search
HomeDatabaseMysql TutorialMSSQL ISQL命令详解

MSSQL有简单方便又高效的管理界面,还用ISQL干什么?什么是ISQL工具?ISQL是用于交互式执行Transact-SQL语句和脚本的数据库工具,ISQL同微软的OSQL是差不多的工具。

比如做一些高级的配置,还比如在客户端或远程执行数据库操作等工作时,ISQL是很方便的。比如入侵一台有SQL服务的主机,入侵SQL Server后都能干什么?最好的工具的就是ISQL了。

不 光是微软的SQL支持ISQL,还有Sybase的Enterprise版本的数据库也支持,Sybase的Unix版本,ISQL等工具更是有用武之地 了。ISQL依赖DB-Library API的应用程序不支持 SQL Server 2000 版的某些功能。例如,isql无法访问用ntext数据类型定义的列,并截断任何超过255字节的char、varchar、nchar 或 nvarchar 列。它也无法检索XML 文档形式的结果。除了isql中的这些限制外,osql和isql 支持相同的功能。

isql命令的参数详解:
isql [-U login id] [-P password] [-S server]
isql [-?] | [-L] | [
{ {-U login_id [-P password]} | -E }
[-S server] [-H hostname] [-d use database name]
[-l time_out] [-t time_out] [-h headers]
[-s col_separator] [-w column_width] [-a packet_size]
[-e] [-x max_text_size] [-c cmd_end] [-q "query"] [-Q "query"]
[-n] [-m error_level] [-r {0 | 1}]
[-i input file] [-o output file] [-p] [-b] [-O] ]

所有参数要区分大小写,在使用尤其要注意。
-?显示 isql 开关的语法摘要。
-L列出在本地配置的服务器和在网络上广播的服务器的名称。
-U login_id用户登录 ID。登录 ID 区分大小写。
-P password 是用户指定的密码。如果未使用-P 选项,isql 将提示输入密码。如果在命令提示的末尾使用 -P 选项而不带密码,isql 使用默认密码NULL)。密码区分大小写。
-S server_name 指定要连接到的 SQL Server 默认实例。如果未指定服务器,isql 将连接 到本地计算机上的 SQL Server 默认实例。如果要在网络上从远程计算机执行 isql,则需要此选项。
-H hostname 是使用的客户端的主机名称。工作站名称存储在 sysprocesses.hostname 中并由 sp_who 显示。如果未指定,则采用当前计算机名称。用这个可以欺骗SQL Server中进程信息中显示的主机名。
-d use database name,用于指定使用数据库名。
-i input file,用于指定装载的SQL语句文件。当你不想输入太多SQL语句时,你可以写好在一个文件,用这个参数,作为来执行。

以上这些基本上足够用了,下面以服务器ABC为例,用户名sa,密码为了空,用ISQL登录数据库DB:
ISQL -U sa -P -S ABC -d DB
连接成功的话,在“1>”后面输入SQL语句,回车,第二行输入go回车,就执行了上一句SQL语句。
SQL语句可以分多行输入,直到你执行“go”提交后才执行SQL语句。
quit可以退出当前交互式命行模式。
Statement
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
How do you alter a table in MySQL using the ALTER TABLE statement?How do you alter a table in MySQL using the ALTER TABLE statement?Mar 19, 2025 pm 03:51 PM

The article discusses using MySQL's ALTER TABLE statement to modify tables, including adding/dropping columns, renaming tables/columns, and changing column data types.

How do I configure SSL/TLS encryption for MySQL connections?How do I configure SSL/TLS encryption for MySQL connections?Mar 18, 2025 pm 12:01 PM

Article discusses configuring SSL/TLS encryption for MySQL, including certificate generation and verification. Main issue is using self-signed certificates' security implications.[Character count: 159]

How do you handle large datasets in MySQL?How do you handle large datasets in MySQL?Mar 21, 2025 pm 12:15 PM

Article discusses strategies for handling large datasets in MySQL, including partitioning, sharding, indexing, and query optimization.

What are some popular MySQL GUI tools (e.g., MySQL Workbench, phpMyAdmin)?What are some popular MySQL GUI tools (e.g., MySQL Workbench, phpMyAdmin)?Mar 21, 2025 pm 06:28 PM

Article discusses popular MySQL GUI tools like MySQL Workbench and phpMyAdmin, comparing their features and suitability for beginners and advanced users.[159 characters]

How do you drop a table in MySQL using the DROP TABLE statement?How do you drop a table in MySQL using the DROP TABLE statement?Mar 19, 2025 pm 03:52 PM

The article discusses dropping tables in MySQL using the DROP TABLE statement, emphasizing precautions and risks. It highlights that the action is irreversible without backups, detailing recovery methods and potential production environment hazards.

How do you represent relationships using foreign keys?How do you represent relationships using foreign keys?Mar 19, 2025 pm 03:48 PM

Article discusses using foreign keys to represent relationships in databases, focusing on best practices, data integrity, and common pitfalls to avoid.

How do you create indexes on JSON columns?How do you create indexes on JSON columns?Mar 21, 2025 pm 12:13 PM

The article discusses creating indexes on JSON columns in various databases like PostgreSQL, MySQL, and MongoDB to enhance query performance. It explains the syntax and benefits of indexing specific JSON paths, and lists supported database systems.

How do I secure MySQL against common vulnerabilities (SQL injection, brute-force attacks)?How do I secure MySQL against common vulnerabilities (SQL injection, brute-force attacks)?Mar 18, 2025 pm 12:00 PM

Article discusses securing MySQL against SQL injection and brute-force attacks using prepared statements, input validation, and strong password policies.(159 characters)

See all articles

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
2 weeks agoBy尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. Best Graphic Settings
2 weeks agoBy尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. How to Fix Audio if You Can't Hear Anyone
2 weeks agoBy尊渡假赌尊渡假赌尊渡假赌

Hot Tools

ZendStudio 13.5.1 Mac

ZendStudio 13.5.1 Mac

Powerful PHP integrated development environment

MinGW - Minimalist GNU for Windows

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.

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

VSCode Windows 64-bit Download

VSCode Windows 64-bit Download

A free and powerful IDE editor launched by Microsoft

SAP NetWeaver Server Adapter for Eclipse

SAP NetWeaver Server Adapter for Eclipse

Integrate Eclipse with SAP NetWeaver application server.