Parse a transaction log

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SQL

I want to know, how to read the sql transaction log ( *.ldf file )...

So, I found one procedure... in this site: http://raresql.com/2012/02/01/how-to-recover-modified-records-from-sql-server-part-1/

( I can't put the procedure here, because the code is too big... )

In that site, have a procedure to make this, but I want to know, how and what I need to modify ( I REALLY DO NOT KNOW, SO AM ASKING ), I just want to get the modify values, without generate a UPDATE statement, like in the site..., so, for example, I enter with the LSN numbers in procedure parameter, and, the procedure return for me ( the parsed logrow or something like this... ) a more simple system.... btw, I just want to know, how to make this, because, for me, that procedure is too much complex :(