{"id":15667,"date":"2023-12-04T21:36:38","date_gmt":"2023-12-04T13:36:38","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=15667"},"modified":"2023-12-04T21:45:20","modified_gmt":"2023-12-04T13:45:20","slug":"oracle-zhong-chang-yong-de-oracle-cao-zuo-de-ming","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/12\/04\/oracle-zhong-chang-yong-de-oracle-cao-zuo-de-ming\/","title":{"rendered":"Oracle \u4e2d\u5e38\u7528\u7684 Oracle \u64cd\u4f5c\u7684\u547d\u4ee4\uff1f"},"content":{"rendered":"<p>\u5728 Oracle \u6570\u636e\u5e93\u4e2d\uff0c\u6709\u8bb8\u591a\u5e38\u7528\u7684\u547d\u4ee4\u548c SQL \u8bed\u53e5\u53ef\u7528\u4e8e\u7ba1\u7406\u6570\u636e\u5e93\u3001\u8868\u3001\u6570\u636e\u548c\u6743\u9650\u7b49\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u89c1\u7684 Oracle \u547d\u4ee4\u548c SQL \u8bed\u53e5\uff1a<\/p>\n<ol>\n<li>\n<strong>\u6570\u636e\u5e93\u7ba1\u7406\uff1a<\/strong><\/p>\n<ul>\n<li>\u521b\u5efa\u6570\u636e\u5e93\uff1a<code>CREATE DATABASE dbname;<\/code><\/li>\n<li>\u5220\u9664\u6570\u636e\u5e93\uff1a<code>DROP DATABASE dbname;<\/code><\/li>\n<li>\u6253\u5f00\u6570\u636e\u5e93\uff1a<code>STARTUP;<\/code><\/li>\n<li>\u5173\u95ed\u6570\u636e\u5e93\uff1a<code>SHUTDOWN;<\/code><\/li>\n<li>\u66f4\u6539\u6570\u636e\u5e93\u72b6\u6001\uff1a<code>ALTER DATABASE dbname OPEN\/CLOSE\/MOUNT;<\/code><\/li>\n<\/ul>\n<\/li>\n<li>\n<strong>\u7528\u6237\u548c\u6743\u9650\u7ba1\u7406\uff1a<\/strong><\/p>\n<ul>\n<li>\u521b\u5efa\u7528\u6237\uff1a<code>CREATE USER username IDENTIFIED BY password;<\/code><\/li>\n<li>\u6388\u6743\u7528\u6237\u6743\u9650\uff1a<code>GRANT privilege TO username;<\/code><\/li>\n<li>\u64a4\u9500\u7528\u6237\u6743\u9650\uff1a<code>REVOKE privilege FROM username;<\/code><\/li>\n<\/ul>\n<\/li>\n<li>\n<strong>\u8868\u7ba1\u7406\uff1a<\/strong><\/p>\n<ul>\n<li>\u521b\u5efa\u8868\uff1a<code>CREATE TABLE tablename (column1 datatype, column2 datatype, ...);<\/code><\/li>\n<li>\u5220\u9664\u8868\uff1a<code>DROP TABLE tablename;<\/code><\/li>\n<li>\u4fee\u6539\u8868\u7ed3\u6784\uff1a<code>ALTER TABLE tablename ADD\/DROP\/MODIFY column;<\/code><\/li>\n<\/ul>\n<\/li>\n<li>\n<strong>\u6570\u636e\u64cd\u4f5c\uff1a<\/strong><\/p>\n<ul>\n<li>\u63d2\u5165\u6570\u636e\uff1a<code>INSERT INTO tablename (column1, column2, ...) VALUES (value1, value2, ...);<\/code><\/li>\n<li>\u66f4\u65b0\u6570\u636e\uff1a<code>UPDATE tablename SET column1 = value1 WHERE condition;<\/code><\/li>\n<li>\u5220\u9664\u6570\u636e\uff1a<code>DELETE FROM tablename WHERE condition;<\/code><\/li>\n<li>\u67e5\u8be2\u6570\u636e\uff1a<code>SELECT * FROM tablename WHERE condition;<\/code><\/li>\n<\/ul>\n<\/li>\n<li>\n<strong>\u7d22\u5f15\u548c\u7ea6\u675f\uff1a<\/strong><\/p>\n<ul>\n<li>\u521b\u5efa\u7d22\u5f15\uff1a<code>CREATE INDEX index_name ON tablename (column);<\/code><\/li>\n<li>\u521b\u5efa\u4e3b\u952e\u7ea6\u675f\uff1a<code>ALTER TABLE tablename ADD CONSTRAINT pk_name PRIMARY KEY (column);<\/code><\/li>\n<li>\u521b\u5efa\u5916\u952e\u7ea6\u675f\uff1a<code>ALTER TABLE tablename ADD CONSTRAINT fk_name FOREIGN KEY (column) REFERENCES parent_table (column);<\/code><\/li>\n<\/ul>\n<\/li>\n<li>\n<strong>\u6570\u636e\u67e5\u8be2\u548c\u5206\u6790\uff1a<\/strong><\/p>\n<ul>\n<li>\u67e5\u8be2\u4f18\u5316\u8ba1\u5212\uff1a<code>EXPLAIN PLAN FOR SELECT * FROM tablename;<\/code><\/li>\n<li>\u663e\u793a\u4f18\u5316\u8ba1\u5212\uff1a<code>SELECT * FROM TABLE(DBMS_XPLAN.DISPLAY);<\/code><\/li>\n<li>\u805a\u5408\u51fd\u6570\u548c\u5206\u7ec4\uff1a<code>SELECT SUM(column) FROM tablename GROUP BY column;<\/code><\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<p>\u8fd9\u4e9b\u547d\u4ee4\u548c SQL \u8bed\u53e5\u662f\u5728 Oracle \u6570\u636e\u5e93\u4e2d\u5e38\u7528\u7684\u64cd\u4f5c\u6307\u4ee4\uff0c\u7528\u4e8e\u7ba1\u7406\u6570\u636e\u5e93\u5bf9\u8c61\u3001\u64cd\u4f5c\u6570\u636e\u548c\u63a7\u5236\u7528\u6237\u6743\u9650\u7b49\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728 Oracle \u6570\u636e\u5e93\u4e2d\uff0c\u6709\u8bb8\u591a\u5e38\u7528\u7684\u547d\u4ee4\u548c SQL \u8bed\u53e5\u53ef\u7528\u4e8e\u7ba1\u7406\u6570\u636e\u5e93\u3001\u8868\u3001\u6570\u636e\u548c\u6743\u9650\u7b49\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u89c1 [&hellip;]<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[120],"tags":[],"class_list":["post-15667","post","type-post","status-publish","format-standard","hentry","category-oracel"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/15667","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/comments?post=15667"}],"version-history":[{"count":1,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/15667\/revisions"}],"predecessor-version":[{"id":15668,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/15667\/revisions\/15668"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=15667"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=15667"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=15667"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}