[SQL] use of savepoint in containter managed transaction

2011-09-23 Thread Amar Dhole
HI All, I have requirement to use save point. But I am using session bean whose transaction is managed by container. While executing sql insert I got unique key constraint because of this my other command following this exception got ignored. I want to continue my transaction even after this

Re: [SQL] using the aggregate function max()

2011-09-23 Thread Thomas Kellerer
John Fabiani, 23.09.2011 04:49: I need to find the max(date) of a field but I need that value later in my query. If I select max(x.date_field) as special_date from (select date_field) from table where ...)x I get one row and column. But now I want to use that field in the rest of the query

[SQL] a spatial table's bounding box

2011-09-23 Thread Asli Akarsakarya
Hello,  My question is a basic one for postGIS, I believe. It should have a primitive answer somewhere, but I don't have it.  I want to get the extensions of  spatial table. Say that there is a spatial table named 'roads', and a some road geometry inside. I want to fetch the bounding box

[SQL] help with xpath namespace

2011-09-23 Thread Brian Sherwood
I am trying to use xpath to extract some information from a XML document. (if it matters, It's the router config for a Juniper router) I believe I am having problems with the namespace. I am trying to extract the serial-number, but I am not getting anything. Here is the script I have been

Re: [SQL] help with xpath namespace

2011-09-23 Thread Filip Rembiałkowski
2011/9/22 Brian Sherwood bds...@gmail.com select (xpath('/chassis-inventory/chassis/serial-number/text()', data_xml, ARRAY[ARRAY['junos', 'http://xml.juniper.net/junos/9.6R4/junos-chassis']] )) from xml_test; Can anyone suggest how I would go about getting the

Re: [SQL] a spatial table's bounding box

2011-09-23 Thread Filip Rembiałkowski
2011/9/22 Asli Akarsakarya aslia...@yahoo.com I want to get the extensions of spatial table. Say that there is a spatial table named 'roads', and a some road geometry inside. I want to fetch the bounding box (envelope or extension) for that table, that means for all the roads that it

[SQL] Howto build a funtion that selects an id or inserts a value

2011-09-23 Thread Andreas
Hi, I'd like to have a function that looks up an id of an item. In case the item doesn't exist in the table yet it should be inserted and the new id should be returned. From the PG docu, I took the merge_db sample and modified it a bit. This works but I'm wondering if INSERT part could be