SQL

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Greetings all,

I have a quick SQL question.  I am working with a class, which has a calculated property, which in turned indexed.
The calculation for this property is created based on another property value via: 
SqlComputeOnChange = attributes  - so basically every time I add a property attribute to my class, my new property 
is calculated based on some SqlComputeCode which calls some class method.

That initial setup works as designed.

Last answer 16 November 2018
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Hi,

Most of my classes are mapped from Globals. I want to access Cache classes from a BI software through ODBC connection.

'Last update' information does not exist in most of the classes. My question is whether there is a 'last update' timestamp that is automatically generated for each line in classes I can extract to external systems?

Thanks

Last answer 10 November 2018 Last comment 12 November 2018
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Hello,

I have been trying to pull data through a linked server in SSMS from an InterSystem Cache Database for a while, this is to enable us to join the data to other source systems in our Data Warehouse.

I have set up an ODBC connection and a linked server to the database and can execute queries through OPENQUERY in Management studio, but the data is huge (> 100million rows). So when I execute a SQL query with a WHERE clause the query just spins.

Last comment 1 November 2018
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What is the difference between %ID and ID in a database table? Both seem to reference the same column labelled ID.

For context, I am trying to create a viewer class for an existing persistent class.

Let us call the persistent class A, with SqlTableName = OldA.

The viewer class will be B with SqlTableName = A and ViewQuery = {select %ID, <other fields> from <some other class with the same fields as A>}

Last answer 30 October 2018
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Hi every body

I hope it's the right place & I'm not offending any body.

I'm a veteran Mumps/Cache/Ensemble programmer .  I think my only draw back is my age, although my brain is still young & bubbly.

I'm looking a long time for work without success.

I gathered a lot of knowledge & experience during those long years , developed many projects & i'm ready to do any work only to feel useful.

I'll add my resume, I hope & wish that this post will bring some change as I'm desperate to get some work.

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Hello everyone,

I want to fill data into my select component with sql request and parameter.

I tried to follow this example https://docs.intersystems.com/latest/csp/docbook/DocBook.UI.Page.cls?KEY... 

I need to call a method because my parameter can be different. I tried something like this but it doesn't work... 

Last answer 19 October 2018 Last comment 19 October 2018
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I have a ZEN page with nine tablepanes. Each tablepane queries a table in the same SQLServer db. I have a single SQLGateWay(odbc) to this SQLServer db. I need to get better performance when I query all nine table at the same time. Would my performance improve if I had nine SQLGateWays(nine odbc configurations/connections), one for each query? I would appreciate any and all suggestions for getting the very best performance when using SQLGateWays. Thank you.

Last answer 18 October 2018
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I have created a view to stage some data in a different format and then want to reference that view in a SQL query from a table that filters the data from the view using a property of the table. 

Example:

select
   MsgId,
   FileName,
   (select
      ReportName
     from
      custom_view
     where
       MsgId = ReportId
    ) as ReportName
from
   main_table

Is this even possible? When I try this, I get an error table not found for the view?

David

Last answer 17 October 2018
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I'm running this code in our application, and in the terminal:

>set query="SELECT * FROM PMG_Data_Private.RemitInstance  WHERE  (VoucherNumber %INLIST ? SIZE ((10)))"

>set tRS = ##class(%ResultSet).%New("%DynamicQuery:SQL")

>set ok=tRS.Prepare(query)

>d $system.Status.DisplayError(ok)
 
ERROR #5540: SQLCODE: -76 Message: Cardinality mismatch between the SELECT-list and INTO-list
SQLTEXT: SELECT * FROM PMG_Data_Private.RemitInstance  WHERE  (VoucherNumber %INLIST ? SIZE ((10)))

Last comment 9 October 2018
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Hello,

I have a question about creating properties with curl.

I already did create properties in Java with the following command.

<DO db.%CreateProperty("TotalSteps","%Integer","$.TotalSteps")>

It created the property TotalSteps with the type %Integer and the data path $.TotalSteps (since the header of my data source is also TotalSteps).

Now I would like to create the same property in curl with the following command

Last answer 4 October 2018 Last comment 4 October 2018
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Hi everyone,

I need submit a object have a json string as property of class, but I get an issue, object can't save to SQL table if I take json data to json property. I try making a test class with only json property and get the same issue, no data row in SQL table after run ClassMethod . Some one know what's problem, please help me. Here my test class:

Last answer 4 October 2018 Last comment 4 October 2018
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I would like to know , if its safe to use %NOLOCK  in insert query while doing some parallel processing in Ensemble. We will have pool size of more than 1 for a business process. The  business process  does an entry in internal meta data table , which will be used for some internal reporting. The same row might get updated by some other process  later point of time.  i could not  produce any error or any issues . Looking forward to hear some opinion on this.

Last answer 3 October 2018
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Hi all,

We have a big problem because we have the following message when I try to open the messages in a production.

ERROR <Ens>ErrException: <DATABASE>zfindStatement+29^%SQL.DynamicStatement.1 ^%sqlcq("MYNAMESPACE","Query",8,"Gns8AZO5dJclytqv13l9gUuLUyo=",""),c:\intersystems\healthshare\mgr\cache\ -- logged as '-' number - @''

SOURCE ELEMENT: %ZEN.Component.tablePane (resultsTable)

Last answer 5 September 2018 Last comment 5 September 2018
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SQL gateway. 'Locking' problem.

while debugging, is there in Caché a command to 'unlock' the instance of a class ?

close class, and kill class is not enough.

same problem in %Activate link

for each debug I have to exit (Halt) the terminal, 

make debug in C#

coming back , and re-load again in Caché.

Regards,

Emanuel

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We have a new requirement being push down by our Data Security to no longer use Local SQL Accounts to access our Databases. So they asked me to create a Service Account that is on the Domain for our connections to each database.

I tried just changing my JDBC connection to using this Service Account and Password but I am not having any luck trying to connect to the database.

" Connection failed.
Login failed for user 'osumc\CPD.Intr.Service'. ClientConnectionId:ade97239-c1c8-4ed1-8230-d274edb2e731 "

Last answer 16 August 2018 Last comment 16 August 2018
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I have finished my 4th book about Caché and MUMPS. This will probably be my last.

I am deeply grateful and humbled for all the help I have received from this group and the WW Response Center.

You all have something very special going here. 

Last comment 10 August 2018
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Good afternoon everyone,

I hope you are well,

I am currently working on the below opportunity and if anyone here would like to hear more details please feel free to contact me on 01908 886 030 or teo.rusu@identifiglobal.com

Met with the client yesterday, beautiful office in Waterloo London, latest tech available with many benefits including working from home 2 days/w as well!

Intersystems Caché Senior Software Engineer

London

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Hello there,

I have some problem with inserting date to table using dynamic sql.

I have Country class. This table has relationship with class Continent as parent and child. In addition I have another statistic class where property Country has type of Country class. I get ID such as "1||1" next I execute dynamic sql INSERT INTO Stats(Country) VALUES("_CountryId_"). Then I select Stats table and see that value of Country column is "11") As a result a can't get Country object.

Please advice solution of this problem

Thank you

Last answer 3 August 2018
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Would like to know if there is an alternative or better way to paginate through a dataset using dynamic SQL than what I am using below. The problem is that as the potential pool of data gets larger, this code slows down to the point of not being useable. In analyzing each line of code below, it appears the slow down is related to the initial rset.%Next() iteration. Is there anything available which does not require a subquery/%VID such as a simple LIMIT/OFFSET?

My code is similar to :

s sql=##class(%SQL.Statement).%New()

Last answer 18 July 2018 Last comment 26 July 2018
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Hi,

I have a question related with EnsLib.SQL.OutboundAdapter adapter.

Is there a way to open an oracle transaction and do either commit or rollback depending on the query result?

Is posible to keep open an oracle transaction to execute a lot of queries on different methods on the same business operation and do a commit when the business process finished?

Thanks and Best Regards

Last comment 24 July 2018
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