hotel reservation database design

When I designed the architecture for the global hotel online booking system, I found a headache: How can I ensure that the system interacts with hotels distributed around the world? One compromise is that we provide a management function portal for hotel managers who can input the data of the hotel's rooms and room types into the system database. The room data pu

I used the date selection in Ctrip Hotel reservation. There are a few interesting phenomena. Users should know that it is impossible to book yesterday's Room today. For example, today is December 8, you can only start from today's room, can not book yesterday's room. If you "choose" December 7, the site will be prompted "check-in time can not be earlier than 200-12-8." Because of the

auto_increment,---primary keyOrderId INT,---Foreign key, introduces the primary key of the order tableFOOD_ID INT,---foreign key, refers to the primary key of the menu information tableFoodcount INT---The number of dishes);----To add a relationship constraint to a dish categoryALTER TABLE Food ADD constaint fk_food_foodtype_id FOREIGN KEY (foodtype_id) REFERENCES foodtype (ID); ----Order Details, relationship to the order formALTER TABLE orderdetail ADD CONSTRAINT orderdetail_order_id FOREIGN K

Program Development software: MyEclipse8.5 version database: MysqlProgram Function Description:The program uses the Struts2+spring+hibernate development, the database link also uses the Connection pool technology!Basic information:Add a RoomBasic room InformationAdd GuestBasic Guest InformationAdd EmployeeBasic Employee InformationHousing Adjustment:Room freeAdjust RatesHousing Management:Book Room Informat

out? How to make our application more sticky? What are some of the innovative ideas that are available while doing the full function? Through the summary of the v1.x series version and the analysis of the competition, the user's use scene, we extracted several key points of this revision: Remember someone used "awakened memory" to generalize the design concept of the object, this generalization uses i

Install MySQL: Yum Install Mysql-pythonBe sure to pay attention to the case of the egg. After the installation is complete, in Python Import MySQLdbNo error will prove the module installation is complete4: Database connectionBefore you connect to a database, verify the following: You have created the database TESTDB. In t

Database Technology-database Naming and Design Specifications database development history has been using a somewhat mysterious system naming database table and field. In the original database management system (DBMS), the results

dependency relationship with the primary key.Cases:Project number project name employee number name Job salary hoursA1 Garden Building 1001 Yang Guoming Engineer 65 13A1 Garden Building 1002 Ban Jianbin Technician 60 16A1 Garden Building 1004 Wu Yuelin lawyer 100 19A2 overpass 1001 Yang Guoming Engineer 65 13A2 overpass 1003 Ming Mingliang Workers 55 17A3 Riverside Hotel 1002 Ban Jianbin Technician 60 18A3 Riverside

number, order time or quantity range.Iv. Use of Design4.1 Data Dictionary Design1 User table (userInfo): User login is required user name and password, so the user data table must contain user name (UserName), password (userpwd) Two information, there are some other user information, such as user rights (administrator or non-administrator). From the functional database table design as shown in table 1.Tabl

Tags: blog http os using IO strong ar for fileDatabase design Specifications 1. IntroductionDatabase design refers to a given application environment, constructs the optimal database pattern, establishes the database and other application system, enables it to effectively store the data, satisfies the various user's de

I. Concept of database designDatabase design is the process of planning and structuring the relationship between the data entities in the database and the data entities.Two. Importance of database designIf a database does not have a good

Why database design? Here we have two questions: Is it necessary to design a Mouch? Do I need to design a building? The conclusion is: when the database is complex (such as large data volumes, large tables, and complex business relationships), we need to

Tags: style blog http os using IO strong ar forDatabase design Specifications 1. IntroductionDatabase design refers to a given application environment, constructs the optimal database pattern, establishes the database and other application system, enables it to effectively store the data, satisfies the various user's d

oracle| Design | data | database | Database design Requirements Prerequisite: Data changes 1~2 times per year, software estimated life cycle 50 Practice Environment: Oracle Spatial Glossary: spatio-temporal objects, snapshots Spatio-Temporal object: The space and time range and its attribute information that a geo

period, called "Space-Time object." Similarly, spatiotemporal objects can be extended to three-dimensional objects in the time dimension, that is, four-dimensional objects. The attribute information of spatio-temporal objects is a two-dimensional table. Snapshot: The spatial range and attribute information occupied by a geographical target at a particular time, or the spatial range and corresponding attribute information occupied by space-time object at a particular time. For example, a map of

as a tableUse the partition key sparingly, and cross-partition queries may be less efficient.It is recommended to use physical tables to manage big data.6. Try to separate the hot and cold data and reduce the width of the table.Reduce disk IO to ensure memory cache hit rate for hot dataUse caching more efficiently to avoid reading useless cold dataPlace the columns that you frequently use together in a table.7. Prohibit the creation of reservation fi

I believe that we read this article seriously will know how to design a high-level database!!! Recently a friend has been asking why I need a normative database design? Professional analysis: Because in the actual project development, if the system data storage is large, the desi