Example usage for java.sql Connection commit

Introduction

In this page you can find the example usage for java.sql Connection commit.

Prototype

void commit() throws SQLException;

Source Link

Document

Makes all changes made since the previous commit/rollback permanent and releases any database locks currently held by this Connection object.

Usage

From source file:Main.java

public static void main(String[] args) throws Exception {
    Connection conn = getConnection();
    conn.setAutoCommit(false);//from  w w w. j a v a  2  s .c  o  m
    Statement st = conn.createStatement();

    st.executeUpdate("create table survey (id int, name VARCHAR(30) );");

    String INSERT_RECORD = "insert into survey(id, name) values(?,?)";

    PreparedStatement pstmt = conn.prepareStatement(INSERT_RECORD);
    pstmt.setString(1, "1");
    pstmt.setString(2, "name1");
    pstmt.addBatch();

    pstmt.setString(1, "2");
    pstmt.setString(2, "name2");
    pstmt.addBatch();

    // execute the batch
    int[] updateCounts = pstmt.executeBatch();

    checkUpdateCounts(updateCounts);

    // since there were no errors, commit
    conn.commit();

    ResultSet rs = st.executeQuery("SELECT * FROM survey");
    outputResultSet(rs);

    rs.close();
    st.close();
    conn.close();
}

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From source file:Main.java

public static void main(String[] args) throws Exception {
    Connection conn = getConnection();
    conn.setAutoCommit(false);/* w  ww  .ja  va2  s  .c o  m*/
    Statement st = conn.createStatement();

    st.executeUpdate("create table survey (id int, name VARCHAR(30) );");
    st.addBatch("DELETE FROM survey");

    st.addBatch("INSERT INTO survey(id, name) " + "VALUES(444, 'ginger')");
    // we intentionally pass a table name (animals_tableZZ)
    // that does not exist
    st.addBatch("INSERT INTO survey(id, name) " + "VALUES(555, 'lola')");
    st.addBatch("INSERT INTO survey(id, name) " + "VALUES(666, 'freddy')");

    // Execute the batch
    int[] updateCounts = st.executeBatch();

    checkUpdateCounts(updateCounts);

    // since there were no errors, commit
    conn.commit();

    ResultSet rs = st.executeQuery("SELECT * FROM survey");
    outputResultSet(rs);

    rs.close();
    st.close();
    conn.close();
}

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From source file:DemoPreparedStatementSetClob.java

public static void main(String[] args) throws Exception {
    String id = "0001";
    String newID = "0002";

    ResultSet rs = null;//from w w w.  j  a  v a 2  s. co m
    Connection conn = null;
    PreparedStatement pstmt = null;
    try {
        conn = getConnection();
        // begin transaction
        conn.setAutoCommit(false);
        String query1 = "select clob_column from clob_table where id = ?";
        pstmt = conn.prepareStatement(query1);
        pstmt.setString(1, id);
        rs = pstmt.executeQuery();
        rs.next();
        java.sql.Clob clob = (java.sql.Clob) rs.getObject(1);
        String query = "insert into clob_table(id, clob_column) values(?, ?)";
        pstmt = conn.prepareStatement(query);
        pstmt.setString(1, newID);
        pstmt.setClob(2, clob);

        int rowCount = pstmt.executeUpdate();
        System.out.println("rowCount=" + rowCount);
        conn.commit();
    } finally {
        rs.close();
        pstmt.close();
        conn.close();
    }
}

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From source file:Main.java

public static void main(String[] args) {
    Connection conn = null;
    Statement stmt = null;/* ww  w .  j  a v  a2s  .  co m*/
    boolean executeResult;
    try {
        String driver = "oracle.jdbc.driver.OracleDriver";
        Class.forName(driver).newInstance();
        System.out.println("Connecting to database...");
        String jdbcUrl = "jdbc:oracle:thin:@localhost:1521:ORCL";
        conn = DriverManager.getConnection(jdbcUrl, "yourName", "mypwd");
        stmt = conn.createStatement();
        conn.setAutoCommit(false);
        if (!conn.getAutoCommit())
            System.out.println("Auto-commit is set to false");
        String sql = "INSERT INTO Location VALUES(715,'Houston')";
        stmt.executeUpdate(sql);
        sql = "INSERT INTO Employees VALUES" + "(8,'K','4351',{d '2000-02-00'},715)";
        stmt.executeUpdate(sql);
        conn.commit();
    } catch (SQLException se) {
        String msg = se.getMessage();
        msg = "SQLException occured with message: " + msg;
        System.out.println(msg);
        System.out.println("Starting rollback operations...");
        try {
            conn.rollback();
        } catch (SQLException se2) {
            se2.printStackTrace();
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
}

---

From source file:Main.java

public static void main(String[] args) throws Exception {
    String url = "jdbc:mysql://localhost/testdb";
    String username = "root";
    String password = "";
    Class.forName("com.mysql.jdbc.Driver");
    Connection conn = null;
    try {/*  w w  w  .j a va  2  s  . c om*/
        conn = DriverManager.getConnection(url, username, password);
        conn.setAutoCommit(false);

        Statement st = conn.createStatement();
        st.execute("INSERT INTO orders (username, order_date) VALUES ('java', '2007-12-13')",
                Statement.RETURN_GENERATED_KEYS);

        ResultSet keys = st.getGeneratedKeys();
        int id = 1;
        while (keys.next()) {
            id = keys.getInt(1);
        }
        PreparedStatement pst = conn.prepareStatement(
                "INSERT INTO order_details (order_id, product_id, quantity, price) VALUES (?, ?, ?, ?)");
        pst.setInt(1, id);
        pst.setString(2, "1");
        pst.setInt(3, 10);
        pst.setDouble(4, 100);
        pst.execute();

        conn.commit();
        System.out.println("Transaction commit...");
    } catch (SQLException e) {
        if (conn != null) {
            conn.rollback();
            System.out.println("Connection rollback...");
        }
        e.printStackTrace();
    } finally {
        if (conn != null && !conn.isClosed()) {
            conn.close();
        }
    }
}

---

From source file:DemoPreparedStatementSetClob.java

public static void main(String[] args) throws Exception {
    String id = "0001";
    String newID = "0002";

    ResultSet rs = null;// ww w  .ja  v a  2s.c o m
    Connection conn = null;
    PreparedStatement pstmt = null;
    try {
        conn = getConnection();
        // begin transaction
        conn.setAutoCommit(false);
        String query1 = "select clob_column from clob_table where id = ?";
        pstmt = conn.prepareStatement(query1);
        pstmt.setString(1, id);
        rs = pstmt.executeQuery();
        rs.next();
        java.sql.Clob clob = (java.sql.Clob) rs.getObject(1);
        String query = "insert into clob_table(id, clob_column) values(?, ?)";
        pstmt = conn.prepareStatement(query);
        pstmt.setString(1, newID);
        pstmt.setClob(2, clob);

        // execute query, and return number of rows created
        int rowCount = pstmt.executeUpdate();
        System.out.println("rowCount=" + rowCount);
        // end transaction
        conn.commit();
    } finally {
        rs.close();
        pstmt.close();
        conn.close();
    }
}

---

From source file:Main.java

public static void main(String[] args) {
    long begTime = System.currentTimeMillis();

    String driver = DEFAULT_DRIVER;
    String url = DEFAULT_URL;
    String username = DEFAULT_USERNAME;
    String password = DEFAULT_PASSWORD;

    Connection connection = null;

    try {//from   w  ww. j  av  a2s  . c  o  m
        connection = createConnection(driver, url, username, password);
        DatabaseMetaData meta = connection.getMetaData();
        System.out.println(meta.getDatabaseProductName());
        System.out.println(meta.getDatabaseProductVersion());

        String sqlQuery = "SELECT PERSON_ID, FIRST_NAME, LAST_NAME FROM PERSON";
        System.out.println("before insert: " + query(connection, sqlQuery, Collections.EMPTY_LIST));

        connection.setAutoCommit(false);
        String sqlUpdate = "INSERT INTO PERSON(FIRST_NAME, LAST_NAME) VALUES(?,?)";
        List parameters = Arrays.asList("Foo", "Bar");
        int numRowsUpdated = update(connection, sqlUpdate, parameters);
        connection.commit();

        System.out.println("# rows inserted: " + numRowsUpdated);
        System.out.println("after insert: " + query(connection, sqlQuery, Collections.EMPTY_LIST));
    } catch (Exception e) {
        rollback(connection);
        e.printStackTrace();
    } finally {
        close(connection);
        long endTime = System.currentTimeMillis();
        System.out.println("wall time: " + (endTime - begTime) + " ms");
    }
}

---

From source file:DemoPreparedStatementSetBlob.java

public static void main(String[] args) throws Exception {
    Connection conn = null;
    PreparedStatement pstmt = null;
    ResultSet rs = null;//from w  w w .  jav  a  2  s  . c om
    java.sql.Blob blob = null;
    try {
        conn = getConnection();
        // prepare blob object from an existing binary column
        pstmt = conn.prepareStatement("select photo from my_pictures where id = ?");
        pstmt.setString(1, "0001");
        rs = pstmt.executeQuery();
        rs.next();
        blob = rs.getBlob(1);

        // prepare SQL query for inserting a new row using setBlob()
        String query = "insert into blob_table(id, blob_column) values(?, ?)";
        // begin transaction
        conn.setAutoCommit(false);

        pstmt = conn.prepareStatement(query);
        pstmt.setString(1, "0002");
        pstmt.setBlob(2, blob);

        int rowCount = pstmt.executeUpdate();
        System.out.println("rowCount=" + rowCount);
        // end transaction
        conn.commit();
    } finally {
        rs.close();
        pstmt.close();
        conn.close();
    }
}

---

From source file:SimpleProgramToAccessOracleDatabase.java

public static void main(String[] args) throws SQLException {
    Connection conn = null; // connection object
    Statement stmt = null; // statement object
    ResultSet rs = null; // result set object
    try {/*from  w  ww .  j a va2s. com*/
        conn = getConnection(); // without Connection, can not do much
        // create a statement: This object will be used for executing
        // a static SQL statement and returning the results it produces.
        stmt = conn.createStatement();
        // start a transaction
        conn.setAutoCommit(false);

        // create a table called cats_tricks
        stmt.executeUpdate("CREATE TABLE cats_tricks " + "(name VARCHAR2(30), trick VARCHAR2(30))");
        // insert two new records to the cats_tricks table
        stmt.executeUpdate("INSERT INTO cats_tricks VALUES('mono', 'r')");
        stmt.executeUpdate("INSERT INTO cats_tricks VALUES('mono', 'j')");

        // commit the transaction
        conn.commit();

        // set auto commit to true (from now on every single
        // statement will be treated as a single transaction
        conn.setAutoCommit(true);

        // get all of the the records from the cats_tricks table
        rs = stmt.executeQuery("SELECT name, trick FROM cats_tricks");

        // iterate the result set and get one row at a time
        while (rs.next()) {
            String name = rs.getString(1); // 1st column in query
            String trick = rs.getString(2); // 2nd column in query
            System.out.println("name=" + name);
            System.out.println("trick=" + trick);
            System.out.println("==========");
        }
    } catch (ClassNotFoundException ce) {
        // if the driver class not found, then we will be here
        System.out.println(ce.getMessage());
    } catch (SQLException e) {
        // something went wrong, we are handling the exception here
        if (conn != null) {
            conn.rollback();
            conn.setAutoCommit(true);
        }

        System.out.println("--- SQLException caught ---");
        // iterate and get all of the errors as much as possible.
        while (e != null) {
            System.out.println("Message   : " + e.getMessage());
            System.out.println("SQLState  : " + e.getSQLState());
            System.out.println("ErrorCode : " + e.getErrorCode());
            System.out.println("---");
            e = e.getNextException();
        }
    } finally { // close db resources
        try {
            rs.close();
            stmt.close();
            conn.close();
        } catch (Exception e) {
        }

    }
}

---

From source file:BatchUpdate.java

public static void main(String args[]) throws SQLException {

    ResultSet rs = null;/*w ww. j  ava2 s  . c o  m*/
    PreparedStatement ps = null;

    String url = "jdbc:mySubprotocol:myDataSource";

    Connection con;
    Statement stmt;
    try {

        Class.forName("myDriver.ClassName");

    } catch (java.lang.ClassNotFoundException e) {
        System.err.print("ClassNotFoundException: ");
        System.err.println(e.getMessage());
    }

    try {

        con = DriverManager.getConnection(url, "myLogin", "myPassword");
        con.setAutoCommit(false);

        stmt = con.createStatement();

        stmt.addBatch("INSERT INTO COFFEES " + "VALUES('Amaretto', 49, 9.99, 0, 0)");
        stmt.addBatch("INSERT INTO COFFEES " + "VALUES('Hazelnut', 49, 9.99, 0, 0)");
        stmt.addBatch("INSERT INTO COFFEES " + "VALUES('Amaretto_decaf', 49, 10.99, 0, 0)");
        stmt.addBatch("INSERT INTO COFFEES " + "VALUES('Hazelnut_decaf', 49, 10.99, 0, 0)");

        int[] updateCounts = stmt.executeBatch();
        con.commit();
        con.setAutoCommit(true);

        ResultSet uprs = stmt.executeQuery("SELECT * FROM COFFEES");

        System.out.println("Table COFFEES after insertion:");
        while (uprs.next()) {
            String name = uprs.getString("COF_NAME");
            int id = uprs.getInt("SUP_ID");
            float price = uprs.getFloat("PRICE");
            int sales = uprs.getInt("SALES");
            int total = uprs.getInt("TOTAL");
            System.out.print(name + "   " + id + "   " + price);
            System.out.println("   " + sales + "   " + total);
        }

        uprs.close();
        stmt.close();
        con.close();

    } catch (BatchUpdateException b) {
        System.err.println("-----BatchUpdateException-----");
        System.err.println("SQLState:  " + b.getSQLState());
        System.err.println("Message:  " + b.getMessage());
        System.err.println("Vendor:  " + b.getErrorCode());
        System.err.print("Update counts:  ");
        int[] updateCounts = b.getUpdateCounts();
        for (int i = 0; i < updateCounts.length; i++) {
            System.err.print(updateCounts[i] + "   ");
        }
        System.err.println("");

    } catch (SQLException ex) {
        System.err.println("-----SQLException-----");
        System.err.println("SQLState:  " + ex.getSQLState());
        System.err.println("Message:  " + ex.getMessage());
        System.err.println("Vendor:  " + ex.getErrorCode());
    }
}

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