New post

#Caché

57

  

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

Documentation.

Article
· Feb 14, 2017 1m read
Portal tip: Feel at home on the Home page

Until recently I didn't pay much attention to Portal's home page:

If it's not showing when you initially launch Portal you can easily jump to it using the button / tab at the top of the left-hand column of options. And later during your session, get there via the Home link that will be visible at the top of every page.

On the Home page the "Recent" section is automatically maintained for you.

3 0
0 400
Question
· Feb 13, 2017
Connecting using factory

The following code in .Net using CacheObject.dll version 2016.1.2.206 com library

ConnectionString = "cn_iptcp:10.56.135.160[1972]:PHDEMO:PHSYSADM:***********"

b = factory.Connect(ConnectionString )
objCacheObject = factory.Static("CacheObjectConnection")
clist = factory.GetConnectionList()

for the above code, b is true and clist is Local,cn_iptcp:127.0.0.1[1972]:

0 1
0 430

IO devices can be assigned to a mnemonic space using, for example:

u device::"^%X364"

Is there a method that will return the assigned mnemonic space for the current device?

I can infer it by attempting to write to the device using a non existent write /mnemonic and then inspecting the error returned, but this is rather messy and could potentially affect the status of the device. For example:

0 2
0 286

I have a web application with html, css, js files (no ZEN/CSP).

Problem: after I update them on a server, Caché still servers old and cached version (browser Cache is disabled).

There is a manual cache purge in Gateway Settings, of course, but is there an automatic solution?

I'll be okay with disabling cache server-wide, but an application-wide solution would be better.

I don't want to host web app on a separate web server.

Here's my web app config:

0 5
0 2K

For reasons that I won't go into here, I need to run Cache Terminal in Linux using Wine.

It starts up ok, but when I try to establish a connection to a remote server I get the following error:

Ctermsecure Read Error
Could not obtain terminal server client name.
Reason: (10035, 0x2733) unknown error

If I launch CTerm.exe from a command line then I get the following:

0 3
0 812

In last week's discussion we created a simple graph based on the data input from one file. Now, as we all know, sometimes we have multiple different datafiles to parse and correlate. So this week we are going to load additional perfmon data and learn how to plot that into the same graph.
Since we might want to use our generated graphs in reports or on a webpage, we'll also look into ways to export the generated graphs.

5 0
0 931

I created a new class DSW.Addons.htmlViewer:

Class DSW.Addons.htmlViewer Extends %DeepSee.Component.Portlet.abstractPortlet
{

Property Data As %String;

ClassMethod %OnGetPortletSettings(Output pInfo As %List, ByRef pSettings) As %Status
{
    Kill pInfo
    Set pInfo(1) = $lb("Data", , , "Data", "Data setting")
    Quit $$$OK
}
}

It's a ZEN component and DeepSee portlet. It's immediately available in the namespace I created it in. DSW package is mapped to %ALL and to Samples, but if I try to create a widget with this portlet I get ZEN class not found error.

1 2
0 310

Hi

I created a jdbc connection in the Caché 2010.2.3 with SQLServer 2008R2.

The connection to this DB works correctly. (Conection Sucess)

I try to perform table binding but this connection, even though it is successful, does not load my tables and schemas.

I did the same test on Caché 2015 , with same jar drivers files and works perfectly!

Any idea?

Caché 2010.2.3

Red Hat Enterprise Linux Server release 6.2 (Santiago)

java version "1.7.0_09"

Caché 2015

0 2
0 533

I have the following query which tells me how many documents were retrieved for each customer, but it only works for the "on-demand" customers:

SELECT PatientFacility, LEFT(LocalDateTime,7) as Mnth, Count(*)
FROM HS_IHE_ATNA_Repository.Aggregation
WHERE EventType IN ('RecordRequest','RecordRequestBreakGlass')
AND LocalDateTime >= '2016-01-01'
AND LocalDateTime < '2017-01-01'
GROUP BY PatientFacility, LEFT(LocalDateTime,7)
0 4
0 374

If I were trying to access an index of a global variable, what time complexity would this operation have? My understanding of languages like Java/C++ is that arrays are stored as blocks of memory so that x[15] would have a lookup time complexity of O(1) because it just goes to (address of the array + 15) and retrieves the value stored there.

How does this work in Cache where the index of a variable isn't necessarily an integer value? If I were to have a variable like the following:

x("Adam") = "Red"

x("George") = "Blue"

x("Bryan") = "Green"

etc...

3 5
0 483
This is the second part of my long post about package managers in operating systems and language distributions. Now, hopefully, we have managed to convince you that convenient package manager and rich 3rd party code repository is one key factor in establishing of a vibrant and fast growing ecosystem. (Another possible reason for ecosystem success is the consistent language design, but it will be topic for another day.)
6 23
1 1.3K

Hi,

I have downloaded an evaluation copy of Cache and installed on a Windows 2016 R2 machine. I wanted to Configure different locations for DAT, WIJ, and Journal files but the installation process didn't give me such a "custom" option. I do see that the installation guide mentions the presence of such an option so I am wondering if this is a limitation of evaluation copies. Can someone please confirm?

0 6
0 331

Back in my COBOL days, there was a utility that would analyze running COBOL code and expose bottle necks and those modules that were inefficient or were executed multiple times. This was to help the programmer know where to concentrate streamlining efforts.

Is there any such utility for Caché Routines?

0 4
0 347

I am in the planning stages of making things more uniform in our routines and I would like to know what the easiest way would be to include an .inc at the beginning of each .mac routine. Has anyone written something that would open all routines and place something into the first row while leaving the rest of the routine unchanged? Thanks for any guidance you all may provide.

0 3
0 330

Points to remember before you start:

  1. It is not possible in a COS (Caché Object Script) job/process context to have multiple Named Pipes. It is a one Named Pipe per job/process limited line of communication.
  1. Named Pipes, in Caché, like most pipes on most operating systems are Unidirectional. That means you open them for either Read or Write, but not both.
3 0
0 680

Well I want to set the type of a piece in a global as a String, because when I use float numbers , the system parse them to numbers instead of use like strings and thats a little bit tricky with the sorts

Here is a code example:

ACB>s ^a("1.0012")=""// that is going to be stored as a number

ACB>s ^a("1.0011")="" // that is going to be stored as a number

ACB>s ^a("1.0010")="" // that is going to be stored as string

ACB>zw ^a

^a(1.0011)=""

^a(1.0012)=""

^a("1.0010")=""

0 2
0 270

The class %Compiler.UDL.TextServices arrived in 2015.1, bringing us methods for exporting a class in UDL format (i.e. looking just like we're used to seeing it in Studio), and importing a UDL format definition back into a namespace. Some source control tools including our Deltanji are now able to use UDL format, resulting in diffs that are easier to understand.

1 1
0 305

Per the information at http://docs.intersystems.com/latest/csp/docbook/DocBook.UI.Page.cls?KEY=... I am trying to use a call to $ZF("GETFILE") to obtain information about an OpenVMS file. But I get an <ILLEGAL VALUE> error.

For example:

w $zf("GETFILE",filename,"UIC")

reports:

<ILLEGAL VALUE>

My filename variable contains the full path and name of a file that I own. I hold the %All role in Cache.

0 4
0 462

Hi-

Im curious if there is any specific configuration that has to be done on an IIS web server to serve up RESTful web services.

I have a server that has IIS installed, with the CSP gateway. a second server that has Cache installed on it.

I have configured a web application using the Cache System Management Portal for the web services that has a dispatch class pointing to my dispatch class.

I have created an application mapping in my CSP Gateway Management Portal on the web server such that url's with /webservices prefix are routed to my cache server.

0 1
0 3.5K

Hi,

Initially when setting up a cache instance one creates or imports the user/ resources roles etc .

After the Mirror has been activated you can add users, resources etc. But when trying to add new SQL Table privileges to a namespace where the databases are mirrored it seems that you are not able to , Getting error:

ERROR #5002: Cache error: <DIRECTORY>SQLUserPrivsExecute+13^%SYS.SQLSEC

SOURCE ELEMENT: %CSP.UI.Component.SQLTables (SQLTables)


How do you maintain these privileges?

0 1
0 329

I'm having trouble creating a view in cache with query like:

SELECT column1, column2, column 3
FROM table
WHERE
(column1, columnn 2) IN (SELECT c1, c2 FROM table2 GROUP BY c1)
ORDER BY column1

I think the problem is in where clause, because it cannot take two columns .

the exact error: [SQLCODE: <-1>:<Invalid SQL statement>] [%msg: < ) expected, , found^ (column1,>]

Any idea on how to solve this?

Thank you.

1 3
0 108.8K