#Caché

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

Documentation.

Article Developer Community Admin · Oct 21, 2015 1m read

Introduction

Because of increasing business and governmental pressures to integrate their operations, the financial services industry is developing a number of standards for data exchange and other common functions. Standards such as XBRL, FpML, MDDL, RIXML, and FIXML are all specialized dialects of XML (Extensible Markup Language). Any financial services application with good support for XML will be able to communicate effectively using one or more of the emerging industry standards.

Efficient data exchange increases the need for fast, scalable data persistence.

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Article Developer Community Admin · Oct 21, 2015 2m read

Executive Summary

For twenty years or more, large financial institutions have been locked in a battle between the need for extremely high performance transaction processing and the demands of downstream applications that can deliver competitive advantage if they can get real time access to this transactional data. When individual database servers could no longer handle simultaneous transaction and query workloads, many firms turned to replication, offloading data access onto read-only copies of production databases.

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Article Developer Community Admin · Oct 21, 2015 1m read

InterSystems has implemented a broad set of MultiValue extensions for its Caché multidimensional database. These extensions enable the migration of MultiValue applications to Caché and bring the full range of Caché object and SQL development technologies to MultiValue developers. The result: your existing MultiValue investments are preserved, you gain a broad spectrum of highly scalable deployment options, and your developers can combine the best of MultiValue, object, relational, and technologies to extend existing applications and build new ones.

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Article Developer Community Admin · Oct 21, 2015 1m read

Introduction

In today's world, an ever-increasing number of purchases and payments are being made by credit card. Although merchants and service providers who accept credit cards have an obligation to protect customers' sensitive information, the software solutions they use may not support "best practices" for securing credit card information. To help combat this issue, a security standard for credit card information has been developed and is being widely adopted.The Payment Card Industry (PCI) Data Security Standard (DSS) is a set of guidelines for securely handling credit card information.

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Article Developer Community Admin · Oct 21, 2015 1m read

InterSystems encourages the adoption of a flexible, practical approach to application development, rather than strict adherence to one of the prevalent development theories. This paper offers advice based upon our experience. However needs, attitudes, and styles vary; we recommend that each programmer choose the development approach that works best for them. Caché supports a wide range of development methodologies, not just those recommended here.

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Article Developer Community Admin · Oct 21, 2015 1m read

Using Intel® Advanced Encryption Standard New Instructions with InterSystems Caché Substantially Improves Encryption Performance and Reduces Computational Overhead

Executive Summary

Financial services companies have an ever-growing need to encrypt databases containing sensitive customer and trade data. However, using encryption on these databases can require significant computational resources, potentially impacting trading latencies.

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Article Developer Community Admin · Oct 21, 2015 1m read

Executive Summary

The best way to compare the performance of database products is in a head-to-head test using a real application, preferably one of your own. This is especially true when evaluating Caché's post-relational technology, because "standard" transaction processing benchmarking methodologies assume the restrictive "row and columns" format of a relational database. They cannot accurately predict the performance of real applications, which often use complex data models.

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Article Developer Community Admin · Oct 21, 2015 1m read

Abstract

The European Space Agency (ESA) has chosen InterSystems Caché as the database technology for the AGIS astrometric solution that will be used to analyze the celestial data captured by the Gaia satellite.

The Gaia mission is to create an accurate phase-map of about a billion celestial objects. During the mission, the AGIS solution will iteratively refine the accuracy of Gaia's spatial observations, ultimately achieving accuracies that are on the order of 20 microarcseconds.

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Article Developer Community Admin · Oct 21, 2015 1m read

Abstract

A benchmark of a real-world application, which loads data into a data warehouse for subsequent analysis, was performed. To conduct the benchmark, one module of the Oracle-based application was replicated in Caché ObjectScript. Only about 40 person-hours of work was required to duplicate the functionality of the original module in Caché.

The time required to complete certain tasks was measured running the Caché-based module, and was compared to existing data.

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Article Developer Community Admin · Oct 21, 2015 1m read

Introduction

If the administrators responsible for securing applications had their way, passwords would be long complex strings of random symbols, and users would memorize different passwords for every application they use. But in the real world, few people are capable of such prodigious feats of memory. The typical user can only remember a handful of relatively short passwords.

That’s why an increasing number of applications are requiring two-factor authentication.

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Article Developer Community Admin · Oct 21, 2015 3m read

Providing a reliable infrastructure for rapid, unattended, automated failover

Technology Overview

Traditional availability and replication solutions often require substantial capital investments in infrastructure, deployment, configuration, software licensing, and planning. Caché Database Mirroring (Mirroring) is designed to provide an economical solution for rapid, reliable, robust, automatic failover between two Caché systems, making mirroring the ideal automatic failover high-availability solution for the enterprise.

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Article Developer Community Admin · Oct 21, 2015 1m read

Introduction

This document is intended to provide a survey of various High Availability (HA) strategies that can be used in conjunction with InterSystems Caché, Ensemble, and HealthShare Foundation. This document also provides an overview of the various types of system outages that can occur, as well as how each strategy would handle a given outage, with the goal of helping you choose the right strategy for your specific deployment.

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Article Developer Community Admin · Oct 21, 2015 1m read

Introduction

Impedance mismatch is a term commonly used to describe the problem of an object-oriented (OO) application housing its data in legacy relational databases (RDBMS). C++ programmers have dealt with it for years, and it is now a familiar problem to Java and other OO programmers.

Impedance mismatch arises from the inherent lack of affinity between the object and relational models.

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Article Developer Community Admin · Oct 21, 2015 2m read

InterSystems Caché 2015.1 soars from 6 million to more than 21 million end-user database accesses per second on the Intel® Xeon® processor E7 v2 family compared to Caché 2013.1 on the Intel® Xeon® processor E5 family

Overview

With data volumes soaring and the opportunities to derive value from data rising, database scalability has become a crucial challenge for a wide range of industries. In healthcare, the rising demands for healthcare services and significant changes in the regulatory and business climates can make the challenges particularly acute.

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Article Developer Community Admin · Oct 21, 2015 2m read

Providing a reliable infrastructure for rapid, unattended, automated failover

Technology Overview

Traditional availability and replication solutions often require substantial capital investments in infrastructure, deployment, configuration, software licensing, and planning. Caché Database Mirroring (Mirroring) is designed to provide an economical solution for rapid, reliable, robust, automatic failover between two Caché systems, making mirroring the ideal automatic failover high-availability solution for the enterprise.

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Article Developer Community Admin · Oct 21, 2015 1m read

Abstract

A global provider of mobile telecommunications software tested the performance of InterSystems Caché and Oracle as the database in a simulated data mart application. They found Caché to be 41% faster than Oracle at building a data mart. When testing the response time to SQL queries of the data mart, Caché's performance ranged from 1.8 times to 513 times faster than Oracle.

Introduction

Telecommunications companies, because they generate and must analyze enormous amounts of information, are among the most demanding database users in the world.

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Article Developer Community Admin · Oct 21, 2015 1m read

Introduction

With the maturation and wide acceptance of Java, object-oriented programming has moved to the foreground of the application development landscape. Because of their rich data models and support for productivity-enhancing concepts such as encapsulation, inheritance, and polymorphism, object technologies like Java, C++, and COM, are favored by today's application developers.

However, much of the world's data still resides in relational databases.

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Article Developer Community Admin · Oct 21, 2015 1m read

Introduction

Experts estimate that 85% of all data exists in unstructured formats – held in e-mails, documents (contracts, memos, clinical notes, legal briefs), social media feeds, etc. Where structured data typically accounts for quantitative facts, the more interesting and potentially more valuable expert opinions and conclusions are often hidden in these unstructured formats. And with massive volumes of text being generated at unprecedented speed, there’s very little chance this information can be made useful without some process of synthesis or automation.

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Article Eduard Lebedyuk · May 9, 2017 6m read

Introduction

If you manage multiple Caché instances across several servers, you may want to be able to execute arbitrary code from one Caché instance on another. System administrators and technical support specialists may also want to run arbitrary code on remote Caché servers. To address these needs, I have developed a special tool called RCE.
In this article, we will discuss what are the typical ways of solving similar tasks and how RCE (Remote Code Execution) can help.

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Question Alexey Maslov · May 11, 2017

Since most of our customers moved to Cache 2015.1, I found some admins abused with CPUPct warnings (sometimes alerts) in console log without other signs of lacking CPU power.
Documentation states that:

          CPUPct               job_type              CPU usage (percent) by all processes of the listed job type in aggregate       

What does it really mean?
E.g., if total system CPU usage is 25%, and all running processes are of the same type (e.g, CSPSRV), would CPUPct be equal to 100%? If so, why this case should be a reason for alert?

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Question Stella Ticker · Jul 7, 2017

There is a need to send a SAML token from a local cache web application to an external web application in order to grant these cache web app users access to the external web app. Is it possible to use SOAP SAML token functionality to do IDP initiated authentication with Cache acting as the IDP server? The example in this online course shows a code snippet of the service web method that adds  the token to the outbound SOAP message. So I am assuming , this would be returned to the client in response to a client request of some sort.

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Article GUILHERME CRUZ DA CUNHA · Jun 14, 2018 3m read

Let's create a class in Caché that will represent a teacher registry of a
University:

The name of our class will be Professor. Let's create it on
university package. To do so, make sure that your Caché
is in the Air (the small cube in your System Tray should be blue) and
right-click it, then click the
Studio, as shown in Figure 4.
When Caché Studio opens, make sure that you
is in the USER namespace. Just go to the File menu, and select the
Change Namespace option. Choose the USER namespace and press
OK.

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Question PILAR GUERRERO · Jun 26, 2017

Hello,

I have a problem when i take the adapter: EnsLib.FTP.OutboundAdapter. 

I want to write a file, but if the file already exist using the method ..Adapter.PutStream(name,file) and in my setting "overwrite" is true. FTP response me this message:

<descripcion><![CDATA[ERROR <Ens>ErrFTPPutFailed: FTP: error al colocar archivo '803430600001072790112416-19941214-1233287355C-347.pdf' (mensaje='Error in SFTP Put('D:\Ensemble\ABC\NAMEAPP\NAMEAPP_G\stream\HnhZ32Fb1WDatA.
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Article Peter Cooper · Mar 18, 2018 1m read

Index to Articles

Hi All 

In this article I will showcase one of my clients applications built in ZEN.  It is what I need to replace with a new UI as ZEN is no longer being developed

This application has been created for a single client who has unique business requirements - hence the bespoke development based on Caché ZEN
It is:-

  • Large(ish)
  • Supports and Implements Complex Business Processes
  • Secure
  • Multi Lingual
  • Reasonable size of development stack
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