I have data stored in this format in amazon simpledb
source code success
fa.php 987439aa true
ga.php aa84892 false
how do i wrtie this type of query in simpledb
select * from domain_name where source = 'fa.php'
and code='ANy thing' and success = 'true'
How do i write code part in the above query
You can run this select query to achieve you result -
**select * from domain_name where source = 'fa.php' and code is not null and success = 'true'**
You can not add/update/delete data using Amazon simple DB query.
Related
I have a web service api
In Denodo, I have virtualized the following api:
https://delphi.cmu.edu/epidata/fluview/?regions=nat&epiweeks=201501,201601,201701
as
https://delphi.cmu.edu/epidata/fluview/?regions=#{regions}&epiweeks=#{epiweeks}
This allows us, in Denodo, to write the following:
Select * from bv_fluview where epiweeks = '201501,201601,201701' and regions = 'nat'
Is there any way where the query could be written in a more traditional way such as:
Select * from bv_fluview where epiweeks in ('201501','201601','201701') and regions = 'nat'
I am relatively new to Denodo.
Thanks,
Dan
In Denodo, you can use the IN clause to check if a value is present in a list
SELECT *
FROM bv_fluview
WHERE epiweeks IN ('201501','201601','201701')
AND regions = 'nat'
This would return the same result as your original query but with a more conventional syntax for the IN operator.
I am trying read tables from snowflake and use merge_asof to perform point in time correct join. Here is the corresponding code:
next_failure = dd.read_sql_table('vm_next_failure', conn_url, index_col='ts')
errors = dd.read_sql_table('vm_errors', conn_url, index_col='ts')
ndf = dd.merge_asof(next_failure, errors, left_index=True, right_index='ts', by="machineid", suffixes=("_l", "_r"), allow_exact_matches=False)
Here is the error I get:
ProgrammingError: (snowflake.connector.errors.ProgrammingError) 252004: Failed processing pyformat-parameters: 255001: Binding data in type (timestamp) is not supported.
[SQL: SELECT vm_errors.ts, vm_errors.machineid, vm_errors.error1, vm_errors.error2, vm_errors.error3, vm_errors.error4, vm_errors.error5
FROM vm_errors
WHERE vm_errors.ts >= %(ts_1)s AND vm_errors.ts <= %(ts_2)s]
[parameters: {'ts_1': Timestamp('2015-01-01 06:00:00'), 'ts_2': Timestamp('2016-01-01 05:00:00')}]
(Background on this error at: http://sqlalche.me/e/13/f405)
Any thoughts on how to workaround this?
Looks like you need to replace Timestamp with TO_Timestamp.
Please run the following query in the snowflake:
select TO_Timestamp('2016-01-01 05:00:00')
I have a test where after getting a response I would like to validate the entire schema of the response (not individual response node/value comparison).
Sample test:
[<Test>]
let howtoValidateSchema () =
let request = Request.createUrl Post "https://reqres.in/api/users"
|> Request.setHeader (Accept "application/json")
|> Request.bodyString """{"name": "morpheus",
"job": "leader"}"""
|> Request.responseAsString
|> run
Is there a way that I can save my expected Schema somewhere and once I get the response I do the comparison to check that response has same number of nodes (neither less nor more than expected schema)?
I am ok to opt for other libs like FSharp.Data if we there is no direct way in HttpFs.Client. I looked at FSharp.Data (https://fsharp.github.io/FSharp.Data/library/JsonProvider.html) but not able to seek how it meets the requirements where the schema comparison needs to be done with the savedExpectedSchemaJson=ResponseJson.
You can use Newtonsoft.Json.Schemato validate schemas:
open Newtonsoft.Json.Schema
open Newtonsoft.Json.Linq
let schema = JSchema.Parse expectedSchema
let json = JObject.Parse responeJson
let valid = json.IsValid schema
However this assumes you have a schema predefined somewhere. If you don't have such schema is best to use the JsonProvider who can infer it for you.
Run the call manually and save the result in a sample.json file and create a type using the JsonProvider:
type ResponseSchema = JsonProvider<"sample.json">
and you can use this type to parse any new content based on the sample (provided that the sample is a representative.
ResponseSchema.parse response
This won't validate the schema but will try to meet as best as it can given the input.
Hi I'm new to rails and developing an application to pull results from database in preparation for charting. I have the following code in my controller:
#statistic = OutstandingWorkIndex.find_by_sql ["SELECT Result_Set.Set_Code, Request.Specimen_Number ,
DATEDIFF('hh',Result_Set.Date_Time_Booked_In,current_timestamp) as HrsIn FROM iLabTP.Outstanding_Work_Index, iLabTP.Result_Set Result_Set, iLabTP.Request
WHERE Outstanding_Work_Index.Request_Row_ID = Result_Set.Request_Row_ID and Outstanding_Work_Index.Request_Row_ID = Request.Request_Row_ID and Result_Set.Set_code=?
order by Result_Set.Date_Time_Booked_In DESC", params[:set_code].upcase]
What I'd like to do is count the number of records returned in addition to the object from above which I then use to create and XML stream of paired values or use the google charts java script api in the view.
Do I need to issue commands like:
#statistic = OutstandingWorkIndex.find_by_sql ["SELECT Result_Set.Set_Code, Request.Specimen_Number ,
DATEDIFF('hh',Result_Set.Date_Time_Booked_In,current_timestamp) as HrsIn
FROM iLabTP.Outstanding_Work_Index, iLabTP.Result_Set Result_Set, iLabTP.Request
WHERE Outstanding_Work_Index.Request_Row_ID = Result_Set.Request_Row_ID and Outstanding_Work_Index.Request_Row_ID = Request.Request_Row_ID and Result_Set.Set_code=?
order by Result_Set.Date_Time_Booked_In DESC", params[:set_code].upcase].**count**
And if so does this result in the query being reissued?
Thanks
You should do:
#size = #statistic.size
It's well explained here.
After i generate my rdf triple.I want to insert them into Virtuoso triple Store via Jena.
....
model.write(System.out,"RDF/XML");
....
url = "jdbc:virtuoso://localhost:1111";
VirtGraph set = new VirtGraph (url, "dba", "dba");
Query sparql = QueryFactory.create("?????");
VirtuosoQueryExecution vqe = VirtuosoQueryExecutionFactory.create (sparql, set);
vqe.exec();
How can i do ?
The documentation for the Virtuoso Jena Provider includes a sample program VirtuosoSPARQLExample8 demonstrating how to insert triples into a graph.