Sybase Current Running SQL

1.简单办法
isql>SP_who2 找出spid

isql>select * from master..sysprocesses 找出正在运行的sybase server进程
isql>select SPID,SQLText from master..monProcessSQLText  找出SQL Text

2. monitor系统表
mon表中有两个表对于找出正在执行的SQL很有帮助： monProcessSQLText and monSysSQLText.

monProcessSQLText  shows currently executing SQL
monSysSQLText   shows recent, completed SQL
monSysStatement   More information on completed SQL statements

例子
select * into #sqltext from monSysSQLText
select * from #sqltext where SQLText like '%pt_sample%'
结果
SPID KPID ServerUserID BatchID  SequenceInBatch SQLText
26 1900573 1 27 1 'select * from pt_sample s  pt_tx t where t.id = s.id'

注意，mon表中的数据只能被select一次，ASE假设你只需要查看它一次，第二次select只会返回之后的数据。如果你要反复查看，那么把它select into到一个临时表中。

更详细的信息
SPID,KPID,DBID,ProcedureID,PlanID,BatchID,ContextID,LineNumber,CpuTime,WaitTime,MemUsageKB,PhysicalReads, LogicalReads,PagesModified,PacketsSent,PacketsReceived,NetworkPacketSize, PlansAltered,RowsAffected,ErrorStatus,HashKey,SsqlId,StartTime,EndTime

25, 1900573,1,1280004560,30,12,2,0,0,0,684,0,0,0,0,0,2048,0,0,0,0,0,2008-11-15 10:03:14.793,2008-11-15 10:03:14.793
我们得到了：
    Number of logical I/Os
    Number of physical I/Os
    Number of network packets sent/received
    Number of milliseconds of ‘waiting time’ during statement execution
    Start time & end time of execution
    
    

3. Trace
我们可以将当前session中所有的SQL都输出到一个文本文件中。
isql>Set tracefile FILENAME [for spid]
isql>set tracefile off [for spid]

例子
isql>Set tracefile ‘/opt/Sybase/tracefiles/2008 1101.trc12’ for 12
如果不指定server process id, sybase系统将只记录当前session的SQL。
记录的信息包括：
SQL Text
query plans (showplan output),
statistics (statistics io output),
show_sqltext (below!),
set option show,
dbcc traceon (100) output.

执行Set tracefile 命令必须有sa or sso role， 并且grant了“set tracefile” permission



4. set show_sqltext
You can print the SQL text for ad-hoc queries, stored procedures, cursors, and dynamic prepared statements using set show_sqltext.

Before you enable show_sqltext, you must first use dbcc (dbcc traceon(3604)) to instruct the server to send the output to your terminal instead of to standard output (i.e. to the console of the session that started up the ASE instance).
The syntax for set show_sqltext is:
set show_sqltext {on | off}