40 lines
1.1 KiB
Java
40 lines
1.1 KiB
Java
package de.swingbe.postgres_java;
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import java.sql.*;
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import java.util.logging.Level;
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import java.util.logging.Logger;
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public class JavaPostgreSqlVersion {
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public static void main(String[] args) {
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//connection URL for the postgres database
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//jdbc:postgresql://<host>:<port>/<database name>
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String url = "jdbc:postgresql://localhost:5432/testdb";
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String user = "usr";
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String password = "#password";
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try (
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//establish connection
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Connection con = DriverManager.getConnection(url, user, password);
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//create object for sending SQL statements
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Statement st = con.createStatement();
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//execute SQL statement
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//rs object is a table of data returned by a SQL statement
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ResultSet rs = st.executeQuery("SELECT VERSION()")) {
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while (rs.next()) {
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System.out.println(rs.getString(1));
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}
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} catch (SQLException ex) {
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Logger lgr = Logger.getLogger(JavaPostgreSqlVersion.class.getName());
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lgr.log(Level.SEVERE, ex.getMessage(), ex);
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}
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}
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}
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