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annotate m-toolbox/classes/+utils/@jmysql/query.m @ 33:5e7477b94d94 database-connection-manager

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author Daniele Nicolodi <nicolodi@science.unitn.it>
date Mon, 05 Dec 2011 16:20:06 +0100
parents 91f21a0aab35
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91f21a0aab35 Update utils.jquery
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1 function varargout = query(conn, query, varargin)
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2 % QUERY Query an LTPDA repository.
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3 %
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4 % DEPRECATED! Use utils.mysql.execute instead!
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5 %
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6 % CALL: [results] = query(conn, q, varargin)
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7 % [results, cnames] = query(conn, q, varargin)
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8 %
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9 % INPUTS:
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10 %
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11 % conn - database connection object implementing java.sql.Connection
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12 % query - a valid SQL query
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13 % varargin - optional query parameters
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14 %
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15 % OUTPUTS:
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16 %
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17 % results - a cell-array of the results
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18 % cnames - a cell-array of the column names in the query
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19 %
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20 % VERSION: $Id: query.m,v 1.1 2009/07/27 19:46:21 hewitson Exp $
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21 %
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23 warning('!!! deprecated. use utils.mysql.execute instead');
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25 if ~isa(conn, 'java.sql.Connection')
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26 error('### first argument should be a java.sql.Connection object');
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27 end
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29 stmt = conn.prepareStatement(query);
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30 for kk = 1:numel(varargin)
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31 stmt.setObject(kk, varargin{kk});
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32 end
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34 % execute query
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35 resultSet = stmt.executeQuery();
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37 % set outputs
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38 if nargout > 0
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39 varargout{1} = resultSet;
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40 if nargout == 2
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41 % get column names from the meta data
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42 rsm = resultSet.getMetaData;
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43 Nc = rsm.getColumnCount;
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44 colnames = cell(1,Nc);
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45 for kk=1:Nc
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46 colnames{kk} = char(rsm.getColumnName(kk));
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47 end
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48 varargout{2} = colnames;
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49 end
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50 end
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