Path: csiph.com!x330-a1.tempe.blueboxinc.net!usenet.pasdenom.info!weretis.net!feeder4.news.weretis.net!news.musoftware.de!wum.musoftware.de!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail From: Chris Riesbeck Newsgroups: comp.lang.java.programmer Subject: Re: Java DB rotation Date: Tue, 31 Jan 2012 12:57:44 -0600 Lines: 42 Message-ID: <9oqrt9FeibU1@mid.individual.net> References: <4f2752d1$0$283$14726298@news.sunsite.dk> <9opk4aFpfhU2@mid.individual.net> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Trace: individual.net wh6GBbY4YuiZ8qMKiKeW2wlFQrd5cIj1RfgTZWT4f+pJ13mvTt Cancel-Lock: sha1:MNORuyDu0TfIByC7SZlGmudlmQk= User-Agent: Mozilla/5.0 (Windows NT 5.1; rv:9.0) Gecko/20111222 Thunderbird/9.0.1 In-Reply-To: <9opk4aFpfhU2@mid.individual.net> Xref: x330-a1.tempe.blueboxinc.net comp.lang.java.programmer:11678 On 1/31/2012 1:38 AM, Robert Klemme wrote: > On 31.01.2012 03:32, Arne Vajhøj wrote: >> On 1/30/2012 9:24 PM, Jim Lee wrote: >>> On Tue, 31 Jan 2012 02:21:11 +0000 (UTC), Martin Gregorie >>> wrote: >>>> On Mon, 30 Jan 2012 18:08:04 -0800, Jim Lee wrote: >>>>> I have a Java server controller that read/write to Database table >>>>> >>>>> Java server will start read / write to a new DB table every >>>>> week/monday >>>>> e.g. >>>>> table-1-2-2012 table-1-9-2012 table-1-16-2012 table-1-23-2012 ... etc >>>>> >>>> What problem are you using table rotation to solve? >>>> >>>> What would prevent you from using a single table containing datestamped >>>> rows which are archived and/or deleted the rows after "cycle length" >>>> days? >>> >>> my main problem is how to make sure "how to get the correct table name >>> to read/write to" depending what day in the week >>> >>> start a new DB table is a must since it's going through some other >>> REST backend layer >> >> There is nothing in REST that requires such a table structure. >> >> And it would be better to fix the bad code requiring such >> a table rollover than to make other apps bad to work with it. > > Another question: Jim, what database are you using? If the instance > requiring multiple tables is afraid of volume the typical solution to > this issue is called "partitioning". If your database supports it, > that's typically the way to go for such kind of data. Pretty much every response from the OP has suggested either really bad intra-team communication (distributed team?), or a system architect angling for an appearance on the Daily WTF.