Read LFD(log ) file SQLserver 2008

jojoba2011

Hi, How can i read SQL Database 2008 LDF (Log) file programmatically (**`with T-SQL OR C#`** ). Its very Important for me. Plz Help

Lost User

The format isn't publicly available. Why do you need them?

Bastard Programmer from Hell :suss:

jojoba2011

I wanna to check the action placed on the database at different times and dates.(when insert occured in tblName or what palce for data in Update Statement OR ...)

Lost User

If you want to read the log file, you'll have to contact Microsoft for a license. What you want could be easily achieved using a trace, logging it's results. To a textfile or some other database. Google for "Sql Trace" and you should find some interesting results, even from CodeProject :)

Bastard Programmer from Hell :suss:

jojoba2011

thanks for solution. but it wont give me that when and what for example insert/Delete/Update/Select in/from tblName. I wanna something log like this.

Mycroft Holmes

To do this you need to implement an AUDITING strategy, this generally involves triggers (spit) and an audit table. Do some research on database Auditing.

Never underestimate the power of human stupidity RAH

Lost User

jojoba2011 wrote:

but it wont give me that when and what for example

When, what, and even who are included.

Bastard Programmer from Hell :suss:

Lost User

Mycroft Holmes wrote:

this generally involves triggers

Cool suggestion :cool:

Bastard Programmer from Hell :suss:

jojoba2011

Really thanks for all your Solutions! but i have sqlexpress and this feature isnot active in Express 2008! What can i do then?

Lost User

Creating a trace is also possible for Sql Express. Google Harder :)

Bastard Programmer from Hell :suss:

jojoba2011

Hi, but trace can only catch the Error not the work i wanna.

JohnPayton

You can't always expect a solution to your problem to be handed to you. Google is one of the best resources for finding answers to programming questions. If you don't get the answer you are looking for, restructure your Google key words until you get an answer that will work for you. Basically it's the best way to learn anyway, by doing it yourself.

Lost User

You're right. A trace logs all actions. I'm not sure why you keep insisting that it won't work.

Bastard Programmer from Hell :suss:

jojoba2011

thanks for Solution! is it posssible for you to give me small Example on how to use trace for all action.

Lost User

There are quite some examples on the internet; some are based on Sql-statements, others on SMO. It's your turn to do some research :)

Bastard Programmer from Hell :suss:

jojoba2011

I know that i should do the rest of work but i am little week in Googling.I didnt find any result that can give me the way.plz give me the link or Exmaple. Plz thanks

Lost User

Two options; Using code[^], and using SQL[^].

Bastard Programmer from Hell :suss:

jojoba2011

Thanks for reply! I have create App. and trace everything in SQL but I cannot trace SP and ... that will call from C#. I mean when i call SP in C# it doesnt trace. //را یکبار اجرا نمایید SP این trace ابتدا باید برای فعال کردن declare @TraceId int -- create the trace exec sp_trace_create @TraceId output, 0, N'C:\Temp\OurDemoTrace' -- set event and columns to trace exec sp_trace_setevent @TraceId, 12, 1, 1 exec sp_trace_setevent @TraceId, 12, 6, 1 exec sp_trace_setevent @TraceId, 13, 1, 1 exec sp_trace_setevent @TraceId, 13, 6, 1 -- start the trace exec sp_trace_setstatus @TraceId, 1 -- check status for our trace select value from fn_trace_getinfo(@TraceId) where property in (2, 5) go

sb.AppendLine("\nEventClass: " + ts.GetString(ts.GetOrdinal("EventClass")));
sb.AppendLine("NTUserName: " + ts.GetString(ts.GetOrdinal("NTUserName")));
sb.AppendLine("Command : " + ts.GetString(ts.GetOrdinal("TextData")));

Lost User

jojoba2011 wrote:

and trace everything in SQL but I cannot trace SP and ... that will call from C#.
I mean when i call SP in C# it doesnt trace.

Not quite everything; stored procedures have their own trave_event, specifically SP:StmtStarting (44) and SP:StmtCompleted (45). A complete list of events can be found here[^].

Bastard Programmer from Hell :suss:

jojoba2011

thanks a lot Eddy Vluggen. Your really an export in SQL. I have use this for SP:

declare @TraceId int
-- create the trace
exec sp_trace_create @TraceId output, 0, N'C:\Temp\SQLLog'
-- set event and columns to trace
exec sp_trace_setevent @TraceId, 12, 1, 1
exec sp_trace_setevent @TraceId, 12, 6, 1
exec sp_trace_setevent @TraceId, 13, 1, 1
exec sp_trace_setevent @TraceId, 13, 6, 1
exec sp_trace_setevent @TraceId, 12, 13, 1
exec sp_trace_setevent @TraceId, 12, 10, 1
exec sp_trace_setevent @TraceId, 12, 13, 1
exec sp_trace_setevent @TraceId, 12, 14, 1
exec sp_trace_setevent @TraceId, 12, 15, 1
exec sp_trace_setevent @TraceId, 13, 10, 1
exec sp_trace_setevent @TraceId, 13, 13, 1
exec sp_trace_setevent @TraceId, 13, 14, 1
exec sp_trace_setevent @TraceId, 13, 15, 1
exec sp_trace_setevent @TraceId, 12, 35, 1
exec sp_trace_setevent @TraceId, 13, 35, 1
exec sp_trace_setevent @TraceId, 44, 10, 1
exec sp_trace_setevent @TraceId, 44, 13, 1
exec sp_trace_setevent @TraceId, 44, 14, 1
exec sp_trace_setevent @TraceId, 44, 15, 1
exec sp_trace_setevent @TraceId, 44, 1, 1
exec sp_trace_setevent @TraceId, 44, 6, 1
exec sp_trace_setevent @TraceId, 44, 35, 1
exec sp_trace_setevent @TraceId, 45, 35, 1
exec sp_trace_setevent @TraceId, 45, 10, 1
exec sp_trace_setevent @TraceId, 45, 13, 1
exec sp_trace_setevent @TraceId, 45, 14, 1
exec sp_trace_setevent @TraceId, 45, 15, 1
exec sp_trace_setevent @TraceId, 45, 1, 1
exec sp_trace_setevent @TraceId, 45, 6, 1

        -- start the trace
        exec sp\_trace\_setstatus @TraceId, 1
        -- check status for our trace
        select value from fn\_trace\_getinfo(@TraceId) where property in (2, 5)
        go

and in C#

sb = new StringBuilder();
sb.AppendLine("\nEventClass: " + ts.GetString(ts.GetOrdinal("EventClass")));
sb.AppendLine("NTUserName: " + ts.GetString(ts.GetOrdinal("NTUserName")));
sb.AppendLine("Command : " + ts.GetString(ts.GetOrdinal("TextData")));