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#Caché

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InterSystems Caché is a multi-model DBMS and application server. See more details here.

Documentation.

Question
· Nov 24
Intersystems REGEX engine

I am working on a product that uses REGEX and matches it.
The regex is tested both on the client-side (using the JavaScript REGEX engine) and both on the server-side.

But I couldn't find one word about the way intersystems parses the regex, It is quite elementary to state which which engine it works with.

from what I could gather from early implementations and such, the engine is based off PCRE, But I need to confirm this somehow, Can anyone give me a definitive answer, Is there any tool to test the regex other than writing it myself??

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Let's say I open a stream/file.

If it's not in UTF8 i need to call $ZCVT, and if it's already in UTF8, then I don't need to call $ZCVT.

Is there any way to determine character encoding for input stream/file?

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Is it possible to check retroactive LOCK history?

context:

I found it in the application error log. Some LOCK errors - ERROR #5803
Is it possible to somehow identify the point in the job or process code that caused these locks?

At the moment I no longer have table LOCKS on the server, but I would like, if possible, to check the time at which the incidents occurred.

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InterSystems FAQ rubric

Mirroring only synchronizes database files.

To synchronize other files required for your application (CSP files, images, documents, etc.) between the two servers that make up the mirror set follow one of the approaches:

  1. Place those files on a shared disk by introducing a NAS or similar device
  2. Or use file sync software to synchronize files between two servers.
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Hi,

When I try to compile a specific class it fails and gives the below error message.

ERROR #5002: Cache error: <FUNCTION>zLockUse+5^%ExtentMgr.GlobalRegistry.1
> ERROR #5030: An error occurred while compiling class 'ClassNameHere'

Is there anything I can do to fix this issue?

Thank you in advance for your response.

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I HAVE A NEW SQL CLASS THAT DISPLAYS ENTRIES BASED ON THE FIRST 2 NODES OF A GLOBAL. I FOUND OUT THAT THE CLASS ALLOWS FOR AN ADDITIONAL NODE(s) TO BE INSERTED IN THE "User Specification Node:" along the delimiter and the Piece in the NewStorage Map1 for "ModifyDDDD" shown below. it is not working.

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InterSystems FAQ rubric

By default, the order of columns in a table is determined automatically by the system. To change the order, explicitly set the order for each property using the property keyword SqlColumnNumber when defining the class.

Example:

Property Name As %String [SqlColumnNumber = 2];

Please see the documentation below.

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New to Python. Attempting to use pypyodbc to select data from a table in one Cache database, and inserting into a similarly configured table in another. Process works fine except for tables containing Date types. NULL values in date columns are handled without issue, but when data is present, insert fails with:

An error occurred: argument 7: TypeError: 'NoneType' object cannot be interpreted as an integer.

Source table:

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Hello everyone,
so lets say i have the following:

Hello
Q
say(arg)
w arg
Q


and i am trying to execute it by its name such as:


s a = "say^hello"

*execute the name inside a*

now I know for a fact that if say were written without any argument then do @a would work!

but I can I pass an argument in this case?
I don't want to use Xecute because I am in need of really high performance code.

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Hi,

I have a archive backup of a Cache database. I was able to restore the database but having trouble navigating through the globals, classes, namespaces .??? I am not a Cache user and/or developer so I am a bit lost. I am used to relational database such Microsoft SQL but not Cache which to my understand is a different breed of database. If you are looking for some extra money to help me extract some of the data I need i would be greatly appreciated.

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I have a business process that adds data to a global variable on receipt of an HL7 message, and a scheduled task that executes a class method defined within the same business process that removes data from the same global variable. With this in mind it makes sense to consider concurrency and therefore make use of the LOCK command.

My first question is whether this is actually necessary?

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Question
· Nov 4
Recursivity

Greetings.

I am working on a demand wheres i need to find all the possible combinations of number contained in a string, its works very well, but when the total numbers is increased bigger, the time to execute the code is increased exponentially. Theres a beter way to find combinations then recursively?

string data:

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I'm running a query, joining nine tables together. When I run it with a SELECT COUNT(*) I get about 200,000 rows. When I run the SELECT with the columns I want, I get about 2,700 rows. Is there something inherent with the queries that limits the result set size, or anything I can do to make sure I'm getting back all the results? Rather, than trying to run it about 100 times limiting all previously gotten accounts.

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Hi Folks,

I would like to visulaize the tables and data on Power BI, so I try to connect the romote server to Power BI to access the tables and data of remote server. I can able to connect that remote server to our Studio also able to view class files.
But I couldn't able to connect the remote server to power BI. I'm getting the below error while click on the tables

"Expression.Error: This native database query isn't currently supported"

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So I know we can run routines using both XECUTE or @
However both of them run slower than just running the routine without it. (that is because as far as i understand, XECUTE command for example will re-compile before running?)

the question is: how can I run a routine by name - and keeping the performance as good as possible?

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Question
· Oct 28
Load and compile error

Hello,

I am using the following:

s status = $SYSTEM.OBJ.Load("myClassName," "c")

and while trying to compile it i get an error that a property or method does not exist, more specifically:

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Question
· Jul 17, 2018
Cache Dynamic SQL Pagination

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()

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Hello Experts ,

Could you help to search message details based on MRN in intersytems iris.

We have created 100+ interfaces and currenly in live (interystems cloud) . Now I try to search message details based on MRN using below query. it is working fine in DEV. but in prod it is taking ages.

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I’m trying to connect to an InterSystems Caché database from my local development environment using an IPv4 address. Most examples I’ve found show how to connect using the ODBC driver with the localhost or the default IP address (127.0.0.1). However, I want to know how to connect using my local IPv4 address.

Here’s what I need help with:

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Hello,

I'm trying to carry a custom error from one business process to another.

BPL:LookupClass fails it's lookup and a custom error of "Lookup XYZ" is generated.

The class quits with that error, but upon quitting, the custom error gets wrapped in an Ensemble System error:

ERROR <Ens>ErrBPTerminated: Terminating BP LookupClass # due to error: Lookup XYZ

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I am experiencing an issue while executing a stored procedure in InterSystems Cache. Here’s the procedure I created

CREATE PROCEDURE Silk.sp_InsertRecord (
IN RecordDate TIMESTAMP,
IN UserName VARCHAR(50),
IN RecordType INT,
IN RecordID VARCHAR(50),
IN CategoryID INT,
IN ApprovalDate TIMESTAMP,
IN FileSize BIGINT,
IN WorkstationName VARCHAR(50)
)
BEGIN
INSERT INTO DummyRecords (
RecordKey,
FilePath,
RecordDate,
UserName,

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Hi,

I try to generate JWT tokens in Cache (not in IRIS).

In IRIS I managed to generate tokens using ##class(%OAuth2.JWKS).AddOct("HS256",secret,.jwks).

But In Cache there is no such routine.

Could you provide me a place to find an example how to use JWT, please ? I am interested to generate a token in Cache, send it to javascript client, and read a token provided by the client and check it is valid.

Kind regards,

Alin Soare.

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