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

如果您想删除数据库中的所有过程-

SELECT  IDENTITY ( int, 1, 1 ) id, 
        [name] 
INTO    #tmp 
FROM    sys.procedures 
WHERE   [type]        = 'P' 
    AND is_ms_shipped = 0 

DECLARE @i INT 

SELECT   @i = COUNT( id ) FROM #tmp 
WHILE    @i > 0 
BEGIN 
   DECLARE @name VARCHAR( 100 ) 
   SELECT @name = name FROM #tmp WHERE id = @i 
   EXEC ( 'DROP PROCEDURE ' + @name ) 
   SET @i = @i-1 
END

DROP TABLE #tmp

2008-09-23 16:46:28

其他回答

下面是一些我喜欢的SQL Management Studio隐藏特性。

我喜欢的一点是，如果你在高亮显示信息时按住ALT键，你可以选择柱状信息，而不仅仅是整行。

在SQL Management Studio中，你有预定义的快捷键:

Ctrl+1运行sp_who Ctrl+2运行sp_lock Alt+F1运行sp_help Ctrl+F1运行sp_helptext

因此，如果您在编辑器中突出显示表名并按Alt+F1，它将显示表的结构。

2010-01-08 00:56:15

以下是一些我认为有用但很多人似乎不知道的功能:

sp_tables

返回可以为的对象列表在当前环境下查询。这意味着任何对象都可以出现在FROM子句中，同义词除外对象。

Link

sp_stored_procedures

中存储过程的列表当前环境。

Link

2008-09-23 14:18:59

表/存储过程过滤器是一个半隐藏的特性，非常有用…

在“SQL Server Management Studio对象资源管理器”中，右键单击“表或存储过程”文件夹，选择“筛选器”菜单，然后选择“筛选器设置”，并在“名称包含”行中输入部分名称。

同样地，使用Remove Filter再次查看所有表/存储过程。

2008-09-23 15:49:19

sp_executesql

用于执行字符串中的语句。与Execute一样好，但可以返回参数

2008-10-24 16:21:10

在恢复数据库用于测试或其他用途时非常有用。正确地重新映射登录ID:

EXEC sp_change_users_login 'Auto_Fix', 'Mary', NULL, 'B3r12-36'

2008-09-23 17:56:07

SQL Server的隐藏特性

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