oltp database design

After we have cleared up the object relationship, let's proceed to the design of the database. When modeling a database, the relationship between N and N is generally required to include an association table to indicate the relationship between the two. Preliminary estimate, this system needs at least 10 tables, namely: Permission table, user table, Role table, G

1. In the development of a system, must first do the overall system research It is necessary to master the main functional modules of the application system; 2. According to the system function module's row to arrange the suitable personnel to go Carry out detailed business process research work, need the researcher to put The analysis of customer's daily business process arrangement 3. Design Database 4

Label: MongoDb compared to the traditional SQL relational database, the biggest difference lies in their schema design (schema) differences, it is because this level of differences derived from other aspects of the difference. we can simply think that the relational databaseconsists of three hierarchical concepts of database, table and record, while in constructi

Web rights design, do the right now there are three main ways to implementFirst Type: manual implementationConfigure 2 interceptors, one is to intercept whether to login, one is to intercept the URL permissions, through the role of the Permissions table configuration, the path of the permission URL and access to the URL of the resource to matchThe second type: spring-security implementation, heavy, not recommendedChapter III: Shiro, currently spring h

As a data container, the database not onlyProgramPerformance has a great impact on application expansion. therefore, for applications, a well-designed database is very important. how can we design a database with good performance and support for expansion? This is a question that we all need to explore. there are many

Atitit. database-the difference between catalog and schema design and the actual use of obtaining all database tables in the database java jdbc p. atitit. database ----- differences between catalog and schema design and how to obt

Three major database design paradigms and three database paradigms In order to establish a database with low redundancy and reasonable structure, certain rules must be followed when designing the database. In relational databases, such a rule is called a paradigm. The parad

Mysql database sharding application scenarios and design methods, mysql database sharding Many of my friends asked me in the Forum and in the message area when mysql was required to perform database/table sharding and what design method was the best choice. Based on these qu

The following content is excerpted from database solutions. Second Edition Key success factors in Database Design: The following guidelines are important for successful Database Design: · Communicate with users as much as possible · Use a structured methodology throughout th

schema design of database table with tree-shaped structure In the process of programming, we often use the tree structure to characterize the relationship of some data, such as Enterprise's subordinate departments, column structure, commodity classification and so on, usually, these tree-like structures need to use the database to complete the persistence. Howev

Tags: define database Security buffer software development detailed logic by cost name1 Introduction 1.1 Purpose of writingExplain the purpose of compiling this database design manual and indicate the intended audience.1.2 BackgroundDescription A Describe the name of the database to be developed and the name of the sof

Design and Implementation of multi-user permission Control for Web application systems-database design [2]: multi-user permission Control To build a Web permission Configuration System, you need the following five data tables: Personnel table, group table, page table, directory table, and Operation permission table. The IDS used in each data table are the IDs of

fields, instead of translating the fields through the relational query between tables in the database. • Often see some startling design: Create a bitmap index on some low base fields (such as sex, marital status) for tables that require frequent DML (INSERT,UPDATE,DELETE) operations. Bitmap indexing is a good thing, but it is useful, and in OLTP systems, bitma

Relationship Type: Mysql, Oracle non-relational: Mongodb, Redis Database Design Reduces data redundancy, avoids data maintenance anomalies, saves storage space, and efficiently accesses Design Steps Requirements Analysis: What the data is, what attributes it has, the characteristics of the data and attributes (storage features), and the lifecycle of the data Lo

dynamic statement caching. If you need to use input variables in a complex query workload, consider using the REOPT (ALWAYS) BIND option. When the input DB2 Performance Tuning variable value is known, the reopt bind option delays statement compilation from PREPARE to OPEN or during execution. The variable value is passed to the SQL Compiler, so that the optimizer can use these benefits to calculate a more accurate selection evaluation. REOPT (ALWAYS) indicates that all execution statements shou

Label:The establishment of a master-slave database is generally based on the following three considerations:1. Disaster recovery: The repository is offsite, the main library does not exist, the repository can be immediately taken over, no restoration time;2. Load balancing: The main library to do additions and deletions, prepare the library to do queries, so many query services do not occupy the main library resources;3. Data centralization and distri

Data Center reconstruction-Database Design (2), Data Center reconstruction-Database After completing the database requirements analysis, erdiagram, and relational model phases of the data room charging system, we should design the databa