On Mon, Jun 21, 2010 at 10:07, Subash Chaturanga <subash...@gmail.com> wrote: > In JCR Queries ,say for instance > > " select * from nt:resource " > > Does this means select all nodes which has the node type "resource".
Yes, but the node type is called "nt:resource" (nt being a prefix for a full namespace), independently of the sql query. >As I am > a new commer ,it is really great if anyone can tell me how to query it? > > I went through the JSR 283 spec ,but couldn't get an exact meaning. > Does Selectors means the thing "select" we know in SQL queries ? Joins : > means combining several "select" queries as in SQL ? Yes, it follows the standard SQL semantics, albeit the feature set is very specific to JCR. > Is it always a set of nodes we get returned in an execute command? Yes. > Are there any references other than the spec to follow ? You could look at the earlier JCR-SQL query language in JCR 1.0 (JSR-170) that is now deprecated, but still available in Jackrabbit 2.x. This is similar to JCR-SQL2, but without joins and other features. Regards, Alex -- Alexander Klimetschek alexander.klimetsc...@day.com
