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¦b¹Á¸Õ¥»¸`©Ò´£¨Ñªº½d¨Ò«e¡A§A¥²¶·¥ý¥H¤â°Êªº¤è¦¡¨Ó³]©w DSN¡A½Ð±N¸ê®Æ¨Ó·½¦WºÙ dsnScore02 «ü¨ì¥»¾÷¦ì¸mªº score02.mdb¡C¦P®É¦b¥H¤Uªº½d¨Ò¤¤¡A¨C¦¸¦b¶i¦æ¸ê®Æ®w¦s¨ú«e¡A§Ú­Ì·|±N score01.mdb ªº¤º®e«þ¨©¨ì score02.mdb¡A¥HÁ×§K¦]¬°¦h­Ó½d¨Òµ{¦¡½Xªº°õ¦æ¥ý«á¶¶§Ç¤£¦P¡A³y¦¨©Ò±oµ²ªG©M¥»®Ñ´y­z¤£¤@­Pªº±¡ªp¡C

­º¥ý¡A§Ú­Ì¨Ó¬Ý¬Ý¦p¦ó¸g¥Ñ SQL ©R¥O¨Ó·s¼W¤@µ§¸ê®Æ¨ì¸ê®Æ®wªº¡C¤U­±³o­Ó½d¨Ò¡A±N·s¼W¤@µ§©m¦W¬°¡u¤j¤O¤ô¤â¡vªº¸ê®Æ¡A¹ïÀ³ªº SQL ©R¥O¬O

INSERT INTO score (studentID, studentName, final) VALUES (''00'', ''¤j¤O¤ô¤â'', 100)

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Example 1: 13-»P¸ê®Æ®wªº¾ã¦X/insertData01.mcopyfile('score01.mdb', 'score02.mdb'); % ±N score01.mdb «þ¨©¨ì score02.mdb dsn = 'dsnScore02'; % ³]©w¸ê®Æ¨Ó·½¦WºÙ¡]«ü¨ì score02.mdb¡^ logintimeout(5); % ³]©w¹Á¸Õ³sµ²¸ê®Æ®wªº®É¶¡ conn = database(dsn, '', ''); % ³sµ²¸ê®Æ®w % ³]©w·s¼W¸ê®Æ©Ò¥Îªº SQL ©R¥O sql = 'INSERT INTO score (studentID, studentName, final) VALUES (''00'', ''¤j¤O¤ô¤â'', 100)'; cursor = exec(conn, sql); % °õ¦æ SQL ©R¥O % ³]©w¬d¸ß¸ê®Æ¥Îªº SQL ©R¥O sql = 'select * from score'; cursor = exec(conn, sql); cursor = fetch(cursor); newScore = cursor.data % Åã¥Ü§ó·s«á final Äæ¦ìªº¸ê®Æ close(cursor); % µ²§ô cursor ª«¥ó close(conn); % µ²§ô¸ê®Æ®w³sµ²newScore = '914340' '³Å«ä¬°' [82] [ 93] [ 87] [ 77] [ 80] [0] '916310' 'Á§³ÕÁ¾' [83] [ 93] [ 93] [ 99] [ 80] [0] '882545' '¤ý»öã¸' [86] [ 96] [ 92] [ 99] [ 77] [0] '8802142' '³\»F­â' [86] [ 96] [ 92] [ 90] [ 78] [0] '914358' '®}­Z­ì' [87] [ 93] [ 87] [ 90] [ 80] [0] '898316' '§õ«T¤¯' [87] [ 95] [ 94] [ 99] [ 88] [0] '914370' '³¯´¸' [88] [ 93] [ 93] [ 95] [ 79] [0] '916716' 'Áéºú' [88] [ 94] [ 87] [ 99] [ 77] [0] '914307' 'Á©ú®p' [89] [ 93] [ 93] [ 90] [ 77] [0] '882548' 'Ĭª÷Às' [89] [ 94] [ 90] [ 99] [ 78] [0] '916701' 'ù·çÅï' [90] [ 94] [ 90] [ 90] [ 77] [0] '916717' 'ªL«C¼z' [90] [ 97] [ 92] [ 99] [ 80] [0] '00' '¤j¤O¤ô¤â' [ 0] [NaN] [NaN] [NaN] [100] [0]

¥Ñ©ó§Ú­Ì¨Ã¨S¦³«ü©w¨C¤@­ÓÄæ¦ìªº­È¡A©Ò¥H³o¨ÇÄæ¦ìªº­È·|¥Ñ¸ê®Æ®w·íªì©Ò³]©wªºÄæ¦ì¹w³]­È©Ò¨ú¥N¡A¦pªG³o¨Ç¸ê®Æ®wÄæ¦ì¨S¦³¹w³]­È¡AMATLAB §ì¦^¨Óªº¸ê®Æ´N·|¥X²{ NaN¡C

±µµÛ¡A§Ú­Ì¨Ó¬Ý¬Ý¦p¦ó¸g¥Ñ SQL ©R¥O¨Ó­×§ï¸ê®Æ®w¡C¤U­±³o­Ó½d¨Ò¡A±N©Ò¦³´Á¥½¦Ò¤À¼Æ¡]final Äæ¦ì¡^¤j©ó©Îµ¥©ó 80 ¤Àªº¦P¾Ç¡Aª½±µ½Õ¦¨ 100 ¤À¡A¹ïÀ³ªº SQL ©R¥O¬O

UPDATE score SET final=100 WHERE final>=80

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Example 2: 13-»P¸ê®Æ®wªº¾ã¦X/updateData01.mcopyfile('score01.mdb', 'score02.mdb'); % ±N score01.mdb «þ¨©¨ì score02.mdb dsn = 'dsnScore02'; % ³]©w¸ê®Æ¨Ó·½¦WºÙ¡]«ü¨ì score02.mdb¡^ logintimeout(5); % ³]©w¹Á¸Õ³sµ²¸ê®Æ®wªº®É¶¡ conn = database(dsn, '', ''); % ³sµ²¸ê®Æ®w % ³]©w§ó·s¸ê®Æ©Ò¥Îªº SQL ©R¥O sql = 'UPDATE score SET final=100 WHERE final>=80'; cursor = exec(conn, sql); % °õ¦æ SQL ©R¥O % ³]©w¶i¦æ¸ê®Æ¬d¸ßªº SQL ©R¥O sql = 'select studentName, final from score'; % ³]©w SQL ©R¥O cursor = exec(conn, sql); cursor = fetch(cursor); newScore = cursor.data % Åã¥Ü§ó·s«á final Äæ¦ìªº¸ê®Æ close(cursor); % µ²§ô cursor ª«¥ó close(conn); % µ²§ô¸ê®Æ®w³sµ²newScore = '³Å«ä¬°' [100] 'Á§³ÕÁ¾' [100] '¤ý»öã¸' [ 77] '³\»F­â' [ 78] '®}­Z­ì' [100] '§õ«T¤¯' [100] '³¯´¸' [ 79] 'Áéºú' [ 77] 'Á©ú®p' [ 77] 'Ĭª÷Às' [ 78] 'ù·çÅï' [ 77] 'ªL«C¼z' [100]

¦b¤W­z½d¨Ò¤¤¡A¦³¥|­Ó¤Hªº´Á¥½¦Ò¦¨ÁZ¡]final Äæ¦ì¡^³Q­×§ï¬° 100 ¤À¡C

§Ú­Ì¤]¥i¤w¸g¥ÑSQL ©R¥O¨Ó§R°£¸ê®Æ¡C¤U­±³o­Ó½d¨Ò¡A±N©Ò¦³´Á¥½¦Ò¤À¼Æ¡]final Äæ¦ì¡^¤p©ó 80 ¤Àªº¦P¾Ç¡Aª½±µ§R°£¡A¹ïÀ³ªº SQL ©R¥O¬O

DELETE FROM score WHERE final<80

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Example 3: 13-»P¸ê®Æ®wªº¾ã¦X/deleteData01.mcopyfile('score01.mdb', 'score02.mdb'); % ±N score01.mdb «þ¨©¨ì score02.mdb dsn = 'dsnScore02'; % ³]©w¸ê®Æ¨Ó·½¦WºÙ¡]«ü¨ì score02.mdb¡^ logintimeout(5); % ³]©w¹Á¸Õ³sµ²¸ê®Æ®wªº®É¶¡ conn = database(dsn, '', ''); % ³sµ²¸ê®Æ®w % ³]©w§R°£¸ê®Æ©Ò¥Îªº SQL ©R¥O sql = 'DELETE FROM score WHERE final<80'; cursor = exec(conn, sql); % ³]©w¶i¦æ¸ê®Æ¬d¸ßªº SQL ©R¥O sql = 'select studentName, final from score'; cursor = exec(conn, sql); cursor = fetch(cursor); newScore = cursor.data % Åã¥Ü§ó·s«á final Äæ¦ìªº¸ê®Æ close(cursor); % µ²§ô cursor ª«¥ó close(conn); % µ²§ô¸ê®Æ®w³sµ²newScore = '³Å«ä¬°' [80] 'Á§³ÕÁ¾' [80] '®}­Z­ì' [80] '§õ«T¤¯' [88] 'ªL«C¼z' [80]

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¦¹¥~¡ASQL ©R¥O¤]¥i¥H¥Î¨Ó²£¥Í¤@­Ó¸ê®Æªí¡A¦]¦¹¦b¤U­±³o­Ó½d¨Ò¤¤¡A§Ú­Ìª½±µ²£¥Í¤@­Ó·sªº¸ê®Æªí¡AµM«á¶ñ¶i¥h¨âµ§¸ê®Æ¡AµM«á§â¸ê®Æªíªº¸ê®ÆÅã¥Ü¦b¿Ã¹õ¤W¡A½d¨Ò¦p¤U¡C

Example 4: 13-»P¸ê®Æ®wªº¾ã¦X/createTable01.mcopyfile('score01.mdb', 'score02.mdb'); % ±N score01.mdb «þ¨©¨ì score02.mdb dsn = 'dsnScore02'; % ³]©w¸ê®Æ¨Ó·½¦WºÙ¡]«ü¨ì score02.mdb¡^ logintimeout(5); % ³]©w¹Á¸Õ³sµ²¸ê®Æ®wªº®É¶¡ conn = database(dsn, '', ''); % ³sµ²¸ê®Æ®w % ²£¥Í·s¸ê®Æªí friend sql = 'CREATE TABLE friend (fullName char(6), birthday date)'; exec(conn, sql); % ´¡¤J²Ä¤@µ§¸ê®Æ sql = 'INSERT INTO friend (fullName, birthday) VALUES (''¤ýã¶²'', ''1983/11/03'')'; exec(conn, sql); % ´¡¤J²Ä¤Gµ§¸ê®Æ sql = 'INSERT INTO friend (fullName, birthday) VALUES (''¸­¨Î¼z'', ''1982/09/22'')'; exec(conn, sql); % ¦C¥X©Ò¦³¸ê®Æ cursor = exec(conn, 'select * from friend'); cursor = fetch(cursor); friend = cursor.data % Åã¥Ü§ó·s«á friend ¸ê®Æªíªº¸ê®Æ close(cursor); % µ²§ô cursor ª«¥ó close(conn); % µ²§ô¸ê®Æ®w³sµ²friend = '¤ýã¶²' '1983-11-03 00:00:00.0' '¸­¨Î¼z' '1982-09-22 00:00:00.0'

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  1. Ū¤J score02.mdb ªº score ¸ê®Æªí
  2. ­pºâ¨C¤@­Ó¾Ç¥Íªº´Á¥½Á`¦¨ÁZ¡Aµ¥©ó§@·~¥­§¡­¼¥H 30%¡A¥[¤W´Á¤¤¦Ò¦¨ÁZ¡]midterm Äæ¦ì¡^­¼¥H 30%¡A¦A¥[¤W´Á¥½¦Ò¡]final Äæ¦ì¡^¦¨ÁZ­¼¥H 40%¡C
  3. ±N¨C¤@­Ó¾Ç¥Íªº´Á¥½¦¨ÁZ°e¨ì¸ê®Æ®wªº overall Äæ¦ì¡C
  4. ±N³Ì«á¦¨ÁZ­pºâµ²ªG¼g¦¨¤@­Óºô­¶¡A¥H«K¤½¥¬µ¹¾Ç¥Í¬Ý¡C

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Example 5: 13-»P¸ê®Æ®wªº¾ã¦X/computeScore01.mcopyfile('score01.mdb', 'score02.mdb'); % ±N score01.mdb «þ¨©¨ì score02.mdb dsn = 'dsnScore02'; % ³]©w¸ê®Æ¨Ó·½¦WºÙ¡]«ü¨ì score02.mdb¡^ logintimeout(5); % ³]©w¹Á¸Õ³sµ²¸ê®Æ®wªº®É¶¡ conn = database(dsn, '', ''); % ³sµ²¸ê®Æ®w % §ì¥X©Ò¦³ªº¸ê®Æ cursor = exec(conn, 'select * from score'); % °õ¦æ SQL ©R¥O¡A¨Ã¶Ç¦^ cursor ª«¥ó cursor = fetch(cursor); % ¸g¥Ñ cursor ª«¥ó¡A§ì¨ú¥þ³¡¸ê®Æ score = cursor.data; % ±N¸ê®Æ¶Ç¦Ü MATLAB ÅÜ¼Æ score temp = columnnames(cursor); % ¸ê®Æ®wÄæ¦ì¦WºÙ eval(['fieldNames = {', temp, '}'';']); % ±NÄæ¦ì¦WºÙ«ü©w¨ì fieldNames ÅÜ¼Æ score = cell2struct(score, fieldNames, 2); % ±N²§½è°}¦C score Âনµ²ºc°}¦C % ¹ï¨C¤@µ§¸ê®Æ¶i¦æ¹Bºâ¡A¨Ã±Nµ²ªG¦s¦^¸ê®Æ®w for i=1:length(score) homework=(score(i).homework1+score(i).homework2+score(i).homework3)/3; overallScore=homework*0.3+score(i).midterm*0.3+score(i).final*0.4; % ±N¸ê®Æ¼g¤J¸ê®Æ®w sql = ['UPDATE score SET overall=', num2str(overallScore), ' where studentID=''', score(i).studentID, '''']; exec(conn, sql); end % ¦C¥X score ¸ê®Æªí cursor = exec(conn, 'select * from score'); cursor = fetch(cursor); newScore = cursor.data; % §ó·s«áªº¸ê®Æ temp = columnnames(cursor); % ¸ê®Æ®wÄæ¦ì¦WºÙ eval(['fieldNames = {', temp, '}'';']); % ±NÄæ¦ì¦WºÙ«ü©w¨ì fieldNames ÅÜ¼Æ newScore = cell2struct(newScore, fieldNames, 2);% ±N²§½è°}¦C newScore Âনµ²ºc°}¦C close(cursor); % µ²§ô cursor ª«¥ó close(conn); % µ²§ô¸ê®Æ®w³sµ² struct2html(newScore); % Åã¥Üµ²ºc°}¦C newScore ©óÂsÄý¾¹

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