inventory database design

user sign in with the mobile phone number. The user provides the home address as the default shipping address. User key information is the phone number and address.2, product few but good. To have high-quality pictures and text introduction. Including the origin, nutrition, whether the season, suitable for the crowd, eating, how to choose and other information. Of course, information can be constantly perfected.3, the user orders, the background response to delivery, customer receipt confirmati

the use of meaningless fields (logical primary key) or meaningful fields (business primary key). Individuals tend to "logical primary key", the reason is that the design of the database model structure clear, the relationship between clear, often more in line with the "third paradigm" (although not intentional, hehe). And it's easier to avoid "federated primary Keys", and you can use index-efficient field

11 Database Design Guidelines and 11 database guidelines I have followed Author Shivprasad koirala, a former MVC engineer from Microsoft ASP/ASP. NET, is now a CEO in India. If you have any questions about the first translation, please kindly advise. Introduction Before reading this article, I want to tell you that I am not a master of

cannot completely eliminate SQL statements and replace complex database access logic, however, it is a good embodiment of the "80/20 (or 90/10) Law" (also known as the "Pareto Law"), that is: less flowers (10%-20%) the effort can solve most of the problems (80%-90%), while much effort is needed to solve the remaining few problems. At least, the crud operations that occupy the vast majority in the data access layer, by using the ORM framework, we only

cannot completely eliminate SQL statements and replace complex database access logic, however, it is a good embodiment of the "80/20 (or 90/10) Law" (also known as the "Pareto Law"), that is: less flowers (10%-20%) the effort can solve most of the problems (80%-90%), while much effort is needed to solve the remaining few problems. At least, the crud operations that occupy the vast majority in the data access layer, by using the ORM framework, we only

Tags: information memory dependent steps technology sharing comparison must be good aboutObjective of this book: Understand the basic concepts and paradigms of a database Familiar with SMSS, T-SQL implementation of the database, build tables, add constraints Mastering T-SQL programming for powerful queries Master Creating indexes, views, quick access to databases Be familiar with creating stored procedures

Database design and database creation Everyone has a martial arts dream. We all envy Qiao Feng, who owns the 18 OPs of the dragon army, Zhang Wuji, who has the power and power of jiuyang, Ling wuchong, who has the power of yijinjing and exclusive jiujian, and envy the legendary lone man for defeat ...... In fact, there is a common secret to their success: they al

this field to 0 or N/. To avoid null fields. Second, if a table contains many columns that are allowed to be empty, it is close to 1/3 of the total number of columns in the table. In most cases, these columns are dispensable. If the database administrator encounters this situation, I suggest creating another sub-table to save these columns. Then, the master table is associated with the sub-table by using the keyword. Storing data in two independent t

can be "visible", either "read-only" or "available (If the button can be clicked )is actually the WHO, what, how problemSo the six tables mentioned above can actually design a table:650) this.width=650; "src=" http://images.cnblogs.com/cnblogs_com/leoxie2011/pri.jpg "width=" 608 "height=" 139 "style = "border:0px;"/>IV, example descriptionHere is an example of a design description. "User, role on page is p

products online for convenient transportation. Of course, new products may be added to the e-commerce platform in the future. Now we have begun to design the product information table of the platform database. Each sold item has the same attributes, such as the product ID, product name, product category, related information, supplier, number of items included, inventor