{"id":5300,"date":"2024-11-14T11:03:54","date_gmt":"2024-11-14T03:03:54","guid":{"rendered":"https:\/\/fwq.ai\/blog\/5300\/"},"modified":"2024-11-14T11:03:54","modified_gmt":"2024-11-14T03:03:54","slug":"oracle%e6%80%8e%e4%b9%88%e6%96%b0%e5%a2%9e%e4%b8%80%e4%b8%aa%e5%ad%97%e6%ae%b5","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/5300\/","title":{"rendered":"oracle\u600e\u4e48\u65b0\u589e\u4e00\u4e2a\u5b57\u6bb5"},"content":{"rendered":"<blockquote><p>\n  \u5728 oracle \u4e2d\u65b0\u589e\u4e00\u4e2a\u5b57\u6bb5\u53ef\u4ee5\u4f7f\u7528 alter table \u547d\u4ee4\uff0c\u5176\u8bed\u6cd5\u4e3a\uff1aalter table table_name add column_name data_type;\u5176\u4e2d table_name \u4e3a\u8868\u540d\u3001column_name \u4e3a\u5b57\u6bb5\u540d\u3001data_type \u4e3a\u5b57\u6bb5\u6570\u636e\u7c7b\u578b\u3002\u6267\u884c\u6b64\u547d\u4ee4\u540e\uff0c\u8868\u4e2d\u5c06\u65b0\u589e\u4e00\u4e2a\u6307\u5b9a\u540d\u79f0\u548c\u6570\u636e\u7c7b\u578b\u7684\u65b0\u5b57\u6bb5\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202405\/26\/2024052618512988740.jpg\" class=\"aligncenter\" title=\"oracle\u600e\u4e48\u65b0\u589e\u4e00\u4e2a\u5b57\u6bb5\u63d2\u56fe\" alt=\"oracle\u600e\u4e48\u65b0\u589e\u4e00\u4e2a\u5b57\u6bb5\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u5728 Oracle \u4e2d\u65b0\u589e\u4e00\u4e2a\u5b57\u6bb5<\/strong><\/p>\n<p>\u5728 Oracle \u4e2d\u65b0\u589e\u4e00\u4e2a\u5b57\u6bb5\u975e\u5e38\u7b80\u5355\uff0c\u53ea\u9700\u8981\u4f7f\u7528 ALTER TABLE \u547d\u4ee4\u5373\u53ef\u3002\u8be5\u547d\u4ee4\u7684\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre>ALTER TABLE table_name ADD column_name data_type;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u5176\u4e2d\uff1a<\/p>\n<ul>\n<li> <strong>table_name<\/strong> \u662f\u8981\u65b0\u589e\u5b57\u6bb5\u7684\u8868\u7684\u540d\u79f0<\/li>\n<li> <strong>column_name<\/strong> \u662f\u8981\u65b0\u589e\u7684\u5b57\u6bb5\u7684\u540d\u79f0<\/li>\n<li> <strong>data_type<\/strong> \u662f\u8981\u65b0\u589e\u5b57\u6bb5\u7684\u6570\u636e\u7c7b\u578b<\/li>\n<\/ul>\n<p><strong>\u793a\u4f8b<\/strong><\/p>\n<p>\u4f8b\u5982\uff0c\u8981\u5728\u540d\u4e3a &#8220;customers&#8221; \u7684\u8868\u4e2d\u65b0\u589e\u4e00\u4e2a\u540d\u4e3a &#8220;age&#8221; \u7684\u5b57\u6bb5\uff0c\u8be5\u5b57\u6bb5\u7684\u6570\u636e\u7c7b\u578b\u4e3a NUMBER\uff0c\u5219\u53ef\u4ee5\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre>ALTER TABLE customers ADD age NUMBER;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u6267\u884c\u6b64\u547d\u4ee4\u540e\uff0c\u8868\u4e2d\u5c06\u65b0\u589e\u4e00\u4e2a\u540d\u4e3a &#8220;age&#8221; \u7684\u5b57\u6bb5\uff0c\u5176\u6570\u636e\u7c7b\u578b\u4e3a NUMBER\u3002<\/p>\n<p><strong>\u6ce8\u610f\u4e8b\u9879<\/strong><\/p>\n<ul>\n<li>\u5728\u65b0\u589e\u5b57\u6bb5\u4e4b\u524d\uff0c\u9700\u8981\u786e\u4fdd\u8868\u5904\u4e8e\u6253\u5f00\u72b6\u6001\u3002<\/li>\n<li>\u65b0\u589e\u7684\u5b57\u6bb5\u4e0d\u80fd\u4e0e\u8868\u4e2d\u5df2\u6709\u7684\u5b57\u6bb5\u540c\u540d\u3002<\/li>\n<li>\u65b0\u589e\u5b57\u6bb5\u540e\uff0c\u9700\u8981\u4e3a\u5176\u6307\u5b9a\u4e00\u4e2a\u9ed8\u8ba4\u503c\u6216\u4f7f\u5176\u53ef\u4e3a NULL\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662f\u600e\u4e48\u65b0\u589e\u4e00\u4e2a\u5b57\u6bb5\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u7f51\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728 oracle \u4e2d\u65b0\u589e\u4e00\u4e2a\u5b57\u6bb5\u53ef\u4ee5\u4f7f\u7528 alter table \u547d\u4ee4\uff0c\u5176\u8bed\u6cd5\u4e3a\uff1aalter table table_name add column_name data_type;\u5176\u4e2d table_name \u4e3a\u8868\u540d\u3001column_name \u4e3a\u5b57\u6bb5\u540d\u3001data_type \u4e3a\u5b57\u6bb5\u6570\u636e\u7c7b\u578b\u3002\u6267\u884c\u6b64\u547d\u4ee4\u540e\uff0c\u8868\u4e2d\u5c06\u65b0\u589e\u4e00\u4e2a\u6307\u5b9a\u540d\u79f0\u548c\u6570\u636e\u7c7b\u578b\u7684\u65b0\u5b57\u6bb5\u3002 \u5982\u4f55\u5728 Oracle \u4e2d\u65b0\u589e\u4e00\u4e2a\u5b57\u6bb5 \u5728 Oracle \u4e2d\u65b0\u589e\u4e00\u4e2a\u5b57\u6bb5\u975e\u5e38\u7b80\u5355\uff0c\u53ea\u9700\u8981\u4f7f\u7528 ALTER TABLE \u547d\u4ee4\u5373\u53ef\u3002\u8be5\u547d\u4ee4\u7684\u8bed\u6cd5\u5982\u4e0b\uff1a ALTER TABLE table_name ADD column_name data_type; \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d\uff1a table_name \u662f\u8981\u65b0\u589e\u5b57\u6bb5\u7684\u8868\u7684\u540d\u79f0 column_name \u662f\u8981\u65b0\u589e\u7684\u5b57\u6bb5\u7684\u540d\u79f0 data_type \u662f\u8981\u65b0\u589e\u5b57\u6bb5\u7684\u6570\u636e\u7c7b\u578b \u793a\u4f8b \u4f8b\u5982\uff0c\u8981\u5728\u540d\u4e3a &#8220;customers&#8221; \u7684\u8868\u4e2d\u65b0\u589e\u4e00\u4e2a\u540d\u4e3a &#8220;age&#8221; \u7684\u5b57\u6bb5\uff0c\u8be5\u5b57\u6bb5\u7684\u6570\u636e\u7c7b\u578b\u4e3a NUMBER\uff0c\u5219\u53ef\u4ee5\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\uff1a ALTER TABLE customers ADD age NUMBER; \u767b\u5f55\u540e\u590d\u5236 \u6267\u884c\u6b64\u547d\u4ee4\u540e\uff0c\u8868\u4e2d\u5c06\u65b0\u589e\u4e00\u4e2a\u540d\u4e3a &#8220;age&#8221; \u7684\u5b57\u6bb5\uff0c\u5176\u6570\u636e\u7c7b\u578b\u4e3a [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-5300","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5300","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=5300"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5300\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=5300"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=5300"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=5300"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}