why permission denied when i am connecting jdbc to mysql
it gives same error permission denied i thing i try all possible ways to solve it . i am using ubuntu . please if anyone knoe what is the proble help me .. . i change my user in mysql-server…
Postgresql – Postgres unable to detect correct type of integer field as inspected using ResultSetMetaData
I build an Excel document from a result set returned from PostgresQL database. I need to being able to distinguish between decimal (double) and non-decimal (integer) numbers returned by the result set. My SQL looks like followging: ... (select product,…
Postgresql – Java PreparedStatement Error: "Cannot resolve query parameter '2' and '3'"
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…
Mysql – Problems with executeQuery
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…
Mysql – JDBC connection object returns null in Servlet/Web
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,…
Docker – How to setup spring boot api with postgress working on Google Cloud Platform?
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…
How to configure kafka connect jdbc sink connector for postgresql with ssl postgres authentication?
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",…
Mysql getting disconnected from application during populating
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…
Mysql – How to handle SQL queries to a database with a propability of 100+ combinations?
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…
Mysql – Java multiple reads on same SQL table
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…