Oracle AI Database Free – Quick Start

Connecting to Oracle AI Database Free

SQLcl

Connect string format: [username]@[hostname]:[port]/[DB service name] [AS SYSDBA]

To connect to the first Pluggable Database (PDB) use:

sql sys@localhost:1521/FREEPDB1 as sysdba

To connect to the Container Database (CDB) use:

sql sys@localhost:1521/FREE as sysdba

SQL*Plus

Connect string format: [username]@[hostname]:[port]/[DB service name] [AS SYSDBA]

To connect to the first Pluggable Database (PDB) use:

sqlplus sys@localhost:1521/FREEPDB1 as sysdba

To connect to the Container Database (CDB) use:

sqlplus sys@localhost:1521/FREE as sysdba

Java

OracleDataSource ods = new OracleDataSource(); ods.setURL("jdbc:oracle:thin:@localhost:1521/FREEPDB1"); // jdbc:oracle:thin@[hostname]:[port]/[DB service name] ods.setUser("[Username]"); ods.setPassword("[Password]"); Connection conn = ods.getConnection(); PreparedStatement stmt = conn.prepareStatement("SELECT 'Hello World!' FROM dual"); ResultSet rslt = stmt.executeQuery(); while (rslt.next()) { System.out.println(rslt.getString(1)); }

Python

import oracledb


conn = oracledb.connect(user="[Username]", password="[Password]", dsn="localhost:1521/FREEPDB1")
with conn.cursor() as cur:
   cur.execute("SELECT 'Hello World!' FROM dual")
   res = cur.fetchall()
   print(res)

Node.js

const oracledb = require('oracledb');async function run() { let connection = await oracledb.getConnection({ user : "[Username]", password : "[Password]", connectString : "localhost:1521/FREEPDB1" // [hostname]:[port]/[DB service name] }); let result = await connection.execute( "SELECT 'Hello World!' FROM dual"); console.log(result.rows[0]); } run();

C#/.NET

// Connection string format: User Id=[username];Password=[password];Data Source=[hostname]:[port]/[DB service name]; OracleConnection con = new OracleConnection("User Id=[Username];Password=[Password];Data Source=localhost:1521/FREEPDB1;"); con.Open(); OracleCommand cmd = con.CreateCommand(); cmd.CommandText = "SELECT \'Hello World!\' FROM dual"; OracleDataReader reader = cmd.ExecuteReader(); reader.Read(); Console.WriteLine(reader.GetString(0));

PHP

// [username], [password], [hostname]:[port]/[DB service name] $c = oci_pconnect("[Username]", "[Password]", "localhost:1521/FREEPDB1"); $s = oci_parse($c, "SELECT 'Hello World!' FROM dual"); oci_execute($s); oci_fetch_all($s, $res); echo "<pre>\n" var_dump($res); echo "</pre>\n";

Ruby

require 'oci8' con = OCI8.new("[Username]", "[Password]", "localhost:1521/FREEPDB1") statement = "SELECT 'Hello World!' FROM dual" cursor = con.parse(statement) cursor.exec cursor.fetch do |row| print row end

Go

package main

     
import (
      "fmt"
      "log"
      "database/sql"
      _ "github.com/godror/godror"
)
     
func main() {  
     
      // connectString format: [hostname]:[port]/[DB service name]
     
      dsn := `user="[Username]"
              password="[Password]"
              connectString="localhost:1521/FREEPDB1"`  
     
      db, err := sql.Open("godror", dsn)
      if err != nil {
        panic(err)
      }
      defer db.Close()
     
      rows, err := db.Query("SELECT 'Hello World!' FROM dual")
      if err != nil {
        panic(err)
      }
      defer rows.Close()
     
      var strVal string
      for rows.Next() {
        err := rows.Scan(&strVal)
        if err != nil {
          log.Fatal(err)
        }
        fmt.Println(strVal)
      }
      err = rows.Err()
      if err != nil {
        log.Fatal(err)
      }
     
}