Example usage for java.sql Statement executeQuery

Introduction

In this page you can find the example usage for java.sql Statement executeQuery.

Prototype

ResultSet executeQuery(String sql) throws SQLException;

Source Link

Document

Executes the given SQL statement, which returns a single ResultSet object.

Usage

From source file:Main.java

public static void main(String[] args) throws Exception {
    try {/*from  ww w .ja v  a2 s . c  om*/
        Connection conn = getHSQLConnection();

        conn.setAutoCommit(false);
        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 = conn.createStatement();
        ResultSet rs = st.executeQuery("SELECT * FROM survey");

        outputResultSet(rs);

        rs.close();
        st.close();
        conn.close();
    } catch (SQLException sqle) {
        String sqlMessage = sqle.getMessage();
        String sqlState = sqle.getSQLState();
        int vendorCode = sqle.getErrorCode();
        System.err.println("Exception occurred:");
        System.err.println("Message: " + sqlMessage);
        System.err.println("SQL state: " + sqlState);
        System.err.println("Vendor code: " + vendorCode + "\n----------------");
    }
}

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From source file:Main.java

public static void main(String[] args) throws Exception {
    Connection conn = getConnection();
    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();/*w  w w  .  j  a  v  a 2  s .  c o m*/
    ResultSet rs = st.executeQuery("SELECT * FROM survey");

    ResultSetMetaData rsMetaData = rs.getMetaData();

    int numberOfColumns = rsMetaData.getColumnCount();
    System.out.println("resultSet MetaData column Count=" + numberOfColumns);

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

---

From source file:Main.java

public static void main(String[] args) throws Exception {
    Connection conn = getHSQLConnection();
    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 ww w  . ja va2s . c  om
    ResultSet rs = st.executeQuery("SELECT * FROM survey");

    ResultSetMetaData rsMetaData = rs.getMetaData();

    int numberOfColumns = rsMetaData.getColumnCount();
    System.out.println("resultSet MetaData column Count=" + numberOfColumns);

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

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From source file:GetNumberOfRowsScrollableResultSet_MySQL.java

public static void main(String[] args) {
    Connection conn = null;/*w  w  w  . j av  a  2s .  co  m*/
    Statement stmt = null;
    ResultSet rs = null;
    try {
        conn = getConnection();
        String query = "select id from employees";
        stmt = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_READ_ONLY);

        rs = stmt.executeQuery(query);
        // extract data from the ResultSet scroll from top
        while (rs.next()) {
            String id = rs.getString(1);
            System.out.println("id=" + id);
        }
        // move to the end of the result set
        rs.last();
        // get the row number of the last row which is also the row count
        int rowCount = rs.getRow();
        System.out.println("rowCount=" + rowCount);
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        try {
            rs.close();
            stmt.close();
            conn.close();
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}

---

From source file:com.alifi.jgenerator.spring.SpringGeneratorFactory.java

public static void main(String[] args) {
    @SuppressWarnings("unused")
    ClassPathXmlApplicationContext ctx = new ClassPathXmlApplicationContext("META-INF/SpringContext.xml");

    for (DataSourceMap m : DataSourceUtil.getDataSourceMap()) {

        DataSource ds = m.getDataSource();
        try {/*from   www .  ja v a  2 s.  com*/
            Connection con = ds.getConnection();
            DatabaseMetaData dmd = con.getMetaData();
            String catalog = con.getCatalog();
            String schemaPattern = dmd.getSchemaTerm();
            System.out.println("Catalog:" + con.getCatalog() + " schemaPattern:" + schemaPattern);
            ResultSet rs = dmd.getTables(catalog, schemaPattern, "time_zone_transition", null);

            Statement s = null;
            ResultSet xrs = null;
            try {
                s = con.createStatement();
                xrs = s.executeQuery("select * from time_zone_transition");
                if (xrs.next()) {
                    p("xxxxxxxxxxxxxxxxxxxxxxxx:" + xrs.getString(1));
                }
            } catch (SQLException e) {
                e.printStackTrace();
            } finally {
            }

            while (rs.next()) {
                p("-----------------------");
                p("TABLE_CAT  :" + rs.getString("TABLE_CAT"));
                p("TABLE_SCHEM:" + rs.getString("TABLE_SCHEM"));
                p("TABLE_NAME :" + rs.getString("TABLE_NAME"));
                p("TABLE_TYPE :" + rs.getString("TABLE_TYPE"));
                p("REMARKS:   " + rs.getString("REMARKS"));

                p("11111111111111111:" + rs.getMetaData().getColumnClassName(1));
                // 
                ResultSet pkeyRs = dmd.getPrimaryKeys(catalog, schemaPattern, rs.getString("TABLE_NAME"));
                while (pkeyRs.next()) {
                    p("M-------------M");
                    p("------COLUMN_NAME:" + pkeyRs.getString("COLUMN_NAME"));
                    p("------KEY_SEQ:" + pkeyRs.getString("KEY_SEQ"));
                    p("------PK_NAME:" + pkeyRs.getString("PK_NAME"));
                }
                // 
                ResultSet rss = dmd.getColumns(catalog, schemaPattern, rs.getString("TABLE_NAME"), null);
                int cCount = rss.getMetaData().getColumnCount();
                for (int i = 1; i <= cCount; i++) {
                    p("-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=");
                    p("       getColumnClassName:" + rss.getMetaData().getColumnClassName(i));
                    p("       getColumnLabel:" + rss.getMetaData().getColumnLabel(i));
                    p("       getColumnName:" + rss.getMetaData().getColumnName(i));
                    p("       getColumnTypeName:" + rss.getMetaData().getColumnTypeName(i));
                    p("       getColumnType:" + ColumnTypes.getType(rss.getMetaData().getColumnType(i)));
                }
            }
            rs = dmd.getTableTypes();

            while (rs.next()) {
                p("=========================");
                p("TABLE_TYPE: " + rs.getString("TABLE_TYPE"));
            }
            // ResultSetMetaData rsmd = rs.getMetaData();

            // int numberOfColumns = rsmd.getColumnCount();
            // for (int i = 1; i <= numberOfColumns; i++)
            // p(rsmd.getColumnName(i));
        } catch (SQLException e) {
            e.printStackTrace();
        }

        p(m.toString());
    }
}

---

From source file:PooledConnectionExample.java

public static void main(String[] args) {
    Connection connection = null;
    Statement statement = null;
    ResultSet resultSet = null;//from   w  w w  .  j  a va 2  s.c om

    try {
        connection = getConnection();
        statement = connection.createStatement();
        String selectEmployeesSQL = "SELECT * FROM employees";
        resultSet = statement.executeQuery(selectEmployeesSQL);

        while (resultSet.next()) {
            printEmployee(resultSet);
        }
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        closeAll(resultSet, statement, connection);
    }
}

---

From source file:DemoScrollableResultSet_MySQL.java

public static void main(String[] args) {
    Connection conn = null;//from  w  w  w  .j  av  a  2  s. c o m
    Statement stmt = null;
    ResultSet rs = null;
    try {
        conn = getConnection();
        String query = "select id, name from employees";
        stmt = conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_READ_ONLY);
        rs = stmt.executeQuery(query);
        // extract data from the ResultSet scroll from top
        while (rs.next()) {
            String id = rs.getString(1);
            String name = rs.getString(2);
            System.out.println("id=" + id + "  name=" + name);
        }
        // scroll from the bottom
        rs.afterLast();
        while (rs.previous()) {
            String id = rs.getString(1);
            String name = rs.getString(2);
            System.out.println("id=" + id + "  name=" + name);
        }
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        // release database resources
        try {
            rs.close();
            stmt.close();
            conn.close();
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}

---

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 a2  s  .co m
    Statement stmt = conn.createStatement();

    stmt.executeUpdate("create table survey (id int, name CHAR(5) );");

    stmt.executeUpdate("INSERT INTO survey(id, name)VALUES(111, '123456789')");

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

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

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

---

From source file:Main.java

public static void main(String[] args) {
    Connection conn = null;// w w w. ja  va2  s .com
    Statement stmt = null;
    ResultSet rs = null;
    try {
        conn = getConnection();
        String query = "select id, name from employees";
        stmt = conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_UPDATABLE);
        rs = stmt.executeQuery(query);
        while (rs.next()) {
            String id = rs.getString(1);
            String name = rs.getString(2);
            System.out.println("id=" + id + "  name=" + name);
        }
        rs.first();
        rs.deleteRow();
        rs.beforeFirst();
        while (rs.next()) {
            String id = rs.getString(1);
            String name = rs.getString(2);
            System.out.println("id=" + id + "  name=" + name);
        }
    } catch (Exception e) {
        e.printStackTrace();
        System.exit(1);
    } finally {
        try {
            rs.close();
            stmt.close();
            conn.close();

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

---

From source file:Main.java

public static void main(String[] args) {
    Connection conn = null;/*ww w .  j a v a  2s. c om*/
    Statement stmt = null;
    try {
        Class.forName(JDBC_DRIVER);
        conn = DriverManager.getConnection(DB_URL, USER, PASS);
        stmt = conn.createStatement();
        String sql = "SELECT id, first, last, age FROM Employees";
        ResultSet rs = stmt.executeQuery(sql);
        while (rs.next()) {
            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);
        }
        rs.close();
        stmt.close();
        conn.close();
    } catch (SQLException se) {
        se.printStackTrace();
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        try {
            if (stmt != null)
                stmt.close();
            if (conn != null)
                conn.close();
        } catch (SQLException se) {
            se.printStackTrace();
        }
    }
}

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