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annotate Framework/Odbc/OdbcDatabase.h @ 522:c49136b34891 large-queries tip

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author Alain Mazy <am@orthanc.team>
date Fri, 05 Jul 2024 09:15:54 +0200
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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
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5 * Copyright (C) 2017-2023 Osimis S.A., Belgium
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6 * Copyright (C) 2024-2024 Orthanc Team SRL, Belgium
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7 * Copyright (C) 2021-2024 Sebastien Jodogne, ICTEAM UCLouvain, Belgium
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8 *
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9 * This program is free software: you can redistribute it and/or
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10 * modify it under the terms of the GNU Affero General Public License
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11 * as published by the Free Software Foundation, either version 3 of
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12 * the License, or (at your option) any later version.
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13 *
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14 * This program is distributed in the hope that it will be useful, but
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15 * WITHOUT ANY WARRANTY; without even the implied warranty of
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16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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17 * Affero General Public License for more details.
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18 *
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19 * You should have received a copy of the GNU Affero General Public License
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20 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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21 **/
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24 #pragma once
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26 #include "OdbcEnvironment.h"
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28 #include "../Common/IDatabaseFactory.h"
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30 #include <Compatibility.h>
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32 #include <set>
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35 namespace OrthancDatabases
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36 {
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37 class OdbcDatabase : public IDatabase
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38 {
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39 private:
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40 class OdbcImplicitTransaction;
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41 class OdbcExplicitTransaction;
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43 SQLHDBC handle_;
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44 Dialect dialect_;
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45 unsigned int dbmsMajorVersion_;
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47 public:
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48 OdbcDatabase(OdbcEnvironment& environment,
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49 const std::string& connectionString);
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51 virtual ~OdbcDatabase();
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52
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53 SQLHDBC GetHandle()
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54 {
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55 return handle_;
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56 }
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58 std::string FormatError();
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60 void ListTables(std::set<std::string>& target);
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62 // "name" must be in lower-case
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63 bool DoesTableExist(const std::string& name);
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65 void ExecuteMultiLines(const std::string& query);
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67 virtual Dialect GetDialect() const ORTHANC_OVERRIDE
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68 {
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69 return dialect_;
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70 }
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72 virtual IPrecompiledStatement* Compile(const Query& query) ORTHANC_OVERRIDE;
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74 virtual ITransaction* CreateTransaction(TransactionType type) ORTHANC_OVERRIDE;
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76 // https://en.wikipedia.org/wiki/History_of_Microsoft_SQL_Server
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77 unsigned int GetDbmsMajorVersion() const;
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78
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79 static IDatabaseFactory* CreateDatabaseFactory(unsigned int maxConnectionRetries,
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80 unsigned int connectionRetryInterval,
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81 const std::string& connectionString,
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82 bool checkEncodings);
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83 };
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84 }