{"id":1508,"date":"2025-02-10T23:33:24","date_gmt":"2025-02-10T15:33:24","guid":{"rendered":"https:\/\/www.laixuexila.com\/?p=1508"},"modified":"2025-02-10T23:33:25","modified_gmt":"2025-02-10T15:33:25","slug":"%e6%b7%b1%e5%85%a5%e4%ba%86%e8%a7%a3sql%e6%95%b0%e6%8d%ae%e6%93%8d%e4%bd%9c%ef%bc%9a%e6%8f%92%e5%85%a5%e3%80%81%e6%9b%b4%e6%96%b0%e4%b8%8e%e5%88%a0%e9%99%a4%e6%95%b0%e6%8d%ae%e7%9a%84%e6%8a%80","status":"publish","type":"post","link":"https:\/\/www.laixuexila.com\/index.php\/2025\/02\/10\/%e6%b7%b1%e5%85%a5%e4%ba%86%e8%a7%a3sql%e6%95%b0%e6%8d%ae%e6%93%8d%e4%bd%9c%ef%bc%9a%e6%8f%92%e5%85%a5%e3%80%81%e6%9b%b4%e6%96%b0%e4%b8%8e%e5%88%a0%e9%99%a4%e6%95%b0%e6%8d%ae%e7%9a%84%e6%8a%80\/","title":{"rendered":"\u6df1\u5165\u4e86\u89e3SQL\u6570\u636e\u64cd\u4f5c\uff1a\u63d2\u5165\u3001\u66f4\u65b0\u4e0e\u5220\u9664\u6570\u636e\u7684\u6280\u5de7"},"content":{"rendered":"\n

1. \u63d2\u5165\u6570\u636e<\/strong><\/h3>\n\n\n\n

1.1 INSERT INTO<\/code> \u8bed\u53e5<\/h4>\n\n\n\n

INSERT INTO<\/code> \u8bed\u53e5\u7528\u4e8e\u5411\u6570\u636e\u5e93\u8868\u4e2d\u63d2\u5165\u6570\u636e\u3002\u4f60\u53ef\u4ee5\u63d2\u5165\u5355\u6761\u6570\u636e\u6216\u591a\u6761\u6570\u636e\u3002<\/p>\n\n\n\n

    \n
  • \u63d2\u5165\u5355\u6761\u6570\u636e\uff1a<\/li>\n<\/ul>\n\n\n\n
    INSERT INTO users (id, name, age, birth_date) \nVALUES (1, 'Alice', 30, '1990-01-01');<\/code><\/pre>\n\n\n\n
    \u4e0a\u8ff0\u8bed\u53e5\u5c06\u4e00\u6761\u8bb0\u5f55\u63d2\u5165\u5230 users<\/code> \u8868\u4e2d\uff0c\u5305\u542b id<\/code>\u3001name<\/code>\u3001age<\/code> \u548c birth_date<\/code> \u5b57\u6bb5\u3002<\/p>\n\n\n\n
      \n
    • \u63d2\u5165\u591a\u6761\u6570\u636e\uff1a<\/li>\n<\/ul>\n\n\n\n
      INSERT INTO users (id, name, age, birth_date) \nVALUES \n(2, 'Bob', 25, '1995-03-15'),\n(3, 'Charlie', 28, '1992-07-20'),\n(4, 'David', 35, '1985-11-10');<\/code><\/pre>\n\n\n\n
      \u6b64\u8bed\u53e5\u4e00\u6b21\u63d2\u5165\u591a\u6761\u6570\u636e\uff0c\u6bcf\u4e2a\u62ec\u53f7\u4e2d\u7684\u503c\u8868\u793a\u4e00\u6761\u8bb0\u5f55\u3002<\/p>\n\n\n\n
      1.2 \u6279\u91cf\u63d2\u5165\u6570\u636e<\/h4>\n\n\n\n
      \u5982\u679c\u4f60\u6709\u5927\u91cf\u6570\u636e\u9700\u8981\u63d2\u5165\uff0c\u53ef\u4ee5\u901a\u8fc7\u7f16\u5199\u6279\u91cf INSERT<\/code> \u8bed\u53e5\u8fdb\u884c\u6279\u91cf\u63d2\u5165\uff0c\u907f\u514d\u4e00\u6b21\u63d2\u5165\u5927\u91cf\u5355\u6761\u6570\u636e\uff0c\u63d0\u9ad8\u6027\u80fd\u3002<\/p>\n\n\n\n
      \u4f8b\u5982\uff0c\u6279\u91cf\u63d2\u5165\u591a\u6761\u8bb0\u5f55\u65f6\uff0c\u4f7f\u7528\u9017\u53f7\u5206\u9694\u5404\u4e2a\u63d2\u5165\u6570\u636e\u9879\uff1a<\/p>\n\n\n\n
      INSERT INTO users (id, name, age, birth_date)\nVALUES\n(5, 'Eva', 22, '1998-05-22'),\n(6, 'Frank', 40, '1980-08-14'),\n(7, 'Grace', 29, '1991-02-28');<\/code><\/pre>\n\n\n\n
      2. \u66f4\u65b0\u6570\u636e<\/strong><\/h3>\n\n\n\n
      2.1 UPDATE<\/code> \u8bed\u53e5<\/h4>\n\n\n\n
      UPDATE<\/code> \u8bed\u53e5\u7528\u4e8e\u66f4\u65b0\u8868\u4e2d\u5df2\u6709\u7684\u6570\u636e\u3002\u4f60\u53ef\u4ee5\u66f4\u65b0\u4e00\u4e2a\u6216\u591a\u4e2a\u5217\u7684\u503c\u3002<\/p>\n\n\n\n
        \n
      • \u66f4\u65b0\u5355\u4e2a\u5217\uff1a<\/li>\n<\/ul>\n\n\n\n
        UPDATE users \nSET age = 31 \nWHERE id = 1;<\/code><\/pre>\n\n\n\n
        \u8fd9\u6761\u8bed\u53e5\u4f1a\u5c06 id<\/code> \u4e3a 1 \u7684\u7528\u6237\u7684\u5e74\u9f84\u66f4\u65b0\u4e3a 31\u3002<\/p>\n\n\n\n
          \n
        • \u66f4\u65b0\u591a\u4e2a\u5217\uff1a<\/li>\n<\/ul>\n\n\n\n
          UPDATE users \nSET name = 'Alice Smith', age = 32 \nWHERE id = 1;<\/code><\/pre>\n\n\n\n
          \u8fd9\u4f1a\u540c\u65f6\u66f4\u65b0 id<\/code> \u4e3a 1 \u7684\u7528\u6237\u7684 name<\/code> \u548c age<\/code> \u5b57\u6bb5\u3002<\/p>\n\n\n\n
          2.2 \u4f7f\u7528 WHERE<\/code> \u66f4\u65b0\u7279\u5b9a\u884c<\/h4>\n\n\n\n
          WHERE<\/code> \u5b50\u53e5\u975e\u5e38\u91cd\u8981\uff0c\u56e0\u4e3a\u5b83\u9650\u5236\u4e86\u66f4\u65b0\u7684\u8303\u56f4\u3002\u5982\u679c\u6ca1\u6709\u4f7f\u7528 WHERE<\/code>\uff0cUPDATE<\/code> \u4f1a\u5f71\u54cd\u8868\u4e2d\u7684\u6240\u6709\u8bb0\u5f55\u3002<\/p>\n\n\n\n
            \n
          • \u66f4\u65b0\u7279\u5b9a\u884c\uff1a<\/li>\n<\/ul>\n\n\n\n
            UPDATE users \nSET age = age + 1 \nWHERE name = 'Alice';<\/code><\/pre>\n\n\n\n
            \u8fd9\u6761\u8bed\u53e5\u4f1a\u5c06\u6240\u6709\u540d\u5b57\u4e3a “Alice” \u7684\u7528\u6237\u7684\u5e74\u9f84\u589e\u52a0 1\u3002<\/p>\n\n\n\n
            \n
            \u6ce8\u610f<\/strong>: \u5728\u6267\u884c UPDATE<\/code> \u8bed\u53e5\u65f6\uff0c\u8981\u7279\u522b\u5c0f\u5fc3\uff0c\u5982\u679c\u6ca1\u6709 WHERE<\/code> \u5b50\u53e5\uff0c\u6240\u6709\u884c\u90fd\u4f1a\u88ab\u66f4\u65b0\uff01<\/p>\n<\/blockquote>\n\n\n\n
            3. \u5220\u9664\u6570\u636e<\/strong><\/h3>\n\n\n\n
            3.1 DELETE<\/code> \u8bed\u53e5<\/h4>\n\n\n\n
            DELETE<\/code> \u8bed\u53e5\u7528\u4e8e\u4ece\u8868\u4e2d\u5220\u9664\u6570\u636e\u3002\u540c\u6837\uff0cDELETE<\/code> \u8bed\u53e5\u4e5f\u53ef\u4ee5\u901a\u8fc7 WHERE<\/code> \u9650\u5236\u5220\u9664\u8303\u56f4\u3002<\/p>\n\n\n\n
              \n
            • \u5220\u9664\u7279\u5b9a\u884c\uff1a<\/li>\n<\/ul>\n\n\n\n
              DELETE FROM users WHERE id = 1;<\/code><\/pre>\n\n\n\n
              \u8fd9\u4f1a\u5220\u9664 id<\/code> \u4e3a 1 \u7684\u7528\u6237\u8bb0\u5f55\u3002<\/p>\n\n\n\n
                \n
              • \u5220\u9664\u6240\u6709\u8bb0\u5f55\uff1a<\/li>\n<\/ul>\n\n\n\n
                DELETE FROM users;<\/code><\/pre>\n\n\n\n
                \u8fd9\u6761\u8bed\u53e5\u4f1a\u5220\u9664 users<\/code> \u8868\u4e2d\u7684\u6240\u6709\u6570\u636e\uff0c\u4f46\u8868\u7ed3\u6784\u4ecd\u7136\u4fdd\u7559\u3002\u5982\u679c\u4f60\u4e0d\u60f3\u5220\u9664\u8868\u4e2d\u7684\u6240\u6709\u6570\u636e\uff0c\u53ef\u4ee5\u8003\u8651\u4f7f\u7528 TRUNCATE<\/code> \u8bed\u53e5\uff0c\u5b83\u4f1a\u6e05\u7a7a\u8868\u5e76\u91cd\u7f6e\u81ea\u589e\u5b57\u6bb5\u3002<\/p>\n\n\n\n
                3.2 \u4f7f\u7528 WHERE<\/code> \u5220\u9664\u7279\u5b9a\u884c<\/h4>\n\n\n\n
                \u4e0e UPDATE<\/code> \u7c7b\u4f3c\uff0cDELETE<\/code> \u8bed\u53e5\u6ca1\u6709 WHERE<\/code> \u5b50\u53e5\u65f6\u4f1a\u5220\u9664\u6240\u6709\u6570\u636e\u3002\u786e\u4fdd\u4f60\u4f7f\u7528 WHERE<\/code> \u5b50\u53e5\u6765\u9650\u5236\u5220\u9664\u64cd\u4f5c\u3002<\/p>\n\n\n\n
                  \n
                • \u5220\u9664\u540d\u5b57\u4e3a “Alice” \u7684\u7528\u6237\uff1a<\/li>\n<\/ul>\n\n\n\n
                  DELETE FROM users WHERE name = 'Alice';<\/code><\/pre>\n\n\n\n
                  \u8fd9\u6761\u8bed\u53e5\u4f1a\u5220\u9664\u6240\u6709\u540d\u5b57\u4e3a “Alice” \u7684\u7528\u6237\u3002<\/p>\n\n\n\n
                  4. \u4e8b\u52a1\u7ba1\u7406<\/strong><\/h3>\n\n\n\n
                  \u4e8b\u52a1\uff08Transaction\uff09\u662f\u6307\u4e00\u7ec4\u64cd\u4f5c\uff0c\u8981\u4e48\u5168\u90e8\u6267\u884c\u6210\u529f\uff0c\u8981\u4e48\u5168\u90e8\u5931\u8d25\u56de\u6eda\u3002\u4e8b\u52a1\u7528\u4e8e\u786e\u4fdd\u6570\u636e\u5e93\u7684\u64cd\u4f5c\u8981\u4e48\u4e00\u81f4\u3001\u8981\u4e48\u4e0d\u6267\u884c\uff0c\u4ee5\u4fdd\u6301\u6570\u636e\u7684\u5b8c\u6574\u6027\u3002<\/p>\n\n\n\n
                  4.1 \u4f7f\u7528 COMMIT<\/code> \u548c ROLLBACK<\/code><\/h4>\n\n\n\n
                    \n
                  • COMMIT<\/strong>\uff1a\u63d0\u4ea4\u4e8b\u52a1\u3002COMMIT<\/code> \u4f1a\u4fdd\u5b58\u6240\u6709\u64cd\u4f5c\uff0c\u5bf9\u6570\u636e\u5e93\u8fdb\u884c\u6c38\u4e45\u66f4\u6539\u3002<\/li>\n<\/ul>\n\n\n\n
                    BEGIN TRANSACTION;\n\nUPDATE users SET age = 30 WHERE id = 1;\nINSERT INTO users (id, name, age, birth_date) VALUES (5, 'Eva', 22, '1998-05-22');\n\nCOMMIT;<\/code><\/pre>\n\n\n\n
                      \n
                    • ROLLBACK<\/strong>\uff1a\u56de\u6eda\u4e8b\u52a1\u3002\u5982\u679c\u4e8b\u52a1\u8fc7\u7a0b\u4e2d\u53d1\u751f\u9519\u8bef\uff0c\u53ef\u4ee5\u4f7f\u7528 ROLLBACK<\/code> \u6765\u64a4\u9500\u6240\u6709\u5df2\u6267\u884c\u7684\u64cd\u4f5c\u3002<\/li>\n<\/ul>\n\n\n\n
                      BEGIN TRANSACTION;\n\nUPDATE users SET age = 30 WHERE id = 1;\n\n-- \u53d1\u751f\u9519\u8bef\uff0c\u56de\u6eda\u4e8b\u52a1\nROLLBACK;<\/code><\/pre>\n\n\n\n
                      \u4f7f\u7528\u4e8b\u52a1\u53ef\u4ee5\u786e\u4fdd\u6570\u636e\u64cd\u4f5c\u7684\u539f\u5b50\u6027\uff0c\u4e00\u65e6\u53d1\u751f\u9519\u8bef\uff0c\u53ef\u4ee5\u5c06\u4e8b\u52a1\u56de\u6eda\u5230\u6267\u884c\u524d\u7684\u72b6\u6001\u3002<\/p>\n\n\n\n
                      4.2 \u4e8b\u52a1\u9694\u79bb\u7ea7\u522b<\/h4>\n\n\n\n
                      \u4e8b\u52a1\u9694\u79bb\u7ea7\u522b\u51b3\u5b9a\u4e86\u4e8b\u52a1\u5982\u4f55\u4e0e\u5176\u4ed6\u4e8b\u52a1\u4ea4\u4e92\u3002SQL \u6807\u51c6\u5b9a\u4e49\u4e86\u56db\u4e2a\u9694\u79bb\u7ea7\u522b\uff0c\u5206\u522b\u662f\uff1a<\/p>\n\n\n\n
                        \n
                      1. READ UNCOMMITTED<\/strong>\uff1a\u6700\u4f4e\u9694\u79bb\u7ea7\u522b\uff0c\u4e8b\u52a1\u53ef\u4ee5\u8bfb\u53d6\u5176\u4ed6\u4e8b\u52a1\u5c1a\u672a\u63d0\u4ea4\u7684\u6570\u636e\u3002\u53ef\u80fd\u4f1a\u5bfc\u81f4\u810f\u8bfb\u3002<\/li>\n\n\n\n
                      2. READ COMMITTED<\/strong>\uff1a\u4e8b\u52a1\u53ea\u80fd\u8bfb\u53d6\u5df2\u63d0\u4ea4\u7684\u6570\u636e\uff0c\u907f\u514d\u4e86\u810f\u8bfb\u3002<\/li>\n\n\n\n
                      3. REPEATABLE READ<\/strong>\uff1a\u4fdd\u8bc1\u5728\u4e8b\u52a1\u671f\u95f4\u8bfb\u53d6\u7684\u6570\u636e\u4e0d\u4f1a\u88ab\u5176\u4ed6\u4e8b\u52a1\u4fee\u6539\uff0c\u907f\u514d\u4e86\u810f\u8bfb\u548c\u4e0d\u53ef\u91cd\u590d\u8bfb\u3002<\/li>\n\n\n\n
                      4. SERIALIZABLE<\/strong>\uff1a\u6700\u9ad8\u9694\u79bb\u7ea7\u522b\uff0c\u4e8b\u52a1\u5b8c\u5168\u9694\u79bb\uff0c\u907f\u514d\u810f\u8bfb\u3001\u4e0d\u53ef\u91cd\u590d\u8bfb\u548c\u5e7b\u8bfb\u3002<\/li>\n<\/ol>\n\n\n\n
                        \u793a\u4f8b\uff1a\u8bbe\u7f6e\u4e8b\u52a1\u9694\u79bb\u7ea7\u522b<\/p>\n\n\n\n
                        SET TRANSACTION ISOLATION LEVEL SERIALIZABLE;\n\nBEGIN TRANSACTION;\n-- \u6267\u884c\u67e5\u8be2\u548c\u64cd\u4f5c\nCOMMIT;<\/code><\/pre>\n\n\n\n
                        \u4e0d\u540c\u7684\u9694\u79bb\u7ea7\u522b\u5bf9\u5e76\u53d1\u6027\u80fd\u548c\u6570\u636e\u4e00\u81f4\u6027\u6709\u4e0d\u540c\u7684\u5f71\u54cd\u3002READ UNCOMMITTED<\/code> \u63d0\u4f9b\u6700\u4f4e\u7684\u9694\u79bb\u6027\u548c\u6700\u5927\u5e76\u53d1\u6027\uff0c\u800c SERIALIZABLE<\/code> \u63d0\u4f9b\u6700\u9ad8\u7684\u9694\u79bb\u6027\uff0c\u4f46\u4f1a\u663e\u8457\u964d\u4f4e\u5e76\u53d1\u6027\u3002<\/p>\n\n\n\n
                        \n\n\n\n
                        \u603b\u7ed3<\/strong><\/h3>\n\n\n\n
                        \u901a\u8fc7\u672c\u90e8\u5206\u6559\u7a0b\uff0c\u4f60\u5df2\u7ecf\u638c\u63e1\u4e86 SQL \u6570\u636e\u64cd\u4f5c\u7684\u6838\u5fc3\u6280\u80fd\uff0c\u5305\u62ec\u5982\u4f55\u4f7f\u7528 INSERT INTO<\/code> \u63d2\u5165\u6570\u636e\u3001\u5982\u4f55\u4f7f\u7528 UPDATE<\/code> \u66f4\u65b0\u6570\u636e\u3001\u5982\u4f55\u4f7f\u7528 DELETE<\/code> \u5220\u9664\u6570\u636e\u4ee5\u53ca\u5982\u4f55\u7ba1\u7406\u6570\u636e\u5e93\u4e8b\u52a1\u3002\u4e8b\u52a1\u7ba1\u7406\u4e3a\u6570\u636e\u5e93\u64cd\u4f5c\u63d0\u4f9b\u4e86\u4fdd\u8bc1\u6570\u636e\u4e00\u81f4\u6027\u548c\u53ef\u9760\u6027\u7684\u673a\u5236\uff0c\u5c24\u5176\u5728\u590d\u6742\u7684\u591a\u6b65\u64cd\u4f5c\u4e2d\uff0c\u4e8b\u52a1\u7684\u4f7f\u7528\u81f3\u5173\u91cd\u8981\u3002\u638c\u63e1\u8fd9\u4e9b\u6280\u5de7\u5c06\u5e2e\u52a9\u4f60\u66f4\u6709\u6548\u5730\u64cd\u4f5c\u548c\u7ba1\u7406\u6570\u636e\u5e93\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
                        1. \u63d2\u5165\u6570\u636e 1.1 INSERT INTO \u8bed\u53e5 INSERT INTO \u8bed\u53e5\u7528\u4e8e\u5411\u6570\u636e\u5e93\u8868\u4e2d\u63d2\u5165\u6570\u636e\u3002\u4f60 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[36],"tags":[],"class_list":["post-1508","post","type-post","status-publish","format-standard","hentry","category-sql"],"_links":{"self":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/1508","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/comments?post=1508"}],"version-history":[{"count":1,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/1508\/revisions"}],"predecessor-version":[{"id":1509,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/1508\/revisions\/1509"}],"wp:attachment":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/media?parent=1508"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/categories?post=1508"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/tags?post=1508"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}