{"id":207851,"date":"2025-07-08T11:05:27","date_gmt":"2025-07-08T03:05:27","guid":{"rendered":"https:\/\/server.hk\/cnblog\/207851\/"},"modified":"2025-07-08T11:05:27","modified_gmt":"2025-07-08T03:05:27","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8%e6%9f%a5%e8%af%a2%e6%95%b0%e6%8d%ae%e5%ba%93%e6%97%b6%e5%b0%86%e9%9b%aa%e8%8a%b1%e6%95%b0%e7%bb%84%e8%bd%ac%e6%8d%a2%e4%b8%bagolang%e4%b8%ad%e7%9a%84%e6%95%b0%e7%bb%84","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/207851\/","title":{"rendered":"\u5982\u4f55\u5728\u67e5\u8be2\u6570\u636e\u5e93\u65f6\u5c06\u96ea\u82b1\u6570\u7ec4\u8f6c\u6362\u4e3aGolang\u4e2d\u7684\u6570\u7ec4"},"content":{"rendered":"<p><b><\/b> <\/p>\n<p>\u5f53\u524d\u4f4d\u7f6e\uff1a <span>&gt;<\/span> <span>&gt;<\/span> <span>&gt;<\/span> <span>&gt;<\/span> <span>\u5982\u4f55\u5728\u67e5\u8be2\u6570\u636e\u5e93\u65f6\u5c06\u96ea\u82b1\u6570\u7ec4\u8f6c\u6362\u4e3aGolang\u4e2d\u7684\u6570\u7ec4<\/span><\/p>\n<p><span>\u6765\u6e90\uff1astackoverflow<\/span><br \/>\n<span>2024-04-26 08:51:42<\/span><br \/>\n<span><i><\/i>0\u6d4f\u89c8<\/span><br \/>\n<span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>\u6b22\u8fce\u5404\u4f4d\u5c0f\u4f19\u4f34\u6765\u5230\uff0c\u76f8\u805a\u4e8e\u6b64\u90fd\u662f\u7f18\u54c8\u54c8\u54c8\uff01\u4eca\u5929\u6211\u7ed9\u5927\u5bb6\u5e26\u6765<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300a\u5982\u4f55\u5728\u67e5\u8be2\u6570\u636e\u5e93\u65f6\u5c06\u96ea\u82b1\u6570\u7ec4\u8f6c\u6362\u4e3aGolang\u4e2d\u7684\u6570\u7ec4\u300b<\/span>\uff0c\u8fd9\u7bc7\u6587\u7ae0\u4e3b\u8981\u8bb2\u5230<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\u77e5\u8bc6\uff0c\u5982\u679c\u4f60\u5bf9<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">Golang<\/span>\u76f8\u5173\u7684\u77e5\u8bc6\u975e\u5e38\u611f\u5174\u8da3\u6216\u8005\u6b63\u5728\u81ea\u5b66\uff0c\u90fd\u53ef\u4ee5\u5173\u6ce8\u6211\uff0c\u6211\u4f1a\u6301\u7eed\u66f4\u65b0\u76f8\u5173\u6587\u7ae0\uff01\u5f53\u7136\uff0c\u6709\u4ec0\u4e48\u5efa\u8bae\u4e5f\u6b22\u8fce\u5728\u8bc4\u8bba\u7559\u8a00\u63d0\u51fa\uff01\u4e00\u8d77\u5b66\u4e60\uff01<\/p>\n<p> \u95ee\u9898\u5185\u5bb9<br \/>\n <\/p>\n<p>\u6211\u6b63\u5728\u4f7f\u7528\u201cgosnowflake\u201d\u9a71\u52a8\u7a0b\u5e8f\u4ece\u6211\u7684 golang \u5e94\u7528\u7a0b\u5e8f\u67e5\u8be2 snowflake db\u3002 \u96ea\u82b1\u67b6\u6784\uff1a- \u540d\u79f0\u5b57\u7b26\u4e32 \u5e74\u9f84\u6574\u6570 locs \u6570\u7ec4<\/p>\n<p>golang \u4ee3\u7801\uff1a-<\/p>\n<pre>package main\n\nimport (\n    \"database\/sql\"\n    \"fmt\"\n    \"log\"\n    \"strings\"\n\n    _ \"github.com\/snowflakedb\/gosnowflake\"\n)\n\ntype person struct {\n    name        string\n    age         string\n    locs        []string\n\n}\n\nvar db *sql.db\n\nfunc main() {\n\n    connstring := \"user\" + \":\" + \"pwd\" + \"@\" + \"region\" + \"\/\" + \"test\"\n    fmt.println(\"db connection string..\", connstring)\n    db, _ = sql.open(\"snowflake\", connstring)\n\n    defer db.close()\n\n    qry := \"select name,age,locs from test.person where name='abc'\"\n    result, _ := db.query(qry)\n    fmt.println(result)\n\n    for result.next() {\n        var row person\n        err := result.scan(&amp;row.name, &amp;row.age, &amp;row.locs)\n\n\n\n        if err != nil {\n            log.fatal(err)\n        }\n\n        fmt.println(\"before returning..\", row)\n    }\n\n\n}<\/pre>\n<p>\u95ee\u9898\uff1a- \u8fd9\u91cc\u7684\u95ee\u9898\u51fa\u5728\u6570\u7ec4\u4e2d\u7684 db locs \u4e2d\uff0c\u4f46\u662f\u5728\u4ece golang \u4ee3\u7801\u67e5\u8be2\u65f6\uff0c\u5b83\u4ee5\u5b57\u7b26\u4e32\u5f62\u5f0f\u8fd4\u56de\u3002\u6240\u4ee5\u8fd9\u4e9b\u503c\u5c31\u50cf <\/p>\n<pre>[\n   \"XYZ\",\n   \"DEF\"\n]<\/pre>\n<p>\u6211\u60f3\u8981\u7684\u662f\u76f4\u63a5\u5c06 locs \u503c\u8f6c\u6362\u4e3a\u6211\u7684 golang \u4ee3\u7801\u4e2d\u7684\u6570\u7ec4\u3002\u56e0\u6b64\uff0c\u5728 person \u7ed3\u6784\u5185\u90e8\uff0c\u5b83\u76f4\u63a5\u7ed1\u5b9a\u5230 loc []string\u3002<\/p>\n<p> <\/p>\n<h2>\u89e3\u51b3\u65b9\u6848<\/h2>\n<p> <\/p>\n<p>\u9664\u975e gosnowflake \u4e2d\u5df2\u7ecf\u6709\u5185\u7f6e\u7684\u5b57\u7b26\u4e32\u6570\u7ec4\u7c7b\u578b\uff0c\u5426\u5219\u60a8\u53ef\u80fd\u9700\u8981\u5b9e\u73b0\u9075\u5faa \u7684\u81ea\u5df1\u7684\u7c7b\u578b<\/p>\n<p>\u4f8b\u5982<\/p>\n<pre>type arraystring []string\n\nfunc (a *arraystring) scan(src interface{}) error {\n\n    switch v := src.(type) {\n    case string:\n        return json.unmarshal([]byte(v), a)\n    case []byte:\n        return json.unmarshal(v, a)\n    default:\n        return errors.new(\"invalid type\")\n    }\n\n}<\/pre>\n<p>\u90a3\u4e48\u4f60\u7684 <code>person<\/code> \u7ed3\u6784\u5c06\u662f\uff1a<\/p>\n<pre>type Person struct {\n    Name string\n    Age  string\n    Locs ArrayString\n}<\/pre>\n<p>\u7406\u8bba\u8981\u638c\u63e1\uff0c\u5b9e\u64cd\u4e0d\u80fd\u843d\uff01\u4ee5\u4e0a\u5173\u4e8e\u300a\u5982\u4f55\u5728\u67e5\u8be2\u6570\u636e\u5e93\u65f6\u5c06\u96ea\u82b1\u6570\u7ec4\u8f6c\u6362\u4e3aGolang\u4e2d\u7684\u6570\u7ec4\u300b\u7684\u8be6\u7ec6\u4ecb\u7ecd\uff0c\u5927\u5bb6\u90fd\u638c\u63e1\u4e86\u5427\uff01\u5982\u679c\u60f3\u8981\u7ee7\u7eed\u63d0\u5347\u81ea\u5df1\u7684\u80fd\u529b\uff0c\u90a3\u4e48\u5c31\u6765\u5173\u6ce8\u516c\u4f17\u53f7\u5427\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5f53\u524d\u4f4d\u7f6e\uff1a &gt; &gt; &#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-207851","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207851","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=207851"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207851\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=207851"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=207851"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=207851"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}