April 9, 2020 By:

In my case, using native API in not an option, unfortunately. By using our site, you acknowledge that you have read and understand our Cookie Policy , Privacy Policy , and our Terms of Service. Sign up using Email and Password. The q language 3. Here I am handling only the SQLException s and masking all the others – which generally is not a good practice.

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Interfacing Java Spring with kdb

Spring boot will automatically configure the datasource class from the application. ResultSetStatement ,! Although it is not necessary to call the close method on!

You can choose any port you like. In my case, using native API in not an option, unfortunately. Apart from that NullPointerException is generated if a statement returns nothing upon execution such as assignment expressions somevar: By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

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We are using RowCallbackHandler as we shall be processing the rows immediately. Updated the post to include the code. That is, you cannot open a connection, explicitly begin a transaction, issue a series of separate queries within that transaction and finally roll back or commit the transaction.


I am able to execute the following code to select all the data from the table: In practice, this means that any single query or sequence of queries if executed in a single JDBC call will be executed in isolation without noticing the effects of other queries, and modifications made to the database will always be permanent.

InputStreamReader ; import java. Spring boot further simplifies the code by configuring Spring automatically wherever possible. Autowired ; import org.

Interfacing Java Spring with kdb

The classic way to access a kdb server from java is via the c class. It is the complete stack trace.

ResultSetMetaData ; import java. Evn when I try selection queries with aggregation functions, I use to get similar error. I have updated the corrected code. I have tried to execute that as well, but the error still remains the same.

jdbc kdb connection url string – Kdb+ / qStudio

Post Your Answer Discard By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies. SpringBootApplication ; import org. I am going to use the first approach.


CallableStatement when using the q JDBC driver, it is recommended with the DBCP component as it performs checks to ensure all resources are cleaned up, and has the ability to report resource leaks. To summarize, I am able to do only simple selection of data and nothing else. But whenever I try to run other queries, then the code gives me error, for example, for the following code: Previous Post Next Post.

The implementation builds on the lower-level javakdb APIwhich is somewhat simpler, and a good choice for application development when support for legacy code is not a consideration.

I tried using prepared statements too code is as followsbut still, no luck: Ldb up using Facebook.

Eclipse Community Forums: BIRT ยป connecting to kdb

Furthermore it offers configuration options to check the status of connections in the connection pool using a variety of strategies. Operations must be prefixed by “q ” in order to be executed as q statements. ResultSet ; import java.