#JDBC

Ran into an issue with our upgrade from HealthShare Health Connect 2018.1.3 to IRIS HealthShare Health Connect 2022.1, that I thought I would reach out about, I already have a ticket open with WRC and started a chat on Discord. We have a couple of MS SQL tables that I have setup as Linked Tables within Cache to query NPI, Patient Account Information, Visit information, etc.

Hello all,

I'm trying to setup the JDBC Gateway Server so customers can connect to IRIS remotely using JDBC and not ODBC. But I'm facing a problem connecting, as our system department tells me IRIS is using the loopback address (127.0.0.1) and that makes remote systems cannot connect to port 53773 (the default port for that).

So, I would like to change this 127.0.0.1 host for the hostname but I cannot see where to do it:

Anyone with experience here to help me? :-)

Thanks a lot

I have a business service that actively reads data from a remote Postgres database. OnProcessInput opens a XDBC (actually JDBC) connection, executes an SQL query, fetches several thousand rows, iterates the resultset, and closes the connection. On each iteration I also need to update each source row in the remote database using PreparedStatement.

In other words, in every OnProcessInput call I have a long running SELECT statement and several thousands small UPDATE statements.

Has anyone successfully tested the new THROUGH command in IRIS 2024.2 with a FOREIGN SERVER?https://docs.intersystems.com/iris20242/csp/docbook/Doc.View.cls?KEY=RS…

I have connected from a Docker instance to a VM. I was able to successfully set up the JDBC connection through the UI.

I then configured a foreign server with this connection:

But I am unable to send a SQL 'THROUGH' to the DB. I always get a:

I've get the same message if i try it via Management Portal.
I've also tried this:
and this

Always with the same error.

Hi! I am working in a java project (Spring Boot+ Maven + Hibernate) using jpa/hibernate to manage the persistance with the IRIS database from the Docker image (store/intersystems/iris:2019.2.0.107.0-community) and I've found an issue using the IRIS instance, when I define tables with relationships OneToMany, ManyToOne or ManyToMany and I try to fetch all the rows of the tables using the default method findAll (JpaRepository implements that method to get all the rows by default) the query automatically exceeds the limit of licenses availables.

The current jdbc driver version is 3.1.0, but it is not published in the public mvn repository, only the old version, see:

https://mvnrepository.com/artifact/com.intersystems/intersystems-jdbc

It is very bad to the Java Community. And why not publish IRIS Hibernate dialect in mvn repository too?

These actions are important to Java Developers.

We are trying to script a High Availability Shutdown/Start script in case we need to fail over to one of our other servers we can be back up within mins. Is there a way to configure the startup procedure to Automatically Stop/Start the JDBC server when shutting down or starting up cache? is there an auto setting we can change?

Thanks

Scott Roth

The Ohio State University Wexner Medical Center

Is it possible to access (read, write) to an external Oracle database via Cache SQL Gateway using JDBC in Cache Object Script?  I am currently using ODBC successfully but wanted to see if JDBC was an option too.  If it is possible, does anyone have a basic Object Script example(s) that I can review?

Thanks!

Intersystems use JReport as their reporting framework.

Are there any free version available for developers to try it out? If yes, can I avail the link?

Is there any free trial version for 'DeepSee'? if yes, can I avail the link? 

Thanks in advance for your feedback.

Problem: Caché instance connects periodically to an Oracle database via jdbc and downloads data. Sometimes data on a remote server would change.

Hi all...

I am try to execute a class method from JDBC connection. My method are simple, just create a file at $HOME  like this:

set sc='$zf(-1,"touch $HOME/lixo.txt > /var/tmp/log666 2>&1")

I put a log file to this commnad because it's don't work, and in log file i get this:

touch: cannot touch ‘/root/lixo.txt’: Permission denied

Hi all,

I'm trying to access via JDBC my community installation but the connection is always rejected. The same code (python code) using the stand-alone version of Intersystems IRIS works fine.

Is the community edition limited in this case? I can't see it in the official documentation: https://irisdocs.intersystems.com/irislatest/csp/docbook/DocBook.UI.Pag…

I need to reproduce a table (in fact a view, but let's start with a simple table 😊) in IRIS as the currently used in Oracle.

I need to expose/project one column to JDBC as CLOB, in my class I have the corresponding property defined as:

Property GlobStream As %Stream.GlobalCharacter;

In JDBC this column is projected as LONGVARCHAR, this is compliant with the documentation but I need to project it as CLOB.

In addition, I'm no expert in JDBC but wit seems that LONGVARCHAR has a Maximum Length 32,700 characters in JDBC, not quite enough for an arbitrary stream.

Hello. Currently, we are developing using Cache 2018 version.
Our team is working on improving an existing legacy program so that it can also be used on the web.

Before asking my question, here is the development environment.

• IDE: IntelliJ
• Framework: Spring Boot, MyBatis
• DB Connection: JDBC (using the library provided by InterSystems)

Currently, we are successfully mapping global data through the %PERSISTENT class and able to query it with SQL. However, the problem is that the retrieved "Korean" data is all broken.

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.

Hi Community,
I am getting below "The driver cannot be loaded" error on a MacBook.

obdbc8.jar file is present in the mentioned folder.
Looking forward to resolve the above issue or workaround
Thanks

I'm looking for an efficient way in DBeaver to filter system tables (ex: belonging to a schema starting with "%").

By using a user with the %All role, DBeaver shows us a long list of system schemas, which forces us to go down the list before accessing the user tables.

It would be convenient to be able to fetch the whole query result in one operation instead of looping through every row. A fetch_all() method or something similar would provide this functionality I guess. Is there a reason why this is not implemented?

Hi, We recover a large amount of data from an external database (SQLServer, about 1 million rows in JDBC).
However, we have treatment time issue.
This process takes more than 30 minutes whereas on a "classic" SQL Server Management Studio type request takes less than a minute.

While searching on the internet, I came across this article: http://makejavafaster.blogspot.com/2015/06/jdbc-fetch-size-performance.html
It explains how in Java, we can tweak the FetchSize parameter of the JDBC driver to optimize this kind of process.

Is there a way to access this JDBC parameter through the EnsLib.SQL.

Hello everyone,

I'm trying to authenticate a user(Health Share clinician) from a Java Application. 

I 'm already connected to Caché and able to run SQL commands.

My question is: How can I authenticate a user using only SQL? In fact, what I want is verify if the users exists in the base and if the given password is the same used in Health Share.

There is a column 'password' in Security.users table but I'm not able to see its content, even so, I don't know which hash function to use to compare with.

Hello Community,

I am facing a JDBC connection issue after migrating from Caché 2016 to Caché 2018.1. When I attempt to connect using the following connection settings:

CACHE_DATASOURCE_URL=jdbc:Cache://localhost:1972/TEST

CACHE_DB_USERNAME=test

CACHE_DB_PASSWORD=test
 

I consistently receive the following error:

[Cache JDBC] Communication link failure: Access Denied

This configuration worked perfectly with Caché 2016. I have verified the following:

1. The namespace (TEST) exists and is correctly specified in the connection URL.
2. The credentials (username: test, password: test) are correct.

I get this on some queries in some namespaces.  For instance, this query:

It works fine in HSBUS but in HSREG it throws the error.

Server closed communication device

Does anyone know what would cause this? Would it log something more useful somewhere?

Everyone

There is a setQueryTimeout method in the% Net.Remote.Java.JDBCGateway class of IRIS, how to use Ensemble2016 to achieve this function?

Hi all....

I couldn't find documentation on how to create a blob using the cache JDBC driver.
I found only one reading example:

https://cedocs.intersystems.com/latest/csp/docbook/DocBook.UI.Page.cls?…

The createBlob Method of the connection class was not implemented:

https://cedocs.intersystems.com/latest/csp/docbook/DocBook.UI.Page.cls?…
 

Does anyone know how to create a blob without compromising the java heap space?

Hi all.

I have some problem with getting data from external source (PostgreSQL) via JDBC and load it in DeepSee and I resolved some problems while writing this question :)

So..Below I proved my steps of working:

1. Created SQL Gateway Connection
2. Created class for loading data via JDBC
   

   S Connection=##class

   1. In 2 line I got exception (not saved it) and I exclusive this option
3. Next I Created projections via SQL wizard and now all tables stored in Cache and I get needed data via  ##class(%ResultSet.SQL).%Prepare()
4. After that I create model (StudentRating) in sequence by result set

Hi Guys,

I am trying to pull data from CacheDB and push into elasticsearch using logstash. In the configuration file i am giving the following. But it is throwing error No Suitable Driver Found for jdbc:Cache://ipaddress:port/namespace. Could anyone please help to resolve this ? I tried both JDK17 and JDK18 but no luck.

My Config file is as follows

input {
    jdbc {
    clean_run => true
    jdbc_driver_library => "C:\InterSystems\Cache\dev\java\lib\JDK17\cache-jdbc-2.0.0.jar"
    jdbc_driver_class => "com.intersys.jdbc.

I am using a Gradle Project for testing APIs, but I need to connect to the database.

I already put this on the dependencies:

And I'm trying to use this way:

But I'm keep getting this error: java.lang.ClassNotFoundException: com.intersys.jdbc.CacheDriver

Is there any place that I can put a JAR file? Because the project has no lib folder (I already tried to add it, but it doesn't work).

Hello all,

On one of my team's systems, we utilize a business operation with the EnsLib.SQL.OutboundAdapter to make SQL queries to another IRIS system using JDBC. To authenticate the connection, we utilize a user account on the target system.

We recently had a failure where this user account expired due to inactivity, causing all queries to error until the account was reactivated on the target system.

Hi

I am fairly new to Ensemble development.

I was wondering what is the best process of returning the resultset from a SQL outbound adapter to the BPL that had invoked it.

Thank you for your help.

Kind Regards,

Salma