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MQSeries.net Forum Index » WebSphere Message Broker (ACE) Support » Other ideas for counting lines of large file

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Esa
PostPosted: Tue May 13, 2014 11:40 pm    Post subject: Reply with quote

Grand Master

Joined: 22 May 2008
Posts: 1387
Location: Finland
rramasu wrote:
Hi esa,

Could you provide the peices of code to count the lines from BLOB char


I'm sorry but I don't have the code any more. But the basic idea must have been to use an ESQL shared variable for counting the rows. No need for atomic blocks because the flow should run with no additional instances.

You cannot count lines of a BLOB, by the way. You must always parse the message somehow. A BLOB is just a sequence of bytes with no structure.It has no concept of 'lines' or 'rows'.
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Simbu
PostPosted: Wed May 14, 2014 2:17 am    Post subject: Reply with quote

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Joined: 17 Jun 2011
Posts: 289
Location: Tamil Nadu, India
Count the number of X'0d0a' or X'0a' in the BLOB. It will give you the number of lines in the BLOB.
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Esa
PostPosted: Wed May 14, 2014 2:46 am    Post subject: Reply with quote

Grand Master

Joined: 22 May 2008
Posts: 1387
Location: Finland
That's correct.

My example code that rramasu requested counted the number of records, which may not be the same thing.

But if counting lines is what is required then counting linefeeds should do fine.
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