{"id":2126,"date":"2025-06-02T22:09:35","date_gmt":"2025-06-02T14:09:35","guid":{"rendered":"http:\/\/www.821121.com\/?p=2126"},"modified":"2026-04-23T22:51:26","modified_gmt":"2026-04-23T14:51:26","slug":"oracle23ai-%e6%96%b0%e7%89%b9%e6%80%a7%e4%b9%8bvector-%e6%95%b0%e6%8d%ae%e7%b1%bb%e5%9e%8b","status":"publish","type":"post","link":"http:\/\/www.821121.com\/?p=2126","title":{"rendered":"23ai\u65b0\u7279\u6027\u4e4bVECTOR \u6570\u636e\u7c7b\u578b"},"content":{"rendered":"<p>\u5728\u4f20\u7edf\u6570\u636e\u5e93\u4e2d\uff0c\u5411\u91cf\u6570\u636e\u53ea\u80fd\u901a\u8fc7 VARBINARY\u3001VARCHAR2 \u7b49\u7c7b\u578b \u201c\u52c9\u5f3a\u5b58\u50a8\u201d\u2014\u2014 \u4e0d\u4ec5\u65e0\u6cd5\u76f4\u63a5\u652f\u6301\u5411\u91cf\u8ba1\u7b97\uff0c\u8fd8\u9700\u5f00\u53d1\u8005\u81ea\u884c\u5904\u7406\u5411\u91cf\u7ef4\u5ea6\u3001\u7cbe\u5ea6\u3001\u5e8f\u5217\u5316 \/ \u53cd\u5e8f\u5217\u5316\u7b49\u7ec6\u8282\uff0c\u6781\u6613\u51fa\u9519\u4e14\u6027\u80fd\u4f4e\u4e0b\u3002<br \/>\nOracle 23ai \u65b0\u589e\u7684VECTOR \u6570\u636e\u7c7b\u578b\uff0c\u662f\u4e13\u95e8\u4e3a\u9ad8\u7ef4\u5411\u91cf\u8bbe\u8ba1\u7684\u539f\u751f\u6570\u636e\u7c7b\u578b\uff0c\u6838\u5fc3\u7279\u6027\u5982\u4e0b\uff1a<\/p>\n<h4>\u591a\u7cbe\u5ea6\u652f\u6301\uff0c\u7075\u6d3b\u9002\u914d\u4e0d\u540c\u573a\u666f<\/h4>\n<p>\u652f\u6301 <strong>8-bit\uff08INT8\uff09\u300116-bit\uff08INT16\uff09\u300132-bit\uff08FLOAT32\uff09\u300164-bit\uff08FLOAT64\uff09<\/strong> \u56db\u79cd\u7cbe\u5ea6\u7684\u5411\u91cf\u5b58\u50a8\u3002\u4f8b\u5982\uff1a<br \/>\n\u6587\u672c\u5d4c\u5165\u5411\u91cf\uff08\u5982 OpenAI \u7684 text-embedding-ada-002 \u751f\u6210 1536 \u7ef4\u5411\u91cf\uff09\uff0c\u53ef\u4f7f\u7528 FLOAT32 \u7cbe\u5ea6\uff0c\u5e73\u8861\u5b58\u50a8\u6210\u672c\u4e0e\u8ba1\u7b97\u7cbe\u5ea6\uff1b<br \/>\n\u56fe\u50cf \/ \u97f3\u9891\u7279\u5f81\u5411\u91cf\u5bf9\u7cbe\u5ea6\u8981\u6c42\u6781\u9ad8\u7684\u573a\u666f\uff0c\u53ef\u4f7f\u7528 FLOAT64 \u7cbe\u5ea6\uff1b<br \/>\n\u8d44\u6e90\u53d7\u9650\u7684\u8fb9\u7f18\u8bbe\u5907\u573a\u666f\uff0c\u53ef\u4f7f\u7528 INT8\/INT16 \u7cbe\u5ea6\uff0c\u5927\u5e45\u964d\u4f4e\u5b58\u50a8\u4e0e\u8ba1\u7b97\u5f00\u9500\u3002<\/p>\n<h4>\u7ef4\u5ea6\u5f3a\u5236\u7ea6\u675f\uff0c\u4fdd\u969c\u6570\u636e\u4e00\u81f4\u6027<\/h4>\n<p>\u5b9a\u4e49 VECTOR \u5217\u65f6\u53ef\u6307\u5b9a\u56fa\u5b9a\u7ef4\u5ea6\uff08\u5982VECTOR(1536)\uff09\uff0c\u6570\u636e\u5e93\u4f1a\u5f3a\u5236\u6821\u9a8c\u63d2\u5165\u6570\u636e\u7684\u7ef4\u5ea6\uff0c\u907f\u514d\u56e0\u7ef4\u5ea6\u9519\u8bef\u5bfc\u81f4\u7684\u68c0\u7d22\u5931\u8d25\u3002\u540c\u65f6\uff0c\u652f\u6301\u52a8\u6001\u7ef4\u5ea6\uff08VECTOR\uff09\uff0c\u9002\u914d\u672a\u77e5\u7ef4\u5ea6\u7684\u5411\u91cf\u573a\u666f\uff0c\u7075\u6d3b\u6027\u62c9\u6ee1\u3002<\/p>\n<h4>\u5185\u7f6e\u5411\u91cf\u8ba1\u7b97\u51fd\u6570\uff0c\u7b80\u5316\u5f00\u53d1<\/h4>\n<p>\u539f\u751f\u63d0\u4f9b\u6570\u5341\u79cd\u5411\u91cf\u8ba1\u7b97\u51fd\u6570\uff0c\u65e0\u9700\u5f00\u53d1\u8005\u624b\u52a8\u5b9e\u73b0\u590d\u6742\u7b97\u6cd5\uff1a<br \/>\n\u76f8\u4f3c\u5ea6\u8ba1\u7b97\uff1aVECTOR_DISTANCE\uff08\u652f\u6301\u6b27\u6c0f\u8ddd\u79bb\u3001\u4f59\u5f26\u8ddd\u79bb\u3001\u66fc\u54c8\u987f\u8ddd\u79bb\uff09\u3001VECTOR_SIMILARITY\uff1b<br \/>\n\u5411\u91cf\u64cd\u4f5c\uff1aVECTOR_ADD\u3001VECTOR_MULTIPLY\u3001VECTOR_NORMALIZE\uff08\u5411\u91cf\u5f52\u4e00\u5316\uff0c\u63d0\u5347\u68c0\u7d22\u51c6\u786e\u7387\uff09\uff1b<br \/>\n\u5d4c\u5165\u751f\u6210\uff1aVECTOR_EMBEDDING\uff08\u76f4\u63a5\u5728\u6570\u636e\u5e93\u5185\u8c03\u7528\u5185\u7f6e\u6a21\u578b\u6216\u5916\u90e8 AI \u6a21\u578b\u751f\u6210\u5411\u91cf\uff0c\u65e0\u9700\u5916\u90e8 ETL\uff09\u3002<br \/>\n\u793a\u4f8b\uff1a\u521b\u5efa\u5546\u54c1\u8868\uff0c\u540c\u65f6\u5b58\u50a8\u5546\u54c1\u5173\u7cfb\u6570\u636e\u4e0e\u6587\u672c\u5d4c\u5165\u5411\u91cf<\/p>\n<pre><code class=\"language-sql\">CREATE TABLE products (\n    product_id NUMBER PRIMARY KEY,\n    product_name VARCHAR2(100),\n    price NUMBER(10,2),\n    description_emb VECTOR(1536) -- 1536\u7ef4\u6587\u672c\u5d4c\u5165\u5411\u91cf\uff0cFLOAT32\u7cbe\u5ea6\n);<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u5728\u4f20\u7edf\u6570\u636e\u5e93\u4e2d\uff0c\u5411\u91cf\u6570\u636e\u53ea\u80fd\u901a\u8fc7 VARBINAR<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[57,58],"tags":[],"class_list":["post-2126","post","type-post","status-publish","format-standard","hentry","category-oracle-23ai","category--oracle-23c"],"_links":{"self":[{"href":"http:\/\/www.821121.com\/index.php?rest_route=\/wp\/v2\/posts\/2126","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.821121.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.821121.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.821121.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.821121.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2126"}],"version-history":[{"count":3,"href":"http:\/\/www.821121.com\/index.php?rest_route=\/wp\/v2\/posts\/2126\/revisions"}],"predecessor-version":[{"id":2131,"href":"http:\/\/www.821121.com\/index.php?rest_route=\/wp\/v2\/posts\/2126\/revisions\/2131"}],"wp:attachment":[{"href":"http:\/\/www.821121.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2126"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.821121.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2126"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.821121.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2126"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}