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diff --git a/pipermail/pycrypto/2009q1/000058.html b/pipermail/pycrypto/2009q1/000058.html new file mode 100644 index 0000000..ea51649 --- /dev/null +++ b/pipermail/pycrypto/2009q1/000058.html @@ -0,0 +1,77 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN"> +<HTML> + <HEAD> + <TITLE> [pycrypto] synchronisation 2 computers'databases + </TITLE> + <LINK REL="Index" HREF="index.html" > + <LINK REL="made" HREF="mailto:pycrypto%40lists.dlitz.net?Subject=%5Bpycrypto%5D%20synchronisation%202%20computers%27databases&In-Reply-To=BAY118-W3181B57F053E79E4459CD7FFC60%40phx.gbl"> + <META NAME="robots" CONTENT="index,nofollow"> + <META http-equiv="Content-Type" content="text/html; charset=us-ascii"> + <LINK REL="Previous" HREF="000057.html"> + <LINK REL="Next" HREF="000059.html"> + </HEAD> + <BODY BGCOLOR="#ffffff"> + <H1>[pycrypto] synchronisation 2 computers'databases</H1> + <B>Bill Broadley</B> + <A HREF="mailto:pycrypto%40lists.dlitz.net?Subject=%5Bpycrypto%5D%20synchronisation%202%20computers%27databases&In-Reply-To=BAY118-W3181B57F053E79E4459CD7FFC60%40phx.gbl" + TITLE="[pycrypto] synchronisation 2 computers'databases">bill at broadley.org + </A><BR> + <I>Fri Jan 30 00:34:47 CST 2009</I> + <P><UL> + <LI>Previous message: <A HREF="000057.html">[pycrypto] synchronisation 2 computers'databases +</A></li> + <LI>Next message: <A HREF="000059.html">[pycrypto] synchronisation 2 computers'databases +</A></li> + <LI> <B>Messages sorted by:</B> + <a href="date.html#58">[ date ]</a> + <a href="thread.html#58">[ thread ]</a> + <a href="subject.html#58">[ subject ]</a> + <a href="author.html#58">[ author ]</a> + </LI> + </UL> + <HR> +<!--beginarticle--> +<PRE>frendy zhang wrote: +><i> i am currently working on synchronisation. I have 2 or more "projectA" in different computers and i would like to synchronise all the entries in the database from different computers when few entries are added into database. +</I>><i> so at the end, all the computer would have the same entries in the database +</I>><i> Do u have any example that could help me with this function? +</I>><i> Thanks in Advance +</I> +Not sure how this relates to pycrypto. But if you keep a unique UID per row, +and a last updated field per row it becomes very straight forward to do a: +select from table where update_time>last_sync + +So server A says: + server B, send me all records updated since X + +Then server B says: + server A, send me all records updated since X + +Then you can use a flag for deleted records, an additional table, or even just +a queue, then don't purge a record till you are sure both sides are aware of the. + +You didn't mention your database, but be careful not to use auto increment, or +if you do don't use that as a key/index. +</PRE> + + +<!--endarticle--> + <HR> + <P><UL> + <!--threads--> + <LI>Previous message: <A HREF="000057.html">[pycrypto] synchronisation 2 computers'databases +</A></li> + <LI>Next message: <A HREF="000059.html">[pycrypto] synchronisation 2 computers'databases +</A></li> + <LI> <B>Messages sorted by:</B> + <a href="date.html#58">[ date ]</a> + <a href="thread.html#58">[ thread ]</a> + <a href="subject.html#58">[ subject ]</a> + <a href="author.html#58">[ author ]</a> + </LI> + </UL> + +<hr> +<a href="http://lists.dlitz.net/cgi-bin/mailman/listinfo/pycrypto">More information about the pycrypto +mailing list</a><br> +</body></html> |