Hello,
I store quite a lot of data (e.g 10 million) tuples (rows) in my
Person kind (table) at GAE datastore. Now i want to query the Person
kind from my web application. For example my web application sends a
query (e.g select * from Person where height < 2) through a http
request to my server (
Hello,
I have a system with client-server architecture. The client is
actually some java code and the server is some python code running in
GAE. When i need to query the kind (table) i defined in GAE data
store, i actually call a java function and it takes the query (e.g
select * from Person where
Hello,
I want to define two kinds (tables): Person (PersonId, age, name) and
Teacher (PersonId, age, name, teaching experience) in my GAE datastore
and Person is the superclass of Teacher. I want to define inheritance
relationship between Person and Teacher, so Teacher kind inherites
PersonId, age
Hello,
In a simple case, suppose i have two kinds (tables) stored in GAE
datastore:
Employee (EmployeeId, Name, Salary, StartDate, DepartmentId)
Department(DepartmentId, DepartmentName)
For Employee kind, EmployeeId is the unique key and DepartmentId is
the join attribute for Employee to make jo
Hi,
I use python runtime environment and met the same problem.
I use this command to upload data to master slave datastore:
appcfg.py upload_data --config_file=bulkloader.yaml --
filename=xxx.csv --kind=xxx C:\
According to GAE document i should use url instead of local directory
C:\ that i
engine
> Reddit:http://www.reddit.com/r/appengine
>
>
>
> On Thu, Jun 16, 2011 at 3:30 PM, Bruce Aloe wrote:
> > Hello,
>
> > In a simple case, suppose i have two kinds (tables) stored in GAE
> > datastore:
>
> > Employee (EmployeeId, Name, Salary, Start
Hello,
I have put some python code in GAE and my client (some java code) each
time sends a http request with a query to python code. The python code
receives the query and run it, then generate the query result. The
python code actually uses get_all function to get the query passing
from client to
Hello,
Suppose i have a kind named Employee with millions of tuples stored in
GAE. The Employee kind has properties/attributes like EmployeeId,
EmployeeName, Salary, StartDate, DepartmentId.
I would like to know the selectivity of each properties/attributes. In
order to do that, i want an very ef
Hello,
Suppose i have defined a database schema in GAE, it has Employee,
Department, etc kinds as it could be defined in Relational database.
One askes me why don't you just use relational database server like
MSSQL, MYSQL, etc to store your data. I was trying to answer this kind
of question by te
Hello,
Since there is not much information about GAE data store and Google
BigTable, I am wondering the relationship between them?
If one make query to GAE data store, can one say it is querying Google
BigTable?
Is there any paper or link describes it?
Thanks!
Bruce
--
You received this mess
Hello,
I have read the online documentation about GAE data store index, but
don't get it well.
Suppose i have a kind (table) Employee, with columns (attributes)
(EmployeeId, Age, Position, Salary, StartingDate), and 1 employees
are stored in the data store.
Does it mean all the attributes (E
Hello Geoffrey, you mentioned "2 indexes (one in each direction) will
be created for each property for each entity. "
What are the 2 indexes and why? what are the 2 indexes names?
Bruce
On Jun 30, 7:51 pm, Geoffrey Spear wrote:
> On Jun 30, 9:34 am,BruceAloe wrote:
>
> > Hello,
>
> > I have rea
Hello,
I am looking for a popular cloud computing forum. Do you have any
recommendation?
Thanks!
Bruce
--
You received this message because you are subscribed to the Google Groups
"Google App Engine" group.
To post to this group, send email to google-appengine@googlegroups.com.
To unsubscribe
Hello,
Google web app provides cursor facility and it enables the application
to return pieces of the large query result.
My question is: Does the cursor returns the piece result chunk by
chunk or row by row?
Thanks!
Bruce
--
You received this message because you are subscribed to the Google
Hello,
I have a client (some java code) and server (some python code defined
in GAE) system architecture. Http protocol is the communication
protocol between client and server. Once a client sends a query to
server and the server takes it and run it with GAE query interface
API. The query result i
Could anyone give an exact number? and its reference (the web link,
etc)?
On Jul 7, 12:10 pm, Noah McIlraith wrote:
> I'm pretty sure there's a limit, but IIRC it's at least 10MB, most likely
> more than enough for query results.
>
> Additionally, you may be interested in the Remote API.
--
You
Thanks for all the answers!
On Jul 7, 11:20 pm, David French wrote:
> http://code.google.com/appengine/docs/java/runtime.html#Responseshttp://code.google.com/appengine/docs/python/runtime.html#Responses
> LimitAmountrequest size32 megabytesresponse size10 megabytesrequest duration30
> seconds
--
Hello,
I have a client (some java code) and server (some python code defined
in GAE) system architecture. I know Http protocol could be used as the
communication
protocol between client and server.
Could other protocols such as SOAP be used as communication protocol
between client and server?
I
Hello,
I have defined some models(tables) in GAE data store and upload little
amount of data to each of them using GAE bulkloader. I have also
written a system in Java to query the data stored in the models of
GAE. Now i want to test the scalability of my system. Therefore i need
a benchmark to ge
E using task queues or
> backends. You might find generating the data using GAE is more efficient
> than doing it locally and uploading the data. How you generate that data
> will depend very much on your data.
>
> Robert
>
> On Aug 19, 2011 10:59 AM, "Bruce Aloe"
distributions and insert matching
> entities. If you've got complex relationships between entities it will be
> trickier, since you'll need to know about the patterns those follow, but the
> same ideas apply.
>
> Hope that helps a little bit.
>
> Robert
>
> On A
Hi,
I store some data in GAE data store and can not find any documents
regarding the relation between GAE data store and Google Bigtable.
Can one say querying GAE data store is the same as querying Google
Bigtable?
GQL is the query language to query GAE data store, is it right to say
using GQL t
high
> replication:http://www.slideshare.net/ikailan/2011-auggddmexicocityhighreplicatio...
>
> --
> Ikai Lan
> Developer Programs Engineer, Google App Engine
> plus.ikailan.com | twitter.com/ikai
>
>
>
> On Wed, Sep 7, 2011 at 9:36 AM, Stephen wrote:
> > On Wed,
Hi,
I noticed the figure in slide 7 of that presentation and it presents
the datastore layers.
However, what i am out for is the figures that shows the visualized
relation among GAE datastore, Megastore and Bigtable. For example,
Megastore contains GAE datastore, Bigtable contains Megastore, may
Hello,
SQL supports "like" operator. I am wondering whether GQL supports the
"like" operator or not.
I have been looking at the GQL reference:
http://code.google.com/appengine/docs/python/datastore/gqlreference.html
However, the document doesnot mention anything it.
Is there any official docume
Hello,
I am a user of GAE data store and use GQL to query my models. I just
saw the article about Google Cloud SQL published on October 6, 2011.
Since GQL has so many limitations, therefore Google Cloud SQL sounds
quite interesting for me.
Where can i use it and how to use it?
Any tutorial?
26 matches
Mail list logo