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数据库介绍.rtf
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\pard\tx566\tx1133\tx1700\tx2267\tx2834\tx3401\tx3968\tx4535\tx5102\tx5669\tx6236\tx6803\pardirnatural
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NSUserDefaults writeToFile \uc0\u23545 \u35937 \u24207 \u21015 \u21270 \
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\pard\pardeftab720\sl400
\cf0 \uc0\u25968 \u25454 \u24211 \u30340 \u31867 \u22411 :\
\uc0\u20851 \u31995 \u22411 \u25968 \u25454 \u24211 (\u20027 \u27969 )\'97>>\u23545 \u35937 \u22411 \u25968 \u25454 \u24211 \'97>>\u25991 \u26723 \u22411 \u25968 \u25454 \u24211 (Lotus Notes)\'a0\
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\uc0\u20027 \u27969 \u20851 \u31995 \u22411 \u25968 \u25454 \u24211 \
PC\uc0\u31471 :\cf2 Oracle\uc0\u12289 DB2\u12289 Microsoft SQL Server\u12289 Microsoft Access\u12289 MySQL\cf0 \'a0\
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\cf2 Oracle\uc0\u65306 \cf0 \uc0\u36328 \u24179 \u21488 \cf2 \uc0\u65292 \u22810 \u23618 \u27425 \u35745 \u31639 \u65292 \u25903 \u25345 \u22810 \u37325 \u24037 \u19994 \u26631 \u20934 \u65292 \u22788 \u29702 \u28023 \u37327 \u25968 \u25454 \cf0 \
DB2:IBM\uc0\u20844 \u21496 \
\cf2 Microsoft SQL Server\uc0\u65306 \u21482 \u33021 \u36816 \u34892 \u22312 Windows\u24179 \u21488 \u65292 \u30001 \u20110 \u20854 \u26131 \u25805 \u20316 \u24615 \u21450 \u20854 \u21451 \u22909 \u30340 \u25805 \u20316 \u30028 \u38754 \u65292 \u28145 \u21463 \u24191 \u22823 \u29992 \u25143 \u30340 \u21916 \u29233 \
MySQL\uc0\u65306 \u24320 \u28304 \u30340 \u12289 \cf0 \uc0\u19968 \u20010 \u24555 \u36895 \u30340 \u12289 \u21487 \u38752 \u30340 \u21644 \u26131 \u20110 \u20351 \u29992 \u30340 \u25968 \u25454 \u24211 \u26381 \u21153 \u22120 \cf2 \
\cf0 \
\uc0\u23458 \u25143 \u31471 :SQLite\
\pard\tx566\tx1133\tx1700\tx2267\tx2834\tx3401\tx3968\tx4535\tx5102\tx5669\tx6236\tx6803\pardirnatural
\cf0 \
\pard\pardeftab720\sl400
\cf0 SQLite3\uc0\u26159 \u19968 \u27454 \u24320 \u28304 \u30340 \u31227 \u21160 \u31471 \u20851 \u31995 \u22411 \u25968 \u25454 \u24211 ,\u21487 \u31227 \u26893 \u24615 \u22909 \u12289 \u26131 \u20351 \u29992 \u12289 \u20869 \u23384 \u24320 \u38144 \u23567 \'a0\
\pard\tx566\tx1133\tx1700\tx2267\tx2834\tx3401\tx3968\tx4535\tx5102\tx5669\tx6236\tx6803\pardirnatural
\cf0 \
\pard\pardeftab720\sl400
\cf0 SQLite3\uc0\u22522 \u26412 \u27010 \u24565 \
\uc0\u25968 \u25454 \u24211 \u30340 \u23384 \u20648 \u32467 \u26500 \u36319 excel\u31867 \u20284 \cf3 - \uc0\u34920 \u65288 table\u65289 \
\uc0\u35760 \u24405 (row)\cf0 \uc0\u65292 \u27599 \u34892 \u37117 \u26377 \u24456 \u22810 \u20010 \u23383 \u27573 \cf3 - \uc0\u23383 \u27573 \u65288 column\u65289 \cf0 \
\
\
SQL(structured query language):\uc0\u32467 \u26500 \u21270 \u26597 \u35810 \u35821 \u35328 ,\u19968 \u31181 \u23545 \u20851 \u31995 \u25968 \u25454 \u24211 \u20013 \u30340 \u25968 \u25454 \u36827 \u34892 \u23450 \u20041 \u21644 \u25805 \u20316 \u30340 \u35821 \u27861 \
-\'a0\uc0\u35201 \u25805 \u20316 \u21644 \u35775 \u38382 \u25968 \u25454 \u24211 \u20013 \u23384 \u20648 \u30340 \u25968 \u25454 ,\u24517 \u39035 \u32534 \u20889 SQL\u35821 \u21477 \
-\'a0SQL\uc0\u35821 \u21477 \u26159 \u19981 \u21306 \u20998 \u22823 \u23567 \u20889 \u30340 (\u21363 \u22823 \u23567 \u20889 \u19968 \u26679 )\'a0\
-\'a0SQL\uc0\u35821 \u21477 \u37117 \u20197 \u20998 \u21495 \u65307 \u32467 \u23614 \
\
SQL\uc0\u35821 \u21477 \
\'b7\'a0\uc0\u25968 \u25454 \u23450 \u20041 \u35821 \u35328 (DDL:Data Definition Language)\
\uc0\u20854 \u35821 \u21477 \u21253 \u25324 \u21160 \u35789 \cf3 CREATE\cf0 \uc0\u21644 \cf3 DROP\cf0 \'a0\
\uc0\u22312 \u25968 \u25454 \u24211 \u20013 \u21019 \u24314 \u26032 \u34920 \u25110 \u21024 \u38500 \u34920 (CREAT TABLE\'a0\u25110 DROP TABLE)\'a0\
\
\'b7\'a0\uc0\u25968 \u25454 \u25805 \u20316 \u35821 \u35328 (DML:Data Manipulation Language)\
\uc0\u20854 \u35821 \u21477 \u21253 \u25324 \cf3 INSERT\cf0 ,\cf3 UPDATE\cf0 \uc0\u21644 \cf3 DELETE\cf0 ,\uc0\u23427 \u20204 \u20998 \u21035 \u29992 \u20110 \u28155 \u21152 ,\u20462 \u25913 \u21644 \u21024 \u38500 \u34920 \u20013 \u30340 \u34892 \'a0\u20063 \u31216 \u20026 \u21160 \u20316 \u26597 \u35810 \u35821 \u35328 \'a0\
\
\'b7\'a0\uc0\u25968 \u25454 \u26597 \u35810 \u35821 \u35328 (DQL:Data Query Language)\
\uc0\u20063 \u31216 \u20026 \'93\u25968 \u25454 \u26816 \u32034 \u35821 \u21477 \'94,\u29992 \u20197 \u20174 \u34920 \u20013 \u33719 \u24471 \u25968 \u25454 \'a0\
\uc0\u20445 \u30041 \u23383 \cf3 SELECT\cf0 \uc0\u26159 DQL(\u20063 \u26159 \u25152 \u26377 SQL)\u29992 \u24471 \u26368 \u22810 \u30340 \u21160 \u35789 ,\u20854 \u20182 DQL\u24120 \u29992 \u30340 \u20445 \u30041 \u23383 \u26377 \cf3 WHERE\cf0 ,\cf3 ORDER\cf0 \cf3 BY\
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}