{"rsdb":{"rid":"239895","subhead":"","postdate":"0","aid":"165296","fid":"57","uid":"1","topic":"1","content":"
\n

\u4e00\u3001SQL\u7b80\u4ecb<\/p> \n

1.SQL\u5386\u53f2<\/p> \n

SQL\u5df2\u6210\u4e3a\u6807\u51c6\u7684\u5173\u7cfb\u6570\u636e\u5e93<\/a>\u8bed\u8a00\u3002<\/p> \n

2.SQL\u7279\u6027<\/p> \n

2.1SQL\u7684\u8bbe\u8ba1<\/p> \n

\u5b83\u662f\u4e00\u79cd\u6570\u636e\u5b50\u8bed\u8a00\uff0c\u5b83\u662f\u8bbe\u8ba1\u4e3a\u5173\u7cfb\u578b\u6570\u636e\u5e93\u7684\u63a5\u53e3\u3002<\/p> \n

2.2\u4e0e\u5176\u4ed6\u8bed\u8a00\u533a\u522b<\/p> \n

SQL\u6309\u96c6\u5408\u5904\u7406\u6570\u636e; \u81ea\u52a8\u5bfc\u822a;\u4e0d\u5b8c\u5168\u652f\u6301\u6d41\u7a0b\u63a7\u5236;Pl\/SQL\u662fSQL\u7684\u6269\u5c55\uff0c\u5b83\u53ef\u4ee5\u652f\u6301\u6d41\u7a0b\u63a7\u5236\u3002<\/p> \n

2.3\u529f\u80fd<\/p> \n

\u529f\u80fd\u6982\u8981\uff1a\u521b\u5efa\u3001\u66ff\u6362\u3001\u4fee\u6539\u6216\u5220\u9664\u5bf9\u8c61;\u67e5\u8be2\u6570\u636e;\u589e\u5220\u6539\u8868\u8bb0\u5f55;\u8bbf\u95ee\u63a7\u5236;\u786e\u4fdd\u6570\u636e\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u3002<\/p> \n

3.SQL\u5206\u7c7b<\/p> \n

3.1\u6570\u636e\u64cd\u4f5c\uff0cDML<\/p> \n

\u5e38\u7528\u7684\uff1aselect,insert,delete,update,merge<\/p> \n

\u4e0d\u5e38\u7528\u7684\uff1acall,explain plan,lock table,<\/p> \n

3.2\u6570\u636e\u5b9a\u4e49\uff0cDDL<\/p> \n

\u9700\u8981\u6392\u4ed6\u8bbf\u95ee\u6743\u9650\uff1a<\/p> \n

create,alter,drop,purge\uff1a\u521b\u5efa\u3001\u4fee\u6539\u3001\u5220\u9664\u548c\u6e05\u7a7a\u65b9\u6848\u5bf9\u8c61\u3002<\/p> \n

rename\uff1a\u91cd\u547d\u540d<\/p> \n

truncate\uff1a\u622a\u65ad\u8868<\/p> \n

\u65e0\u9700\u6392\u4ed6\u8bbf\u95ee\u6743\u9650\uff1a<\/p> \n

grant,revoke\uff1a\u6388\u4e88\u53ca\u6536\u56de\u6743\u9650\u3001\u89d2\u8272\u3002<\/p> \n

analyze\uff1a\u5206\u6790\u8868\u3001\u7d22\u5f15\u6216\u7c07\u7684\u4fe1\u606f\u3002<\/p> \n

comment:\u4e3a\u6570\u636e\u5e93\u5bf9\u8c61\u521b\u5efa\u6ce8\u91ca\u3002<\/p> \n

\u8fd8\u6709\uff1aanalyze\\audit\\associate\\statistics\\disassociate\\noaudit\u3002<\/p> \n

3.3\u4e8b\u52a1\u63a7\u5236<\/p> \n

\u5e38\u7528\u7684\uff1acommit;rollback;savepoint\u3002<\/p> \n

\u5176\u5b83\uff1aset transaction\\set constraint\u3002<\/p> \n

3.4\u4f1a\u8bdd\u63a7\u5236<\/p> \n

alter session \u4fee\u6539\u65e5\u671f\u683c\u5f0f\u3002<\/p> \n

\u793a\u4f8b\uff1aalter session set nls_date_format='yyyy-mm-dd'<\/p> \n

3.5\u7cfb\u7edf<\/a>\u63a7\u5236<\/p> \n

alter system<\/p> \n

3.6\u5185\u5d4c\u5f0fSQL<\/p> \n

\u5c06DML\\DDL\\\u4e8b\u52a1\u63a7\u5236SQL\u5d4c\u5165\u5230\u5f00\u53d1\u8bed\u8a00\u4e2d\u3002<\/p> \n<\/div>","orderid":"0","title":"SQL\u5386\u53f2\u3001SQL\u7279\u6027\u3001SQL\u4e0e\u5176\u4ed6\u8bed\u8a00\u533a\u522b\u3001SQL\u4e8b\u52a1\u63a7\u5236","smalltitle":"","mid":"0","fname":"\u6570\u636e\u5e93\u7f16\u7a0b","special_id":"0","bak_id":"0","info":"0","hits":"136","pages":"1","comments":"0","posttime":"2017-10-20 08:14:17","list":"1508458457","username":"admin","author":"","copyfrom":"","copyfromurl":"","titlecolor":"","fonttype":"0","titleicon":"0","picurl":"https:\/\/www.cppentry.com\/upload_files\/","ispic":"0","yz":"1","yzer":"","yztime":"0","levels":"0","levelstime":"0","keywords":"SQL<\/A> \u5386\u53f2<\/A> \u7279\u6027<\/A> \u5176\u4ed6<\/A> \u8bed\u8a00<\/A> \u533a\u522b<\/A> \u4e8b\u52a1<\/A> \u63a7\u5236<\/A>","jumpurl":"","iframeurl":"","style":"","template":"a:3:{s:4:\"head\";s:0:\"\";s:4:\"foot\";s:0:\"\";s:8:\"bencandy\";s:0:\"\";}","target":"0","ip":"113.108.110.181","lastfid":"0","money":"0","buyuser":"","passwd":"","allowdown":"","allowview":"","editer":"","edittime":"0","begintime":"0","endtime":"0","description":"SQL\u5386\u53f2\u3001SQL\u7279\u6027\u3001SQL\u4e0e\u5176\u4ed6\u8bed\u8a00\u533a\u522b\u3001SQL\u4e8b\u52a1\u63a7\u5236","lastview":"1712990101","digg_num":"0","digg_time":"0","forbidcomment":"0","ifvote":"0","heart":"","htmlname":"","city_id":"0"},"page":"1"}