Mysql浠庢枃浠跺鍏ユ暟鎹彲浠ヤ嬌鐢ㄤ互涓嬫柟娉曪細
1銆佸厛鍒涘緩涓寮犺〃
濡傦細
CREATE TABLE i0812 (
Col001 varchar (255) NULL,
Col002 varchar (255) NULL,
Col003 varchar (255) NULL,
Col004 varchar (255) NULL,
Col005 varchar (255) NULL,
Col006 varchar (255) NULL,
Col007 varchar (255) NULL,
Col008 varchar (255) NULL,
Col009 varchar (255) NULL
)
2銆佷粠鏂囨湰瀵煎叆鏁版嵁
濡傦細
load data local infile "e:/mysql/IIP_M_SZ.200812" into table i0812 FIELDs TERMINATED BY '|' LINES TERMINATED BY '\r\n';
3銆佽繘琛岃綆楀茍瀵煎嚭緇撴灉鑷蟲枃鏈枃浠?/strong>
濡傦細
select col002,col005,col004,col008 into outfile 'e:/mysql/i0812.txt' fields terminated by '|' lines terminated by '\r\n' from i0812 where col003 in (select col001 from qdbm) order by col005;
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涓涓瘮杈冪鐨勫姙娉曪紝鏄厛鐢╯elect鏌ユ壘琛ㄤ腑鏄惁宸茬粡瀛樺湪璇ユ暟鎹紝鐒跺悗鍐嶆牴鎹繑鍥炵殑緇撴灉鍐沖畾鏄惁insert銆傝繖鏍峰仛涓鏉ユ晥鐜囦細闄嶄綆錛屼簩鏉ワ紝濡傛灉鍦╯elect鍜宨nsert鎵ц鏈熼棿錛屽張鏈夊叾浠栫敤鎴瘋繘琛屼簡insert鎿嶄綔錛屾彃鍏ヤ簡涓鏉＄浉鍚岀殑鏁版嵁錛屼粛鐒朵細鍑洪敊銆?br />
姝ｇ‘鐨勮В鍐蟲柟娉曟槸錛?br /> 棣栧厛錛屽湪鍒涘緩琛ㄦ椂錛屽皢涓嶉渶瑕侀噸澶嶇殑瀛楁璁劇疆涓簎nique錛岀劧鍚庡湪鎻掑叆鏃訛紝浣跨敤insert ignore璇彞銆?br />
渚嬪錛氾紙鏁版嵁搴撶敤鐨勬槸mysql5錛?br /> 鍒涘緩涓寮犺〃鐢ㄦ潵瀛樺偍鐢ㄦ埛錛?br /> create table user_info
(
uid mediumint(10) unsigned NOT NULL auto_increment primary key,
last_name char(20) not null,
first_name char(20) not null,
unique ( last_name, first_name)
);
鎻掑叆鏁版嵁錛?br /> insert ignore into user_info (last_name,first_name) values ('x','y');
//榪欐牱涓鏉ワ紝濡傛灉琛ㄤ腑宸茬粡瀛樺湪last_name='x'涓攆irst_name='y'鐨勬暟鎹紝灝變笉浼氭彃鍏ワ紝濡傛灉娌℃湁灝變細鎻掑叆涓鏉℃柊鏁版嵁銆?br />
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