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Posts Tagged ‘Query from a Servicer’

Service as a Query (SaaQ) or Query from a Service (QfaS)

June 14th, 2009

Imagine for a minute if you had the ability to write a query from a (Web) service.  I’m calling this “Service as a Query” or “Query from a Service” or “Query Service” for short…

For example, let’s say you wanted to write a query against a Web service from http://www.thomas-bayer.com/ that contains an operation called getBank.  The service contains a bank ID (biz).

select bankName, bankId, location, plz
from   thomas_bayer_bank_service
where biz = 20041133

 

BANKNAME BANKID LOCATION PLZ
comdirect Bank COBADEHD001 Quickborn, Kr Pinneberg 25449

Powerful, right?  Absolutely!  Or let’s say you want to query from http://www.abundanttech.com/ ”dead or alive” service and call the getTodaysBirthdays operation (that has no parameters):

select *
from   todays_birthdays

 

FULLNAME BIRTHDATE DEATHDATE AGE KNOWNFOR DEADORALIVE
Belushi, James 06/15/1954   55 Saturday Night Live Alive
Cuomo, Mario 06/15/1932   77 State and Local Figures Alive
Jennings, Waylon 06/15/1937 02/13/2002 (64) Country & Western Performers Dead
Nilsson, Harry 06/15/1941 01/15/1994 (52) Pop and Rock & Roll Performers Dead
Udall, Morris 06/15/1922 12/12/1998 (76) Members of Congress Dead
Varney, Jim 06/15/1949 02/10/2000 (50) Other Actors Dead

Or let’s say you used Yahoo Pipes to pull Oracle’s current stock price and then you want to query from a RESTful service to get this information - now:

select current_stock_price, link, details
from   yahoo_pipe_oracle

CURRENT_STOCK_PRICE LINK DETAILS
ORCL - last: $20.85 @ 4:00pm EST 6/12/2009 http://finance.yahoo.com/q?s=ORCL last: $20.85 @ 4:00pm EST 6/12/2009 <br>change: -0.09 <br>day high: 21.00 <br>day low: 19.47 <br>open: 20.82 <br>volume: 23154762 <br><img src=”http://ichart.finance.yahoo.com/b?s=ORCL”>

Or what if you want to query from Google:

select *
from   google
where  searchString = ‘Bradley D. Brown’

Web Services allow you to run a program on another server as if it’s on the same server.  You don’t need to know the operating system, the hardware platform, the programming language or much of anything about the source system.   You simply run the program on another server.  That’s what a Web Service is.  Just think about the power of being able to query from ANY data source as if that data is in your own database.  That’s what I’m calling a Query Service!

Rolta’s iPerspective product allows you quickly expose your existing business logic and data as Web Services.  As discussed below, iPerspective adds key features to your service deployment.  Rolta’s Periscope product gives you Query Service functionality right out of the box.  You can query from ANY Web Service with a simple SQL Query!  Imagine the power of this type of functionality.  Any product that uses a JDBC driver can now query from any Web Service as if the data is on the same system.  That’s powerful!

Here are some of the key iPerspective differentiators:

 

 

 

 

 

 

 

  1. Federated (i.e. cross DB) queries

  2. Security

    i.e. if you want put a digest, LDAP, single sign-on layer on top of services with a button click

  3. All different bindings of the WSDL (i.e. old formats to new)
  4. Release management - Grouping of objects into different releases of services
  5. A repository of your services -
  6.  i.e. a pretty complete stack all in one
  7. Extended object support we support a lot of things that JDev didnt in the past i.e. overloaded functions in a package, record types, and MANY, MANY ore

    basically any Oracle ERP package/API can be turned into a service

  8. Dynamic service - We have a service type that allows you to call it and pass in your SQL statement and we have security options that allow you to restrict what objects can be used and you can lock down the gateway or allow the service to accept this and you can pass in a federated query too
  9. Virtual private service - ability to provide access to a service that gives a customer only their data
  10. ApEx, Sensedia and UDDI support - We deploy our service repository to a number of other repositories
  11. RESTful services - with a click, you can make your release a RESTful release
  12. Auto deployment - we can deploy to 1 server or 100 at once
  13. Open Adaptor API we have an open API for Security, Gateways. Code generation

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