I am using a Round() function in MySQL query to get a SUM() value with 3 precision. But I am not sure whether this is the best way or get an actual value and round it off in java or js. I am a bit confused about which is the best practice and why? Select ROUND(SUM(ORDER_VALUE),3) from Orders or Answer
Unable to connect to a database using JDBC within Spark with Scala
I’m trying to read data from JDBC in Spark Scala. Below is the code written in Databricks. I’m getting the following error message: Could someone please let me know how to resolve this issue. Answer The certificate used by your host is not trusted by java. Solution 1 (Easy, not recommended) Disabled certificate checking and always trust the certificate provided
Spring security loginProcessingUrl only works on localhost
I have built an application by using Spring Boot and Thymeleaf. My application works as supposed in my localhost, but when I package it as a .war and deploy it in a test tomcat server, it prompts the login page and then either redirects me to the error page or brings me back to the login page. I have tried
How do I set a Java library’s custom event listener in Kotlin?
I have been working on an Android project in Kotlin and would like to use this UI library. However, it’s written in Java (and so is the documentation), and I’m not sure how to implement the event listener for the buttons. This is how it’s supposed to be done in Java: Does anyone know how I could do the same
How to use Hibernate Search with a wildcard query and output the result object list
I want to search for a string in XML data in MySQL database using hibernate search and print the result list of data that contains the string. Answer ..it worked
how to programmatically set good scan beep on zebra device(Zebra MC3300) (only beep when specific type of barcode is scanned) using android kotlin app
I want my scanner to beep only when the barcode with “/” is scanned, what I have done is my app check if the barcode scanned have “/” but the beep is produced first then app check if the scanned barcode is right or not Answer You would need to mute the scanner beep and then have your app generate
Callable Statement – PostgreSQL – Multiple Out Parameters
We have a stored procedure in a PostgreSQL DB that takes multiple input and multiple out parameters. The procedure call from the PG Admin client works fine when we do the following, call proc1(input1, input2, output1, output2) However, if we try to make this call through a JDBC CallableStatement, we get the below error, The PostgreSQL driver is “org.postgresql.Driver” The
ReactiveMongoRepository can’t save to database
I’m newbie with Java. I’m create an API with Webflux and ReactiveMongoRepository. I try to save my data from another API. My repository: My service implements: My services: My model: After function findByIdAccountsApiTrack() run I can’t find any document created in my database. I can see my variable accountApiTracking have data. But accountApiTrackingRepo.save doesn’t work. What I’m missing? Answer In
For HashMap, is it more efficient to use compute() or put()
I have tried looking around for a while but I can’t find a concrete answer and still am having some trouble understanding exactly what the compute method for HashMap does. The way I understand it at the moment is that compute will allow you to manipulate the value but not set it to a new value (like where the garbage
Java – JTextArea refuses to print strings that are just whitespace [closed]
Closed. This question needs debugging details. It is not currently accepting answers. Edit the question to include desired behavior, a specific problem or error, and the shortest code necessary to reproduce the problem. This will help others answer the question. Closed last year. Improve this question I have written a command terminal using Swing components. The snippets of code below