{"id":5349,"date":"2024-11-14T11:08:08","date_gmt":"2024-11-14T03:08:08","guid":{"rendered":"https:\/\/fwq.ai\/blog\/5349\/"},"modified":"2024-11-14T11:08:08","modified_gmt":"2024-11-14T03:08:08","slug":"oracle%e5%8a%a8%e6%80%81sql%e6%80%8e%e4%b9%88%e5%88%9b%e5%bb%ba","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/5349\/","title":{"rendered":"oracle\u52a8\u6001sql\u600e\u4e48\u521b\u5efa"},"content":{"rendered":"

\n \u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528 oracle \u7684\u52a8\u6001 sql \u6765\u6839\u636e\u8fd0\u884c\u65f6\u8f93\u5165\u521b\u5efa\u548c\u6267\u884c sql \u8bed\u53e5\u3002\u6b65\u9aa4\u5305\u62ec\uff1a\u51c6\u5907\u4e00\u4e2a\u7a7a\u5b57\u7b26\u4e32\u53d8\u91cf\u6765\u5b58\u50a8\u52a8\u6001\u751f\u6210\u7684 sql \u8bed\u53e5\u3002\u4f7f\u7528 execute immediate \u6216 prepare \u8bed\u53e5\u7f16\u8bd1\u548c\u6267\u884c\u52a8\u6001 sql \u8bed\u53e5\u3002\u4f7f\u7528 bind \u53d8\u91cf\u4f20\u9012\u7528\u6237\u8f93\u5165\u6216\u5176\u4ed6\u52a8\u6001\u503c\u7ed9\u52a8\u6001 sql\u3002\u4f7f\u7528 execute immediate \u6216 execute \u6267\u884c\u52a8\u6001 sql \u8bed\u53e5\u3002\n<\/p><\/blockquote>\n

\"oracle\u52a8\u6001sql\u600e\u4e48\u521b\u5efa\u63d2\u56fe\"<\/p>\n

\u5982\u4f55\u4f7f\u7528Oracle\u521b\u5efa\u52a8\u6001SQL<\/strong><\/p>\n

Oracle\u7684\u52a8\u6001SQL\u5141\u8bb8\u4f60\u6839\u636e\u8fd0\u884c\u65f6\u8f93\u5165\u521b\u5efa\u548c\u6267\u884cSQL\u8bed\u53e5\u3002\u8fd9\u975e\u5e38\u9002\u5408\u9700\u8981\u5bf9\u7528\u6237\u8f93\u5165\u505a\u51fa\u54cd\u5e94\u6216\u9700\u8981\u6839\u636e\u7279\u5b9a\u6761\u4ef6\u4fee\u6539\u67e5\u8be2\u7684\u5e94\u7528\u7a0b\u5e8f\u3002<\/p>\n

\u521b\u5efa\u52a8\u6001SQL\u7684\u6b65\u9aa4\uff1a<\/strong><\/p>\n

    \n
  1. \u51c6\u5907\u597d\u4e00\u4e2a\u7a7a\u5b57\u7b26\u4e32\u53d8\u91cf\uff1a<\/strong>\u7528\u4e8e\u5b58\u50a8\u52a8\u6001\u751f\u6210\u7684SQL\u8bed\u53e5\u3002<\/li>\n
  2. \u4f7f\u7528EXECUTE IMMEDIATE\u6216PREPARE\u8bed\u53e5\uff1a<\/strong>\u4f7f\u7528\u8fd9\u4e9b\u8bed\u53e5\u6765\u7f16\u8bd1\u548c\u6267\u884c\u52a8\u6001SQL\u8bed\u53e5\u3002EXECUTE IMMEDIATE \u7acb\u5373\u6267\u884cSQL\uff0c\u800cPREPARE \u521b\u5efa\u4e00\u4e2a\u53ef\u91cd\u590d\u4f7f\u7528\u7684\u9884\u7f16\u8bd1\u8bed\u53e5\u3002<\/li>\n
  3. \u4f7f\u7528\u52a8\u6001\u8f93\u5165\uff1a<\/strong>\u4f7f\u7528 bind \u53d8\u91cf\u5c06\u7528\u6237\u8f93\u5165\u6216\u5176\u4ed6\u52a8\u6001\u503c\u4f20\u9012\u7ed9\u52a8\u6001SQL\u3002<\/li>\n
  4. \u6267\u884c\u52a8\u6001SQL\uff1a<\/strong>\u4f7f\u7528EXECUTE IMMEDIATE\u6216EXECUTE\u6765\u6267\u884c\u52a8\u6001SQL\u8bed\u53e5\u3002<\/li>\n<\/ol>\n

    \u793a\u4f8b\uff1a<\/strong><\/p>\n

    \u4ee5\u4e0b\u793a\u4f8b\u6f14\u793a\u5982\u4f55\u4f7f\u7528EXECUTE IMMEDIATE\u521b\u5efa\u52a8\u6001SQL\uff1a<\/p>\n

    -- \u521b\u5efa\u4e00\u4e2a\u7a7a\u5b57\u7b26\u4e32\u53d8\u91cf\nDECLARE sql_string VARCHAR2(4000);\n\n-- \u51c6\u5907\u52a8\u6001SQL\nsql_string := 'SELECT * FROM employees WHERE department_id = :dept_id';\n\n-- \u4f7f\u7528 bind \u53d8\u91cf\u4f20\u9012\u52a8\u6001\u8f93\u5165\nEXECUTE IMMEDIATE sql_string USING dept_id;<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u5176\u4ed6\u6ce8\u610f\u4e8b\u9879\uff1a<\/strong><\/p>\n
      \n
    • \u786e\u4fdd\u4ed4\u7ec6\u5730\u9a8c\u8bc1\u7528\u6237\u8f93\u5165\u4ee5\u907f\u514dSQL\u6ce8\u5165\u653b\u51fb\u3002<\/li>\n
    • \u4f7f\u7528 bind \u53d8\u91cf\u800c\u4e0d\u662f\u76f4\u63a5\u5728\u52a8\u6001SQL\u4e2d\u5d4c\u5165\u503c\uff0c\u4ee5\u63d0\u9ad8\u6027\u80fd\u548c\u5b89\u5168\u6027\u3002<\/li>\n
    • \u53ef\u4ee5\u4f7f\u7528PL\/SQL\u5757\u6216\u533f\u540d\u5757\u6765\u5c01\u88c5\u52a8\u6001SQL\u4ee3\u7801\u3002<\/li>\n<\/ul>\n
      \u4ee5\u4e0a\u5c31\u662f\u52a8\u6001sql\u600e\u4e48\u521b\u5efa\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":"
      \u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528 oracle \u7684\u52a8\u6001 sql \u6765\u6839\u636e\u8fd0\u884c\u65f6\u8f93\u5165\u521b\u5efa\u548c\u6267\u884c sql \u8bed\u53e5\u3002\u6b65\u9aa4\u5305\u62ec\uff1a\u51c6\u5907\u4e00\u4e2a\u7a7a\u5b57\u7b26\u4e32\u53d8\u91cf\u6765\u5b58\u50a8\u52a8\u6001\u751f\u6210\u7684 sql \u8bed\u53e5\u3002\u4f7f\u7528 execute immediate \u6216 prepare \u8bed\u53e5\u7f16\u8bd1\u548c\u6267\u884c\u52a8\u6001 sql \u8bed\u53e5\u3002\u4f7f\u7528 bind \u53d8\u91cf\u4f20\u9012\u7528\u6237\u8f93\u5165\u6216\u5176\u4ed6\u52a8\u6001\u503c\u7ed9\u52a8\u6001 sql\u3002\u4f7f\u7528 execute immediate \u6216 execute \u6267\u884c\u52a8\u6001 sql \u8bed\u53e5\u3002 \u5982\u4f55\u4f7f\u7528Oracle\u521b\u5efa\u52a8\u6001SQL Oracle\u7684\u52a8\u6001SQL\u5141\u8bb8\u4f60\u6839\u636e\u8fd0\u884c\u65f6\u8f93\u5165\u521b\u5efa\u548c\u6267\u884cSQL\u8bed\u53e5\u3002\u8fd9\u975e\u5e38\u9002\u5408\u9700\u8981\u5bf9\u7528\u6237\u8f93\u5165\u505a\u51fa\u54cd\u5e94\u6216\u9700\u8981\u6839\u636e\u7279\u5b9a\u6761\u4ef6\u4fee\u6539\u67e5\u8be2\u7684\u5e94\u7528\u7a0b\u5e8f\u3002 \u521b\u5efa\u52a8\u6001SQL\u7684\u6b65\u9aa4\uff1a \u51c6\u5907\u597d\u4e00\u4e2a\u7a7a\u5b57\u7b26\u4e32\u53d8\u91cf\uff1a\u7528\u4e8e\u5b58\u50a8\u52a8\u6001\u751f\u6210\u7684SQL\u8bed\u53e5\u3002 \u4f7f\u7528EXECUTE IMMEDIATE\u6216PREPARE\u8bed\u53e5\uff1a\u4f7f\u7528\u8fd9\u4e9b\u8bed\u53e5\u6765\u7f16\u8bd1\u548c\u6267\u884c\u52a8\u6001SQL\u8bed\u53e5\u3002EXECUTE IMMEDIATE \u7acb\u5373\u6267\u884cSQL\uff0c\u800cPREPARE \u521b\u5efa\u4e00\u4e2a\u53ef\u91cd\u590d\u4f7f\u7528\u7684\u9884\u7f16\u8bd1\u8bed\u53e5\u3002 \u4f7f\u7528\u52a8\u6001\u8f93\u5165\uff1a\u4f7f\u7528 bind \u53d8\u91cf\u5c06\u7528\u6237\u8f93\u5165\u6216\u5176\u4ed6\u52a8\u6001\u503c\u4f20\u9012\u7ed9\u52a8\u6001SQL\u3002 \u6267\u884c\u52a8\u6001SQL\uff1a\u4f7f\u7528EXECUTE IMMEDIATE\u6216EXECUTE\u6765\u6267\u884c\u52a8\u6001SQL\u8bed\u53e5\u3002 \u793a\u4f8b\uff1a \u4ee5\u4e0b\u793a\u4f8b\u6f14\u793a\u5982\u4f55\u4f7f\u7528EXECUTE IMMEDIATE\u521b\u5efa\u52a8\u6001SQL\uff1a — \u521b\u5efa\u4e00\u4e2a\u7a7a\u5b57\u7b26\u4e32\u53d8\u91cf DECLARE sql_string VARCHAR2(4000); — \u51c6\u5907\u52a8\u6001SQL sql_string := ‘SELECT * FROM […]<\/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-5349","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5349","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=5349"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5349\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=5349"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=5349"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=5349"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}