{"id":297,"date":"2009-09-21T17:15:28","date_gmt":"2009-09-21T17:15:28","guid":{"rendered":""},"modified":"2011-11-18T17:05:52","modified_gmt":"2011-11-18T09:05:52","slug":"297","status":"publish","type":"post","link":"http:\/\/zerobox.org\/notes\/297.html","title":{"rendered":"sql\u8bed\u8a00\u7684\u57fa\u672c\u7528\u6cd5"},"content":{"rendered":"<p><span style=\"font-size: x-small;\">\u6807\u51c6\u8bed\u8a00sql\u5165\u95e8<br \/>\n\u4eca\u5929\u5c31\u7ed9\u5927\u5bb6\u8bb2\u4e00\u4e0bsql\u8bed\u8a00\u7684\u57fa\u672c\u7528\u6cd5\uff1a<br \/>\n\u8fd9\u91cc\u6211\u5148\u5b9a\u4e49\u4e00\u5f20\u6570\u636e\u8868<\/span><\/p>\n<p>\u5b66\u751f\u8868\uff1astudent(sno,sname,ssex)<br \/>\n\u8fd9\u91ccstudent\u4e3a\u8868\u540d\uff0c\u5b66\u53f7\uff08sno),\u59d3\u540d\uff08sname),\u6027\u522b\uff08ssex)\u4e3a\u8868\u7684\u5c5e\u6027\u4e5f\u53ef\u79f0\u4e3a\u5217\u540d<br \/>\n1.select \u52a8\u8bcd\uff1a<br \/>\n\u8fd9\u4eba\u52a8\u8bcd\u4e3b\u8981\u7528\u4e8e\u6570\u636e\u5e93\u7684\u67e5\u8be2<br \/>\n\u67e5\u8be2\u5b66\u751f\u7684\u5b66\u53f7\uff0c\u59d3\u540d\u8bed\u53e5\u4e3a\uff1a<br \/>\nselect sno,sname<br \/>\nfrom student<\/p>\n<p>\u67e5\u8be2\u5b66\u751f\u5168\u90e8\u4fe1\u606f\u53ef\u5199\u4e3a<br \/>\nselect *<br \/>\nfrom student<br \/>\n\u5176\u4e2d*\u53ef\u7406\u89e3\u4e3a\u6570\u636e\u8868\u4e2d\u7684\u6bcf\u4e00\u5217<\/p>\n<p>\u8fd9\u4e2a\u52a8\u8bcd\u975e\u5e38\u91cd\u8981\uff0c\u7528\u6cd5\u6bd4\u8f83\u591a\uff0c\u5341\u5206\u91cd\u8981\u3002<\/p>\n<p>2.create\uff1a<br \/>\n\u8fd9\u4e2a\u52a8\u8bcd\u53ef\u7528\u6765\u521b\u5efa\u6570\u636e\u8868\u548c\u6570\u636e\u5e93,\u89c6\u56fe\uff0c\u7d22\u5f15<br \/>\n\u8fd9\u91cc\u6211\u4eec\u521b\u5efa\u4e00\u4e2a\u4e0a\u9762\u7684\u5b66\u751f\u8868\uff1a<br \/>\ncreate table student<br \/>\n(sno char(5) not null unique,<br \/>\nsname char(20) unique,<br \/>\nssex char(1)<br \/>\n)<br \/>\n\u8fd9\u91ccchar\u662f\u5b9a\u4e49\u4e3a\u5b57\u7b26\u578b\uff0csno\u4e3a5\u4e2a\u5b57\u7b26\uff0c\u800cnot null unique \u4e3a\u5217\u7684\u5b8c\u6574\u6027\u7ea6\u675f\u6761\u4ef6\uff0c\u610f\u601d\u662fsno\u7684\u53d6\u503c\u4e3a\u4e00\uff0c\u4e0d\u5141\u8bb8\u4e3a\u7a7a\u3002<br \/>\n\u5c31\u662f\u8fd9\u4e2a\u8868\u7684\u4e3b\u952e\u3002<br \/>\ncreate database databasename<br \/>\n\u662f\u521b\u5efa\u4e00\u4e2a\u6570\u636e\u5e93<\/p>\n<p>3.drop<br \/>\n\u7528drop table \u8868\u540d<br \/>\n\u53ef\u4ee5\u7528\u6765\u5220\u9664\u4e00\u4e2a\u57fa\u672c\u8868<\/p>\n<p>4.alter<br \/>\n\u7528\u6765\u4fee\u6539\u57fa\u672c\u8868\u7684\u7ed3\u6784\uff1a<br \/>\n\u5728\u539f\u6765\u7684student\u8868\u4e2d\u65b0\u589e\u4e00\u5217scome\u5165\u5b66\u65f6\u95f4\u7684\u5217\uff0c<br \/>\nalter table student add scome date<br \/>\n\u5b83\u7684\u6570\u636e\u7c7b\u578b\u4e3adate,add\u7684\u4f4d\u7f6e\u53ef\u7528,modify,drop\u4ee3\u5165\u5b9e\u73b0\u4fee\u6539\u548c\u5220\u9664\u529f\u80fd<\/p>\n<p>5.insert<br \/>\n\u5728\u8868\u4e2d\u63d2\u548c\u5143\u7ec4\uff0c\u5373\u884c<br \/>\n\u5728student\u4e2d\u63d2\u5165\u4e00\u884c<br \/>\ninsert into student values(1,pinkeyes,m)<br \/>\n\u52a0\u5165\u4e86\u4e00\u4e2a\u5b66\u53f7\u4e3a1\uff0c\u540d\u4e3apinkeyes,\u6027\u522b\u4e3a\u7537\u7684\u7528\u6237<\/p>\n<p>6.update<br \/>\n\u7528\u4e8e\u6570\u636e\u66f4\u65b0<br \/>\nupdate student<br \/>\nset sno=2<br \/>\nwhere sname=&lt;|&gt;pinkeyes&lt;|&gt;<br \/>\n\u628a\u7528\u6237\u540d\u4e3apinkeyes\u7684\u5b66\u53f7\u6539\u4e3a2<\/p>\n<p>7.delete<br \/>\n\u8fd9\u4eba\u4e0d\u7528\u8bf4\u4e86\u5427<\/p>\n<p>8.grant<br \/>\n\u7528\u6237\u6388\u6743\uff1a<br \/>\n\u628a\u67e5\u8be2student\u8868\u7684\u6743\u9650\u7ed9\u7528\u6237u<br \/>\ngrant select<br \/>\non table student<br \/>\nto u<\/p>\n<p>9.revoke<br \/>\n\u6536\u56de\u6743\u9650<br \/>\nrevoke<br \/>\nselect<br \/>\non table student<br \/>\nfrom u<\/p>\n<p>sql\u6ce8\u5165\u662f\u6bd4\u8f83\u6d41\u884c\u7684\u5165\u4fb5\u65b9\u6cd5\uff0c\u5982\u679c\u4f60\u61c2\u70b9sql\u8bed\u53e5\u7684\u8bdd\uff0c\u5c31\u66f4\u5bb9\u6613\u7406\u89e3\u5b83\u7684\u539f\u7406\uff0c\u4e0d\u8981\u53ea\u4f1a\u7528\u522b\u4eba\u63d0\u4f9b\u7684\u4e00\u7cfb\u5217\u8bed\u53e5\u53bb\u5165\u4fb5\u67d0\u4e00\u4e2a\u8bba\u575b\u3002\u4f60<\/p>\n<p>\u53ef\u4ee5\u81ea\u5df1\u7528\u81ea\u5df1\u7684\u8bed\u53e5\u6ce8\u5165\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6807\u51c6\u8bed\u8a00sql\u5165\u95e8 \u4eca\u5929\u5c31\u7ed9\u5927\u5bb6\u8bb2\u4e00\u4e0bsql\u8bed\u8a00\u7684\u57fa\u672c\u7528\u6cd5\uff1a \u8fd9\u91cc\u6211\u5148\u5b9a\u4e49\u4e00\u5f20\u6570 &hellip;<\/p>\n<p class=\"read-more\"><a href=\"http:\/\/zerobox.org\/notes\/297.html\">\u7ee7\u7eed\u9605\u8bfb &raquo;<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[137],"class_list":["post-297","post","type-post","status-publish","format-standard","hentry","tag-sql"],"views":793,"_links":{"self":[{"href":"http:\/\/zerobox.org\/notes\/wp-json\/wp\/v2\/posts\/297","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/zerobox.org\/notes\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/zerobox.org\/notes\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/zerobox.org\/notes\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/zerobox.org\/notes\/wp-json\/wp\/v2\/comments?post=297"}],"version-history":[{"count":0,"href":"http:\/\/zerobox.org\/notes\/wp-json\/wp\/v2\/posts\/297\/revisions"}],"wp:attachment":[{"href":"http:\/\/zerobox.org\/notes\/wp-json\/wp\/v2\/media?parent=297"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/zerobox.org\/notes\/wp-json\/wp\/v2\/categories?post=297"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/zerobox.org\/notes\/wp-json\/wp\/v2\/tags?post=297"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}