Mule with stored procedure
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Stored procedures allow developers to encapsulate business logic and rules in the database for improved maintainability, testability, security, and performance. The Mule Database component supports executing stored procedures. A developer can create a stored procedure in their database, then call it from a Mule flow using the Database component by specifying the stored procedure name. This retrieves data from the database and executes the stored procedure logic.
Mule with stored procedure
- 1. By Anirban Sen Chowdhary
- 2. Before we start let’s look what actually a stored procedure is. Stored procedure :- A stored procedure which is also called proc, storp, sproc, StoPro,StoredProc, StoreProc, sp or SP is actually stored in the database data dictionary. Source:- Wikipidea
- 3. The main advantages of Stored procedure are :- Maintainability It is easier to maintain scripts containing stored procedure Testing It can be tested independent of the application Isolation of Business Rules Having Stored Procedures in one location means that business rules are separated from disparate code files in the application Speed / Optimization Stored procedures can be cached on the server Execution plans for the process are easily reviewable without having to run the application Security It limit direct access to tables via defined roles in the database and also provide an "interface" to the underlying data structure so that all implementation and even the data itself is shielded.
- 4. How are Stored procedure called :- Through CALL procedure(...) or EXECUTE procedure(...)
- 5. So, Do Mule Database component supports Stored procedure and how can we run a Stored procedure from Mule Database component ????
- 6. Yes, Mule Database component supports executing Stored procedure
- 7. So let us create a Stored Procedure in our database:, I used SQL server in my case-
- 8. You can see the how our Stored procedure is created. Let our Stored procedure name be testStoredProccedure , and this Stored procedure will retrieve all the data from Database:-
- 9. Now we click execute button as below, our testStoredProccedure is created :-
- 10. So, our Mule flow will be following :- This Mule flow will retrieve all the data from Database using the Stored procedure
- 11. Our Mule config will be following :- You can see the database component is calling the Stored procedure testStoredProccedure
- 12. Now, lets hit the url http://localhost:8081 and test our application:- If you now check the console you will find the Stored procedure is executed and data are retrieved from Database
- 13. That’s it … Now you can try this example by your own and can execute your Stored procedure .. Hope you enjoyed this little trick … Happy coding and share your knowledge everywhere