Violet to the next level. Many players are now searching for ways of making sandwiches in the game. It is nothing but a new objective for the players to keep them engaged in the game for more time by providing them with some exciting rewards. With the help of Raid Power Sandwiches, the players will be able to get some valuable rewards which you will love definitely....

We traveled to Montreal last week to chat with Ubisoft about the future of Tom Clancy’s Rainbow Six Siege and to watch the beginning of the Siege Invitational 2020 which wraps up year 4 of the game. With each season’s conclusion, and more so at the end of each year, Ubisoft reveals a bit about what’s coming next to the game. Yesterday we took a deep dive into Year 5, Season 1 - titled Operation Void Edge - and today we’re looking at the longer-term the future, the longest in fact Ubisoft has ever revealed for Rainbow Six Siege....

Updated September 05, 2022: Here, we have listed Realme and Oppo Gallery Photos APK with the latest version V12.12.17 for your Android smartphone. As we know, today’s phone market is completely saturated to the brim, and that is where the UI kicks in. Companies try to give their users a fresh and unique UI experience. Users are automatically attracted to the brand with a unique and great UI. The latest firmware update in the Realme and Oppo phones has brought us some brand-new well massive improvements to the UI and proprietary apps....

Today is the last day you can purchase AppleCare+ for your iPhone 4S or iPhone 4, if you purchased it on October 14th or after. AppleCare+ was announced along with the iPhone 4S, and is available for $99 (two years). The plan not only gives you phone and genius bar support coverage, but also accidental damage coverage with a $49 service charge. The plan covers up to two accidents. $99 is a pretty solid insurance policy (Square Trade offers the same)....

A new study published today takes an in-depth look at how apps used in schools are sharing children’s data with third parties. The research found the majority of school apps transmit data and that Android is 8x more likely to be sending that data to “very high-risk” third parties than iOS. The new study was performed and published by the Me2B Alliance, a nonprofit with the goal of “fostering the respectful treatment of people by technology....

The removal of the 3.5mm analogue headphone jack from the iPhone 7 is well documented at this point. What is less clear is what Apple will offer as a replacement for new iPhone buyers. There have been rumors (and alleged photos) of Lightning EarPods to be bundled in the box … but there has also been rumors of Apple developing Bluetooth headphones too. A report from Forbes says Apple has been working on an in-house custom designed Bluetooth chip for several years....

Chinese site Caixin reports that Apple has agreed to take much smaller fees from banks in China compared to the US as the company this month launches its Apple Pay payments service in the country. The deal with Chinese banks will see Apple get around 0.07 percent per transaction, according to the report citing unnamed sources, compared to approximately 0.15 percent it’s charging banks in the US. Caixin adds that sources say new banks signing on with Apple in to support Apple Pay in the country might not get the same lower fee and that the agreement with the initial launch group of banks was “a result of compromise from both sides” in an effort to get the service launched....

Just as doubt was beginning to surround whether or not Apple was still on track to release new MacBook Pros this month, a new report from Macotakara this evening brings some reassurance. The report claims that Apple will still announce and release a new lineup of MacBook Pros this month, and offers up some details… According to the report, which cites a “reliable Chinese supplier,” Apple plans to both announce the new MacBook Pro this month, as well as to ship it to retailers....

News first surfaced earlier this year that Apple and BMW had engaged in negotiations over the possibility of the Cupertino company using components from the carmaker for its own electric vehicle project. The negotiations reportedly fell through following a visit by Tim Cook and other Apple execs to BMW in Germany, but a report from Reuters today adds that talks between the two companies “may be revived at a later stage....

August unveiled its latest generation of smart locks and doorbells last fall with its improved Pro lineup, and we’ve had a chance to test out some of the new features. Smart Lock Pro includes upgraded internals and Z-Wave Plus support, while Doorbell Cam Pro adds a useful floodlight for scaring off intruders and seeing visitors in the dark. Check out our hands-on below: As an Apple HomeKit enthusiast and a renter, I really appreciate how easy it is to install August smart locks....

It happens all the time. Parents upgrade old iPads with new ones and lucky kids inherit magical (and expensive) tablets. But kids aren’t nearly as careful with pricey pieces of glass and somehow always messy hands. That’s what happened in our house late last year, and Speck’s iGuy case for iPad has made a world of difference. This was especially clear yesterday evening when I encountered my toddler’s iPad covered in grape jelly....