Search

Clear filter
Article
Dmitry Maslennikov · Sep 18, 2023

Vectors support, well almost

Inverted file index The search just will use the created index and its algorithm will find the requested information.
Question
Drew Holloway · Mar 12, 2020

How to search all tables for specific column in Intersystems Cache database

indeed, system schemas (whose name starts with a % sign) require certain privileges (that you quickly get used to once you have them :-) ).
Question
Arto Alatalo · Apr 29, 2020

OpenId() is slow, why?

The name of the <index>Open method is based on the name of the index. I suspect that in one case the name of the IDKEY index is "IDKEY" and in another it is "idkey".
Question
Mark OReilly · Jul 3, 2023

How does the front end of the portal look up the message head ID so quickly

The idea is to use index and the fastest index in MessageHeader is %ID.
Question
Alexander Brown · Feb 6, 2017

Lookup Time Complexity of a Global

Would the lookup operation scale with the size of the array such that the variable is iterated through until the given index meets the current index, yielding a O(n) lookup?
Question
Virat Sharma · Jan 24, 2023

SQL Query needs optimization

the index.,
Question
Scott Roth · Sep 2

SearchTable properties not populating

This process enables the system to index messages using your newly added properties, replacing old indexed fields.
Question
Jose Antonio Cañizares · Apr 1, 2016

How to extract column sorting of %ZEN.tablePane with or without snapShot

Set tSub2 = $Order(@tIndexGlobal@(tSub1,tSub2),tSortOrder) // If we previously were on the last value for the index key, move on to the next index key.
Article
Yuri Marx · Jan 16, 2021

Creating and listing XData definitions

for property DOB Index DOBIndex On DOB; ClassMethod AddTestData(amount As %Integer = 10) { d ..Populate(amount) } /// Documentation for Person XData PersonDocHtml
Article
Danny Wijnschenk · Nov 14, 2017

Advent of Code 2016 Day14: One-Time Pad

If countKey = 64 Quit } } } Write "Index = ",index,! } Catch { Write "Error : ",$ZError,!
Discussion
Sylvain Guilbaud · Feb 21, 2022

How to efficiently store historical data, similar to current data, without mixing physical storage ?

Old versions are only indexed on the parent field. Why together ? ? ? Who wants that ? ? ? Where ? ? ?A simple MERGE ^archive(....)=^source(....)
Question
Stefan Schick · Mar 24, 2022

Howto add / remove searchtable items

indexValue On (PropId, PropValue, DocId) [ IdKey, Unique ]; Index indexDocId On (DocId, PropId, PropValue) [ Unique ]; XData SearchSpec [ XMLNamespace = "http://www.intersystems.com
Article
Iryna Mykhailova · Aug 15

A beginner's guide to creating SQL tables and seeing them as classes

Do not edit the SqlName of this index.
Question
Jack Rack · Oct 11

How can I implement an efficient multi-shard SQL query in an InterSystems IRIS sharded cluster?

**Define Optimal Indexes**: Use indexing methods tailored to query patterns: - Standard indexes for commonly queried columns.