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>>-+----------------------+--+-------------------------+--------> '-RESULT LIMIT--number-' '-EXPANSION LIMIT--number-' >--+------------------------------------------+-----------------> '-STOP SEARCH AFTER--number--+-DOCUMENT--+-' '-DOCUMENTS-' >--+-| boolean-search-expression |-+--------------------------->< '-| freetext-argument |---------' Boolean-search-expression: |--+-| search-term |-------------------------------------------------+--| '-| boolean-search-expression |--| operator-or |--| search-term |-' search-term: |--+-| search-factor |-----------------------------------------------+--| +-| search-term |--| operator-and |--| search-factor |------------+ +-| search-term |--| operator-accum |--| search-factor |----------+ '-| search-term |--| operator-minus |--| positive-search-factor |-' Search-factor: |--+-----+--| positive-search-factor |--------------------------| '-NOT-' Positive-search-factor: |--+-+------------------------------------------------------------+--| search-primary |-+--| | | .-,----------------------------------. | | | | V | | | | '-+-SECTION--+--(----"section-name"--+----------------+-+--)-' | | '-SECTIONS-' '-WEIGHT--number-' | '-attribute-factor-------------------------------------------------------------------' Search-primary: |--+-| text-literal |-------------------+-----------------------| +-| context-condition |--------------+ +-| thesaurus-invocation |-----------+ +-(--| boolean-seach-expression |--)-+ '-(--| text-literal-list |--)--------' Operator-and: |--&------------------------------------------------------------| Operator-or: |--|------------------------------------------------------------| Operator-accum: |--ACCUM--------------------------------------------------------| Operator-minus: |--MINUS--------------------------------------------------------| Context-condition: |----| context-argument |--| IN-SAME |--| context-unit |--| AS |--| context-argument |----> >--+-------------------------------+----------------------------| | .---------------------------. | | V | | '---AND--| Context-argument |-+-' Context-argument: |--+-| text-literal |------------+------------------------------| +-(--| text-literal-list |--)-+ '-| thesaurus-invocation |----' Text-literal-list: .-,------------. V | |----text-literal-+---------------------------------------------| Context-unit: |--+-PARAGRAPH-+------------------------------------------------| '-SENTENCE--' Text-literal: |--+--------------------------------+--+----------------+-------> +-PRECISE-FORM-OF----------------+ '-WEIGHT--number-' +-STEMMED-FORM-OF----------------+ '-FUZZY-FORM-OF--+-------------+-' '-match-level-' >--"word-or-phrase"--+----------------------------+-------------| '-ESCAPE--"escape-character"-' thesaurus-invocation: |--THESAURUS--"thesaurus-name"--EXPAND--------------------------> >--+-+-SYNONYM------------+--TERM OF--| text-literal |-------------------+--| | +-RELATED------------+ | | '-RELATION--(number)-' | '-+-BROADER--+--TERM OF--| text-literal |--+------------------------+-' '-NARROWER-' '-FOR--count--+-LEVEL--+-' '-LEVELS-' Attribute-factor: |--ATTRIBUTE--"attribute-name"----------------------------------> >--+-BETWEEN--valueFrom AND valueTo-+---------------------------| +->--valueFROM-------------------+ '-<--valueTO---------------------' freetext-argument: |--IS-ABOUT--+----------+--"word-or-phrase"---------------------> '-language-' >--+----------------------------+-------------------------------| '-ESCAPE--"escape-character"-'
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SQL °Ë»ö Àμö ÁöÁ¤ÀÇ ¿¹¸¦ ÂüÁ¶ÇϽʽÿÀ.
°Ë»ö ¸Å°³º¯¼ö
¸®ÅÏµÈ °á°ú¸¦ äÁ¡ÇÏ°í °¡Àå ÁÁÀº °á°ú¸¸À» ó¸®ÇÏ·Á¸é RESULT LIMIT¸¦ SCORE ÇÔ¼ö¿Í ÇÔ²² »ç¿ëÇϽʽÿÀ.
µðÆúÆ® °ªÀº ¾øÀ¸¸ç number °ªÀº ¾çÀÇ Á¤¼ö¿©¾ß ÇÕ´Ï´Ù.
"Pilot" MINUS "passenger" & "vehicle" | "transport" & "public"
À§ÀÇ ½ÄÀº ´ÙÀ½°ú °°ÀÌ Æò°¡µË´Ï´Ù.
(("Pilot" MINUS "passenger") & ("vehicle")) | ("transport" & "public")
ACCUM ¿¬»êÀÚ´Â ºÎ¿ï Àμö Áß Çϳª°¡ Âü(OR ¿¬»êÀÚ¿Í ºñ±³µÊ)À¸·Î Æò°¡µÇ¸é ÂüÀ¸·Î Æò°¡µË´Ï´Ù. ¼øÀ§ °ªÀº µÎ ÇÇ¿¬»êÀÚÀÇ ¼øÀ§ °ªÀ» ´©ÀûÇÏ¿© °è»êµË´Ï´Ù. ACCUM ¿¬»êÀÚ´Â AND¿Í µ¿ÀÏÇÑ ¹ÙÀεù(¿ì¼±¼øÀ§)À» °®½À´Ï´Ù. MINUS ¿¬»êÀÚ´Â ¿ÞÂÊ ÇÇ¿¬»êÀÚ°¡ ÂüÀ¸·Î Æò°¡µÇ¸é ÂüÀ¸·Î Æò°¡µË´Ï´Ù. ¼øÀ§ °ªÀº ¿À¸¥ÂÊ ÇÇ¿¬»êÀÚ°¡ ÂüÀ¸·Î Æò°¡µÈ °æ¿ì ¿ÞÂÊ ÇÇ¿¬»êÀÚÀÇ ¼øÀ§ °ªÀ» ÀÐÀº ÈÄ, Æä³ÎƼ¸¦ »©¼ °è»êÇÕ´Ï´Ù.
°Ë»öÀÌ Á¦ÇѵǴ ±¸Á¶ÈµÈ ¹®¼¿¡¼ Çϳª ÀÌ»óÀÇ ¼½¼ÇÀ» ÁöÁ¤Çϴ Ű¿öµå. ¼½¼Ç À̸§Àº À妽º ÀÛ¼º½Ã ÁöÁ¤µÈ ¸ðµ¨ ÆÄÀÏ¿¡ ÁöÁ¤µÇ¾î¾ß Çϸç ÀÚ¼¼ÇÑ Á¤º¸´Â CREATE INDEX¸¦ ÂüÁ¶ÇϽʽÿÀ.
¼½¼Ç À̸§Àº ´ë¼Ò¹®ÀÚ¸¦ ±¸ºÐÇÕ´Ï´Ù. ¸ðµ¨ ÆÄÀÏ ¹× Äõ¸®¿¡¼ ¼½¼Ç À̸§ÀÌ °°ÀºÁö È®ÀÎÇϽʽÿÀ.
ÀÌ ¸ðµ¨Àº ½Äº° °¡´ÉÇÑ ¼½¼ÇÀ» Æ÷ÇÔÇÏ´Â ¹®¼ÀÇ ±¸Á¶¿¡ ´ëÇØ ¼³¸íÇϹǷΠÀÌ ¼½¼ÇÀÇ ÄÁÅÙÃ÷´Â °³º°ÀûÀ¸·Î °Ë»öÇÒ ¼ö ÀÖ½À´Ï´Ù. ¸¶½ºÅ· ¹®ÀÚ¸¦ »ç¿ëÇÏ¿© ¼½¼Ç À̸§À» ¸¶½ºÅ©ÇÒ ¼ö ¾ø½À´Ï´Ù. ¼½¼Ç Áß Çϳª¿¡ search primary°¡ ÀÖÀ¸¸é SECTIONÀýÀ» »ç¿ëÇÑ positive-search-factor´Â ÂüÀ¸·Î Æò°¡µË´Ï´Ù.
¹®¼¿¡ È®´ëµÈ °¢ ÄÁÅØ½ºÆ® ÀμöÀÇ ÅØ½ºÆ® ¸®ÅÍ·² Áß ÃÖ¼ÒÇÑ Çϳª°¡ Æ÷ÇÔµÈ ÄÁÅØ½ºÆ® ´ÜÀ§(¹®´Ü °¢ ¹®Àå)°¡ ÀÖ´Â °æ¿ì Á¶°ÇÀº ÂüÀ¸·Î Æò°¡µË´Ï´Ù. ´ÙÀ½ ¿¹¿¡ ±¸¹®ÀÌ Ç¥½ÃµË´Ï´Ù.
("a","b") IN SAME PARAGRAPH AS ("c","d") AND THESAURUS "t1" EXPAND SYNONYM TERM OF "e".
e1, e2¸¦ eÀÇ µ¿ÀǾî¶ó°í °¡Á¤ÇÏ¸é ´ÙÀ½ ´Ü¶ôÀÌ ÀÏÄ¡ÇÒ ¼ö ÀÖ½À´Ï´Ù.
".. a c e .." , ".. a c e1..", "a c e2..", ".. a d e .." , ".. a d e1..", "a d e2..", ".. b c e .." , ".. b c e1..", "b c e2..", ".. b d e .." , ".. b d e1..", "b d e2..".
´Ü¾î¸¦ ¾î°£À¸·Î ÁÙÀÌ´Â ¹æ¹ýÀº ¾ð¾î¿¡ µû¶ó ´Ù¸¨´Ï´Ù. ÇöÀç´Â ¿µ¾î¸¸ÀÌ Áö¿øµÇ¸ç ´Ü¾î´Â ÀÏ¹Ý È°¿ë ¾î¹Ì¸¦ µû¶ó¾ß ÇÕ´Ï´Ù.
Å«µû¿ÈÇ¥¸¦ Æ÷ÇÔÇÏ´Â ¹®ÀÚ¿À» °Ë»öÇÏ·Á¸é Å«µû¿ÈÇ¥¸¦ µÎ ¹ø ÀÔ·ÂÇϽʽÿÀ. ¿¹¸¦ µé¾î, "wildcard"¶ó´Â ÅØ½ºÆ®¸¦ °Ë»öÇÏ·Á¸é ´ÙÀ½À» ÀÔ·ÂÇϽʽÿÀ.
"""wildcard"" character"
¿¹¿¡¼ ÇϳªÀÇ µû¿ÈÇ¥ ¼¼Æ®¸¸À» °Ë»öÇÒ ¼ö ÀÖ½À´Ï´Ù. ¿¬¼ÓÀ¸·Î µÎ °³ÀÇ µû¿ÈÇ¥¸¦ °Ë»öÇÒ ¼ö ¾ø½À´Ï´Ù. ¶ÇÇÑ °¢ ´Ü¾î ¶Ç´Â ¹®±¸¿¡ ´ëÇØ ÃÖ´ë 128¹ÙÀÌÆ® ±æÀ̰¡ ÀÖ½À´Ï´Ù.
°Ë»ö Áß¿¡´Â 1¹ÙÀÌÆ® ¹®ÀÚ¸¸ »ç¿ëÇÒ ¼ö ÀÖ½À´Ï´Ù. 2¹ÙÀÌÆ® ¹®ÀÚ´Â Çã¿ëµÇÁö ¾Ê½À´Ï´Ù.
»ç¿ëÀÚ Á¤ÀÇ °ü°èÀÇ °æ¿ì, DB2TEXTTHÀÇ °ü°è Á¤ÀÇ¿¡ ÇØ´çÇÏ´Â RELATION(number)À» »ç¿ëÇϽʽÿÀ.
½Ã¼Ò·¯½º(thesaurus)·ÎºÎÅÍ ´Ù¸¥ °Ë»ö ´Ü¾î¸¦ Ãß°¡ÇÒ text-literal
Á¦°øµÈ °ü°è¿¡ ´ëÇÑ °Ë»ö ¿ë¾î¸¦ È®ÀåÇϱâ À§ÇØ »ç¿ëÇÒ ½Ã¼Ò·¯½º(thesaurus)¿¡ ÀÖ´Â ¿ë¾îÀÇ ·¹º§(±íÀÌ) ¼ö¸¦ ÁöÁ¤ÇÏ´Â µ¥ »ç¿ëÇϴ Ű¿öµå. ÀÌ Å°¿öµå¸¦ ÁöÁ¤ÇÏÁö ¾ÊÀ¸¸é °è¼ö 1ÀÌ »ç¿ëµË´Ï´Ù. ±íÀÌÀÇ °ªÀº ¾çÀÇ Á¤¼ö °ªÀ̾î¾ß ÇÕ´Ï´Ù.
attribute-factor´Â DOUBLE À¯ÇüÀ» °¡Áø ¼Ó¼º¿¡¸¸ Çã¿ëµË´Ï´Ù. °ªÀÇ Á¤¹Ðµµ´Â 15ÀÚ¸®¼ö·Î º¸ÀåµË´Ï´Ù. 16ÀÚ¸®¼ö ÀÌ»óÀº ¹Ý¿Ã¸²µË´Ï´Ù. attribute-name, valueFrom ¹× valueTo¿¡¼´Â ¸¶½ºÅ· ¹®ÀÚ¸¦ »ç¿ëÇÒ ¼ö ¾ø½À´Ï´Ù. ´ÙÀ½ ¼³¸íÀ» Âü°íÇϽʽÿÀ.
CREATE INDEX ¸í·ÉÀÇ ¼Ó¼º À̸§ÀÌ µû¿ÈÇ¥¸¦ »ç¿ëÇÏ¿© ÁöÁ¤µÇ°Å³ª ¸ðµ¨ ÆÄÀÏ¿¡ Á¤ÀÇµÈ °æ¿ì, ÁöÁ¤µÈ ¼Ó¼º À̸§Àº ¿ÏÀüÇÏ°Ô ÀÏÄ¡ÇØ¾ß ÇÕ´Ï´Ù. ¹Ý¸é, CREATE INDEX ¸í·É¿¡ µû¿ÈÇ¥¸¦ ÁöÁ¤ÇÏÁö ¾ÊÀ¸¸é ¼Ó¼º À̸§Àº ´ë¹®ÀÚ¿©¾ß ÇÕ´Ï´Ù.
language¿¡ Çã¿ëµÇ´Â °ªÀº ºÎ·Ï E, Áö¿ø ¾ð¾î¿¡ ¼³¸íµÇ¾î ÀÖÀ¸¸ç ű¹¾îÀÇ °æ¿ì¿¡¸¸ ÇØ´çµË´Ï´Ù. °ªÀ» ÁöÁ¤ÇÏÁö ¾ÊÀ¸¸é µðÆúÆ®·Î ¹Ì±¹ ¿µ¾î°¡ »ç¿ëµË´Ï´Ù. language´Â word-or-phraseÀÇ Åäūȿ¡¸¸ »ç¿ëµË´Ï´Ù.
Á¡¼ö °ªÀÌ ¿äûµÇ°í °Ë»ö °á°ú°¡ Á¡¼ö °ª¿¡ µû¶ó ¼ø¼°¡ ÁöÁ¤µÈ °æ¿ì¿¡¸¸ IS ABOUT°¡ À¯¿ëÇÕ´Ï´Ù.