I am trying to setup a Google Data Studio report for data that only needs to be accessed intermittently, such that refreshing the data on an interval in a table would be more expensive than just refreshing it as needed. For this reason, I have written a procedure in BigQuery that SELECTs the required data (given a number of parameters), with the intent to call the procedure on an as needed basis from Data Studio.
I thought it must be possible to add a BigQuery connector and create a custom query with the contents e.g.
CALL `my-project`.MyDataset.myProcedure(#myparameter);
And parameters defined for the custom query, such as:
But, when I save the custom query I am getting an error such as:
However, if I do not use a parameterized value, I am able to save the custom query. Such as:
CALL `my-project`.MyDataset.myProcedure("myvalue");
Does anyone know if there is a way to save a custom query, with a called procedure, with parameters?
Related
I am calling the same database query in multiple form handlers, I want to access the data once for processing and store it to use them across multiple form handlers.
Formhandler, caches the data after your first query so essentially you are not querying to the DB if your query remains same.
And if you are firing the same query through multiple formhandlers you could essentially write a transform function which can do all the different processing after fetching the data (Formhandler will take care of caching and you will not query from different patterns).
/dataapi?mode=getsalesdata&otherparams=.......
/dataapi?mode=getavgsales&otherparams=........
You could also use query function in formhandler to control the dynamic behaviour of your query.
Provide some more details around the use-case to have a tailored response.
I need to call a vendor procedure that searches the database for possible matches. The input parameters are entered in a global temp table, then a procedure needs to be called that fills another global temp table with possible matches. Any thoughts on the best way to do this with APEX?
This is a vendor database. I really can't change anything. The vendor procedure requires that I load parameters into their GTT, run their procedure, then get the results from their result GTT. I'm new to APEX and just trying to figure out the best way to handle that...what type of apex object do I use to load the parameters to the parameter GTT? How do I call the procedure when the parameter row is saved? What apex object should I use to display the result GTT...a report, a grid...?
As data in a global temporary table (GTT) is "private", i.e. can be accessed in the same transaction or a session (which would probably be your choice, so you'd create a GTT with the ON COMMIT PRESERVE ROWS), as long as you do everything in the same session, that would work.
On the other hand, if there are several sessions involved, you're probably out of luck and will have to change the approach. The most obvious is to use a normal table (not a global temporary one), or - if possible - Apex collections.
I am trying to achieve the following scenario using crystal report:
Call stored procedure from SQL server using parameter that is set from data in each row of table in crystal report. See illustration in the figure below:
Each stored procedure for each row will be executed based on value that is passed to stored procedure.
I have been trying to call stored procedure using Database expert, and use the field for stored procedure the same as I use the field from Tables.
The problem is the report will always ask the value for the parameters, as this approach will generate parameter fields based on the parameter that is defined in stored procedure. I want the parameter values to be set automatically based on the data in each row.
Please let me know whether it is possible to achieve this scenario using crystal report. For the information, I don't have access to the source code that generate this report. So, I have to do this on report file.
I am new to ASP.NET MVC. I should create a page where users enters an order for their shops by central warehouse. The products and amounts are listed by a stored procedure from database. I have to show rows in a gridview which are calculated by the stored procedure. I want to insert the changed data in a table in SQL after the user make changes on the gridview. Users can call the saved doc back and make changes on it and save it again.
I can't build a strategy how that can be made. If I use Entity Framework I can show the SQL table rows in grid but it is not my goal. I have to let the SQL calculate first the data. Could you please give me some start point and steps to go ahead. I hope I could explain what I need.
There Are some simple steps to do that
1- Go and update model from database and add the required Stored procedure
2- create a complex type from model browser
in complex type map your Stored procedure fields as it returns the data.
3- and map that complex type to the stored procedure. and use it as you use table.
I have a Tadocommand on my datamodule which is connected to a MSSQL storedproc. The storedproc is used to update a table.
In my code I call the the tadocommand in the beforeupdaterecord method of one of my Tclientdatasets.
first I supply values to the tadocommand parameters using the deltads.fieldbyname().newvalue of the Tclientdataset then I call the execute procedure. It works ok for the first update but if i try to do a next update it generates "error changing varchar to datetime".
if i dynamically create the tadocommand in the beforeupdaterecord method i.e
sp1_editcontract:=Tadocommand.Create(nil);
sp1_editcontract.CommandType:=cmdStoredProc;
sp1_editcontract.Connection:=DMDBconn.DBConn;
sp1_editcontract.CommandText:='EditContract';
sp1_editcontract.Parameters.Refresh;
//assign parameter values
sp1_editcontract.execute;
sp1_editcontract.free;
it works without any errors. I think there is some problem with the parameters values when using the static Tadocommand on the datamodule.
why does multiple update generate an error when using a static created tadocommand and not for the dynamically created tadocommand?
I'm going to assume you are referring to TDatasetProvider.BeforeUpdateRecord and not TClientDataSet.BeforeUpdateRecord.
Its kinda hard to say from the information you've provided (you don't indicate the data types or order of the arguments for the stored procedure). The error message is coming from the SQL Server engine. I would make sure the values being assigned to the parameters are always being set in the correct order. Also try to identify which parameter is causing the error. If you can reliably reproduce it in your client code you may try calling the stored procedure in SSMS passing the same values that are causing the error in the client application.
Once you identify the parameter you can check that its datatype is consistent between the ADOCommand, DatasetProvider and ClientDataset. If it changes type along the way that may be the cause of the error.
One last suggestion, make sure you set TDatasetProvider.Applied := True before exiting the BeforeUpdateRecord handler. This prevents the dataset provider from trying to apply the update using dynamic sql after you've already applied the updates. If the data in the client dataset was populated by a TADOQuery it may be attempting to update the tables directly.
I had a similar problem. In order to clear all the existing parameters of the ADOCommand before adding new ones a used the following code:
while Command.Parameters.Count>0 do
Command.Parameters.Delete(0);
Parameters.Clear should had worked, but it didn´t, so I decided to remove the parameters one by one. That fixed to me.