Atitit.Gui控件and面板----数据库区-mssql 2008 权限 配置 报表查看成员 1. 配置服务器连接权限 1 2. 配置数据库权限 1 3. 设置表格/视图安全性 2 1. 配置服务器连接权限 配置服务器登录--数据库级别的【安全性】-【登录名】-【新建登录名】 角色::public 作
Atitit.Gui控件and面板----数据库区-mssql 2008 权限 配置 报表查看成员
1. 配置服务器连接权限 1
2. 配置数据库权限 1
3. 设置表格/视图安全性 2
1. 配置服务器连接权限
配置服务器登录--数据库级别的【安全性】-【登录名】-【新建登录名】
角色::public
作者:: 老哇的爪子 Attilax 艾龙, EMAIL:1466519819@qq.com
转载请注明来源: http://blog.csdn.net/attilax
2. 配置数据库权限
在【用户映射】选项卡中,如下图所示,勾选需要设置的数据库
用户::userInDb
架构:dbo(默认)...
点击【确认】按钮,完成创建用户的操作
也能数据库>>>属性>>权限设置有些权限...默认only conn 权限.
3. 设置表格/视图安全性
在TestLog数据库的【安全性】-【TestUser】-【属性】-【安全对象】-【添加】-【对象类型】这里有更多关于数据库级别的一些对象类型可以设置。

MySQL uses a GPL license. 1) The GPL license allows the free use, modification and distribution of MySQL, but the modified distribution must comply with GPL. 2) Commercial licenses can avoid public modifications and are suitable for commercial applications that require confidentiality.

The situations when choosing InnoDB instead of MyISAM include: 1) transaction support, 2) high concurrency environment, 3) high data consistency; conversely, the situation when choosing MyISAM includes: 1) mainly read operations, 2) no transaction support is required. InnoDB is suitable for applications that require high data consistency and transaction processing, such as e-commerce platforms, while MyISAM is suitable for read-intensive and transaction-free applications such as blog systems.

In MySQL, the function of foreign keys is to establish the relationship between tables and ensure the consistency and integrity of the data. Foreign keys maintain the effectiveness of data through reference integrity checks and cascading operations. Pay attention to performance optimization and avoid common errors when using them.

There are four main index types in MySQL: B-Tree index, hash index, full-text index and spatial index. 1.B-Tree index is suitable for range query, sorting and grouping, and is suitable for creation on the name column of the employees table. 2. Hash index is suitable for equivalent queries and is suitable for creation on the id column of the hash_table table of the MEMORY storage engine. 3. Full text index is used for text search, suitable for creation on the content column of the articles table. 4. Spatial index is used for geospatial query, suitable for creation on geom columns of locations table.

TocreateanindexinMySQL,usetheCREATEINDEXstatement.1)Forasinglecolumn,use"CREATEINDEXidx_lastnameONemployees(lastname);"2)Foracompositeindex,use"CREATEINDEXidx_nameONemployees(lastname,firstname);"3)Forauniqueindex,use"CREATEU

The main difference between MySQL and SQLite is the design concept and usage scenarios: 1. MySQL is suitable for large applications and enterprise-level solutions, supporting high performance and high concurrency; 2. SQLite is suitable for mobile applications and desktop software, lightweight and easy to embed.

Indexes in MySQL are an ordered structure of one or more columns in a database table, used to speed up data retrieval. 1) Indexes improve query speed by reducing the amount of scanned data. 2) B-Tree index uses a balanced tree structure, which is suitable for range query and sorting. 3) Use CREATEINDEX statements to create indexes, such as CREATEINDEXidx_customer_idONorders(customer_id). 4) Composite indexes can optimize multi-column queries, such as CREATEINDEXidx_customer_orderONorders(customer_id,order_date). 5) Use EXPLAIN to analyze query plans and avoid

Using transactions in MySQL ensures data consistency. 1) Start the transaction through STARTTRANSACTION, and then execute SQL operations and submit it with COMMIT or ROLLBACK. 2) Use SAVEPOINT to set a save point to allow partial rollback. 3) Performance optimization suggestions include shortening transaction time, avoiding large-scale queries and using isolation levels reasonably.


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