JP2005018776A5 - - Google Patents

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JP2005018776A5
JP2005018776A5 JP2004185646A JP2004185646A JP2005018776A5 JP 2005018776 A5 JP2005018776 A5 JP 2005018776A5 JP 2004185646 A JP2004185646 A JP 2004185646A JP 2004185646 A JP2004185646 A JP 2004185646A JP 2005018776 A5 JP2005018776 A5 JP 2005018776A5
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xml
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query
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representation
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JP2005018776A (ja
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  1. リレーショナルおよび非リレーショナルデータソースにまたがる1つまたは複数のXML言語照会のセマンティック表現のための方法であって、
    少なくとも1つの照会を受け取ることと、
    前記少なくとも1つの照会を表すグラフ構造の複数のノードを定義することであって、前記グラフ構造が前記少なくとも1つの受け取った照会内で演算ごとに少なくとも1つのノードオブジェクトを有することと、
    前記少なくとも1つのノードオブジェクトのそれぞれを、演算子を使用してトランスレートすることと
    前記グラフ構造をゆするセマンティック表現を生成することと
    を備え、
    前記セマンティック表現は、前記1つまたは複数のXML言語照会の意味を明示的に記述し、前記セマンティック表現は、前記セマンティック表現を使用するバックエンドクエリエンジンからフロントエンド言語コンパイラを切り離すことを特徴とする方法。
  2. 前記セマンティック表現は、ターゲットクエリエンジンによる解釈および実行のために形成される中間言語表現であることを特徴とする請求項1に記載の方法。
  3. 前記非リレーショナルデータソースは、テキスト文書、スプレッドシート、および非リレーショナルデータベースのうちの1つまたは複数を備えることを特徴とする請求項2に記載の方法。
  4. 前記生成するステップは、前記受け取った照会の高水準の演算を明示的部分に落し込むことをさらに備えることを特徴とする請求項1に記載の方法。
  5. 前記明示的部分は、複数のXML言語にまたがって共通であることを特徴とする請求項4に記載の方法。
  6. 前記演算子は、特殊演算子、データソース、リテラル、ブール演算子、シーケンス演算子、算術演算子、文字列演算子、値比較演算子、ノード比較演算子、タプルスペース、関数定義および呼び出し、XMLナビゲーション、XML構造、XMLプロパティアクセサ、型演算子、言語固有演算子、およびデータ操作演算子のうちの1つまたは複数を備えることを特徴とする請求項1に記載の方法。
  7. 前記少なくとも1つの受け取った照会は、XMLクエリ言語およびXMLビュー定義言語のうちの1つまたは複数を備えることを特徴とする請求項1に記載の方法。
  8. 前記少なくとも1つの受け取った照会は、XPath、XSLT、XQuery、DML、OPath、および注釈付きスキーマ照会のうちの1つまたは複数を備えることを特徴とする請求項1に記載の方法。
  9. 前記セマンティック言語表現は、リレーショナルデータのXMLビューにわたってXMLクエリを可能にするものであることを特徴とする請求項1に記載の方法。
  10. 複数のデータソースにまたがってXMLクエリおよびXMLビューのうちの1つまたは複数の意味を表現するためのセマンティック解釈プログラムであって、
    照会を形成する前記XMLクエリおよびXMLビューのうちの1つまたは複数を受け取るための入力と、
    前記照会内の演算ごとにノードオブジェクトを定義するためのグラフ構造ジェネレータと、
    各ノードオブジェクトに演算子を割り当てるためのトランスレータであって、前記演算子は前記照会の演算を明示的部分に落し込むトランスレータと、
    前記明示的部分を、前記XMLクエリおよびXMLビューのうちの1つまたは複数の意味を表現するための中間言語表現として提供するための出力と
    を備え、
    前記中間言語表現は、前記中間言語表現を使用するバックエンドクエリエンジンからフロントエンド言語コンパイラを切り離すことを特徴とするセマンティック解釈プログラム。
  11. 前記複数のデータソースは、リレーショナルおよび非リレーショナルデータソースを備えたことを特徴とする請求項10に記載のセマンティック解釈プログラム。
  12. 前記非リレーショナルデータソースは、テキスト文書、スプレッドシート、および非リレーショナルデータベースのうちの1つまたは複数を備えたことを特徴とする請求項11に記載のセマンティック解釈プログラム。
  13. 前記演算子は、特殊演算子、データソース、リテラル、ブール演算子、シーケンス演算子、算術演算子、文字列演算子、値比較演算子、ノード比較演算子、タプルスペース、関数定義および呼び出し、XMLナビゲーション、XML構造、XMLプロパティアクセサ、型演算子、言語固有演算子、およびデータ操作のうちの1つまたは複数を備えたことを特徴とする請求項10に記載のセマンティック解釈プログラム。
  14. 前記明示的部分は、複数のXML言語にまたがって共通であることを特徴とする請求項10に記載のセマンティック解釈プログラム。
  15. 前記中間言語表現は、ターゲットクエリエンジンによる解釈および実行のために形成されることを特徴とする請求項10に記載のセマンティック解釈プログラム。
  16. 受け取った照会の中間言語表現の方法を実行するためのコンピュータ実行可能命令を有するコンピュータ読取り可能媒体であって、
    前記受け取った照会を形成するXMLクエリおよびXMLビューのうちの1つまたは複数を受け取ることと、
    前記少なくとも1つの受け取った照会を表すグラフ構造中の複数のノードオブジェクトを定義することであって、前記グラフ構造が前記受け取った照会内で演算ごとにノードオブジェクトを有することと、
    前記受け取った照会の演算を明示的部分に落し込む演算子を使用して各ノードをトランスレートすることと、
    リレーショナルおよび非リレーショナルデータソースのうちの1つまたは複数にわたる後続のクエリのための中間言語表現を形成する前記明示的部分に対応する命令を生成することと
    を備え、
    前記中間言語表現は、前記受け取った照会の意味の明示的な記述を備え、前記中間言語表現は、前記中間言語表現を使用するバックエンドクエリエンジンからフロントエンド言語コンパイラを切り離すことを特徴とするコンピュータ読取り可能媒体。
  17. 前記演算子は、特殊演算子、データソース、リテラル、ブール演算子、シーケンス演算子、算術演算子、文字列演算子、値比較演算子、ノード比較演算子、タプルスペース、関数定義および呼び出し、XMLナビゲーション、XML構造、XMLプロパティアクセサ、型演算子、言語固有演算子、およびデータ操作のうちの1つまたは複数を備えたことを特徴とする請求項16に記載のコンピュータ読取り可能媒体。
  18. 前記明示的部分は、複数のXML言語にまたがって共通であることを特徴とする請求項16に記載のコンピュータ読取り可能媒体。
  19. 前記受け取った照会は、XMLクエリ言語およびXMLビュー定義言語のうちの1つまたは複数を備えたことを特徴とする請求項16に記載のコンピュータ読取り可能媒体。
  20. 照会のセマンティック表現を生成するためのコンピュータシステムは、
    コンピュータ命令を実行するためのプロセッサと、
    少なくとも1つのモジュールであって、
    前記照会を形成するXMLクエリおよびXMLビューのうちの1つまたは複数を受け取るための入力機能と、
    前記照会内の演算ごとにノードオブジェクトを定義するためのグラフ構造ジェネレータと、
    各ノードオブジェクトに演算子を割り当てるためのトランスレータ機能であって、前記演算子が前記照会の演算を明示的部分に落し込むトランスレータ機能と、
    前記明示的部分を、前記XMLクエリおよびXMLビューの意味を表現するための中間言語表現として提供するための出力と
    を備えた少なくとも1つのモジュールと
    を備え、
    前記中間言語表現は、前記中間言語表現を使用するバックエンドクエリエンジンからフロントエンド言語コンパイラを切り離し、前記少なくとも1つのモジュールは、1つまたは複数のソフトウェアモジュールおよび1つまたは複数のハードウェアモジュールのうちの1つまたは複数を備えたことを特徴とするコンピュータシステム。
  21. 前記演算子は、特殊演算子、データソース、リテラル、ブール演算子、シーケンス演算子、算術演算子、文字列演算子、値比較演算子、ノード比較演算子、タプルスペース、関数定義および呼び出し、XMLナビゲーション、XML構造、XMLプロパティアクセサ、型演算子、言語固有演算子、およびデータ操作のうちの1つまたは複数を備えたことを特徴とする請求項20に記載のコンピュータシステム。
  22. 前記明示的部分は、複数のXML言語にまたがって共通であることを特徴とする請求項20に記載のコンピュータシステム。
JP2004185646A 2003-06-23 2004-06-23 クエリ中間言語の方法およびシステム Pending JP2005018776A (ja)

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US (1) US7519577B2 (ja)
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JP (1) JP2005018776A (ja)
KR (1) KR20050000348A (ja)
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