{"id":15813,"date":"2023-12-04T23:00:10","date_gmt":"2023-12-04T15:00:10","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=15813"},"modified":"2023-12-04T23:12:57","modified_gmt":"2023-12-04T15:12:57","slug":"oracle-zhong-shuo-xia-zen-yang-chuang-jian-yi-ge-s","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/12\/04\/oracle-zhong-shuo-xia-zen-yang-chuang-jian-yi-ge-s\/","title":{"rendered":"Oracle \u4e2d\u8bf4\u4e0b\u600e\u6837\u521b\u5efa\u4e00\u4e2a\u89c6\u56fe\uff0c\u89c6\u56fe\u7684\u597d\u5904\uff0c\u89c6\u56fe\u53ef\u4ee5\u63a7\u5236\u6743\u9650\u5417\uff1f"},"content":{"rendered":"

\u5728Oracle\u6570\u636e\u5e93\u4e2d\uff0c\u521b\u5efa\u89c6\u56fe\uff08View\uff09\u662f\u901a\u8fc7\u4e00\u4e2a\u67e5\u8be2\u5b9a\u4e49\u4e00\u4e2a\u865a\u62df\u8868\uff0c\u8be5\u8868\u662f\u7531 SELECT \u8bed\u53e5\u8fd4\u56de\u7684\u7ed3\u679c\u96c6\u7ec4\u6210\u3002\u4ee5\u4e0b\u662f\u521b\u5efa\u89c6\u56fe\u7684\u57fa\u672c\u8bed\u6cd5\u548c\u4e00\u4e9b\u76f8\u5173\u4fe1\u606f\uff1a<\/p>\n

\u521b\u5efa\u89c6\u56fe\u7684\u8bed\u6cd5\uff1a<\/h3>\n
CREATE VIEW view_name AS\nSELECT column1, column2, ...\nFROM table_name\nWHERE condition;\n<\/code><\/pre>\n
    \n
  • view_name<\/code> \u662f\u89c6\u56fe\u7684\u540d\u79f0\u3002<\/li>\n
  • column1, column2, ...<\/code> \u662f\u89c6\u56fe\u4e2d\u5305\u542b\u7684\u5217\u3002<\/li>\n
  • table_name<\/code> \u662f\u89c6\u56fe\u57fa\u4e8e\u7684\u8868\u3002<\/li>\n
  • condition<\/code> \u662f\u53ef\u9009\u7684\u7b5b\u9009\u6761\u4ef6\u3002<\/li>\n<\/ul>\n
    \u89c6\u56fe\u7684\u597d\u5904\uff1a<\/h3>\n
      \n
    1. \u7b80\u5316\u67e5\u8be2\uff1a<\/strong> \u89c6\u56fe\u5141\u8bb8\u5c06\u590d\u6742\u7684\u67e5\u8be2\u903b\u8f91\u5c01\u88c5\u5728\u4e00\u4e2a\u865a\u62df\u8868\u4e2d\uff0c\u7b80\u5316\u4e86\u7528\u6237\u5bf9\u6570\u636e\u5e93\u7684\u67e5\u8be2\u64cd\u4f5c\u3002<\/p>\n<\/li>\n
    2. \n
      \u6570\u636e\u5b89\u5168\u6027\uff1a<\/strong> \u89c6\u56fe\u53ef\u4ee5\u63a7\u5236\u7528\u6237\u5bf9\u6570\u636e\u7684\u8bbf\u95ee\u6743\u9650\uff0c\u53ea\u5141\u8bb8\u7528\u6237\u8bbf\u95ee\u4ed6\u4eec\u9700\u8981\u7684\u90e8\u5206\u6570\u636e\uff0c\u4ece\u800c\u63d0\u9ad8\u4e86\u6570\u636e\u7684\u5b89\u5168\u6027\u3002<\/p>\n<\/li>\n
    3. \n
      \u903b\u8f91\u6570\u636e\u72ec\u7acb\u6027\uff1a<\/strong> \u89c6\u56fe\u4f7f\u5f97\u903b\u8f91\u6570\u636e\u6a21\u578b\u4e0e\u7269\u7406\u6570\u636e\u5b58\u50a8\u6a21\u578b\u5206\u79bb\uff0c\u6539\u53d8\u5e95\u5c42\u8868\u7684\u7ed3\u6784\u4e0d\u4f1a\u5f71\u54cd\u89c6\u56fe\u7684\u4f7f\u7528\u3002<\/p>\n<\/li>\n
    4. \n
      \u91cd\u7528\u6027\uff1a<\/strong> \u89c6\u56fe\u53ef\u4ee5\u88ab\u591a\u4e2a\u7528\u6237\u6216\u5e94\u7528\u7a0b\u5e8f\u91cd\u590d\u4f7f\u7528\uff0c\u907f\u514d\u4e86\u91cd\u590d\u7f16\u5199\u76f8\u540c\u7684\u67e5\u8be2\u903b\u8f91\u3002<\/p>\n<\/li>\n<\/ol>\n
      \u89c6\u56fe\u7684\u6743\u9650\u63a7\u5236\uff1a<\/h3>\n
        \n
      1. \n
        SELECT \u6743\u9650\uff1a<\/strong> \u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u521b\u5efa\u89c6\u56fe\u7684\u7528\u6237\u62e5\u6709\u5bf9\u8be5\u89c6\u56fe\u7684 SELECT \u6743\u9650\u3002\u5176\u4ed6\u7528\u6237\u5982\u679c\u9700\u8981\u8bbf\u95ee\u8be5\u89c6\u56fe\uff0c\u9700\u8981\u88ab\u6388\u4e88 SELECT \u6743\u9650\u3002<\/p>\n
        GRANT SELECT ON view_name TO user_name;\n<\/code><\/pre>\n<\/li>\n
      2. WITH CHECK OPTION\uff1a<\/strong> \u4f7f\u7528 WITH CHECK OPTION<\/code> \u9009\u9879\u53ef\u4ee5\u786e\u4fdd\u89c6\u56fe\u4e2d\u7684\u6570\u636e\u7b26\u5408\u6307\u5b9a\u7684\u6761\u4ef6\uff0c\u9632\u6b62\u63d2\u5165\u6216\u66f4\u65b0\u4e0d\u7b26\u5408\u6761\u4ef6\u7684\u6570\u636e\u3002\n
        CREATE VIEW view_name AS\nSELECT column1, column2, ...\nFROM table_name\nWHERE condition\nWITH CHECK OPTION;\n<\/code><\/pre>\n<\/li>\n
      3. GRANT \u6743\u9650\uff1a<\/strong> \u89c6\u56fe\u7684\u521b\u5efa\u8005\u53ef\u4ee5\u4f7f\u7528 GRANT<\/code> \u8bed\u53e5\u4e3a\u5176\u4ed6\u7528\u6237\u6388\u4e88\u5bf9\u89c6\u56fe\u7684\u8bbf\u95ee\u6743\u9650\u3002\n
        GRANT SELECT ON view_name TO user_name;\n<\/code><\/pre>\n<\/li>\n<\/ol>\n
        \u89c6\u56fe\u662f\u4e00\u79cd\u5f3a\u5927\u7684\u6570\u636e\u5e93\u5bf9\u8c61\uff0c\u5b83\u63d0\u4f9b\u4e86\u66f4\u9ad8\u5c42\u6b21\u7684\u62bd\u8c61\u548c\u5b89\u5168\u6027\u63a7\u5236\u3002\u901a\u8fc7\u5de7\u5999\u5730\u4f7f\u7528\u89c6\u56fe\uff0c\u53ef\u4ee5\u4f7f\u6570\u636e\u5e93\u66f4\u6613\u4e8e\u7ba1\u7406\u548c\u4f7f\u7528\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
        \u5728Oracle\u6570\u636e\u5e93\u4e2d\uff0c\u521b\u5efa\u89c6\u56fe\uff08View\uff09\u662f\u901a\u8fc7\u4e00\u4e2a\u67e5\u8be2\u5b9a\u4e49\u4e00\u4e2a\u865a\u62df\u8868\uff0c\u8be5\u8868\u662f\u7531 SELECT \u8bed\u53e5\u8fd4\u56de\u7684\u7ed3 […]<\/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-15813","post","type-post","status-publish","format-standard","hentry","category-oracel"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/15813","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=15813"}],"version-history":[{"count":1,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/15813\/revisions"}],"predecessor-version":[{"id":15814,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/15813\/revisions\/15814"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=15813"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=15813"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=15813"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}