declare @spidlow int, @spidhigh int, @spid int, @sid varbinary(85)

select @spidlow = 0 ,@spidhigh = 32767

if ( @loginame is not NULL AND upper(@loginame) = 'ACTIVE' ) begin

select spid ,status ,loginame=rtrim(loginame) ,hostname ,blk=convert(char(5),blocked) ,dbname= db_name(dbid),cmd from master.dbo.sysprocesses where spid >= @spidlow and spid <= @spidhigh AND upper(cmd) <> 'AWAITING COMMAND'

return (0) end

if (@loginame is not NULL AND upper(@loginame) <> 'ACTIVE' ) begin if (@loginame like '[0-9]%') -- is a spid. begin select @spid = convert(int, @loginame) select spid, status, loginame=rtrim(loginame), hostname,blk = convert(char(5),blocked), dbname=db_name(dbid), cmd from master.dbo.sysprocesses where spid = @spid end else begin select @sid = suser_sid(@loginame) if (@sid is null) begin raiserror(15007,-1,-1,@loginame) return (1) end select spid, status, loginame=rtrim(loginame), hostname ,blk=convert(char(5),blocked), dbname=db_name(dbid), cmd from master.dbo.sysprocesses where sid = @sid end return (0) end

/* loginame arg is null */ select spid, status, loginame=rtrim(loginame), hostname, blk=convert(char(5),blocked), dbname=db_name(dbid), cmd from master.dbo.sysprocesses where spid >= @spidlow and spid <= @spidhigh

return (0) -- sp_who

如何删除日志空间? 前几天也碰到日志文件过大的问题，数据库实际大小为600M, 日志文件实际大小为33M, 但日志文件占用空间为2.8G!!! 试了多种方式，SHIRNK DATABASE， TRUNCATE LOG FILE, 都没办法将文件缩小。无论如何，这应该算SQL SERVER的一个BUG吧。

后来找到下面的代码，就可以将日志文件缩小到自己想要的大小了。把代码COPY到查询分析器里，，然后修改其中的3个参数(数据库名，日志文件名，和目标日志文件的大小)，运行即可(我已经用过多次了) ----- SET NOCOUNT ON DECLARE @LogicalFileName sysname, @MaxMinutes INT, @NewSize INT

USE Marias -- 要操作的数据库名 SELECT @LogicalFileName = 'Marias_log', -- 日志文件名 @MaxMinutes = 10, -- Limit on time allowed to wrap log. @NewSize = 100 -- 你想设定的日志文件的大小(M)

-- Setup / initialize DECLARE @OriginalSize int SELECT @OriginalSize = size FROM sysfiles WHERE name = @LogicalFileName SELECT 'Original Size of ' + db_name() + ' LOG is ' + CONVERT(VARCHAR(30),@OriginalSize) + ' 8K pages or ' + CONVERT(VARCHAR(30),(@OriginalSize*8/1024)) + 'MB' FROM sysfiles WHERE name = @LogicalFileName CREATE TABLE DummyTrans (DummyColumn char (8000) not null)

DECLARE @Counter INT, @StartTime DATETIME, @TruncLog VARCHAR(255) SELECT @StartTime = GETDATE(), @TruncLog = 'BACKUP LOG ' + db_name() + ' WITH TRUNCATE_ONLY'

DBCC SHRINKFILE (@LogicalFileName, @NewSize) EXEC (@TruncLog) -- Wrap the log if necessary. WHILE @MaxMinutes > DATEDIFF (mi, @StartTime, GETDATE()) -- time has not expired AND @OriginalSize = (SELECT size FROM sysfiles WHERE name = @LogicalFileName) AND (@OriginalSize * 8 /1024) > @NewSize BEGIN -- Outer loop. SELECT @Counter = 0 WHILE ((@Counter < @OriginalSize / 16) AND (@Counter < 50000)) BEGIN -- update INSERT DummyTrans valueS ('Fill Log') DELETE DummyTrans SELECT @Counter = @Counter + 1 END EXEC (@TruncLog) END SELECT 'Final Size of ' + db_name() + ' LOG is ' + CONVERT(VARCHAR(30),size) + ' 8K pages or ' + CONVERT(VARCHAR(30),(size*8/1024)) + 'MB' FROM sysfiles WHERE name = @LogicalFileName DROP TABLE DummyTrans SET NOCOUNT OFF

If the direction is IN (/I) then the data from the specified 'file' is

copied into SQL Server, replacing the existing text or image value. If the direction is OUT (/O) then the text or image value is copied from SQL Server into the specified 'file', replacing any existing file.

TEXTCOPY [/S ][sqlserver]] [/U [login]] [/P ][password]] [/D ][database]] [/T table] [/C column] [/W"where clause"] [/F file] [{/I | /O}] [/K chunksize] [/Z] [/?]

/S sqlserver The SQL Server to connect to. If 'sqlserver' is n ot specified, the local SQL Server is used. /U login The login to connect with. If 'login' is not spec ified, a trusted connection will be used. /P password The password for 'login'. If 'password' is not specified, a NULL password will be used. /D database The database that contains the table with the tex t or image data. If 'database' is not specified, the d efault database of 'login' is used. /T table The table that contains the text or image value.

/C column The text or image column of 'table'. /W "where clause" A complete where clause (including the WHERE keyw ord) that specifies a single row of 'table'. /F file The file name. /I Copy text or image value into SQL Server from 'fi le'. /O Copy text or image value out of SQL Server into ' file'. /K chunksize Size of the data transfer buffer in bytes. Minimu m value is 1024 bytes, default value is 4096 bytes.

/Z Display debug information while running. /? Display this usage information and exit.

You will be prompted for any required options you did not specify.

为此, 可写一个存储过程,调用这个命令 CREATE PROCEDURE sp_textcopy ( @srvname varchar (30), @login varchar (30), @password varchar (30), @dbname varchar (30), @tbname varchar (30), @colname varchar (30), @filename varchar (30), @whereclause varchar (40), @direction char(1)) AS DECLARE @exec_str varchar (255) SELECT @exec_str = 'textcopy /S ' + @srvname + ' /U ' + @login + ' /P ' + @password + ' /D ' + @dbname + ' /T ' + @tbname + ' /C ' + @colname + ' /W "' + @whereclause + '" /F ' + @filename + ' /' + @direction EXEC master..xp_cmdshell @exec_str

下面是一个拷贝图像到SQL Server的pubs数据库的例子, 表名pub_info, 字段名 logo，图像文件名picture.bmp，保存到pub_id='0736'记录 sp_textcopy @srvn ame = 'ServerName', @login = 'Login', @password = 'Password', @dbname = 'pubs', @tbname = 'pub_info', @colname = 'logo', @filename = 'c:\picture.bmp', @whereclause = " WHERE pub_id='0736' ", @direction = 'I'