SQL Server的隐藏特性

SQL Server有哪些隐藏特性?

例如，没有文档的系统存储过程，做一些非常有用但没有足够文档的事情的技巧?

答案

感谢大家的精彩回答!

存储过程

sp_msforeachtable: Runs a command with '?' replaced with each table name (v6.5 and up) sp_msforeachdb: Runs a command with '?' replaced with each database name (v7 and up) sp_who2: just like sp_who, but with a lot more info for troubleshooting blocks (v7 and up) sp_helptext: If you want the code of a stored procedure, view & UDF sp_tables: return a list of all tables and views of database in scope. sp_stored_procedures: return a list of all stored procedures xp_sscanf: Reads data from the string into the argument locations specified by each format argument. xp_fixeddrives:: Find the fixed drive with largest free space sp_help: If you want to know the table structure, indexes and constraints of a table. Also views and UDFs. Shortcut is Alt+F1

片段

Returning rows in random order All database User Objects by Last Modified Date Return Date Only Find records which date falls somewhere inside the current week. Find records which date occurred last week. Returns the date for the beginning of the current week. Returns the date for the beginning of last week. See the text of a procedure that has been deployed to a server Drop all connections to the database Table Checksum Row Checksum Drop all the procedures in a database Re-map the login Ids correctly after restore Call Stored Procedures from an INSERT statement Find Procedures By Keyword Drop all the procedures in a database Query the transaction log for a database programmatically.

功能

哈希字节（） EncryptByKey 枢轴命令

Misc

Connection String extras TableDiff.exe Triggers for Logon Events (New in Service Pack 2) Boosting performance with persisted-computed-columns (pcc). DEFAULT_SCHEMA setting in sys.database_principles Forced Parameterization Vardecimal Storage Format Figuring out the most popular queries in seconds Scalable Shared Databases Table/Stored Procedure Filter feature in SQL Management Studio Trace flags Number after a GO repeats the batch Security using schemas Encryption using built in encryption functions, views and base tables with triggers

当前回答

TableDiff.exe

表差异工具允许您发现和协调源表和目标表或视图之间的差异。Tablediff实用程序可以报告模式和数据的差异。tablediff最受欢迎的特性是它可以生成一个脚本，您可以在目标上运行该脚本，以协调表之间的差异。

Link

2008-09-23 16:09:25

其他回答

本周我学到的最令人惊讶的事情是在ORDER By子句中使用CASE语句。例如:

declare @orderby varchar(10)

set @orderby = 'NAME'

select * 
    from Users
    ORDER BY 
        CASE @orderby
            WHEN 'NAME' THEN LastName
            WHEN 'EMAIL' THEN EmailAddress
        END

2008-11-26 15:43:39

行构造函数

您可以用一个插入语句插入多行数据。

INSERT INTO Colors (id, Color)
VALUES (1, 'Red'),
       (2, 'Blue'),
       (3, 'Green'),
       (4, 'Yellow')

2009-12-18 19:39:27

在SQL Server Management Studio (SSMS)中，您可以在对象资源管理器中突出显示对象名称，并按Ctrl-C将该名称复制到剪贴板。

不需要按F2或右键，重命名对象复制名称。

您还可以将对象从对象资源管理器拖放到查询窗口中。

2009-12-18 19:36:19

SQLCMD

如果您有脚本需要反复运行，但必须更改轻微的细节，那么在sqlcmd模式下运行ssms非常棒。sqlcmd命令行也非常漂亮。

我最喜欢的特点是:

你需要设置变量。适当的变量，不需要跳过sp_exec圈您可以一个接一个地运行多个脚本这些脚本可以引用“外部”脚本中的变量

Red Gate的Simpletalk没有再滔滔滔滔地说什么，而是对sqlcmd - sqlcmd工作台做了一个很棒的总结。Donabel Santos也有一些很棒的SQLCMD示例。

2009-06-23 09:53:23

空间结果选项卡可以用来创建艺术。

在这里输入链接描述http://michaeljswart.com/wp-content/uploads/2010/02/venus.png

2011-03-22 12:35:49

SQL Server的隐藏特性

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