3. What is a data model? Hierarchical | Network | Relational | Entity-relationship model

2024/03/2900:08:13 technology 164603

3. What is a data model? Hierarchical | Network | Relational | Entity-relationship model - DayDayNews

3. What is a data model? Hierarchical | Network | Relational | Entity-relationship model - DayDayNews

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Speaking of JD.com, a private e-commerce giant, I believe readers should have purchased products on the JD.com APP platform. Overall, compared with Taobao and Pinduoduo, the shopping experience on this platform may be much better, otherwise it would not be the current situation o - DayDayNews

Speaking of JD.com, a private e-commerce giant, I believe readers should have purchased products on the JD.com APP platform. Overall, compared with Taobao and Pinduoduo, the shopping experience on this platform may be much better, otherwise it would not be the current situation o

I still miss Xiang Yu and refuses to go to Jingdong. Jingdong’s customer service is not bad, and the overlord is also afraid.

07/01 1021

Talking about the market from a professional perspective: the new individual economy era, /farmhouse docking/new media operation, "virtual entity complementarity" new business and new business formats are the general trend of fresh food e-commerce and physical stores, and "learni - DayDayNews

Talking about the market from a professional perspective: the new individual economy era, /farmhouse docking/new media operation, "virtual entity complementarity" new business and new business formats are the general trend of fresh food e-commerce and physical stores, and "learni

Fresh food e-commerce, "reincarnation" transformation is the only way out, otherwise you will die.

07/01 1260

The arrival of Tmall Double Eleven not only means that young people can buy, but also allows the elderly to have their own old age life. The elderly also like to shop online and know that coupons for 50 off for every 300 yuan can make things much cheaper than usual. They often di - DayDayNews

The arrival of Tmall Double Eleven not only means that young people can buy, but also allows the elderly to have their own old age life. The elderly also like to shop online and know that coupons for 50 off for every 300 yuan can make things much cheaper than usual. They often di

Tmall Double 11 is here, the benefits of the elderly are here, Huang Ruo is here to help

07/01 1762

#Toutiao Creation Challenge#Apple's latest iOS 16.1 update claims to fix many bugs and problems. However, these new versions do not seem to be free of bugs. Because, the updated version has been proven to have serious security vulnerabilities. A report from the Economic Times quo - DayDayNews

#Toutiao Creation Challenge#Apple's latest iOS 16.1 update claims to fix many bugs and problems. However, these new versions do not seem to be free of bugs. Because, the updated version has been proven to have serious security vulnerabilities. A report from the Economic Times quo

iPhone is very fragile and easy to attack in iOS 16.1 system, and so is iPad

07/01 1530

[Mobile China News] Double 11 is coming soon, and laptops are about to usher in a peak in purchasing. When choosing laptops, in addition to paying attention to the conventional configurations such as chips, graphics cards, and screens, more and more people are beginning to pay at - DayDayNews

[Mobile China News] Double 11 is coming soon, and laptops are about to usher in a peak in purchasing. When choosing laptops, in addition to paying attention to the conventional configurations such as chips, graphics cards, and screens, more and more people are beginning to pay at

Huawei Double 11 benefits are coming! Huawei's only 2K touch screen all-around notebook at 4K price is worth knowing

06/30 1892

Speaking of which, last night, netizens witnessed a historic moment - Musk's $44 billion acquisition of Twitter was finally settled, and the world's largest public opinion platform has completed privatization. - DayDayNews

Speaking of which, last night, netizens witnessed a historic moment - Musk's $44 billion acquisition of Twitter was finally settled, and the world's largest public opinion platform has completed privatization.

On the first day of Musk's career as Twitter boss, he speculated on five senior executives in a row, and may he lift the ban on Trump?

06/30 1879

technology

Like a dark horse, the sub-brand of realme, realme, has emerged from the almost saturated domestic mobile phone market and directly snatched certain users from the two cost-effective brands of Redmi and Honor.

With three years of talent to avoid being stuck, 12G+256G has dropped to 2229 yuan, and the independent flagship is about to leave.

07/01 1673

Due to well-known reasons, Huawei Kirin chips have basically been exhausted and can only produce Snapdragon chip version 4G mobile phones, which is a pity for fans. - DayDayNews

Due to well-known reasons, Huawei Kirin chips have basically been exhausted and can only produce Snapdragon chip version 4G mobile phones, which is a pity for fans.

Kirin chips are back? Huawei Mate40Pro official flashover is launched, supporting 5G network

06/30 1166

If a phone is difficult to make you complain about anything, then such a phone is definitely successful. After you see such a phone, you really no longer want to consider other models. According to user feedback, the mobile phone that is difficult to complain about this year has - DayDayNews

If a phone is difficult to make you complain about anything, then such a phone is definitely successful. After you see such a phone, you really no longer want to consider other models. According to user feedback, the mobile phone that is difficult to complain about this year has

512G+5000mAh large battery + 100 million pixels, is it suitable to be as low as 2199?

07/01 1252

"Human Enhancement" is a scientific and technological ethics and philosophical issue caused by modern technology to transform human itself. It involves the challenges of cutting-edge technologies such as artificial intelligence, brain-computer interface, neural regulation, gene e - DayDayNews

"Human Enhancement" is a scientific and technological ethics and philosophical issue caused by modern technology to transform human itself. It involves the challenges of cutting-edge technologies such as artificial intelligence, brain-computer interface, neural regulation, gene e

Human Enhancement: Can Perfect Perceptions bring sound humanity

07/01 1455

In the field of chip manufacturing, TSMC is the manufacturer with the most advanced technology, richest experience and the largest production capacity. None of them are the main reason for this situation. TSMC has more than 80 EUV lithography machines, coupled with a high yield r - DayDayNews

In the field of chip manufacturing, TSMC is the manufacturer with the most advanced technology, richest experience and the largest production capacity. None of them are the main reason for this situation. TSMC has more than 80 EUV lithography machines, coupled with a high yield r

Foreign media: TSMC is losing three major advantages

07/03 1792

Understanding what role online marketing can have can help corporate decision makers prescribe the right medicine, clarify the purpose of their own online promotion, and thus choose the right service provider and marketing method. The following is the relevant content about why c - DayDayNews

Understanding what role online marketing can have can help corporate decision makers prescribe the right medicine, clarify the purpose of their own online promotion, and thus choose the right service provider and marketing method. The following is the relevant content about why c

Internet Marketing | Why do companies do online marketing and promotion? And how should they do it?

07/03 1109

On October 31, a news that some functions of Tencent meetings began to charge for the hot search. According to reports, starting from September 15, some Tencent meeting functions will start charging, and a fee of at least one month will be required. Some netizens discovered that - DayDayNews

On October 31, a news that some functions of Tencent meetings began to charge for the hot search. According to reports, starting from September 15, some Tencent meeting functions will start charging, and a fee of at least one month will be required. Some netizens discovered that

After Dingding is charged for one project, some functions of Tencent Meeting will also be charged! Minimum monthly subscription

07/03 1397

Amazon Cloud Technology has taken another big move! At this year's Amazon Cloud Technology China Summit, Amazon Cloud Technology released its six major cloud computing technology trend outlooks and officially announced four strategic measures: "Connecting China and foreign countr - DayDayNews

Amazon Cloud Technology has taken another big move! At this year's Amazon Cloud Technology China Summit, Amazon Cloud Technology released its six major cloud computing technology trend outlooks and officially announced four strategic measures: "Connecting China and foreign countr

Four strategic measures, the logic behind Amazon Cloud Technology's increase in Chinese market

07/03 1914

Xiaopeng 1024 Technology Day has become a retention program for the car circle and technology circle after the previous three years of development. This year, I completed the entire live broadcast on time and on time, sorted out the notes, and gave you a look at what Xiaopeng has - DayDayNews

Xiaopeng 1024 Technology Day has become a retention program for the car circle and technology circle after the previous three years of development. This year, I completed the entire live broadcast on time and on time, sorted out the notes, and gave you a look at what Xiaopeng has

Let’s talk | How big is the difference between XNGP and XPILOT of Xiaopeng G9?

07/03 1371

It is still relatively important for the company to do a good job in sales automation. It can not only meet the needs of the sales team, but also improve the level of business management. Through the CRM customer management system, it can help enterprises manage customers and con - DayDayNews

It is still relatively important for the company to do a good job in sales automation. It can not only meet the needs of the sales team, but also improve the level of business management. Through the CRM customer management system, it can help enterprises manage customers and con

Three functions of CRM realize enterprise sales automation

07/03 1480

The supply chain has also been reported that HiSilicon, a subsidiary of Huawei in Mainland China, will be included in the first batch of cooperation targets, and Zhunan Advanced Packaging Factory is expected to provide capacity support. TSMC system integrates chip technology and - DayDayNews

The supply chain has also been reported that HiSilicon, a subsidiary of Huawei in Mainland China, will be included in the first batch of cooperation targets, and Zhunan Advanced Packaging Factory is expected to provide capacity support. TSMC system integrates chip technology and

Chuan HiSilicon will be included in the cooperation target! TSMC Zhunan New Factory Locks Next Generation Package

07/03 1475

Taiwan's major semiconductor manufacturer TSMC was infected with a computer virus on the evening of August 3, which attracted the attention of the technology industry to the security issues. Because in response to this incident, TSMC initially estimated that the impact amount was - DayDayNews

Taiwan's major semiconductor manufacturer TSMC was infected with a computer virus on the evening of August 3, which attracted the attention of the technology industry to the security issues. Because in response to this incident, TSMC initially estimated that the impact amount was

TSMC's "virus incident" impacted about 1.7 billion more than market expectations, arousing the awareness of interbank security

07/03 1417

TSMC said that some production equipment was infected with viruses, but was not as rumored to be hacked. The company has controlled the scope of this virus infection and found a solution. The affected production equipment is gradually resuming production. - DayDayNews

TSMC said that some production equipment was infected with viruses, but was not as rumored to be hacked. The company has controlled the scope of this virus infection and found a solution. The affected production equipment is gradually resuming production.

What happened to the USB drive? TSMC's three major wafer production lines are hit by viruses and stopped production

07/03 1250

On June 29, 1995, a collapse occurred at Sanfeng Department Store in Seoul, South Korea. All five floors collapsed within 30 seconds, killing 502 people and injuring 937 people... - DayDayNews

On June 29, 1995, a collapse occurred at Sanfeng Department Store in Seoul, South Korea. All five floors collapsed within 30 seconds, killing 502 people and injuring 937 people...

The collapse of Sanfeng Department Store in South Korea in 1995

07/03 1338

As the third city in Taiwan to open MRT, Kaohsiung has not opened or extended new MRT lines in one go since 2008, since it opened two MRT lines in one go - Red Line and Orange Line, and the fastest new line in the future is also the yellow line. - DayDayNews

As the third city in Taiwan to open MRT, Kaohsiung has not opened or extended new MRT lines in one go since 2008, since it opened two MRT lines in one go - Red Line and Orange Line, and the fastest new line in the future is also the yellow line.

Kaohsiung MRT route map (20221005 edition)

07/03 1272

Han Kuo-yu, who just took office as mayor of Kaohsiung, will be in Taipei today to participate in the "Executive Yuan Meeting" for the first time. Kaohsiung City is in high debt. He laughed and said that he loves money now and cannot lose a dollar. The subsidies promised by the T - DayDayNews

Han Kuo-yu, who just took office as mayor of Kaohsiung, will be in Taipei today to participate in the "Executive Yuan Meeting" for the first time. Kaohsiung City is in high debt. He laughed and said that he loves money now and cannot lose a dollar. The subsidies promised by the T

Video | Domineering! Mayor Han Kuo-yu first attended the Tsai administration meeting and asked for money when he spoke

07/03 1352