Example usage for java.sql Connection createStatement

List of usage examples for java.sql Connection createStatement

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Introduction

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

Prototype

Statement createStatement() throws SQLException;

Source Link

Document

Creates a Statement object for sending SQL statements to the database.

Usage

From source file:Main.java

public static void main(String[] args) throws Exception {
    try {/*ww w .j a  v  a2  s. c  o  m*/
        String url = "jdbc:odbc:yourdatabasename";
        String driver = "sun.jdbc.odbc.JdbcOdbcDriver";
        String user = "guest";
        String password = "guest";

        FileInputStream fis = new FileInputStream("sometextfile.txt");

        Class.forName(driver);
        Connection connection = DriverManager.getConnection(url, user, password);
        Statement createTable = connection.createStatement();
        createTable.executeUpdate("CREATE TABLE source_code (name char(20), source LONGTEXT)");
        String ins = "INSERT INTO source_code VALUES(?,?)";
        PreparedStatement statement = connection.prepareStatement(ins);

        statement.setString(1, "TryInputStream2");
        statement.setAsciiStream(2, fis, fis.available());

        int rowsUpdated = statement.executeUpdate();
        System.out.println("Rows affected: " + rowsUpdated);
        Statement getCode = connection.createStatement();
        ResultSet theCode = getCode.executeQuery("SELECT name,source FROM source_code");
        BufferedReader reader = null;
        String input = null;

        while (theCode.next()) {
            reader = new BufferedReader(new InputStreamReader(theCode.getAsciiStream(2)));
            while ((input = reader.readLine()) != null) {
                System.out.println(input);
            }
        }
        connection.close();
    } catch (Exception e) {
        System.err.println(e);
    }
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    Connection conn = getHSQLConnection();
    System.out.println("Got Connection.");
    Statement st = conn.createStatement();
    st.executeUpdate("create table survey (id int,name varchar, PRIMARY KEY (id) );");
    st.executeUpdate("insert into survey (id,name ) values (1,'nameValue')");

    ResultSet rs = null;//from   w w w  .j a  v a2 s. co m
    DatabaseMetaData meta = conn.getMetaData();
    // The Oracle database stores its table names as Upper-Case,
    // if you pass a table name in lowercase characters, it will not work.
    // MySQL database does not care if table name is uppercase/lowercase.
    //
    rs = meta.getPrimaryKeys(null, null, "survey");

    java.util.List list = new java.util.ArrayList();
    while (rs.next()) {
        String columnName = rs.getString("COLUMN_NAME");
        System.out.println("getPrimaryKeys(): columnName=" + columnName);
    }

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

From source file:Main.java

public static void main(String[] args) throws Exception {
    try {/*from  w  ww  .ja v a 2s.c  om*/
        String url = "jdbc:odbc:yourdatabasename";
        String driver = "sun.jdbc.odbc.JdbcOdbcDriver";
        String user = "guest";
        String password = "guest";

        FileInputStream fis = new FileInputStream("sometextfile.txt");

        Class.forName(driver);
        Connection connection = DriverManager.getConnection(url, user, password);
        Statement createTable = connection.createStatement();
        createTable.executeUpdate("CREATE TABLE source_code (name char(20), source LONGTEXT)");
        String ins = "INSERT INTO source_code VALUES(?,?)";
        PreparedStatement statement = connection.prepareStatement(ins);

        statement.setString(1, "TryInputStream2");
        statement.setAsciiStream(2, fis, fis.available());

        int rowsUpdated = statement.executeUpdate();
        System.out.println("Rows affected: " + rowsUpdated);
        Statement getCode = connection.createStatement();
        ResultSet theCode = getCode.executeQuery("SELECT name,source FROM source_code");
        BufferedReader reader = null;
        String input = null;

        while (theCode.next()) {
            reader = new BufferedReader(new InputStreamReader(theCode.getAsciiStream("source")));
            while ((input = reader.readLine()) != null) {
                System.out.println(input);
            }
        }
        connection.close();
    } catch (Exception e) {
        System.err.println(e);
    }
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    Connection conn = getHSQLConnection();
    System.out.println("Got Connection.");
    Statement st = conn.createStatement();
    st.executeUpdate("create table survey (id int,name varchar);");
    st.executeUpdate("create view surveyView as (select * from survey);");
    st.executeUpdate("insert into survey (id,name ) values (1,'nameValue')");

    PreparedStatement pstmt = null;
    ParameterMetaData paramMetaData = null;
    String query = "select * from survey where id > ? and name = ?";
    pstmt = conn.prepareStatement(query);
    paramMetaData = pstmt.getParameterMetaData();
    if (paramMetaData == null) {
        System.out.println("db vendor does NOT support ParameterMetaData");
    } else {/*from   w w w  . ja  va2 s.com*/
        System.out.println("db vendor supports ParameterMetaData");
        // find out the number of dynamic parameters
        int paramCount = paramMetaData.getParameterCount();
        System.out.println("paramCount=" + paramCount);
    }

    pstmt.close();
    conn.close();

}

From source file:Main.java

public static void main(String[] args) throws Exception {
    Connection conn = getMySqlConnection();
    System.out.println("Got Connection.");
    Statement st = conn.createStatement();
    st.executeUpdate("drop table survey;");
    st.executeUpdate("create table survey (id int,name varchar(30));");
    st.executeUpdate("insert into survey (id,name ) values (1,'nameValue')");

    st = conn.createStatement();/*from w  w w.  java2 s.c om*/

    String query = "select * from survey where 1 = 0";

    WebRowSet webRS = new WebRowSetImpl();
    webRS.setCommand(query);
    webRS.execute(conn);

    // convert xml to a String object
    StringWriter sw = new StringWriter();
    webRS.writeXml(sw);
    System.out.println(sw.toString());

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

From source file:Main.java

public static void main(String[] args) throws Exception {
    Connection conn = getHSQLConnection();
    System.out.println("Got Connection.");
    Statement st = conn.createStatement();
    st.executeUpdate("create table survey (id int,name varchar);");
    st.executeUpdate("create view surveyView as (select * from survey);");
    st.executeUpdate("insert into survey (id,name ) values (1,'nameValue')");
    st.executeUpdate("insert into survey (id,name ) values (2,'anotherValue')");

    String sqlQuery = "SELECT * FROM survey";
    WebRowSet webRS = new WebRowSetImpl();
    webRS.setCommand(sqlQuery);/*  w w w  . j a v a2  s. c o m*/
    webRS.execute(conn);

    // create RowSetMetaData object
    RowSetMetaData rsMD = (RowSetMetaData) webRS.getMetaData();
    System.out.println("rsMD=" + rsMD);
    if (rsMD == null) {
        System.out.println("vendor does not support RowSetMetaData");
    } else {
        int columnCount = rsMD.getColumnCount();
        System.out.println("columnCount=" + columnCount);
    }
    conn.close();
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    Connection conn = getConnection();
    conn.setAutoCommit(false);/*  w  w  w  .  j a  v a2s.  co 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();
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    Connection conn = getHSQLConnection();

    conn.setAutoCommit(false); // start a transaction

    Statement st = conn.createStatement();
    st.executeUpdate("create table survey (id int,name varchar(30));");
    st.executeUpdate("insert into survey (id,name ) values (1,'nameValue')");
    st.executeUpdate("insert into survey (id,name ) values (2,'nameValue')");
    conn.rollback(); // the preceding inserts will not commit;
    st.executeUpdate("INSERT INTO survey(id, name) VALUES('33', 'jeff')");
    conn.commit(); // end the transaction

    st = conn.createStatement();//  w w  w . j  a va  2s.co  m
    ResultSet rs = st.executeQuery("SELECT * FROM survey");

    outputResultSet(rs);

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

From source file:MainClass.java

public static void main(String args[]) {
    Connection conn = null;
    Statement stmt = null;//from  w  w  w.j  av a2s  .  co  m
    try {
        conn = getConnection();
        stmt = conn.createStatement();
        stmt.executeUpdate(EMPLOYEE_TABLE);
        stmt.executeUpdate("insert into MyEmployees3(id, firstName) values(100, 'A')");
        stmt.executeUpdate("insert into MyEmployees3(id, firstName) values(200, 'B')");
        System.out.println("CreateEmployeeTableOracle: main(): table created.");
    } catch (ClassNotFoundException e) {
        System.out.println("error: failed to load Oracle driver.");
        e.printStackTrace();
    } catch (SQLException e) {
        System.out.println("error: failed to create a connection object.");
        e.printStackTrace();
    } catch (Exception e) {
        System.out.println("other error:");
        e.printStackTrace();
    } finally {
        try {
            stmt.close();
            conn.close();
        } catch (Exception e) {
        }
    }
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    Connection conn = getMySqlConnection();
    System.out.println("Got Connection.");
    Statement st = conn.createStatement();
    st.executeUpdate("drop table survey;");
    st.executeUpdate("create table survey (id int,name varchar(30));");
    st.executeUpdate("insert into survey (id,name ) values (1,'nameValue')");

    String tableName = "survey";
    String query = "select * from  " + tableName + " where 1=0";
    Statement stmt = null;/* ww  w. jav  a2 s . c o  m*/
    ResultSet rs = null;
    try {
        stmt = conn.createStatement();
        rs = stmt.executeQuery(query);
        System.out.println("Exist");
        ;
    } catch (Exception e) {
        // table does not exist or some other problem
        //e.printStackTrace();
        System.out.println("Not Exist");
    }

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