#Caché

[Background]

InterSystems IRIS family has a nice utility ^SystemPerformance (as known as ^pButtons in Caché and Ensemble) which outputs the database performance information into a readable HTML file. When you run ^SystemPerformance on IRIS for Windows, a HTML file is created where both our own performance log mgstat and Windows performance log are included.

Hello community,

Just wanted to share..

Hi all,
I am trying to execute a query like the below code.
set statement = ##class(%ResultSet).%New("some_class:query_method"). // here query method is empty and with rowspec some columname

statement.Execute(param1)

I want to fetch data type of column value returned from above. eg - Name - VARCHAR, amount - INTEGER etc.
How can I get it. Or if not possible directly. Is there any other way to validate or get datatype of values returned. Line we have type() in python3

InterSystems FAQ rubric

In the sample below, an image file is encoded into a Base64 string in a class property, saved, decoded again with Base64, and restored to another file.

【Usage class】

Class User.test Extends %Persistent
{
Property pics As %GlobalBinaryStream;
}

【When importing】

Hi,

We have a global with 65 million entries. All we are doing is just iterating through each entry to find out the total no of entries. It is currently taking 110 minutes. Is this something normal? What can we do to speed up this process? Below is the program for just iterating each entry in the global.

s sub=" ,count=0
f{
s sub=$o(^YYY(sub)) q:sub=""
s count= count +1
}
w!, "Total Count:"_ count

We have a service account that is running queries to pull some data. It has read only access to the tables, but, unfortunately, the tool is starting a transaction before it reads the database. The query takes more than 20 minutes (21 - 23 minutes), so we're getting the console message that the transaction is open longer than 20 mins. Is there a way to prevent a user/service account from being able to start a transaction since it only has read access to all of the tables in the database?

I need to develop a tool to help to get what data is being consumed by a certain process, in order to get all data used to build an automated test scenario.

For example, some user process will pull data from ^GLOBAL(1)="dataString", ^GLOBAL(2)="dataString2", ^GLOBAL1(1)="data1String", ^GLOBAL2(4)="data2String4". Amidst all other data on these Globals, I will ignore everything that was not used in the user process, and get the specific keys used on it.

InterSystems FAQ rubric

When executing OS commands, use $ZF(-100).

InterSystems FAQ rubric

You can avoid the error by specifying a stream object as the argument of %ToJSON() used when generating a JSON string from a dynamic object.

A code example is below.

After installing IRIS 2023.1 on a live copy of our production machine our REST Service now consumes a CSP Session with every request. The request is handled as expected, but uses one of the 5 CSP Session per license. So after 25 requests, the license is used up. The Grace time always shows 0 and the session stay for very long. (Maybe the 900 Seconds timeout).
On Caché 2018, we had the same settings for the Webapp and there, only a single Session was set for all requests. The Caché request didn't use any cookies.

Hi,

An exception occurs randomly.
I expect the value of ^TEST to be 20, but it's not.
Did i miss something like closing, flush the stream or locking the global?

Exception

%SaveData+15^%Stream.GlobalCharacter.1×PRAX1Í+^%SaveData+15^%Stream.GlobalCharacter.1^1)e^%SerializeObject+6^%Stream.Object.1^2e^%Save+9^%Stream.Object.1^93e^zCopyFromAndSave+58^%Stream.GlobalCharacter.1^1e^test+11^ry^1e^test+3^ry^4d^^^0

Testcode

Hi,

Any examples please of connection a Delphi 11 Front end to a Cache database?

I can get it to connect but then when I try and view data it fails

4 fields in front end

SERVER = 127.0.0.1

PORT = 1972

NAMESPACE = DROP DOWN LIST (I SELECT "DEVELOP" FROM THE LIST

EDIT_CLASSNAME = Default value is Test (with maybe 3 fields just of random stuff)

InterSystems FAQ rubric

By specifying the start and end values ​​of the IDs for which you want to rebuild indexes in the arguments of the %BuildIndices() method provided in the persistent class (=table) definition, you can rebuild only the indexes within that range.

in Management Portal on Freespace screen there are links to compact and truncate a database.

Can these tasks be done programmatically? I have looked through documentation and dont see anything but I hope I just missed it.

Thanks,

David