{"id":153057,"date":"2024-11-02T04:16:17","date_gmt":"2024-11-01T20:16:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/153057\/"},"modified":"2024-11-02T04:16:18","modified_gmt":"2024-11-01T20:16:18","slug":"%e5%89%b5%e5%bb%ba-oracle-%e5%8c%85%e7%9a%84%e8%aa%9e%e6%b3%95","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/153057\/","title":{"rendered":"\u5275\u5efa Oracle \u5305\u7684\u8a9e\u6cd5"},"content":{"rendered":"

\u5275\u5efa Oracle \u5305\u7684\u8a9e\u6cd5<\/h1>\n

\u5728 Oracle \u6578\u64da\u5eab\u4e2d\uff0c\u5305\uff08Package\uff09\u662f\u4e00\u7a2e\u91cd\u8981\u7684 PL\/SQL \u7d50\u69cb\uff0c\u5b83\u53ef\u4ee5\u5c07\u76f8\u95dc\u7684\u7a0b\u5e8f\uff08\u5982\u51fd\u6578\u548c\u904e\u7a0b\uff09\u7d44\u7e54\u5728\u4e00\u8d77\uff0c\u5f9e\u800c\u63d0\u9ad8\u4ee3\u78bc\u7684\u53ef\u91cd\u7528\u6027\u548c\u53ef\u7dad\u8b77\u6027\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u5275\u5efa Oracle \u5305\u7684\u8a9e\u6cd5\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u793a\u4f8b\u4f86\u5e6b\u52a9\u7406\u89e3\u3002<\/p>\n

\u5305\u7684\u7d50\u69cb<\/h2>\n

Oracle \u5305\u4e3b\u8981\u7531\u5169\u500b\u90e8\u5206\u7d44\u6210\uff1a\u5305\u898f\u7bc4\uff08Specification\uff09\u548c\u5305\u9ad4\uff08Body\uff09\u3002\u5305\u898f\u7bc4\u5b9a\u7fa9\u4e86\u5305\u4e2d\u53ef\u7528\u7684\u516c\u5171\u63a5\u53e3\uff0c\u800c\u5305\u9ad4\u5247\u5305\u542b\u4e86\u5177\u9ad4\u7684\u5be6\u73fe\u3002<\/p>\n

1. \u5305\u898f\u7bc4<\/h3>\n

\u5305\u898f\u7bc4\u662f\u5305\u7684\u516c\u5171\u90e8\u5206\uff0c\u5b9a\u7fa9\u4e86\u6240\u6709\u53ef\u4ee5\u88ab\u5916\u90e8\u8abf\u7528\u7684\u904e\u7a0b\u548c\u51fd\u6578\u3002\u5176\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n

CREATE OR REPLACE PACKAGE package_name AS\n    -- \u516c\u5171\u8b8a\u91cf\n    variable_name datatype;\n    \n    -- \u516c\u5171\u904e\u7a0b\n    PROCEDURE procedure_name(parameter_name datatype);\n    \n    -- \u516c\u5171\u51fd\u6578\n    FUNCTION function_name(parameter_name datatype) RETURN return_datatype;\nEND package_name;<\/code><\/pre>\n
2. \u5305\u9ad4<\/h3>\n
\u5305\u9ad4\u662f\u5305\u7684\u5be6\u73fe\u90e8\u5206\uff0c\u5305\u542b\u4e86\u5305\u898f\u7bc4\u4e2d\u5b9a\u7fa9\u7684\u904e\u7a0b\u548c\u51fd\u6578\u7684\u5177\u9ad4\u5be6\u73fe\u3002\u5176\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n
CREATE OR REPLACE PACKAGE BODY package_name AS\n    -- \u904e\u7a0b\u5be6\u73fe\n    PROCEDURE procedure_name(parameter_name datatype) IS\n    BEGIN\n        -- \u5be6\u73fe\u4ee3\u78bc\n    END procedure_name;\n    \n    -- \u51fd\u6578\u5be6\u73fe\n    FUNCTION function_name(parameter_name datatype) RETURN return_datatype IS\n    BEGIN\n        -- \u5be6\u73fe\u4ee3\u78bc\n        RETURN value;\n    END function_name;\nEND package_name;<\/code><\/pre>\n
\u5275\u5efa\u4e00\u500b\u7c21\u55ae\u7684\u5305\u793a\u4f8b<\/h2>\n
\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u5275\u5efa\u4e00\u500b\u8a08\u7b97\u5713\u9762\u7a4d\u7684\u5305\u3002<\/p>\n
1. \u5275\u5efa\u5305\u898f\u7bc4<\/h3>\n
CREATE OR REPLACE PACKAGE circle_package AS\n    FUNCTION calculate_area(radius NUMBER) RETURN NUMBER;\nEND circle_package;<\/code><\/pre>\n
2. \u5275\u5efa\u5305\u9ad4<\/h3>\n
CREATE OR REPLACE PACKAGE BODY circle_package AS\n    FUNCTION calculate_area(radius NUMBER) RETURN NUMBER IS\n    BEGIN\n        RETURN 3.14 * radius * radius;\n    END calculate_area;\nEND circle_package;<\/code><\/pre>\n
\u4f7f\u7528\u5305\u4e2d\u7684\u51fd\u6578<\/h2>\n
\u5275\u5efa\u5305\u5f8c\uff0c\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b\u65b9\u5f0f\u8abf\u7528\u5305\u4e2d\u7684\u51fd\u6578\uff1a<\/p>\n
DECLARE\n    area NUMBER;\nBEGIN\n    area := circle_package.calculate_area(5);\n    DBMS_OUTPUT.PUT_LINE('\u5713\u7684\u9762\u7a4d\u662f: ' || area);\nEND;<\/code><\/pre>\n
\u7e3d\u7d50<\/h2>\n
Oracle \u5305\u662f\u4e00\u7a2e\u5f37\u5927\u7684 PL\/SQL \u7d50\u69cb\uff0c\u80fd\u5920\u5e6b\u52a9\u958b\u767c\u8005\u7d44\u7e54\u548c\u7ba1\u7406\u4ee3\u78bc\u3002\u901a\u904e\u5305\u898f\u7bc4\u548c\u5305\u9ad4\u7684\u7d50\u5408\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u8f15\u9b06\u5730\u5275\u5efa\u53ef\u91cd\u7528\u7684\u4ee3\u78bc\u6a21\u584a\u3002\u82e5\u60a8\u9700\u8981\u9ad8\u6548\u7684 \u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u904b\u884c\u60a8\u7684 Oracle \u6578\u64da\u5eab\uff0c\u8acb\u8003\u616e\u6211\u5011\u7684\u670d\u52d9\u3002\u6211\u5011\u63d0\u4f9b\u7a69\u5b9a\u7684 \u4e91\u670d\u52a1\u5668<\/a> \u548c \u9999\u6e2f\u670d\u52a1\u5668<\/a>\uff0c\u4ee5\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u4e86\u89e3\u5275\u5efa Oracle \u5305\u7684\u8a9e\u6cd5\uff0c\u638c\u63e1\u5982\u4f55\u5b9a\u7fa9\u5305\u7684\u7d50\u69cb\u3001\u7a0b\u5e8f\u548c\u8b8a\u6578\uff0c\u4ee5\u63d0\u5347\u6578\u64da\u5eab\u958b\u767c\u6548\u7387\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-153057","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/153057","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=153057"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/153057\/revisions"}],"predecessor-version":[{"id":153058,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/153057\/revisions\/153058"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=153057"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=153057"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=153057"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}