{"id":155624,"date":"2020-09-06T14:45:27","date_gmt":"2020-09-06T06:45:27","guid":{"rendered":"http:\/\/4563.org\/?p=155624"},"modified":"2020-09-06T14:45:27","modified_gmt":"2020-09-06T06:45:27","slug":"sql-%e4%b8%ad%e6%89%b9%e9%87%8f%e6%9b%b4%e6%96%b0%e5%ba%94%e8%af%a5%e6%80%8e%e4%b9%88%e5%86%99","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=155624","title":{"rendered":"SQL \u4e2d\u6279\u91cf\u66f4\u65b0\u5e94\u8be5\u600e\u4e48\u5199?"},"content":{"rendered":"
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SQL \u4e2d\u6279\u91cf\u66f4\u65b0\u5e94\u8be5\u600e\u4e48\u5199? <\/h1>\n

<\/p>\n

\n
\u8cc7\u6df1\u5927\u4f6c : mebtte <\/span> <\/i> 4<\/span> <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n
<\/p>\n

\u6bd4\u5982\u6211\u6709\u4e00\u4e2a\u8868 { id: int, order: int } , \u73b0\u5728\u60f3\u6279\u91cf\u66f4\u65b0, \u6bd4\u5982 id=1 set order=2, id=2 set order=3 , id \u548c order \u5bf9\u5e94\u7684\u503c\u662f\u5916\u9762\u4f20\u8fdb\u6765\u7684, \u4e00\u6761 update \u8bed\u53e5\u80fd\u505a\u5230\u5417?<\/p>\n<\/p><\/div>\n

\u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (14<\/span>) <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n
    \n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : ss098 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u4e0d\u80fd\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : codingadog <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u5c31\u4fe9\u5b57\u6bb5\uff1f\u4e00\u5bf9\u591a\u591a\u5bf9\u4e00\u591a\u5bf9\u591a\u6839\u636e\u60c5\u51b5\u52a0\u552f\u4e00\u7d22\u5f15\u7136\u540e replace into <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : mccoymir <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    case when … <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : a3613051 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u8981\u4e48 case when \u8981\u4e48 jdbcurl \u52a0\u4e0a allowMultiQueries=true \u4e00\u6b21\u53d1\u591a\u6761\u3002replace into \u592a\u66b4\u529b\u4e86 \u4e3b\u952e\u5168\u53d8 \u5173\u8054\u8868\u4e0d\u662f\u7206\u70b8\u4e86\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : fox0001 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u6570\u91cf\u5728\u53ef\u63a5\u53d7\u8303\u56f4\u7684\u8bdd\uff08 30 \u4e07\u4ee5\u5185\u5427\uff09\uff0c\u53ef\u4ee5\u628a\u5bf9\u5e94\u5173\u7cfb\u5bfc\u51fa\u5230 CVS \u6216\u8005 excel \u6587\u4ef6\uff0c\u7136\u540e\u5199\u4e2a\u516c\u5f0f\u751f\u6210\u6240\u6709 update \u8bed\u53e5\uff0c\u518d\u4e22\u5230\u670d\u52a1\u5668\u4e0a\u66f4\u65b0 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : zhangysh1995 <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    ““
    update x set order = (
    case
    when 1
    then 2<\/p>\n

    ….
    else
    end
    )
    ““ <\/div>\n<\/p><\/div>\n<\/li>\n

  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : vone <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    update t
    set t.order=ods.order
    from xxx t
    join (
    select 1 id, 2 order
    union all
    select 2 id, 3 order
    ……
    )ods on ods.id=t.id<\/p>\n

    \u6570\u636e\u91cf\u5927\u65f6 ods \u5e94\u6539\u4e3a\u4f7f\u7528\u4e34\u65f6\u8868\u5bfc\u5165\u3002 <\/p><\/div>\n<\/p><\/div>\n<\/li>\n

  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : gavindexu <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u5148\u5efa\u4e2a\u8868\uff1f\u7d22\u5f15 join \u518d update \u3002
    \u64cd\u4f5c\u5b8c\u6210\u540e\uff0c\u518d\u628a\u90a3\u4e2a\u4e34\u65f6\u5efa\u7684\u8868 drop \u6389\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : wzwwzw <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    case when <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : buliugu <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    mysql \u53ef\u4ee5\u7528 ON DUPLICATE KEY UPDATE <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : tomari <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    @gavindexu \u8fd9\u6837\u4e0d\u4f1a\u6709\u539f\u5b50\u6027\u7684\u95ee\u9898\u5417 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : xxxyy2y <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    4 \u5df2\u7ecf\u8bf4\u4e86,\u53ef\u4ee5\u505a\u5230\u554a allowMultiQueries=true xml \u52a0\u4e2a foreach \u6807\u7b7e\u5c31\u884c\u4e86 \u6279\u91cf\u66f4\u65b0 \u6279\u91cf\u63d2\u5165\u4f1a\u6253\u5305\u6210\u4e00\u4e2a\u4e8b\u52a1,\u8981\u8003\u8651\u8868\u662f\u5426\u9891\u7e41\u66f4\u65b0,\u5982\u679c\u662f\u9891\u7e41\u66f4\u65b0\u5c31\u5bb9\u6613\u4ea7\u751f\u9501\u8868\uff0c <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : swcat <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    id \u662f\u4e3b\u952e\u5427, \u90a3\u4e48\u53ef\u4ee5\u8fd9\u6837
    “`sql
    insert into tttt(`id`)<\/p>\n

    SELECT @row := @row + 1 AS id FROM
    (select 0 union all select 1 union all select 2 union all select 3 union all select 4 union all select 5 union all select 6 union all select 7 union all select 8 union all select 9) t1,
    (SELECT @row:=0) t<\/p>\n

    on duplicate key update `order` = `id`;
    “` <\/div>\n<\/p><\/div>\n<\/li>\n

  • \n
    \n
    \n
    \u8cc7\u6df1\u5927\u4f6c : MaxFang <\/span> <\/div>\n
    <\/i> <\/span> <\/div>\n<\/p><\/div>\n
    \u770b\u8868\u7ed3\u6784\uff0c\u5982\u679c\u6709 uk\uff0c\u770b\u60c5\u51b5\u53ef\u4ee5\u4f7f\u7528 ON DUPLICATE KEY UPDATE \u63d2\u5165\u66f4\u65b0\u3002
    \u53e6\u5916\u3002\u3002\u3002\u63a8\u8350\u5c3d\u53ef\u80fd\u4fdd\u6301 SQL \u7684\u7b80\u5355\u53ef\u8bfb\uff0c\u8d4b\u503c\u64cd\u4f5c\u653e\u5728\u4e0a\u5c42\u4ee3\u7801\u4e2d\u89e3\u51b3\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n","protected":false},"excerpt":{"rendered":"

    SQL \u4e2d\u6279\u91cf\u66f4\u65b0\u5e94\u8be5\u600e\u4e48\u5199? \u8cc7…<\/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\/155624"}],"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=155624"}],"version-history":[{"count":0,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/155624\/revisions"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=155624"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=155624"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=155624"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}