Java SQL Query runSqlSelect(String sqlQuery, Connection databaseConnection)

Description

run Sql Select

License

Open Source License

Declaration

public static String runSqlSelect(String sqlQuery, Connection databaseConnection) throws SQLException 

Method Source Code

//package com.java2s;
/*/*  w w w.j  a  v  a 2  s.com*/
 * Syncany, www.syncany.org
 * Copyright (C) 2011-2015 Philipp C. Heckel <philipp.heckel@gmail.com>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.sql.SQLException;

public class Main {
    public static String runSqlSelect(String sqlQuery, Connection databaseConnection) throws SQLException {
        StringBuilder queryResult = new StringBuilder();

        try (PreparedStatement preparedStatement = databaseConnection.prepareStatement(sqlQuery)) {
            try (ResultSet actualResultSet = preparedStatement.executeQuery()) {
                ResultSetMetaData metaData = actualResultSet.getMetaData();

                boolean isFirstRow = true;
                int columnsCount = metaData.getColumnCount();

                while (actualResultSet.next()) {
                    if (!isFirstRow) {
                        queryResult.append('\n');
                    } else {
                        isFirstRow = false;
                    }

                    for (int i = 1; i <= columnsCount; i++) {
                        queryResult.append(actualResultSet.getString(i));

                        if (i != columnsCount) {
                            queryResult.append(',');
                        }
                    }
                }
            }
        }

        return queryResult.toString();
    }
}

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4. queryReturnRS(String sql)
5. runQuery(Connection con, String query)