Comments for Nick Gorbikoff - personal blog. http://www.gorbikoff.com Pretend there is some smart tag line here. Wed, 26 Aug 2009 00:52:57 -0700 hourly 1 Comment on Если бы языки програмирования были бы машинами. by кpacoткa http://www.gorbikoff.com/2009/01/28/%d0%b5%d1%81%d0%bb%d0%b8-%d0%b1%d1%8b-%d1%8f%d0%b7%d1%8b%d0%ba%d0%b8-%d0%bf%d1%80%d0%be%d0%b3%d1%80%d0%b0%d0%bc%d0%b8%d1%80%d0%be%d0%b2%d0%b0%d0%bd%d0%b8%d1%8f-%d0%b1%d1%8b%d0%bb%d0%b8-%d0%b1%d1%8b/comment-page-1/#comment-1053 кpacoткa Wed, 26 Aug 2009 00:52:57 +0000 http://www.gorbikoff.com/?p=4#comment-1053 Все-таки действительно нравится мне Ваш блог. Всегда очень интересно читать, включая и эту тему. :) Все-таки действительно нравится мне Ваш блог. Всегда очень интересно читать, включая и эту тему. :)

]]> Comment on How to read & write to a dbf database file from ruby. by Nick Gorbikoff http://www.gorbikoff.com/2009/02/03/how-to-read-and-write-to-dbf-database-file-from-ruby/comment-page-1/#comment-1041 Nick Gorbikoff Fri, 12 Jun 2009 14:59:39 +0000 http://www.gorbikoff.com/2009/02/03/ruby-dbf-database-file-a-working-solution-2/#comment-1041 Rob, email me a sample of your dbf file I will take a look - I haven't dealt with fields like that before - so I'm not sure. To avoid that - on our end - we actually save images on the drive and just store absolute links to each image in the dbf file. Image storage in a db is not usually a good idea. - Makes db bloated pretty quickly - doesn't add search functionality to the db - just slows it down. My email is nick(dot)gorbikoff(at)gmail.com . Cheers, Nick Rob,

email me a sample of your dbf file I will take a look – I haven’t dealt with fields like that before – so I’m not sure. To avoid that – on our end – we actually save images on the drive and just store absolute links to each image in the dbf file. Image storage in a db is not usually a good idea. – Makes db bloated pretty quickly – doesn’t add search functionality to the db – just slows it down. My email is nick(dot)gorbikoff(at)gmail.com .

Cheers,
Nick

]]> Comment on How to read & write to a dbf database file from ruby. by Rob http://www.gorbikoff.com/2009/02/03/how-to-read-and-write-to-dbf-database-file-from-ruby/comment-page-1/#comment-1040 Rob Fri, 12 Jun 2009 03:19:45 +0000 http://www.gorbikoff.com/2009/02/03/ruby-dbf-database-file-a-working-solution-2/#comment-1040 I have a dBase IV DBF that's used to store PNG files: each record consists of two text fields and a binary field with the complete PNG file. (It's used by a graphics compositing tool.) I'm trying to develop a script that will automate adding several PNGs at once to the DB, but I've run into a problem: DBI seems to think each record has only the text fields--e.g. after selecting all records into rs, rs[0][3] is nil. I don't know if this is a problem with Ruby, DBI, or the ODBC dBase driver; similar shortcomings have led me away from Python tools, and I'm beginning to wonder if ANYTHING deals with binary fields in DBFs. I'm curious if you can shed some light on this dilemma. I have a dBase IV DBF that’s used to store PNG files: each record consists of two text fields and a binary field with the complete PNG file. (It’s used by a graphics compositing tool.)

I’m trying to develop a script that will automate adding several PNGs at once to the DB, but I’ve run into a problem: DBI seems to think each record has only the text fields–e.g. after selecting all records into rs, rs[0][3] is nil.

I don’t know if this is a problem with Ruby, DBI, or the ODBC dBase driver; similar shortcomings have led me away from Python tools, and I’m beginning to wonder if ANYTHING deals with binary fields in DBFs. I’m curious if you can shed some light on this dilemma.

]]> Comment on How to read & write to a dbf database file from ruby. by Nick Gorbikoff http://www.gorbikoff.com/2009/02/03/how-to-read-and-write-to-dbf-database-file-from-ruby/comment-page-1/#comment-1039 Nick Gorbikoff Thu, 14 May 2009 14:36:11 +0000 http://www.gorbikoff.com/2009/02/03/ruby-dbf-database-file-a-working-solution-2/#comment-1039 One more update: I went through all my major tables and they all seem to have only 4 datatypes used - I don't know if it's odbc that reads it that way or tables themselves - I don't have a dbase environment to access them, but I only get Char, Numeric, Date and nil. --------- EDIT --------- Ok it looks like that for some other reasons our dBase expert never used logical - he just used Char to store Y & N or T&F. So I can't test it here. Email me your sample dbf and I'll try to take a look. One more update:
I went through all my major tables and they all seem to have only 4 datatypes used – I don’t know if it’s odbc that reads it that way or tables themselves – I don’t have a dbase environment to access them, but I only get Char, Numeric, Date and nil.

———
EDIT
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Ok it looks like that for some other reasons our dBase expert never used logical – he just used Char to store Y & N or T&F. So I can’t test it here. Email me your sample dbf and I’ll try to take a look.

]]> Comment on How to read & write to a dbf database file from ruby. by Nick Gorbikoff http://www.gorbikoff.com/2009/02/03/how-to-read-and-write-to-dbf-database-file-from-ruby/comment-page-1/#comment-1038 Nick Gorbikoff Thu, 14 May 2009 14:26:29 +0000 http://www.gorbikoff.com/2009/02/03/ruby-dbf-database-file-a-working-solution-2/#comment-1038 Sorry I misread, your question - you are inserting into DBF, not MySql. I haven't tried it myself. Hmm. Logical is indeed a scalar data type - or boolean. From what I can see everyone suggests to use just put in True or False. Hmm can't test it here. I looked in a couple of my tables and don't see Logical used anywhere. If you have sample table that you can send me - I can take a look. Sorry Sorry I misread, your question – you are inserting into DBF, not MySql.
I haven’t tried it myself.

Hmm. Logical is indeed a scalar data type – or boolean. From what I can see everyone suggests to use just put in True or False.

Hmm can’t test it here. I looked in a couple of my tables and don’t see Logical used anywhere. If you have sample table that you can send me – I can take a look.

Sorry

]]> Comment on How to read & write to a dbf database file from ruby. by Nick Gorbikoff http://www.gorbikoff.com/2009/02/03/how-to-read-and-write-to-dbf-database-file-from-ruby/comment-page-1/#comment-1037 Nick Gorbikoff Thu, 14 May 2009 14:10:53 +0000 http://www.gorbikoff.com/2009/02/03/ruby-dbf-database-file-a-working-solution-2/#comment-1037 Ryan, that's dBase specific. Not really in ODBC spec. But I think it can be mapped to to SQL_BIT type in ODBC universe. Also odbc can't handle indexing columns of field (value) type Logical. I believe mysql actually supports sql_bit data type as well. Hope that helps. Ryan,

that’s dBase specific. Not really in ODBC spec. But I think it can be mapped to to SQL_BIT type in ODBC universe. Also odbc can’t handle indexing columns of field (value) type Logical. I believe mysql actually supports sql_bit data type as well.

Hope that helps.

]]> Comment on How to read & write to a dbf database file from ruby. by Ryan http://www.gorbikoff.com/2009/02/03/how-to-read-and-write-to-dbf-database-file-from-ruby/comment-page-1/#comment-1036 Ryan Thu, 14 May 2009 13:39:59 +0000 http://www.gorbikoff.com/2009/02/03/ruby-dbf-database-file-a-working-solution-2/#comment-1036 Thanks for the useful information. I'm trying to use this method to insert data and I'm running into problems with a field of type logical. No matter what I use (0,1,"F","T","False","True") I get a "data type mismatch" error. If I try to use true or false as a parameter I get "can't convert True into string". Any ideas? Thanks for the useful information.

I’m trying to use this method to insert data and I’m running into problems with a field of type logical. No matter what I use (0,1,”F”,”T”,”False”,”True”) I get a “data type mismatch” error. If I try to use true or false as a parameter I get “can’t convert True into string”. Any ideas?

]]> Comment on Если бы языки програмирования были бы машинами. by Nick Gorbikoff http://www.gorbikoff.com/2009/01/28/%d0%b5%d1%81%d0%bb%d0%b8-%d0%b1%d1%8b-%d1%8f%d0%b7%d1%8b%d0%ba%d0%b8-%d0%bf%d1%80%d0%be%d0%b3%d1%80%d0%b0%d0%bc%d0%b8%d1%80%d0%be%d0%b2%d0%b0%d0%bd%d0%b8%d1%8f-%d0%b1%d1%8b%d0%bb%d0%b8-%d0%b1%d1%8b/comment-page-1/#comment-27 Nick Gorbikoff Fri, 20 Feb 2009 15:12:28 +0000 http://www.gorbikoff.com/?p=4#comment-27 Privet Artem. Nichego strannogo - ya tozhe kogda-to hodil v Kluch :-) Yaziki eti dostatochno redkie - ya nekotorie iz nih tol'ko vstrechal v literature tozhe :-) Privet Artem.
Nichego strannogo – ya tozhe kogda-to hodil v Kluch :-)

Yaziki eti dostatochno redkie – ya nekotorie iz nih tol’ko vstrechal v literature tozhe :-)

]]> Comment on Если бы языки програмирования были бы машинами. by artem http://www.gorbikoff.com/2009/01/28/%d0%b5%d1%81%d0%bb%d0%b8-%d0%b1%d1%8b-%d1%8f%d0%b7%d1%8b%d0%ba%d0%b8-%d0%bf%d1%80%d0%be%d0%b3%d1%80%d0%b0%d0%bc%d0%b8%d1%80%d0%be%d0%b2%d0%b0%d0%bd%d0%b8%d1%8f-%d0%b1%d1%8b%d0%bb%d0%b8-%d0%b1%d1%8b/comment-page-1/#comment-15 artem Thu, 19 Feb 2009 18:35:20 +0000 http://www.gorbikoff.com/?p=4#comment-15 интересно,я где-то четверть языков не знаю даже по названиям=) а вообще странно меня сюда занесло -- группа ключ в контакте,потом переход на Вашу страничку,потом сюда=) интересно,я где-то четверть языков не знаю даже по названиям=)
а вообще странно меня сюда занесло — группа ключ в контакте,потом переход на Вашу страничку,потом сюда=)

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