Example usage for java.sql ResultSet getString

List of usage examples for java.sql ResultSet getString

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Introduction

In this page you can find the example usage for java.sql ResultSet getString.

Prototype

String getString(String columnLabel) throws SQLException;

Source Link

Document

Retrieves the value of the designated column in the current row of this ResultSet object as a String in the Java programming language.

Usage

From source file:Main.java

public static void main(String[] args) throws Exception {
    ResultSet resultSet = null;
    Class.forName(DRIVER);/* w  w  w  .j a  v  a2  s.  c  o m*/
    Connection connection = DriverManager.getConnection(URL, USERNAME, PASSWORD);

    DatabaseMetaData metadata = connection.getMetaData();
    resultSet = metadata.getTypeInfo();
    while (resultSet.next()) {
        String typeName = resultSet.getString("TYPE_NAME");
        System.out.println("Type Name = " + typeName);
    }
    resultSet.close();
    connection.close();
}

From source file:TableTypes.java

public static void main(String args[]) {

    String url = "jdbc:mySubprotocol:myDataSource";
    Connection con;/*from ww  w. j a  va2s. c o  m*/

    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");

        DatabaseMetaData dbmd = con.getMetaData();
        String dbmsName = dbmd.getDatabaseProductName();
        ResultSet rs = dbmd.getTableTypes();
        System.out.print("The following types of tables are ");
        System.out.println("available in " + dbmsName + ":  ");

        while (rs.next()) {
            String tableType = rs.getString("TABLE_TYPE");
            System.out.println("    " + tableType);
        }

        rs.close();
        con.close();

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

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();
    // The '_' character represents any single character.
    // The '%' character represents any sequence of zero
    // or more characters.
    ResultSet rs = meta.getBestRowIdentifier(conn.getCatalog(), null, "survey",
            DatabaseMetaData.bestRowTemporary, false);
    while (rs.next()) {

        short actualScope = rs.getShort("SCOPE");
        String columnName = rs.getString("COLUMN_NAME");
        int dataType = rs.getInt("DATA_TYPE");
        String typeName = rs.getString("TYPE_NAME");
        int columnSize = rs.getInt("COLUMN_SIZE");
        short decimalDigits = rs.getShort("DECIMAL_DIGITS");
        short pseudoColumn = rs.getShort("PSEUDO_COLUMN");

        System.out.println("tableName=survey");
        System.out.println("scope=" + actualScope);
        System.out.println("columnName=" + columnName);
        System.out.println("dataType=" + dataType);
        System.out.println("typeName" + typeName);
        System.out.println("columnSize" + columnSize);
        System.out.println("decimalDigits" + decimalDigits);
        System.out.println("pseudoColumn" + pseudoColumn);
    }/*w  ww .  ja  v  a  2 s  . c  o m*/

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

From source file:Select.java

public static void main(String args[]) {
    String url = "jdbc:msql://carthage.imaginary.com/ora";
    Connection con = null;/*w ww  .ja va 2  s  .c  om*/

    try {
        String driver = "com.imaginary.sql.msql.MsqlDriver";

        Class.forName(driver).newInstance();
    } catch (Exception e) {
        System.out.println("Failed to load mSQL driver.");
        return;
    }
    try {
        con = DriverManager.getConnection(url, "borg", "");
        Statement select = con.createStatement();
        ResultSet result = select.executeQuery("SELECT test_id, test_val FROM test");

        System.out.println("Got results:");
        while (result.next()) { // process results one row at a time
            int key = result.getInt(1);
            String val = result.getString(2);

            System.out.println("key = " + key);
            System.out.println("val = " + val);
        }
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        if (con != null) {
            try {
                con.close();
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }
}

From source file:SetSavepoint.java

public static void main(String args[]) {

    String url = "jdbc:mySubprotocol:myDataSource";

    try {/*  www .  java  2s .c o m*/

        Class.forName("myDriver.className");

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

    try {

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

        String query = "SELECT COF_NAME, PRICE FROM COFFEES " + "WHERE TOTAL > ?";
        String update = "UPDATE COFFEES SET PRICE = ? " + "WHERE COF_NAME = ?";

        PreparedStatement getPrice = con.prepareStatement(query);
        PreparedStatement updatePrice = con.prepareStatement(update);

        getPrice.setInt(1, 7000);
        ResultSet rs = getPrice.executeQuery();

        Savepoint save1 = con.setSavepoint();

        while (rs.next()) {
            String cof = rs.getString("COF_NAME");
            float oldPrice = rs.getFloat("PRICE");
            float newPrice = oldPrice + (oldPrice * .05f);
            updatePrice.setFloat(1, newPrice);
            updatePrice.setString(2, cof);
            updatePrice.executeUpdate();
            System.out.println("New price of " + cof + " is " + newPrice);
            if (newPrice > 11.99) {
                con.rollback(save1);
            }

        }

        getPrice = con.prepareStatement(query);
        updatePrice = con.prepareStatement(update);

        getPrice.setInt(1, 8000);

        rs = getPrice.executeQuery();
        System.out.println();

        Savepoint save2 = con.setSavepoint();

        while (rs.next()) {
            String cof = rs.getString("COF_NAME");
            float oldPrice = rs.getFloat("PRICE");
            float newPrice = oldPrice + (oldPrice * .05f);
            updatePrice.setFloat(1, newPrice);
            updatePrice.setString(2, cof);
            updatePrice.executeUpdate();
            System.out.println("New price of " + cof + " is " + newPrice);
            if (newPrice > 11.99) {
                con.rollback(save2);
            }
        }

        con.commit();

        Statement stmt = con.createStatement();
        rs = stmt.executeQuery("SELECT COF_NAME, " + "PRICE FROM COFFEES");

        System.out.println();
        while (rs.next()) {
            String name = rs.getString("COF_NAME");
            float price = rs.getFloat("PRICE");
            System.out.println("Current price of " + name + " is " + price);
        }

        con.close();

    } catch (Exception e) {
        e.printStackTrace();
    }

}

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 dbMetaData = conn.getMetaData();
    ResultSet rs = dbMetaData.getProcedureColumns(conn.getCatalog(), null, "procedureNamePattern",
            "columnNamePattern");

    while (rs.next()) {
        // get stored procedure metadata
        String procedureCatalog = rs.getString(1);
        String procedureSchema = rs.getString(2);
        String procedureName = rs.getString(3);
        String columnName = rs.getString(4);
        short columnReturn = rs.getShort(5);
        int columnDataType = rs.getInt(6);
        String columnReturnTypeName = rs.getString(7);
        int columnPrecision = rs.getInt(8);
        int columnByteLength = rs.getInt(9);
        short columnScale = rs.getShort(10);
        short columnRadix = rs.getShort(11);
        short columnNullable = rs.getShort(12);
        String columnRemarks = rs.getString(13);

        System.out.println("stored Procedure name=" + procedureName);
        System.out.println("procedureCatalog=" + procedureCatalog);
        System.out.println("procedureSchema=" + procedureSchema);
        System.out.println("procedureName=" + procedureName);
        System.out.println("columnName=" + columnName);
        System.out.println("columnReturn=" + columnReturn);
        System.out.println("columnDataType=" + columnDataType);
        System.out.println("columnReturnTypeName=" + columnReturnTypeName);
        System.out.println("columnPrecision=" + columnPrecision);
        System.out.println("columnByteLength=" + columnByteLength);
        System.out.println("columnScale=" + columnScale);
        System.out.println("columnRadix=" + columnRadix);
        System.out.println("columnNullable=" + columnNullable);
        System.out.println("columnRemarks=" + columnRemarks);
    }//w w w  .j  av  a2s.co  m

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

From source file:MainClass.java

public static void main(String args[]) {
    Connection conn = null;/*from ww  w.j  a  v  a2  s  . c  o  m*/
    Statement stmt = null;
    ResultSet rs = null;
    try {
        conn = getConnection();
        stmt = conn.createStatement();
        String query = "select EmployeeID, LastName, FirstName from Employees";
        rs = stmt.executeQuery(query);
        while (rs.next()) {
            System.out.println(rs.getString("EmployeeID") + " " + rs.getString("LastName") + " "
                    + rs.getString("FirstName"));
        }
    } catch (Exception e) {
        // handle the exception
        e.printStackTrace();
        System.err.println(e.getMessage());
    } finally {
        try {
            rs.close();
            stmt.close();
            conn.close();
        } catch (Exception ee) {
            ee.printStackTrace();
        }
    }
}

From source file:BatchUpdate.java

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

    ResultSet rs = null;//from  w  ww.j  a  v  a2s .  co 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());
    }
}

From source file:Example.java

public static void main(String args[]) {
    try {/*ww w  . j ava 2 s .  co m*/
        Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");

        Connection con = DriverManager.getConnection("jdbc:odbc:inventory", "", "");
        Statement stmt = con.createStatement();
        ResultSet rs = stmt.executeQuery("SELECT * FROM inventory ORDER BY price");

        ResultSetMetaData rsmd = rs.getMetaData();
        int numberOfColumns = rsmd.getColumnCount();
        int rowCount = 1;
        while (rs.next()) {
            for (int i = 1; i <= numberOfColumns; i++) {
                System.out.print(rs.getString(i) + " ");
            }
            rowCount++;
        }
        stmt.close();
        con.close();
    } catch (Exception e) {
        System.out.println(e);
    }
}

From source file:Main.java

public static void main(String[] args) {
    Connection conn = null;/*w  w  w.  ja v  a2s .c  om*/
    Statement stmt = null;
    try {
        // Register JDBC driver
        Class.forName(JDBC_DRIVER);

        // Open a connection
        System.out.println("Connecting to database...");
        conn = DriverManager.getConnection(DB_URL, USER, PASS);

        // Execute a query
        System.out.println("Creating statement...");
        stmt = conn.createStatement();
        String sql;
        sql = "SELECT id, first, last, age FROM Employees";
        stmt.executeUpdate(
                "CREATE TABLE Employees ( id INTEGER IDENTITY, first VARCHAR(256),  last VARCHAR(256),age INTEGER)");
        stmt.executeUpdate("INSERT INTO Employees VALUES(1,'Jack','Smith', 100)");

        ResultSet rs = stmt.executeQuery(sql);

        // Extract data from result set
        while (rs.next()) {
            // Retrieve by column name
            int id = rs.getInt("id");
            int age = rs.getInt("age");
            String first = rs.getString("first");
            String last = rs.getString("last");

            System.out.print("ID: " + id);
            System.out.print(", Age: " + age);
            System.out.print(", First: " + first);
            System.out.println(", Last: " + last);
        }
        // Clean-up environment
        rs.close();
        stmt.close();
        conn.close();
    } catch (SQLException se) {
        se.printStackTrace();
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        // finally block used to close resources
        try {
            if (stmt != null)
                stmt.close();
        } catch (SQLException se2) {
        }
        try {
            if (conn != null)
                conn.close();
        } catch (SQLException se) {
            se.printStackTrace();
        }
    }
    System.out.println("Goodbye!");
}