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#SQL

16

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

I have table

CREATE TABLE nodes (
        name VARCHAR(50) NOT NULL, 
        parent VARCHAR(50), 
        PRIMARY KEY (name), 
        FOREIGN KEY(parent) REFERENCES nodes (name) ON UPDATE cascade
);

I put some data

INSERT INTO nodes (name, parent) VALUES ('n1', NULL);
INSERT INTO nodes (name, parent) VALUES ('n11', 'n1');
INSERT INTO nodes (name, parent) VALUES ('n12', 'n1');
INSERT INTO nodes (name, parent) VALUES ('n13', 'n1');

Let's delete all

DELETE FROM nodes;

Nope, no way.

SQL Error [124] [S1000]: [SQLCODE: <-124>:<FOREIGN KEY constraint failed referential check upon DELETE of row in referenced table>]
[Location: <ServerLoop>]
[%msg: <At least 1 Row exists in table 'SQLUser.nodes' which references key 'NODESPKey2' - Foreign Key Constraint 'NODESFKey3', Field(s) 'parent' failed on referential action of NO ACTION>]

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Hello DC Members,

Please welcome the new video on InterSystems Developers YouTube:

⏯ Ten Times Faster Queries with Columnar Storage @ Global Summit 2022

https://www.youtube.com/embed/lcEUPPKU6OY
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Hello,

searching messages in our Message Bank is quite slow, often runs into timeout.

I wanted to perform a tune table on Ens_Enterprise_MsgBank.MessageHeader because this apparently has not been done yet - the Tune Table utility shows no entries for selectivity, etc.

I tried

 w $SYSTEM.SQL.Stats.Table.GatherTableStats("""Ens_Enterprise_MsgBank"".MessageHeader")

and got this error message

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I have a table, with autoincremented id

CREATE TABLE users (
    id SERIAL NOT NULL,
    name VARCHAR(30) NOT NULL,
    PRIMARY KEY (id)
)

I can add a new item there with an explicit id 

INSERT INTO users (id, name) VALUES (2, 'fred')

And while my id is autoincremented, I can omit it

INSERT INTO users (name) VALUES ('ed')

So, this time, I don't know the id, and I want to somehow get it.

I could do it with LAST_IDENTITY() function, but it just uses %RowID, and have no relation to the primary id

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Hello Community,

We're happy to announce that the InterSystems IRIS, IRIS for Health, HealthShare Health Connect, & InterSystems IRIS Studio 2022.2 is out now!

And to discuss all the new and enhanced features of it we'd like to invite you to our webinar What’s New in InterSystems IRIS 2022.2.

Image

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Hi Community,

In this video, you will learn about exciting new ways to perform analytics using data in your HL7® FHIR® repository:

⏯ InterSystems IRIS FHIR SQL Builder: Sneak Peek @ Global Summit 2022

https://www.youtube.com/embed/lCv5t4785JY
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In Cache 2018, we were using a macro in a query that looked like this:

select $$GetExtraSQL^GetExtra('B',bddtl.odnumb,bddtl.odsnum,bddtl.oddsc1) as "Description", * from sqluser.bddtl

We could save that query as a view, and there was no problem with it.

In IRIS, if we put that query into SQL in the management portal, it still works, but if we save that query as a view, when we try to run a query on that view, we get a big error message:

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This is not an issue in ObjectScript, due to its typeless nature. But it's essential for external programming languages that care a bit more about types of variables.

And in any case, it's still reproducible in ObjectScript. I have table

CREATE TABLE some_table (
        id INTEGER NOT NULL, 
        x INTEGER, 
        y INTEGER, 
        z VARCHAR(50), 
        PRIMARY KEY (id)
)

And data

INSERT INTO some_table (id, x, y, z) VALUES (1, 1, 2, 'z1');
INSERT INTO some_table (id, x, y, z) VALUES (2, 2, 3, 'z2');
INSERT INTO some_table (id, x, y, z) VALUES (3, 3, 4, 'z3');
INSERT INTO some_table (id, x, y, z) VALUES (4, 4, 5, 'z4');

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I just wrote up a quick sample to help a colleague load data into IRIS from R using RJDBC, and figured it's worth sharing here for future reference.

Ultimately it was pretty simple, aside from IRIS not liking "." in column names; the workaround is to just rename the columns. Someone better at R than me could probably provide some generic approach. smiley

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Trying to identify which records in the %SYS.Audit table are fails.

Eg, as user "WORKER", I run an attempted a grant, the terminal returns:

SQL> GRANT SELECT ON newschema.patients TO COORDINATOR
[S1000][Iris ODBC][State : S1000][Native Code 112]
[libirisodbc35.so]
[SQLCODE: <-112>:<Access violation>]
[Location: <ServerLoop>]
[%msg: <User WORKER does not have required privileges to grant the privilege(s)>]
[ISQL]ERROR: Could not SQLExecute

but the record in the audit table gives

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On the Latest GlobalSummit 2022, InterSystems Introduced Cloud SQL. So, you may have lightweight InterSystems IRIS with access to SQL only. Well, what if you would still need some Interoperability features in the cloud as well? There are various solutions on the market nowadays, which offer a bunch of integration adapters out of the box and can be extended with support from the community. Some time ago, I've implemented an adapter for the Node-RED project, which can be deployed manually everywhere you want. Now I would like to introduce a new integration with my recent discovery, n8n.io

Banner image

n8n.io is a workflow automation platform, that supports over 200 different integrations out of the box and from a community, and now including InterSystems IRIS.

Open Exchange app
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Article
· Sep 13, 2022 8m read
CI/CD with IRIS SQL

In the vast and varied SQL database market, InterSystems IRIS stands out as a platform that goes way beyond just SQL, offering a seamless multimodel experience and supporting a rich set of development paradigms. Especially the advanced Object-Relational engine has helped organizations use the best-fit development approach for each facet of their data-intensive workloads, for example ingesting data through Objects and simultaneously querying it through SQL. Persistent Classes correspond to SQL tables, their properties to table columns and business logic is easily accessed using User-Defined Functions or Stored Procedures. In this article, we'll zoom in on a little bit of the magic just below the surface, and discuss how it may affect your development and deployment practices. This is an area of the product where we have plans to evolve and improve, so please don't hesitate to share your views and experiences using the comments section below.

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How can we insert into a table using a stored procedure?

Table structure :

CREATE TABLE SampleHospital (
Hospital VARCHAR(50),
Location VARCHAR(50),
UserName VARCHAR(50),
UserFullName VARCHAR(70),
LastLogin TIMESTAMP,
LoginCount int)

Procedure Name:

call Custom_MENS_Other.samplesp('2021-11-02','2021-11-04','H001')

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Hi,

I am trying to input an entire xml into a sql server table. I am doing this via an operation in Ensemble.

I keep getting the following error

[SQL Server]XML parsing: line 0, character 0, unrecognized input signature

I have setup the table with a column parameter XML.

Here is the request object that is being sent to the store procedure

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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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In this article you will have access to the curated base of articles from the InterSystems Developer Community of the most relevant topics to learning InterSystems IRIS. Find top published articles ranked by Machine Learning, Embedded Python, JSON, API and REST Applications, Manage and Configure InterSystems Environments, Docker and Cloud, VSCode, SQL, Analytics/BI, Globals, Security, DevOps, Interoperability, Native API. Learn and Enjoy!

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I'm getting wrapped around the axle with CAST and CONVERT and can't seem to find a way to do this (short of adding a stored procedure wrapping $zdt($zdth(posix,-2),3), which I'm refusing to do on principle, because there has to be some way to make this work).

Any ideas?

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