The error happens after entering login and password:
"Deuorg.postgresql.util.PSQLException: Connection refused. Check that
the hostname and port are correct and that the postmaster is accepting
TCP / IP connections. "
I'm making the...
I am using the Bonitasoft tool to develop a BPM project, I have a PostgreSQL database that through a JDBC insert and change records by Bonitasoft , but I can not select the data from the database and display it in my UI Designer ,...
I'm trying to make pincode validator (serial), but I do not know how to do it.
I have two tables: "validation" and "expiration".
In the "validation" table, it has the following fields:
id(int), data(varchar), pincode(varchar), status(int...
Is it possible to create a custom implementation based on JDBC to intercept all sql's executed in the application?
I did not find anything very concrete about this in Google, I did a simple test just inheriting the interface of the driver I...
I'm having problems trying to connect to Firebird 3.0 using Jaybird 2.2.7, while running the Firebird 2.5 test I can connect to the database, but when I try to log in to Firebird 3.0, I enter the exception.
Following the images in the excepti...
I am testing insert here and the following error appears to me:
Exception in thread "main" java.sql.SQLException: No value specified for parameter 1
Dao
package modelo;
import java.sql.Connection;
import java.sql.Prepa...
My problem is the following, I saw that when I edit a registry, it works, the registry changes, but when I want to register a new user, it falls into the edit condition, it edits the registry information that I was changing previously , not allo...
I need to create a query with the insertion of several lines.
Change an array / list:
arrayOriginal = [10,20,30,40]
valueChave = 999
The return must be:
arrayNew = [(valueChave, 10), (valueChave, 20), (valueChave, 30)...
I'm studying for a Java test on database and I'm pretty confused, I was doing a program based on another, I made a sign-up screen and it works perfect, the only thing missing is send and I do not know how do this look the example and can not fin...
I'm learning to develop java and I'm trying to get ahead in my studies to understand how to make a connection to the database, but there's a problem I can not identify.
Below the error written in the log:
com.mysql.jdbc.exceptions.jdbc4...