{"id":274980,"date":"2021-01-12T18:19:41","date_gmt":"2021-01-12T10:19:41","guid":{"rendered":"http:\/\/4563.org\/?p=274980"},"modified":"2021-01-12T18:19:41","modified_gmt":"2021-01-12T10:19:41","slug":"%e9%97%ae%e4%b8%80%e4%b8%8b%e5%90%84%e4%bd%8d%e5%89%8d%e8%be%88%e5%85%b3%e4%ba%8e-mysql-%e4%b8%ad%e7%9a%84%e8%a7%a6%e5%8f%91%e5%99%a8","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=274980","title":{"rendered":"\u95ee\u4e00\u4e0b\u5404\u4f4d\u524d\u8f88\u5173\u4e8e MySQL \u4e2d\u7684\u89e6\u53d1\u5668"},"content":{"rendered":"<div>\n<div>\n<div>\n<h1>                  \u95ee\u4e00\u4e0b\u5404\u4f4d\u524d\u8f88\u5173\u4e8e MySQL \u4e2d\u7684\u89e6\u53d1\u5668               <\/h1>\n<p> <\/p>\n<div>\n<div> <span>\u8cc7\u6df1\u5927\u4f6c : Yukee798 <\/span>  <span><i><\/i> 0<\/span> <\/div>\n<div> <\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<div isfirst=\"1\"> <\/p>\n<ul>\n<li>\u9700\u6c42\uff1a\u4e3a\u4f9b\u5e94\u5546\u8868\u5efa\u7acb\u89e6\u53d1\u5668\uff0c\u7981\u6b62\u5220\u9664\u76ee\u524d\u6709\u8ba2\u8d2d\u5355\u7684\u4f9b\u5e94\u5546<\/li>\n<li>\u51fa\u73b0\u7684\u95ee\u9898\uff1a\u4e0b\u9762\u7684\u4ee3\u7801\u4f1a\u62a5\u9519<\/li>\n<\/ul>\n<pre><code>delimiter $ create trigger ban_delete after delete on `\u4f9b\u5e94\u5546` for each row begin  if old.`\u4f9b\u5e94\u5546\u53f7` in (select `\u4f9b\u5e94\u5546\u53f7` from `\u8ba2\u8d2d\u5355` where `\u4f9b\u5e94\u5546\u53f7` is not null)   then rollback;  end if; end $ <\/code><\/pre>\n<p>\u8bf7\u95ee\u4e00\u4e0b\u6709\u4ec0\u4e48\u5176\u4ed6\u601d\u8def\u80fd\u5b9e\u73b0\u4e0a\u9762\u7684\u9700\u6c42\u5417\uff0c\u76ee\u524d\u6b63\u5728\u5b66\u4e60 MySQL \u7684\u4e00\u4e9b\u77e5\u8bc6\uff0c\u8fd9\u662f\u8001\u5e08\u5e03\u7f6e\u7684\u4e00\u9053\u9898\uff0c\u627e\u4e86\u5f88\u591a\u8d44\u6599\u8fd8\u662f\u6ca1\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u3002<\/p>\n<\/p><\/div>\n<div> <b>\u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (<span>2<\/span>)        <\/div>\n<div> <\/div>\n<\/p><\/div>\n<\/p><\/div>\n<ul>\n<li data-pid=\"4912098\" data-uid=\"2\">\n<div>\n<div>\n<div> <span>\u8cc7\u6df1\u5927\u4f6c : liprais <\/span>  <\/div>\n<div> <i title=\"\u5f15\u7528\"><\/i>  <span>          <\/span> <\/div>\n<\/p><\/div>\n<div>                                                             \u5916\u952e\u5b8c\u4e8b                                                            <\/div>\n<\/p><\/div>\n<\/li>\n<li data-pid=\"4912099\" data-uid=\"2\">\n<div>\n<div>\n<div> <span>\u8cc7\u6df1\u5927\u4f6c : c6h6benzene <\/span>  <\/div>\n<div> <i title=\"\u5f15\u7528\"><\/i>  <span>          <\/span> <\/div>\n<\/p><\/div>\n<div>                                                             \u62a5\u7684\u5565\u9519\u2026\uff1f\u6211\u8089\u773c\u770b\u8d77\u6765\u4f60\u7684 old \u6ca1\u6709\u58f0\u660e\u522b\u540d\uff0c\u627e\u4e0d\u5230\u8868\u5427\u2026\uff1f                                                            <\/div>\n<\/p><\/div>\n<\/li>\n<li>\n","protected":false},"excerpt":{"rendered":"<p>\u95ee\u4e00\u4e0b\u5404\u4f4d\u524d\u8f88\u5173\u4e8e MySQL \u4e2d&hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[],"tags":[],"_links":{"self":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/274980"}],"collection":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=274980"}],"version-history":[{"count":0,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/274980\/revisions"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=274980"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=274980"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=274980"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}