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#SQL

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SQL is a standard language for storing, manipulating and retrieving data in relational databases.

Hi!

I have a question regarding SQL insert/update from the mananger portal's SQL window.

I am trying to do an insert with a value that contains multiple spaces ($32) between two words. This is needed for a comparative reason. But the spaces are automatically trimmed away all the time. How should I write to keep these?

Example:

Insert into TableA
(MyColumn) Values('xxxx yyyy')

then the spaces are trimmed away and it becomes: 'xxxx yyyy'

But I want to keep the spaces. How do I get around the problem?

Regards,
Michael

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II try to explore the new SQL LOAD DATA feature in SQL comparing it to SQL INSERT

I'm stuck at this point: INSERT INTO <table> (columns...) VALUES (.....)
allows having not just simple column references but also ALL Standard SQL FUNCTIONS (at least)
example:

INSERT INTO Test (ShortName,DOB) VALUES (SUBSTRING(Name,1,4),TO_DATE(displayDate,'MM-DD_YYY'))

This works perfectly.
BUT the same VALUE clause applied to LOAD DATA fails in various ways:

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Hello everyone

I am new to cache. In an interview i was asked how to optimize a sql query.

I just said I will create index on conditions which are present in where clause. But as per interviewer I should check How query plan is getting executed. This will help in optimizing Sql queries.

I want to know what will be the answer for how to optimize SQL query in cache.

Thanks in advance!!

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Question
· May 27, 2021
JDBC counts don't match

I'm using a JDBC driver to connect PGSQL -> Cache. I'm noticing when I run SELECT queries and COUNT(*) command against the same table, I get different result sets. I'm pretty new to Cache in general - so I'm trying to understand why these would be different.

Examples (TransID and InvNum should occur in every "row"):

SELECT COUNT(*) FROM ACCT.Services = 1,090,324 WHERE ACCT.Dept = 483

SELECT TransID FROM ACCT.Services = 1,085,776 WHERE ACCT.Dept = 483

SELECT InvNum FROM ACCT.Services = 586,023 WHERE ACCT.Dept = 483

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Does anybody know if there is an easy way to know if the execution of the command $System.SQL.PurgeForTable went well/wrong?

The documentation describes that a string is returned, but in fact there is a nice Quit "" in the code.

Maybe inside PurgeForTable^%apiSQL there is any process variable set when it goes well/wrong?

Thank you very much!

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Hi Developers,

Hit play on the new video on InterSystems Developers YouTube:

⏯ Columnar Storage - The Lean Data Warehouse @ Global Summit 2023

https://www.youtube.com/embed/3BivXX1gImQ
[This is an embedded link, but you cannot view embedded content directly on the site because you have declined the cookies necessary to access it. To view embedded content, you would need to accept all cookies in your Cookies Settings]

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In show Query messages in the message viewer the head.%Id is always used. How do you do this via your own sql/objectscript as fast as the portal does a search as using dates searching Ens.MessageHeader on portal is slow.

For instance if you try do a search saying (TimeProcessed >='2023-06-01 00:00:00.000' and TimeProcessed <'2023-06-02 00:00:00.000') it is slow but using the portal the search would know this is head.%ID >= 5344549861 AND head.%ID <= 5347641372. How do you utilize this in your own queries as can't see the logic in EnsPortal.MsgFilter.Assistant

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In Oracle database, the synonym is an alternative name for objects such as tables, views, sequences, stored procedures, and other database objects.

You generally use synonyms when you are granting access to an object from another schema and you don't want the users to have to worry about knowing which schema owns the object.

Is IRIS SQL sintax has something like this: (oracle sintax)

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Hi,

The question is about queries on the System->SQL page. I have a class with a few columns on a global and the test output looks as expected, below. This works as expected as well returning a single row: select * from Utils.RoutineAuditReport where counter=4. However, other columns give an odd error like " Field 'AG' not found in the applicable tables^ SELECT * FROM Utils . RoutineAuditReport WHERE UserR = "AG". As you can see below, both the UserR column and the AG entry in it do exist. What could be the problem?

Thanks in advance,
Anna

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Is it planned that LOAD DATA takes into account several DATE/DATETIME formats with, for example, a parameter indicating the format used in the source data?

example :

LOAD DATA .../...
USING
{
  "from": {
    "file": {
       "dateformat": "DD/MM/YYYY"
    }
  }
}
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Question
· Nov 29, 2023
Cloud SQL

I want to connect the app to Cloud SQL but when I registered and created the deployment (trial) I got the error:

Did anybody face such an error?
During the creation of an account, there was a message like 'username is taken' but the account have been created anyway. Maybe it could cause this problem.

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Currently, the SQL privileges (SELECT, INSERT, UPDATE, DELETE) are managed at the tables level, which can be very tedious when you have to administer many roles in an organization, and need to keep them sync with a constantly evolving data models.
By managing privileges at the schemas level, will allow to give SELECT and other DML privileges to *all* or *several schemas* to a role|user, fixing the need to manually synchronize the new tables|views to the roles.

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So I am working with an inherited SQL query that queries 8 different tables. 5 of which have over a million records.
I have 3 different servers.

Server 1, Server 2 and Server 3. They all have the same data/tables/structure across all servers.
Server 3 has an Iris database engine and the other 2 are Cache 2015.1.4.

I have a problem with views and performance across the servers being inconsistent.

Thankfully Server 1 is the current live server that performs "fast enough".
Server 2 is being synced from Server 1 and acts as a report server.

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Hey Developers,

Enjoy watching the new video on InterSystems Developers YouTube:

⏯ InterSystems Cloud Services - InterSystems IRIS SQL & IntegratedML @ Global Summit 2023

https://www.youtube.com/embed/jjYnVsF9xeI
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Hello everyone!

Some time ago, I changed the configuration in SQL Runtime Statistic to "Turn on Stats code generation to gather stats at the Open and Close of a query". With this change, the CACHE base (cache/mgr/cache/) has grown a lot to reach 198GB.

Yesterday, I returned the configuration of SQL Runtime Statistic to the default which is "Turn off Stats code generation" and the cache base is no longer growing.

My question is?

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When I use Escape logic when inserting or updating Oracle Table I'm getting Max-Length exceeded error. With the original value the length is good but after I add Escape Logic, it causes value to be greater than max-length. The original value was "I visited O'Brien before heading out of town." and after added Escape logic it was "I visited O''Brien before heading out of town." Max-Length is 45.

INSERT INTO MyText
    (text)
VALUES
    ('I visited O''Brien before heading out of town.')
                 /\
             right here

Any ideas around this?

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Hello Everyone,

The Certification Team of InterSystems Learning Services is developing an InterSystems IRIS Developer Specialist certification exam, and we are reaching out to our community for feedback that will help us evaluate and establish the contents of this exam.

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Question
· Mar 3, 2023
? %QUERY Wizard in VSCode ?

For my recent tutorial, I used %Query Wizard of Studio.

Could any of the VSCode experts please show me how to generate

Query Statement with input parameters, CONTAINID , ROWSPEC
and the required class methods
- <queryname>Execute()
- <queryname>Fetch()
- <queryname>Close()

I was just not able to do it.
​​​​​​​

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