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\u5728\u521a\u5f00\u59cb\u63a5\u89e6\u6570\u636e\u7684\u65f6\u5019\u4f1a\u4e0d\u77e5\u9053\u4ece\u54ea\u8fb9\u5165\u624b\uff0c\u4f46\u5176\u5b9e\u5728\u8fd9\u65b9\u9762\u6211\u4eec\u8981\u7528\u7684\u4e1c\u897f\u5f88\u5c11\uff0c\u53ea\u8981\u77e5\u9053\u51e0\u4e2a\u57fa\u672c\u7684\u64cd\u4f5c\u8bed\u53e5\u5c31\u53ef\u4ee5\u4e86\uff0c\u4e0b\u9762\u6211\u7b80\u5355\u4ecb\u7ecd\u4e00\u4e0b\u57fa\u672c\u7684\u6570\u636e\u5e93<\/a>\u64cd\u4f5c\u8bed\u53e5\u548cJDBC\u7f16\u7a0b<\/a>\u6b65\u9aa4\uff1a<\/p> \n \u8fde\u63a5\u547d\u4ee4\uff1amysql<\/a> -h[\u4e3b\u673a\u5730\u5740] -u[\u7528\u6237\u540d] -p[\u7528\u6237\u5bc6\u7801]<\/p> \n \u521b\u5efa\u6570\u636e\u5e93\uff1acreate database [\u5e93\u540d]<\/p> \n \u663e\u793a\u6240\u6709\u6570\u636e\u5e93: show databases;<\/p> \n \u6253\u5f00\u6570\u636e\u5e93:use [\u5e93\u540d]<\/p> \n \u5f53\u524d\u9009\u62e9\u7684\u5e93\u72b6\u6001:SELECT DATABASE();<\/p> \n \u521b\u5efa\u6570\u636e\u8868:CREATE TABLE [\u8868\u540d]([\u5b57\u6bb5\u540d] [\u5b57\u6bb5\u7c7b\u578b]([\u5b57\u6bb5\u8981\u6c42]) [\u5b57\u6bb5\u53c2\u6570], ......);<\/p> \n \u663e\u793a\u6570\u636e\u8868\u5b57\u6bb5:describe \u8868\u540d;<\/p> \n \u5f53\u524d\u5e93\u6570\u636e\u8868\u7ed3\u6784:show tables;<\/p> \n DDL (\u6570\u636e\u5e93\u5bf9\u8c61)\u8bed\u53e5\u57fa\u672c\u64cd\u4f5c<\/p> \n \u5efa\u8868\u8bed\u53e5<\/p> \n create table [\u6a21\u5f0f\u540d.]\u8868\u540d<\/p> \n ()\u62ec\u53f7\u7528\u4e8e\u540c\u65f6\u589e\u52a0\u591a\u4e2a\u8868<\/p> \n \u6839\u636e\u5df2\u6709\u7684\u8868\u521b\u5efa\u65b0\u8868\uff1a<\/p> \n A\uff1acreate table tab_new like tab_old (\u4f7f\u7528\u65e7\u8868\u521b\u5efa\u65b0\u8868)<\/p> \n B\uff1acreate table tab_new as select col1,col2\u2026 from tab_old definition only<\/p> \n \u4fee\u6539\u8868\u8bed\u53e5<\/p> \n \u5148\u9009\u5b9a\u4e00\u4e2a\u8868<\/p> \n alter table \u8868\u540d<\/p> \n (<\/p> \n xxx yyy .lll<\/p> \n )<\/p> \n 1.\u589e\u52a0\u5217\u5b9a\u4e49<\/p> \n add \u5217\u540d \u5217\u7c7b\u578b<\/p> \n 2.\u4fee\u6539\u5217\u5b9a\u4e49<\/p> \n modify column_name datatype [default exper] [first|after col_name]<\/p> \n modify \u8981\u4fee\u6539\u7684\u5217\u5217\u540d \u65b0\u5217\u7c7b\u578b<\/p> \n 3.\u5220\u9664\u5217<\/p> \n drop colum_name<\/p> \n \u76f4\u63a5drop \u52a0\u5217\u540d<\/p> \n \u5220\u9664\u8868<\/p> \n drop table \u8868\u540d \u5220\u9664\u8868\u540d\u540e\u76f8\u5e94\u7684\u8868\u7ed3\u6784\u3001\u6570\u636e\u3001\u8868\u76f8\u5173\u7684\u7d22\u5f15\u3001\u7ea6\u675f\u4e5f\u88ab\u5220\u9664 \u8868\u5bf9\u8c61\u4e0d\u518d\u5b58\u5728<\/p> \n 4.\u91cd\u547d\u540d<\/p> \n rename to \u65b0\u8868\u540d<\/p> \n \u547d\u540d\u65b0\u5217\u540d<\/p> \n change old_column_name new_column_name type [default exper] [first |after col_name]<\/p> \n change \u65e7\u5217\u540d \u65b0\u5217\u540d \u5217\u5b9a\u4e49<\/p> \n truncate<\/p> \n \u622a\u65ad \u4e00\u6b21\u6027\u5220\u9664\u6574\u4e2a\u8868\u7684\u6570\u636e<\/p> \n truncate \u8868\u540d<\/p> \n \u589e\u5220\u6539\u67e5\uff1a<\/p> \n 1. \u589e:<\/p> \n insert into \u8868\u540d values(0,'\u6d4b\u8bd5');<\/p> \n \u6ce8\uff1a\u5982\u4e0a\u8bed\u53e5\uff0c\u8868\u7ed3\u6784\u4e2d\u6709\u81ea\u52a8\u589e\u957f\u7684\u5217\uff0c\u4e5f\u5fc5\u987b\u4e3a\u5176\u6307\u5b9a\u4e00\u4e2a\u503c\uff0c\u901a\u5e38\u4e3a0<\/p> \n insert into \u8868\u540d(id,name) values(0,'\u5f20\u4e09')--\u540c\u4e0a<\/p> \n 2.\u5220\u6570\u636e:<\/p> \n delete from \u8868\u540d;<\/p> \n delete from \u8868\u540d where id=1;<\/p> \n \u5220\u9664\u7ed3\u6784\uff1a<\/p> \n \u5220\u6570\u636e\u5e93\uff1adrop database \u6570\u636e\u5e93\u540d;<\/p> \n \u5220\u9664\u8868\uff1adrop table \u8868\u540d;<\/p> \n \u5220\u9664\u8868\u4e2d\u7684\u5217:alter table \u8868\u540d drop column \u5217\u540d;<\/p> \n 3. \u6539:<\/p> \n \u4fee\u6539\u6240\u6709\uff1aupdata \u8868\u540d set \u5217\u540d='\u65b0\u7684\u503c\uff0c\u975e\u6570\u5b57\u52a0\u5355\u5f15\u53f7' ;<\/p> \n \u5e26\u6761\u4ef6\u7684\u4fee\u6539\uff1aupdata \u8868\u540d set \u5217\u540d='\u65b0\u7684\u503c\uff0c\u975e\u6570\u5b57\u52a0\u5355\u5f15\u53f7' where id=6;<\/p> \n 4.\u67e5:<\/p> \n \u67e5\u8be2\u6240\u6709\u7684\u6570\u636e\uff1aselect *from \u8868\u540d;<\/p> \n \u5e26\u6761\u4ef6\u7684\u67e5\u8be2\uff1a<\/p> \n select *from \u8868\u540d where \u5217\u540d=\u6761\u4ef6\u503c;<\/p> \n Select * from \u8868\u540d where \u5217\u540d not like(like) '\u5b57\u7b26\u503c'<\/p> \n \u5206\u9875\u67e5\u8be2\uff1aselect *from \u8868\u540d limit \u6bcf\u9875\u6570\u91cf offset \u504f\u79fb\u91cf;<\/p> \n \u4e0b\u9762\u4ecb\u7ecd\u5982\u4f55\u5728java<\/a>\u8bed\u53e5\u6765\u6267\u884c\u6570\u636e\u5e93\u64cd\u4f5c\uff0c\u4e5f\u5c31\u662f\u6240\u8c13\u7684JDBC\u7f16\u7a0b\uff0c\u57fa\u672c\u6b65\u9aa4\u4e3a\uff1a<\/p> \n 1.\u52a0\u8f7d\u6570\u636e\u5e93\u9a71\u52a8<\/p> \n Class.forName (driverClass)<\/p> \n \u52a0\u8f7dMySQL\u9a71\u52a8<\/p> \n Class.foename("com.mysql.jdbc.Driver")<\/p> \n 2.\u83b7\u53d6\u6570\u636e\u5e93\u8fde\u63a5<\/p> \n DriverManager.getConnection(String url,String user , String pass);<\/p> \n \u6570\u636e\u53efurl \u767b\u5f55\u6570\u636e\u5e93\u7528\u6237\u540d\u548c\u5bc6\u7801<\/p> \n 3.\u901a\u8fc7connection\u5bf9\u8c61\u521b\u5efaStatement\u5bf9\u8c61<\/p> \n createStatement() : \u521b\u5efa\u57fa\u672c\u7684Statement\u5bf9\u8c61<\/p> \n prepareStatement(String sql)\uff1a\u6839\u636e\u4f20\u5165\u7684SQL\u8bed\u53e5\u521b\u5efa\u9884\u7f16\u8bd1\u7684Statement\u5bf9\u8c61<\/p> \n prepareCall(String sql) \uff1a \u6839\u636e\u4f20\u5165\u7684\u7684SQL\u8bed\u53e5\u521b\u5efaCallableStatement\u5bf9\u8c61<\/p> \n 4.\u4f7f\u7528Statement\u6267\u884cSQL\u8bed\u53e5<\/p> \n excute()\uff1a\u53ef\u4ee5\u6267\u884c\u4efb\u4f55SQL\u8bed\u53e5 \u4f46\u6bd4\u8f83\u9ebb\u70e6<\/p> \n excuteUpdate()\uff1a\u4e3b\u8981\u7528\u4e8e\u6267\u884cDML\u548cDDL\u8bed\u53e5 \u6267\u884cDML\u8bed\u53e5\u8fd4\u56de\u53d7SQL\u8bed\u53e5\u5f71\u54cd\u7684 \u884c\u6570\uff0c\u6267\u884cDDL\u8bed\u53e5\u7684\u8fd4\u56de0<\/p> \n excuteQuery()\uff1a\u53ea\u80fd\u6267\u884c\u67e5\u8be2\u8bed\u53e5<\/p> \n 5.\u9020\u4f5c\u7ed3\u679c\u96c6<\/p> \n next()\u3001previous()\u3001 first()\u3001 last() \u3001 beforeFirst()\u3001 afterLast() \u3001 absolute()\u79fb\u52a8\u8bb0\u5f55\u6307\u9488\u7684\u65b9\u6cd5<\/p> \n getXxx()\u83b7\u53d6\u8bb0\u5f55\u6307\u9488\u6307\u5411\u884c\u3001\u7279\u5b9a\u5217\u7684\u503c<\/p> \n 6.\u56de\u6536\u6570\u636e\u53ef\u8d44\u6e90<\/p> \n \u5173\u95edResultSet Statement \u548cConnection\u7b49\u8d44\u6e90<\/p> \n<\/div>","orderid":"0","title":"\u57fa\u672c\u7684\u6570\u636e\u5e93\u64cd\u4f5c\u8bed\u53e5\u548cJDBC\u7f16\u7a0b\u6b65\u9aa4","smalltitle":"","mid":"0","fname":"\u6570\u636e\u5e93\u7f16\u7a0b","special_id":"0","bak_id":"0","info":"0","hits":"232","pages":"1","comments":"0","posttime":"2017-10-20 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