I am tyring to override a borrowBook interface. What is wrong with my code? Why there are errors such: Cannot resolve query parameter '2' and Cannot resolve query parameter '3'. @Override public void borrowBook(int bookId) throws SQLException { Date currentDate…
I'm trying to use MySQL and jdbc, but I can't use the executeQuery command, do you know why? It's the first time I've programmed in Java and integrated SQL into the program, I don't know what's wrong. import java.beans.Statement; import…
I'm stuck with a servlet problem – my database connection is turning up null. The weird part is, the same database code works fine in another class. I've double-checked my configuration, loaded the JDBC driver, and tested it on Tomcat,…
I created Postgress + Spring app and It works perfectly locally (I had different docker-compose file fot it, but it works) The target is: I want to deploy it to GCP. I'm already running Postgress DB on GCP. Done more…
I have a working jdbc sink connector configuration for postgres using username and password configuration: { "connector.class": "io.confluent.connect.jdbc.JdbcSinkConnector", "connection.url": "jdbc:postgresql://localhost:5432/postgres", "connection.user": "postgres-user", "connection.password": "postgres-pw", "topics.regex": "my-topic", "transforms": "unwrap", "transforms.unwrap.type": "io.debezium.transforms.ExtractNewRecordState", "transforms.unwrap.drop.tombstones": "false", "key.converter": "org.apache.kafka.connect.json.JsonConverter", "key.converter.schemas.enable": "false", "value.converter": "org.apache.kafka.connect.json.JsonConverter", "value.converter.schemas.enable": "false",…
Recently i got mac m1 i am running a product which uses [email protected] installed through homebrew, the data from the product is connected successfully to mysql and started populating but nearing the end of population there is a connection problem…
I have 9 fields to my user interface , each one is representing a column in my database table. So the problem is that i need to cover all the possible combinations of the 9 fields and send specific queries…
I want to migrate my app to clusters so I have to deal with mysql locking. For this post, I have simple table with 'id' and 'flag' whether is record updated or not. There are 3 threads reading table of…
I'm running a clojure application which needs to access a local database. The clojure application is using jdbc: :dependencies [[org.clojure/clojure "1.10.0"] ... [org.clojure/java.jdbc "0.7.12"] [org.postgresql/postgresql "42.3.3"]] The application works as expected when run directly on a host with a version…
I have the following code: Statement statement =createStatement(); try (java.sql.ResultSet resultset = statement.executeQuery()) { while (resultset.next()) { myObject.setProcessingDate(resultset.getDate(1)); myObject.set... } }finally { if (statement != null) { statement.close(); } } I know that statement object should be created in the…