sqlServer 数据库常用连接字符串 用户名和密码验证的方式去连接到数据库服务器 add name="conStr" connectionString="Data Source=服务器名;Initial Catalog=数据库名; User Id=用户名;Password=密码"/ add name="conStr" connectionString="Server=服务器名
sqlServer 数据库常用连接字符串
用户名和密码验证的方式去连接到数据库服务器
Windows验证的方式去连接到数据库服务器
常用的属性:
服务器
Data Source
Server
数据库
Initial Catalog
database
用户名
User Id
uid
密码
Password
pwd
启用连接池
pooling=true(默认值)
最小连接数量
min pool size=1;
最大连接数量
max pool size=2
重置连接池
connection reset=true
身份验证方式
Integrated Security
当为false时,将在连接中指定用户ID和密码。
当为true时,将使用当前的Windows帐户凭据进行身份验证。
可识别的值为true、false、yes、no以及与true等效的sspi。
信任连接
1)web.config中Trusted_Connection=true改为Trusted_Connection=false可以消除如下错误:
"用户
'NT AUTHORITY\NETWORK SERVICE' 登录失败。"
(2)Trusted_Connection
当为 false 时,将在连接中指定用户 ID 和密码。当为 true 时,将使用当前的 Windows 帐户凭据进行身份验证。
可识别的值为 true、false、yes、no 以及与 true 等效的 sspi(强烈推荐)。
(3)当在WEB.CONFIG使用Trusted_Connection=true时,SERVER DATABASE已设置为用信任连接了.
加密
Encrypt = yes

InnoDBBufferPool reduces disk I/O by caching data and indexing pages, improving database performance. Its working principle includes: 1. Data reading: Read data from BufferPool; 2. Data writing: After modifying the data, write to BufferPool and refresh it to disk regularly; 3. Cache management: Use the LRU algorithm to manage cache pages; 4. Reading mechanism: Load adjacent data pages in advance. By sizing the BufferPool and using multiple instances, database performance can be optimized.

Compared with other programming languages, MySQL is mainly used to store and manage data, while other languages such as Python, Java, and C are used for logical processing and application development. MySQL is known for its high performance, scalability and cross-platform support, suitable for data management needs, while other languages have advantages in their respective fields such as data analytics, enterprise applications, and system programming.

MySQL is worth learning because it is a powerful open source database management system suitable for data storage, management and analysis. 1) MySQL is a relational database that uses SQL to operate data and is suitable for structured data management. 2) The SQL language is the key to interacting with MySQL and supports CRUD operations. 3) The working principle of MySQL includes client/server architecture, storage engine and query optimizer. 4) Basic usage includes creating databases and tables, and advanced usage involves joining tables using JOIN. 5) Common errors include syntax errors and permission issues, and debugging skills include checking syntax and using EXPLAIN commands. 6) Performance optimization involves the use of indexes, optimization of SQL statements and regular maintenance of databases.

MySQL is suitable for beginners to learn database skills. 1. Install MySQL server and client tools. 2. Understand basic SQL queries, such as SELECT. 3. Master data operations: create tables, insert, update, and delete data. 4. Learn advanced skills: subquery and window functions. 5. Debugging and optimization: Check syntax, use indexes, avoid SELECT*, and use LIMIT.

MySQL efficiently manages structured data through table structure and SQL query, and implements inter-table relationships through foreign keys. 1. Define the data format and type when creating a table. 2. Use foreign keys to establish relationships between tables. 3. Improve performance through indexing and query optimization. 4. Regularly backup and monitor databases to ensure data security and performance optimization.

MySQL is an open source relational database management system that is widely used in Web development. Its key features include: 1. Supports multiple storage engines, such as InnoDB and MyISAM, suitable for different scenarios; 2. Provides master-slave replication functions to facilitate load balancing and data backup; 3. Improve query efficiency through query optimization and index use.

SQL is used to interact with MySQL database to realize data addition, deletion, modification, inspection and database design. 1) SQL performs data operations through SELECT, INSERT, UPDATE, DELETE statements; 2) Use CREATE, ALTER, DROP statements for database design and management; 3) Complex queries and data analysis are implemented through SQL to improve business decision-making efficiency.

The basic operations of MySQL include creating databases, tables, and using SQL to perform CRUD operations on data. 1. Create a database: CREATEDATABASEmy_first_db; 2. Create a table: CREATETABLEbooks(idINTAUTO_INCREMENTPRIMARYKEY, titleVARCHAR(100)NOTNULL, authorVARCHAR(100)NOTNULL, published_yearINT); 3. Insert data: INSERTINTObooks(title, author, published_year)VA


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