web2py DAL only sees tables that are defined via the DAL. For raw sql
you can do db.executesql("....")On Nov 13, 2:39 pm, Crim <[email protected]> wrote: > thanks for the in-depth reply ^ ^ > > im using existing tables and i master and another one stuff setup to > do the same thing but this is a school project so im not to picky at > the moment xD but thanks for the info for future use. > > Can i do the db(db.user.email == s).select() if i dont instantiate it > in web2py? do i still have to define it? Considering the tables exist > in the MSSql db? > > On Nov 13, 2:05 pm, Niphlod <[email protected]> wrote: > > > uhm .... are you using existing tables or you are using web2py to > > create them ?? > > > dbo shouldn't affect at all the query, but a few hints nonetheless : > > > master is a really nasty place to create tables .... "master" db > > should be left untouched .... in web2py you define a database when you > > istantiate db object, and all the query done on that db won't be able > > to "see" other databases > > > that stated, if you have your connection string as > > "mssql://username:passw...@localhost/master" > > > the query "select * from [master].[dbo].[User] where [master].[dbo]. > > [User]=s" should be accomplished doing: > > > db.define_table('user', > > ..... > > Field('email', 'string'), > > ..... > > ) > > > and db(db.user.email == s).select() > > > anyway, I'm not sure (I don't have MSSQL installed to try out, but I > > can reply you on monday at work) that there are a few places where > > this implementation could not work: > > > - web2py creates tables and fields with lowercase letters, so "User" > > get selectable only if database is set to be case insensitive > > - "dbo" stands for "dbowner" and it represent the schema which the > > object (in this case, a table) belongs. if your user has not the > > "db_owner" role on the db you won't be able to "see" it > > > A few words also on this. Having objects beloging to different schemas > > under the same database it's definitely an option, but web2py > > (actually the library it uses, and many others like that) can't > > "choose" different schemas... they simply ignore it and the database > > defaults to whatever the default is for the user querying the database > > itself. > > You can have different schemas to separate between permissions on > > different objects in the same database, but to avoid headaches it's > > always better to create a separate user that "owns" a single database > > and put every data inside it. > > > If the user in the connection string is db_owner of the database, > > "select * from dbo.table" is perfectly equivalent to "select * from > > table" > > > If you have any other question please ask, I'll be glad to test it out > > on Monday > >
