上面谈了几个类的 封装 ,这次我们讲讲使用的方式。 在实际过程中,我们怎么就能说明我们少了代码的编写呢? 例如我们需要一个类实现某个表的 操作 ,我们只需要继承与我们的Base类就能实现了。 using System;using System.Collections.Generic;using System
上面谈了几个类的封装,这次我们讲讲使用的方式。
在实际过程中,我们怎么就能说明我们少了代码的编写呢?
例如我们需要一个类实现某个表的操作,我们只需要继承与我们的Base类就能实现了。
using System; using System.Collections.Generic; using System.Linq; using System.Text; using NOAS.PublicOpinionMonitor.Access.Common; using NOAS.PublicOpinionMonitor.ENTITY; namespace NOAS.PublicOpinionMonitor.Access { public class ProxyDAL : AccessBase<t_po_monitor_proxy> { public ProxyDAL() : base(strTableName:"t_po_monitor_proxy",ColumsName:@" [monitorid] ,[monitor_name] ,[tkwid] ,[monitor_stardate] ,[monitor_enddate] ,[monitor_datetype] ,[monitor_interval] ,[data_begindate] ,[data_enddate] ,[exec_datetime] ,[monito_days] ,[updatedate] ,[status]") { } public List<t_po_monitor_proxy> getAllMonitorProxy() { return getListByWhere(string.Empty); } } } </t_po_monitor_proxy></t_po_monitor_proxy>我坚持的东西是,自己的事情自己做。所以一般在做底层的架构涉的时候,每个类只能操作自己对应的表。这样让我们的代码也会更加的清晰。
在业务层的使用过程中,就更加简单了。
using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace NOAS.PublicOpinionMonitor.BIZ { public class ProxyBLL { public int addMonitorProxy(ENTITY.t_po_monitor_proxy proxyEntity) { new NOAS.PublicOpinionMonitor.Access.ProxyDAL().addEntity(proxyEntity); return proxyEntity.mproxyid; } public int updateMonitorProxy(ENTITY.t_po_monitor_proxy proxyEntity) { new NOAS.PublicOpinionMonitor.Access.ProxyDAL().updateEntity(proxyEntity); return proxyEntity.mproxyid; } } }
从这里也让我更加的喜欢去设计和架构东西。架构让程序编程更美。多想,多做,多看。让我们的代码变得更加清晰。
坚决不做码农,我们是攻城师。

The main role of MySQL in web applications is to store and manage data. 1.MySQL efficiently processes user information, product catalogs, transaction records and other data. 2. Through SQL query, developers can extract information from the database to generate dynamic content. 3.MySQL works based on the client-server model to ensure acceptable query speed.

The steps to build a MySQL database include: 1. Create a database and table, 2. Insert data, and 3. Conduct queries. First, use the CREATEDATABASE and CREATETABLE statements to create the database and table, then use the INSERTINTO statement to insert the data, and finally use the SELECT statement to query the data.

MySQL is suitable for beginners because it is easy to use and powerful. 1.MySQL is a relational database, and uses SQL for CRUD operations. 2. It is simple to install and requires the root user password to be configured. 3. Use INSERT, UPDATE, DELETE, and SELECT to perform data operations. 4. ORDERBY, WHERE and JOIN can be used for complex queries. 5. Debugging requires checking the syntax and use EXPLAIN to analyze the query. 6. Optimization suggestions include using indexes, choosing the right data type and good programming habits.

MySQL is suitable for beginners because: 1) easy to install and configure, 2) rich learning resources, 3) intuitive SQL syntax, 4) powerful tool support. Nevertheless, beginners need to overcome challenges such as database design, query optimization, security management, and data backup.

Yes,SQLisaprogramminglanguagespecializedfordatamanagement.1)It'sdeclarative,focusingonwhattoachieveratherthanhow.2)SQLisessentialforquerying,inserting,updating,anddeletingdatainrelationaldatabases.3)Whileuser-friendly,itrequiresoptimizationtoavoidper

ACID attributes include atomicity, consistency, isolation and durability, and are the cornerstone of database design. 1. Atomicity ensures that the transaction is either completely successful or completely failed. 2. Consistency ensures that the database remains consistent before and after a transaction. 3. Isolation ensures that transactions do not interfere with each other. 4. Persistence ensures that data is permanently saved after transaction submission.

MySQL is not only a database management system (DBMS) but also closely related to programming languages. 1) As a DBMS, MySQL is used to store, organize and retrieve data, and optimizing indexes can improve query performance. 2) Combining SQL with programming languages, embedded in Python, using ORM tools such as SQLAlchemy can simplify operations. 3) Performance optimization includes indexing, querying, caching, library and table division and transaction management.

MySQL uses SQL commands to manage data. 1. Basic commands include SELECT, INSERT, UPDATE and DELETE. 2. Advanced usage involves JOIN, subquery and aggregate functions. 3. Common errors include syntax, logic and performance issues. 4. Optimization tips include using indexes, avoiding SELECT* and using LIMIT.


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

Safe Exam Browser
Safe Exam Browser is a secure browser environment for taking online exams securely. This software turns any computer into a secure workstation. It controls access to any utility and prevents students from using unauthorized resources.

Notepad++7.3.1
Easy-to-use and free code editor

MinGW - Minimalist GNU for Windows
This project is in the process of being migrated to osdn.net/projects/mingw, you can continue to follow us there. MinGW: A native Windows port of the GNU Compiler Collection (GCC), freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All MinGW software can run on 64-bit Windows platforms.

DVWA
Damn Vulnerable Web App (DVWA) is a PHP/MySQL web application that is very vulnerable. Its main goals are to be an aid for security professionals to test their skills and tools in a legal environment, to help web developers better understand the process of securing web applications, and to help teachers/students teach/learn in a classroom environment Web application security. The goal of DVWA is to practice some of the most common web vulnerabilities through a simple and straightforward interface, with varying degrees of difficulty. Please note that this software

PhpStorm Mac version
The latest (2018.2.1) professional PHP integrated development tool