{"id":199919,"date":"2025-05-06T10:32:57","date_gmt":"2025-05-06T02:32:57","guid":{"rendered":"https:\/\/server.hk\/cnblog\/199919\/"},"modified":"2025-05-06T10:32:57","modified_gmt":"2025-05-06T02:32:57","slug":"%e6%8e%a2%e7%a9%b6oracle%e5%92%8csql%e7%9a%84%e7%89%b9%e7%82%b9%ef%bc%9a%e6%95%b0%e6%8d%ae%e7%ae%a1%e7%90%86%e5%88%a9%e5%99%a8","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/199919\/","title":{"rendered":"\u63a2\u7a76Oracle\u548cSQL\u7684\u7279\u70b9\uff1a\u6570\u636e\u7ba1\u7406\u5229\u5668"},"content":{"rendered":"

<\/b> <\/p>\n

\u63a2\u7a76Oracle\u548cSQL\u7684\u7279\u70b9\uff1a\u6570\u636e\u7ba1\u7406\u5229\u5668<\/h1>\n

\u76ee\u524d\u4e3b\u673a\u5b9d\u8d1d\u4e0a\u5df2\u7ecf\u6709\u5f88\u591a\u5173\u4e8e\u7684\u6587\u7ae0\u4e86\uff0c\u81ea\u5df1\u5728\u521d\u6b21\u9605\u8bfb\u8fd9\u4e9b\u6587\u7ae0\u4e2d\uff0c\u4e5f\u89c1\u8bc6\u5230\u4e86\u5f88\u591a\u5b66\u4e60\u601d\u8def\uff1b\u90a3\u4e48\u672c\u6587\uff0c\u4e5f\u5e0c\u671b\u80fd\u5e2e\u52a9\u5230\u5927\u5bb6\uff0c\u5982\u679c\u9605\u8bfb\u5b8c\u540e\u771f\u7684\u5bf9\u4f60\u5b66\u4e60\u6709\u5e2e\u52a9\uff0c\u6b22\u8fce\u52a8\u52a8\u624b\u6307\uff0c\u8bc4\u8bba\u7559\u8a00\u5e76\u5206\u4eab~<\/p>\n

\u6570\u636e\u7ba1\u7406\u5229\u5668\uff1a\u6df1\u5ea6\u6bd4\u8f83Oracle\u548cSQL\u7684\u7279\u70b9<\/p>\n

\u5728\u5f53\u4eca\u4fe1\u606f\u65f6\u4ee3\uff0c\u6570\u636e\u7ba1\u7406\u6210\u4e3a\u5404\u884c\u5404\u4e1a\u4e0d\u53ef\u6216\u7f3a\u7684\u91cd\u8981\u7ec4\u6210\u90e8\u5206\u3002\u5728\u6570\u636e\u5e93\u9886\u57df\uff0cOracle\u548cSQL\u662f\u4e24\u4e2a\u5907\u53d7\u5173\u6ce8\u7684\u8f6f\u4ef6\u4ea7\u54c1\uff0c\u5b83\u4eec\u5728\u6570\u636e\u7ba1\u7406\u65b9\u9762\u62e5\u6709\u5f3a\u5927\u7684\u529f\u80fd\u548c\u6027\u80fd\u3002\u672c\u6587\u5c06\u6df1\u5ea6\u6bd4\u8f83Oracle\u548cSQL\u7684\u7279\u70b9\uff0c\u63a2\u8ba8\u5b83\u4eec\u7684\u4f18\u52bf\u548c\u52a3\u52bf\uff0c\u5e2e\u52a9\u8bfb\u8005\u66f4\u597d\u5730\u9009\u62e9\u9002\u5408\u81ea\u5df1\u9700\u6c42\u7684\u6570\u636e\u7ba1\u7406\u5de5\u5177\u3002<\/p>\n

1. \u6570\u636e\u7c7b\u578b\u652f\u6301<\/strong><\/p>\n

Oracle\u548cSQL\u90fd\u652f\u6301\u591a\u79cd\u6570\u636e\u7c7b\u578b\uff0c\u5305\u62ec\u6574\u578b\u3001\u6d6e\u70b9\u578b\u3001\u65e5\u671f\u578b\u7b49\u3002Oracle\u6570\u636e\u5e93\u8fd8\u652f\u6301\u590d\u6742\u7684\u6570\u636e\u7c7b\u578b\uff0c\u5982BLOB\u3001CLOB\u7b49\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u662f\u5728Oracle\u4e2d\u521b\u5efa\u8868\u65f6\u5b9a\u4e49\u4e0d\u540c\u6570\u636e\u7c7b\u578b\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n

CREATE TABLE employee (\n    emp_id NUMBER,\n    emp_name VARCHAR2(50),\n    emp_salary FLOAT,\n    emp_photo BLOB\n);<\/pre>\n
SQL\u540c\u6837\u652f\u6301\u5404\u79cd\u57fa\u672c\u6570\u636e\u7c7b\u578b\uff0c\u4f46\u5728\u5904\u7406\u590d\u6742\u6570\u636e\u7c7b\u578b\u65f6\u76f8\u5bf9\u6709\u9650\u3002\u4ee5\u4e0b\u662f\u5728SQL Server\u4e2d\u521b\u5efa\u8868\u65f6\u5b9a\u4e49\u6570\u636e\u7c7b\u578b\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n
CREATE TABLE employee (\n    emp_id INT,\n    emp_name VARCHAR(50),\n    emp_salary DECIMAL,\n    emp_photo VARBINARY(MAX)\n);<\/pre>\n
2. \u67e5\u8be2\u8bed\u8a00\u652f\u6301<\/strong><\/p>\n
Oracle\u548cSQL\u90fd\u652f\u6301\u7ed3\u6784\u5316\u67e5\u8be2\u8bed\u8a00\uff08SQL\uff09\uff0c\u4f46\u5728\u8bed\u6cd5\u7684\u7ec6\u8282\u4e0a\u5b58\u5728\u4e00\u4e9b\u5dee\u5f02\u3002\u4f8b\u5982\uff0c\u5728\u67e5\u8be2\u6570\u636e\u65f6\uff0cOracle\u4f7f\u7528ROWNUM<\/code>\u5173\u952e\u5b57\u6765\u9650\u5236\u8fd4\u56de\u7684\u884c\u6570\uff0c\u800cSQL Server\u4f7f\u7528TOP<\/code>\u5173\u952e\u5b57\u3002\u4ee5\u4e0b\u662f\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n
\u5728Oracle\u4e2d\u83b7\u53d6\u524d5\u6761\u6570\u636e\u7684\u67e5\u8be2\u8bed\u53e5\uff1a<\/p>\n
SELECT * FROM employee WHERE ROWNUM <= 5;<\/pre>\n
\u5728SQL Server\u4e2d\u83b7\u53d6\u524d5\u6761\u6570\u636e\u7684\u67e5\u8be2\u8bed\u53e5\uff1a<\/p>\n
SELECT TOP 5 * FROM employee;<\/pre>\n
3. \u4e8b\u52a1\u652f\u6301<\/strong><\/p>\n
\u4e8b\u52a1\u662f\u6570\u636e\u5e93\u7ba1\u7406\u4e2d\u7684\u91cd\u8981\u6982\u5ff5\uff0c\u7528\u4e8e\u786e\u4fdd\u6570\u636e\u7684\u5b8c\u6574\u6027\u548c\u4e00\u81f4\u6027\u3002Oracle\u548cSQL\u90fd\u652f\u6301\u4e8b\u52a1\u7684\u63d0\u4ea4\uff08commit\uff09\u548c\u56de\u6eda\uff08rollback\uff09\u64cd\u4f5c\u3002\u4ee5\u4e0b\u662f\u5728Oracle\u548cSQL Server\u4e2d\u6267\u884c\u4e8b\u52a1\u64cd\u4f5c\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n
\u5728Oracle\u4e2d\u6267\u884c\u4e8b\u52a1\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n
BEGIN\n    INSERT INTO employee VALUES (1, 'Alice', 5000);\n    INSERT INTO employee VALUES (2, 'Bob', 6000);\n    COMMIT;\nEND;<\/pre>\n
\u5728SQL Server\u4e2d\u6267\u884c\u4e8b\u52a1\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n
BEGIN TRANSACTION\nINSERT INTO employee VALUES (1, 'Alice', 5000);\nINSERT INTO employee VALUES (2, 'Bob', 6000);\nCOMMIT TRANSACTION;<\/pre>\n
4. \u7d22\u5f15\u529f\u80fd<\/strong><\/p>\n
\u7d22\u5f15\u662f\u63d0\u9ad8\u6570\u636e\u5e93\u67e5\u8be2\u6027\u80fd\u7684\u91cd\u8981\u624b\u6bb5\u3002Oracle\u548cSQL\u90fd\u652f\u6301\u521b\u5efa\u5404\u79cd\u7c7b\u578b\u7684\u7d22\u5f15\uff0c\u5982\u5355\u5217\u7d22\u5f15\u3001\u590d\u5408\u7d22\u5f15\u7b49\u3002\u4ee5\u4e0b\u662f\u5728Oracle\u548cSQL Server\u4e2d\u521b\u5efa\u7d22\u5f15\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n
\u5728Oracle\u4e2d\u521b\u5efa\u7d22\u5f15\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n
CREATE INDEX emp_id_index ON employee (emp_id);<\/pre>\n
\u5728SQL Server\u4e2d\u521b\u5efa\u7d22\u5f15\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n
CREATE INDEX emp_id_index ON employee (emp_id);<\/pre>\n
5. \u5b58\u50a8\u8fc7\u7a0b\u548c\u89e6\u53d1\u5668<\/strong><\/p>\n
\u5b58\u50a8\u8fc7\u7a0b\u548c\u89e6\u53d1\u5668\u662f\u6570\u636e\u5e93\u4e2d\u5b58\u50a8\u548c\u6267\u884c\u4e00\u7cfb\u5217SQL\u8bed\u53e5\u7684\u903b\u8f91\u5355\u5143\u3002Oracle\u548cSQL\u90fd\u652f\u6301\u5b58\u50a8\u8fc7\u7a0b\u548c\u89e6\u53d1\u5668\u7684\u521b\u5efa\u548c\u8c03\u7528\u3002\u4ee5\u4e0b\u662f\u5728Oracle\u548cSQL Server\u4e2d\u521b\u5efa\u5b58\u50a8\u8fc7\u7a0b\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n
\u5728Oracle\u4e2d\u521b\u5efa\u5b58\u50a8\u8fc7\u7a0b\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n
CREATE OR REPLACE PROCEDURE get_employee_info (emp_id IN NUMBER, info OUT VARCHAR2)\nIS\nBEGIN\n    SELECT emp_name INTO info FROM employee WHERE emp_id = emp_id;\nEND;<\/pre>\n
\u5728SQL Server\u4e2d\u521b\u5efa\u5b58\u50a8\u8fc7\u7a0b\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n
CREATE PROCEDURE get_employee_info \n    @emp_id INT,\n    @info VARCHAR(50) OUTPUT\nAS\nBEGIN\n    SELECT @info = emp_name FROM employee WHERE emp_id = @emp_id;\nEND;<\/pre>\n
\u603b\u7ed3<\/strong><\/p>\n
\u7efc\u4e0a\u6240\u8ff0\uff0cOracle\u548cSQL\u5728\u6570\u636e\u7ba1\u7406\u9886\u57df\u90fd\u6709\u5404\u81ea\u72ec\u7279\u7684\u7279\u70b9\u548c\u4f18\u52bf\u3002Oracle\u529f\u80fd\u5f3a\u5927\uff0c\u9002\u7528\u4e8e\u5927\u89c4\u6a21\u4f01\u4e1a\u7ea7\u5e94\u7528\uff0c\u800cSQL Server\u6613\u5b66\u6613\u7528\uff0c\u9002\u7528\u4e8e\u4e2d\u5c0f\u578b\u4f01\u4e1a\u6216\u4e2a\u4eba\u5f00\u53d1\u8005\u3002\u5728\u9009\u62e9\u6570\u636e\u5e93\u7ba1\u7406\u5de5\u5177\u65f6\uff0c\u9700\u6839\u636e\u5b9e\u9645\u9700\u6c42\u548c\u9879\u76ee\u89c4\u6a21\u6765\u8fdb\u884c\u8bc4\u4f30\u548c\u9009\u62e9\u3002\u5e0c\u671b\u672c\u6587\u5bf9\u8bfb\u8005\u6709\u6240\u5e2e\u52a9\uff0c\u5e2e\u52a9\u5927\u5bb6\u66f4\u597d\u5730\u4e86\u89e3\u548c\u6bd4\u8f83Oracle\u548cSQL\u7684\u7279\u70b9\u3002<\/p>\n
\u4ee5\u4e0a\u5c31\u662f\u672c\u6587\u7684\u5168\u90e8\u5185\u5bb9\u4e86\uff0c\u662f\u5426\u6709\u987a\u5229\u5e2e\u52a9\u4f60\u89e3\u51b3\u95ee\u9898\uff1f\u82e5\u662f\u80fd\u7ed9\u4f60\u5e26\u6765\u5b66\u4e60\u4e0a\u7684\u5e2e\u52a9\uff0c\u8bf7\u5927\u5bb6\u591a\u591a\u652f\u6301\u4e3b\u673a\u5b9d\u8d1d\uff01\u66f4\u591a\u5173\u4e8e\u6570\u636e\u5e93\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u4e5f\u53ef\u5173\u6ce8\u4e3b\u673a\u5b9d\u8d1d\u516c\u4f17\u53f7\u3002<\/p>\n
\n
\n <\/dt>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"
\u63a2\u7a76Oracle\u548cSQL\u7684\u7279\u70b9\uff1a...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-199919","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/199919","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"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=199919"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/199919\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=199919"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=199919"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=199919"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}