tagged [jdbc]
org.postgresql.util.PSQLException: FATAL: sorry, too many clients already
org.postgresql.util.PSQLException: FATAL: sorry, too many clients already I am trying to connect to a Postgresql database, I am getting the following Error: > Error:org.postgresql.util.PSQLException: ...
- Modified
- 4 Dec at 15:20
How do I connect to a SQL Server 2008 database using JDBC?
How do I connect to a SQL Server 2008 database using JDBC? I have MSSQL 2008 installed on my local PC, and my Java application needs to connect to a MSSQL database. I am a new to MSSQL and I would lik...
- Modified
- 1 Sep at 15:39
How do you access the value of an SQL count () query in a Java program
How do you access the value of an SQL count () query in a Java program I want to get to the value I am finding using the COUNT command of SQL. Normally I enter the column name I want to access into th...
IO Error: The Network Adapter could not establish the connection
IO Error: The Network Adapter could not establish the connection I am new to Oracle, and am trying to run a simple example code with Java, but am getting this error when executing the code.. I am able...
Data truncation: Data too long for column 'logo' at row 1
Data truncation: Data too long for column 'logo' at row 1 I am trying to insert a photo into a BLOB column of a MySQL table, and I get an exception: Here is the JDBC: ``` int idRestaurant = 42; Stri...
com.mysql.jdbc.exceptions.jdbc4.CommunicationsException:Communications link failure
com.mysql.jdbc.exceptions.jdbc4.CommunicationsException:Communications link failure My program that connects to a MySQL database was working fine. Then, without changing any code used to set up the co...
How do I map a hibernate Timestamp to a MySQL BIGINT?
How do I map a hibernate Timestamp to a MySQL BIGINT? I am using Hibernate 3.x, MySQL 4.1.20 with Java 1.6. I am mapping a Hibernate Timestamp to a MySQL TIMESTAMP. So far so good. The problem is that...
How to get row count using ResultSet in Java?
How to get row count using ResultSet in Java? I'm trying to create a simple method that receives a ResultSet as a parameter and returns an int that contains the row count of the ResultSet. Is this a v...
Iterating over ResultSet and adding its value in an ArrayList
Iterating over ResultSet and adding its value in an ArrayList I am iterating over an `ResultSet` and trying to copy its values in an `ArrayList`. The problem is that its traversing only once. But usin...
Using "like" wildcard in prepared statement
Using "like" wildcard in prepared statement I am using prepared statements to execute mysql database queries. And I want to implement a search functionality based on a keyword of sorts. For that I nee...
- Modified
- 21 Jan at 01:34
'0000-00-00 00:00:00' can not be represented as java.sql.Timestamp error
'0000-00-00 00:00:00' can not be represented as java.sql.Timestamp error I have a database table containing dates ``` (`date` timestamp NOT NULL DEFAULT '0000-00-00 00:00:00'). ``` I'm using MySQL. Fr...
Efficient way to do batch INSERTS with JDBC
Efficient way to do batch INSERTS with JDBC In my app I need to do a lot of INSERTS. Its a Java app and I am using plain JDBC to execute the queries. The DB being Oracle. I have enabled batching thoug...
- Modified
- 24 Sep at 10:11
How to connect SQLite with Java?
How to connect SQLite with Java? I am using one simple code to access the SQLite database from Java application . My code is ``` import java.sql.Connection; import java.sql.DriverManager; import jav...
Oracle DB : java.sql.SQLException: Closed Connection
Oracle DB : java.sql.SQLException: Closed Connection Reasons for java.sql.SQLException: Closed Connection from Oracle?? > java.sql.SQLException: Closed Connection at oracle.jdbc.driver.DatabaseErro...
Difference between Statement and PreparedStatement
Difference between Statement and PreparedStatement The Prepared Statement is a slightly more powerful version of a Statement, and should always be at least as quick and easy to handle as a Statement. ...
PreparedStatement with Statement.RETURN_GENERATED_KEYS
PreparedStatement with Statement.RETURN_GENERATED_KEYS The only way that some JDBC drivers to return `Statement.RETURN_GENERATED_KEYS` is to do something of the following: ``` long key = -1L; Statemen...
Reading Data From Database and storing in Array List object
Reading Data From Database and storing in Array List object Hello all i want to display entire content of my database table on html page.I am trying to fetch record from database first and store in `...
Passing parameters to a JDBC PreparedStatement
Passing parameters to a JDBC PreparedStatement I'm trying to make my validation class for my program. I already establish the connection to the MySQL database and I already inserted rows into the tabl...
How to convert TimeStamp to Date in Java?
How to convert TimeStamp to Date in Java? How do I convert 'timeStamp' to `date` after I get the count in Java? My current code is as follows: ``` public class GetCurrentDateTime { public int data()...
Cannot load driver class: com.mysql.jdbc.Driver Spring
Cannot load driver class: com.mysql.jdbc.Driver Spring im getting this error even with the driver-class-name difined > java.lang.IllegalStateException: Cannot load driver class: co
- Modified
- 15 Jun at 04:0
Simulate CREATE DATABASE IF NOT EXISTS for PostgreSQL?
Simulate CREATE DATABASE IF NOT EXISTS for PostgreSQL? I want to create a database which does not exist through JDBC. Unlike MySQL, PostgreSQL does not support `create if not exists` syntax. What is t...
- Modified
- 16 Sep at 18:24
No suitable driver found for 'jdbc:mysql://localhost:3306/mysql
No suitable driver found for 'jdbc:mysql://localhost:3306/mysql Using Java, I get this error when attempting to connect to a mysql database: I'm using the
Where can I download mysql jdbc jar from?
Where can I download mysql jdbc jar from? I installed and tried to use jasper report studio. The first brick wall you hit when you try to create a datasource for your reports is The forums say I need ...
Can I connect to SQL Server using Windows Authentication from Java EE webapp?
Can I connect to SQL Server using Windows Authentication from Java EE webapp? I am currently investigating how to make a connection to a SQL Server database from my Java EE web application using Windo...
- Modified
- 3 Oct at 18:36
How can I get the SQL of a PreparedStatement?
How can I get the SQL of a PreparedStatement? I have a general Java method with the following method signature: It opens a connection, builds a `PreparedStatement` using the sql statement and the para...
- Modified
- 4 Mar at 20:53