Example usage for java.sql Connection close

List of usage examples for java.sql Connection close

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Introduction

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

Prototype

void close() throws SQLException;

Source Link

Document

Releases this Connection object's database and JDBC resources immediately instead of waiting for them to be automatically released.

Usage

From source file:InsertCustomType_Oracle.java

public static void main(String[] args) {
    String id = "001";
    String isbn = "1234567890";
    String title = "java demo";
    String author = "java2s";
    int edition = 1;

    Connection conn = null;
    PreparedStatement pstmt = null;
    try {//from  w  ww.  ja  v  a 2s. co  m
        conn = getConnection();
        String insert = "insert into book_table values(?, BOOK(?, ?, ?, ?))";
        pstmt = conn.prepareStatement(insert);
        pstmt.setString(1, id);
        pstmt.setString(2, isbn);
        pstmt.setString(3, title);
        pstmt.setString(4, author);
        pstmt.setInt(5, edition);
        pstmt.executeUpdate();
    } catch (Exception e) {
        e.printStackTrace();
        System.exit(1);
    } finally {
        try {
            pstmt.close();
            conn.close();
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    Connection conn = getMySqlConnection();
    DatabaseMetaData meta = conn.getMetaData();
    try {/*www .  ja v a 2s .  c om*/
        int majorVersion = meta.getDatabaseMajorVersion();
        System.out.println("major Version: " + majorVersion);
        int minorVersion = meta.getDatabaseMinorVersion();
        System.out.println("minorVersion" + minorVersion);
    } catch (Exception e) {
        System.out.println("minorVersion unsupported feature");
    }

    String productName = meta.getDatabaseProductName();
    String productVersion = meta.getDatabaseProductVersion();
    System.out.println("productName" + productName);
    System.out.println("productVersion" + productVersion);
    conn.close();
}

From source file:com.hangum.tadpole.engine.procedure.OracleProcedure.java

/**
 * @param args//w  ww.  j  a va 2s  . co m
 */
public static void main(String[] args) {

    String strQuery = "CREATE OR REPLACE PROCEDURE procOneINOUTParameter(genericParam IN OUT VARCHAR2) "
            + " IS " + "      BEGIN "
            + "        genericParam := 'Hello World INOUT parameter ' || genericParam; " + "      END;";

    Connection conn = null;
    Statement stmt = null;
    try {
        Class.forName("oracle.jdbc.driver.OracleDriver");
        conn = DriverManager.getConnection("jdbc:oracle:thin:@192.168.32.128:1521:XE", "HR", "tadpole");

        stmt = conn.createStatement();
        int code = stmt.executeUpdate(strQuery);
        System.out.println("[result]" + code);

    } catch (ClassNotFoundException e) {
        e.printStackTrace();
    } catch (SQLException e) {
        e.printStackTrace();
    } finally {
        try {
            if (stmt != null)
                stmt.close();
            if (conn != null)
                conn.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

}

From source file:Main.java

public static void main(String[] args) throws Exception {
    Connection conn = getConnection();
    Statement st = conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_UPDATABLE);

    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,null)");
    st.executeUpdate("insert into survey (id,name ) values (3,'Tom')");

    ResultSet rs = st.executeQuery("SELECT id,name FROM survey");

    rs.moveToInsertRow();/*from  w ww  . j a  v  a2s.  c o m*/

    rs.updateString("id", "66");
    rs.updateString("name", "H F");

    // Insert the row
    rs.insertRow();

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

From source file:CreateCoffees.java

public static void main(String args[]) {

    String url = "jdbc:mySubprotocol:myDataSource";
    Connection con;
    String createString;//from  ww w . ja  v a  2s .  co  m
    createString = "create table COFFEES " + "(COF_NAME varchar(32), " + "SUP_ID int, " + "PRICE float, "
            + "SALES int, " + "TOTAL int)";
    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");

        stmt = con.createStatement();
        stmt.executeUpdate(createString);

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

    } catch (SQLException ex) {
        System.err.println("SQLException: " + ex.getMessage());
    }
}

From source file:InsertTextFileToOracle.java

public static void main(String[] args) throws Exception {
    String id = "001";
    String fileName = "fileName.txt";

    FileInputStream fis = null;/*from  ww  w. j ava2 s.co  m*/
    PreparedStatement pstmt = null;
    Connection conn = null;
    try {
        conn = getConnection();
        conn.setAutoCommit(false);
        File file = new File(fileName);
        fis = new FileInputStream(file);
        pstmt = conn.prepareStatement("insert into DataFiles(id, fileName, fileBody) values (?, ?, ?)");
        pstmt.setString(1, id);
        pstmt.setString(2, fileName);
        pstmt.setAsciiStream(3, fis, (int) file.length());
        pstmt.executeUpdate();
        conn.commit();
    } catch (Exception e) {
        System.err.println("Error: " + e.getMessage());
        e.printStackTrace();
    } finally {
        pstmt.close();
        fis.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')");

    DatabaseMetaData meta = conn.getMetaData();
    ResultSet schemas = meta.getSchemas();
    while (schemas.next()) {
        String tableSchema = schemas.getString(1); // "TABLE_SCHEM"
        String tableCatalog = schemas.getString(2); //"TABLE_CATALOG"
        System.out.println("tableSchema" + tableSchema);
    }//from ww  w  .  j a  v  a2s .  c o m

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

From source file:Main.java

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

    DatabaseMetaData mtdt = conn.getMetaData();

    ResultSet rs = mtdt.getTables(conn.getCatalog(), "%", "%", null);

    ResultSetMetaData rsmd = rs.getMetaData();
    int numCols = rsmd.getColumnCount();
    for (int i = 1; i <= numCols; i++) {
        if (i > 1)
            System.out.print(", ");
        System.out.print(rsmd.getColumnLabel(i));
    }// w w  w. j a  v a 2  s  . co m
    System.out.println("");
    while (rs.next()) {
        for (int i = 1; i <= numCols; i++) {
            if (i > 1)
                System.out.print(", ");
            System.out.print(rs.getString(i));
        }
        System.out.println("");
    }
    conn.close();
}

From source file:Main.java

public static void main(String args[]) throws Exception {
    Connection con = null;
    Class.forName("oracle.jdbc.driver.OracleDriver");
    con = DriverManager.getConnection("jdbc:oracle:thin:@192.201.32.92:1521:psprd1", "username", "password");
    String query = null;// w w w .  j  a  v a2s .  com
    ResultSet rset = null;
    query = "UPDATE t1 " + " SET id = ?";
    PreparedStatement stmt = con.prepareStatement(query);
    // stmt.setInt(paramIndex++, null);
    stmt.setNull(1, java.sql.Types.INTEGER);
    stmt.executeUpdate();
    stmt.close();
    query = "select id from t1 ";
    stmt = con.prepareStatement(query);
    rset = stmt.executeQuery();
    rset.next();
    System.out.println(rset.getString("id"));
    rset.close();
    stmt.close();
    con.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')");

    ResultSet rs = null;/*from   www .  ja  v a 2 s  . c om*/
    DatabaseMetaData meta = conn.getMetaData();
    rs = meta.getTables(null, null, null, new String[] { "TABLE", "VIEW" });
    while (rs.next()) {
        String tableOrViewName = rs.getString("TABLE_NAME");
        System.out.println("getTableNames(): tableOrViewName=" + tableOrViewName);
    }

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