{"id":1729,"date":"2025-02-16T09:02:19","date_gmt":"2025-02-16T01:02:19","guid":{"rendered":"https:\/\/www.laixuexila.com\/?p=1729"},"modified":"2025-02-16T09:02:19","modified_gmt":"2025-02-16T01:02:19","slug":"sql-having-%e5%ad%90%e5%8f%a5","status":"publish","type":"post","link":"https:\/\/www.laixuexila.com\/index.php\/2025\/02\/16\/sql-having-%e5%ad%90%e5%8f%a5\/","title":{"rendered":"SQL HAVING \u5b50\u53e5\u00a0"},"content":{"rendered":"\n

HAVING<\/code> \u5b50\u53e5\u662f SQL \u4e2d\u7528\u4e8e\u7b5b\u9009\u5206\u7ec4\u540e\u7684\u7ed3\u679c\u96c6\u7684\u4e00\u79cd\u65b9\u5f0f\u3002\u5b83\u5e38\u4e0e GROUP BY<\/code> \u4e00\u8d77\u4f7f\u7528\uff0c\u7528\u4e8e\u8fc7\u6ee4\u5206\u7ec4\u540e\u7684\u6570\u636e\u3002\u4e0e WHERE<\/code> \u5b50\u53e5\u4e0d\u540c\uff0cWHERE<\/code> \u7528\u4e8e\u8fc7\u6ee4\u884c\u6570\u636e\uff0c\u800c HAVING<\/code> \u7528\u4e8e\u8fc7\u6ee4\u805a\u5408\u51fd\u6570\uff08\u5982 COUNT()<\/code>\u3001SUM()<\/code>\u3001AVG()<\/code> \u7b49\uff09\u8ba1\u7b97\u540e\u7684\u7ed3\u679c\u3002<\/p>\n\n\n\n

1. HAVING<\/code> \u5b50\u53e5\u6982\u8ff0<\/strong><\/h3>\n\n\n\n
    \n
  • \u4f5c\u7528<\/strong>\uff1aHAVING<\/code> \u7528\u4e8e\u8fc7\u6ee4 GROUP BY<\/code> \u5206\u7ec4\u540e\u7684\u6570\u636e\uff0c\u901a\u5e38\u4e0e\u805a\u5408\u51fd\u6570\u7ed3\u5408\u4f7f\u7528\u3002<\/li>\n\n\n\n
  • \u8bed\u6cd5<\/strong>\uff1a<\/li>\n<\/ul>\n\n\n\n
      SELECT column1, column2, aggregate_function(column3)\n  FROM table_name\n  WHERE condition\n  GROUP BY column1, column2\n  HAVING aggregate_function(column3) condition;<\/code><\/pre>\n\n\n\n
      \n
    • column1, column2<\/code>\uff1a\u9700\u8981\u5206\u7ec4\u7684\u5217\u3002<\/li>\n\n\n\n
    • aggregate_function(column3)<\/code>\uff1a\u805a\u5408\u51fd\u6570\uff0c\u5982 SUM()<\/code>\u3001COUNT()<\/code>\u3001AVG()<\/code>\u3001MAX()<\/code>\u3001MIN()<\/code> \u7b49\u3002<\/li>\n\n\n\n
    • condition<\/code>\uff1a\u7528\u4e8e\u7b5b\u9009\u7684\u6761\u4ef6\u3002<\/li>\n<\/ul>\n\n\n\n
      2. HAVING<\/code> \u5b50\u53e5\u7684\u4f7f\u7528<\/strong><\/h3>\n\n\n\n
      HAVING<\/code> \u5b50\u53e5\u901a\u5e38\u4e0e GROUP BY<\/code> \u548c\u805a\u5408\u51fd\u6570\u4e00\u8d77\u4f7f\u7528\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u89c1\u7684\u5e94\u7528\u793a\u4f8b\u3002<\/p>\n\n\n\n
      2.1 \u4f7f\u7528 HAVING<\/code> \u8fc7\u6ee4\u5206\u7ec4\u7ed3\u679c<\/strong><\/h4>\n\n\n\n
      \u5047\u8bbe\u4f60\u6709\u4e00\u4e2a\u540d\u4e3a sales<\/code> \u7684\u8868\uff0c\u5305\u542b\u4ee5\u4e0b\u6570\u636e\uff1a<\/p>\n\n\n\n
      sale_id<\/th>product_id<\/th>quantity<\/th>price<\/th><\/tr><\/thead>
      1<\/td>101<\/td>10<\/td>5<\/td><\/tr>
      2<\/td>102<\/td>5<\/td>8<\/td><\/tr>
      3<\/td>101<\/td>7<\/td>5<\/td><\/tr>
      4<\/td>103<\/td>3<\/td>10<\/td><\/tr>
      5<\/td>102<\/td>12<\/td>8<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
      \u67e5\u8be2\u6bcf\u79cd\u4ea7\u54c1\u7684\u9500\u552e\u603b\u6570\u91cf\uff0c\u4f46\u4ec5\u8fd4\u56de\u9500\u552e\u603b\u6570\u91cf\u5927\u4e8e 10 \u7684\u4ea7\u54c1\uff1a<\/p>\n\n\n\n
      SELECT product_id, SUM(quantity) AS total_quantity\nFROM sales\nGROUP BY product_id\nHAVING SUM(quantity) > 10;<\/code><\/pre>\n\n\n\n
      \u67e5\u8be2\u7ed3\u679c<\/strong>\uff1a<\/p>\n\n\n\n
      product_id<\/th>total_quantity<\/th><\/tr><\/thead>
      101<\/td>17<\/td><\/tr>
      102<\/td>17<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
      2.2 \u7ed3\u5408 WHERE<\/code> \u548c HAVING<\/code> \u4f7f\u7528<\/strong><\/h4>\n\n\n\n
        \n
      • WHERE<\/code> \u7528\u4e8e\u8fc7\u6ee4\u539f\u59cb\u6570\u636e\uff08\u884c\u6570\u636e\uff09\uff0c\u5728 GROUP BY<\/code> \u4e4b\u524d\u6267\u884c\u3002<\/li>\n\n\n\n
      • HAVING<\/code> \u7528\u4e8e\u8fc7\u6ee4\u5206\u7ec4\u540e\u7684\u6570\u636e\uff0c\u5728 GROUP BY<\/code> \u4e4b\u540e\u6267\u884c\u3002<\/li>\n<\/ul>\n\n\n\n
        \u4f8b\u5982\uff0c\u67e5\u8be2\u9500\u552e\u6570\u91cf\u5927\u4e8e 5 \u4e14\u9500\u552e\u603b\u91d1\u989d\u5927\u4e8e 50 \u7684\u4ea7\u54c1\uff1a<\/p>\n\n\n\n
        SELECT product_id, SUM(quantity * price) AS total_sales\nFROM sales\nWHERE quantity > 5\nGROUP BY product_id\nHAVING SUM(quantity * price) > 50;<\/code><\/pre>\n\n\n\n
        \u67e5\u8be2\u7ed3\u679c<\/strong>\uff1a<\/p>\n\n\n\n
        product_id<\/th>total_sales<\/th><\/tr><\/thead>
        101<\/td>85<\/td><\/tr>
        102<\/td>136<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
        \u5728\u8fd9\u4e2a\u67e5\u8be2\u4e2d\uff0cWHERE<\/code> \u7b5b\u9009\u4e86\u6570\u91cf\u5927\u4e8e 5 \u7684\u8bb0\u5f55\uff0cHAVING<\/code> \u5bf9\u5206\u7ec4\u540e\u7684\u9500\u552e\u603b\u91d1\u989d\u8fdb\u884c\u4e86\u7b5b\u9009\u3002<\/p>\n\n\n\n
        2.3 \u4f7f\u7528 HAVING<\/code> \u8fdb\u884c\u591a\u4e2a\u6761\u4ef6\u8fc7\u6ee4<\/strong><\/h4>\n\n\n\n
        \u4f60\u53ef\u4ee5\u5728 HAVING<\/code> \u5b50\u53e5\u4e2d\u4f7f\u7528\u591a\u4e2a\u6761\u4ef6\u8fdb\u884c\u8fc7\u6ee4\u3002\u4f8b\u5982\uff0c\u67e5\u8be2\u9500\u552e\u603b\u6570\u91cf\u5927\u4e8e 10 \u4e14\u9500\u552e\u603b\u91d1\u989d\u5927\u4e8e 50 \u7684\u4ea7\u54c1\uff1a<\/p>\n\n\n\n
        SELECT product_id, SUM(quantity) AS total_quantity, SUM(quantity * price) AS total_sales\nFROM sales\nGROUP BY product_id\nHAVING SUM(quantity) > 10 AND SUM(quantity * price) > 50;<\/code><\/pre>\n\n\n\n
        \u67e5\u8be2\u7ed3\u679c<\/strong>\uff1a<\/p>\n\n\n\n
        product_id<\/th>total_quantity<\/th>total_sales<\/th><\/tr><\/thead>
        101<\/td>17<\/td>85<\/td><\/tr>
        102<\/td>17<\/td>136<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
        3. HAVING<\/code> \u5b50\u53e5\u7684\u5e38\u89c1\u95ee\u9898\u53ca\u89e3\u51b3\u65b9\u6848<\/strong><\/h3>\n\n\n\n
        1. HAVING<\/code> \u53ea\u80fd\u4e0e\u805a\u5408\u51fd\u6570\u4e00\u8d77\u4f7f\u7528<\/strong><\/h4>\n\n\n\n
          \n
        • \u95ee\u9898<\/strong>\uff1aHAVING<\/code> \u4ec5\u7528\u4e8e\u8fc7\u6ee4\u805a\u5408\u7ed3\u679c\uff0c\u800c\u4e0d\u80fd\u76f4\u63a5\u7528\u4e8e\u884c\u6570\u636e\u3002\u4f8b\u5982\uff0c\u4e0b\u9762\u7684\u67e5\u8be2\u4f1a\u629b\u51fa\u9519\u8bef\uff1a<\/li>\n<\/ul>\n\n\n\n
            SELECT product_id, SUM(quantity)\n  FROM sales\n  GROUP BY product_id\n  HAVING product_id = 101;<\/code><\/pre>\n\n\n\n
          \u9519\u8bef\u539f\u56e0<\/strong>\uff1aHAVING<\/code> \u5b50\u53e5\u4e0d\u80fd\u76f4\u63a5\u7528\u4e8e\u975e\u805a\u5408\u5217\uff0c\u5fc5\u987b\u4e0e\u805a\u5408\u51fd\u6570\u4e00\u8d77\u4f7f\u7528\u3002<\/p>\n\n\n\n
            \n
          • \u89e3\u51b3\u65b9\u6848<\/strong>\uff1a\u5982\u679c\u4f60\u9700\u8981\u5728 HAVING<\/code> \u5b50\u53e5\u4e2d\u5f15\u7528\u5217\uff0c\u786e\u4fdd\u8be5\u5217\u5df2\u901a\u8fc7\u805a\u5408\u51fd\u6570\u8fdb\u884c\u8ba1\u7b97\uff0c\u6216\u8005\u4f7f\u7528 WHERE<\/code> \u5b50\u53e5\u8fdb\u884c\u8fc7\u6ee4\uff1a<\/li>\n<\/ul>\n\n\n\n
              SELECT product_id, SUM(quantity)\n  FROM sales\n  WHERE product_id = 101\n  GROUP BY product_id;<\/code><\/pre>\n\n\n\n
            2. HAVING<\/code> \u8bed\u53e5\u4e0e WHERE<\/code> \u8bed\u53e5\u7684\u6df7\u6dc6<\/strong><\/h4>\n\n\n\n
              \n
            • \u95ee\u9898<\/strong>\uff1a\u8bb8\u591a\u521d\u5b66\u8005\u4f1a\u5c06 HAVING<\/code> \u7528\u4e8e\u884c\u7ea7\u7b5b\u9009\uff0c\u800c\u5b9e\u9645\u4e0a WHERE<\/code> \u66f4\u9002\u5408\u7528\u4e8e\u884c\u7ea7\u7b5b\u9009\uff0cHAVING<\/code> \u5e94\u7528\u4e8e\u805a\u5408\u540e\u7684\u6570\u636e\u3002<\/li>\n\n\n\n
            • \u89e3\u51b3\u65b9\u6848<\/strong>\uff1a\u786e\u4fdd\u5728 GROUP BY<\/code> \u4e4b\u524d\u4f7f\u7528 WHERE<\/code> \u6765\u7b5b\u9009\u884c\u6570\u636e\uff0cHAVING<\/code> \u4ec5\u7528\u4e8e\u7b5b\u9009\u805a\u5408\u7ed3\u679c\u3002 \u9519\u8bef\u7528\u6cd5<\/strong>\uff1a<\/li>\n<\/ul>\n\n\n\n
                SELECT product_id, SUM(quantity)\n  FROM sales\n  HAVING quantity > 5\n  GROUP BY product_id;<\/code><\/pre>\n\n\n\n
              \u6b63\u786e\u7528\u6cd5<\/strong>\uff1a<\/p>\n\n\n\n
                SELECT product_id, SUM(quantity)\n  FROM sales\n  WHERE quantity > 5\n  GROUP BY product_id;<\/code><\/pre>\n\n\n\n
              3. HAVING<\/code> \u6027\u80fd\u95ee\u9898<\/strong><\/h4>\n\n\n\n
                \n
              • \u95ee\u9898<\/strong>\uff1a\u5728\u5904\u7406\u975e\u5e38\u5927\u7684\u6570\u636e\u96c6\u65f6\uff0c\u4f7f\u7528 HAVING<\/code> \u53ef\u80fd\u4f1a\u5bfc\u81f4\u6027\u80fd\u95ee\u9898\uff0c\u7279\u522b\u662f\u5728\u6ca1\u6709\u9002\u5f53\u7d22\u5f15\u7684\u60c5\u51b5\u4e0b\u3002<\/li>\n\n\n\n
              • \u89e3\u51b3\u65b9\u6848<\/strong>\uff1a\u786e\u4fdd\u8868\u4e2d\u6709\u9002\u5f53\u7684\u7d22\u5f15\uff0c\u5c24\u5176\u662f\u7528\u4e8e GROUP BY<\/code> \u548c WHERE<\/code> \u5b50\u53e5\u7684\u5217\u3002\u6b64\u5916\uff0c\u5c3d\u91cf\u51cf\u5c11\u4e0d\u5fc5\u8981\u7684\u805a\u5408\uff0c\u907f\u514d\u5728 HAVING<\/code> \u4e2d\u8fdb\u884c\u590d\u6742\u7684\u8ba1\u7b97\u3002<\/li>\n<\/ul>\n\n\n\n
                4. HAVING<\/code> \u5b50\u53e5\u4e0e\u5176\u4ed6 SQL \u5b50\u53e5\u7684\u7ed3\u5408<\/strong><\/h3>\n\n\n\n
                4.1 \u4e0e ORDER BY<\/code> \u5b50\u53e5\u7ed3\u5408\u4f7f\u7528<\/strong><\/h4>\n\n\n\n
                \u4f60\u53ef\u4ee5\u5c06 ORDER BY<\/code> \u4e0e HAVING<\/code> \u7ed3\u5408\u4f7f\u7528\uff0c\u4ee5\u4fbf\u5bf9\u5206\u7ec4\u7ed3\u679c\u8fdb\u884c\u6392\u5e8f\u3002\u4f8b\u5982\uff0c\u67e5\u8be2\u6bcf\u4e2a\u4ea7\u54c1\u7684\u9500\u552e\u603b\u91d1\u989d\uff0c\u5e76\u4e14\u53ea\u8fd4\u56de\u9500\u552e\u603b\u91d1\u989d\u5927\u4e8e 50 \u7684\u4ea7\u54c1\uff0c\u6309\u9500\u552e\u603b\u91d1\u989d\u964d\u5e8f\u6392\u5e8f\uff1a<\/p>\n\n\n\n
                SELECT product_id, SUM(quantity * price) AS total_sales\nFROM sales\nGROUP BY product_id\nHAVING SUM(quantity * price) > 50\nORDER BY total_sales DESC;<\/code><\/pre>\n\n\n\n
                \u67e5\u8be2\u7ed3\u679c<\/strong>\uff1a<\/p>\n\n\n\n
                product_id<\/th>total_sales<\/th><\/tr><\/thead>
                102<\/td>136<\/td><\/tr>
                101<\/td>85<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
                4.2 \u4e0e LIMIT<\/code> \u5b50\u53e5\u7ed3\u5408\u4f7f\u7528<\/strong><\/h4>\n\n\n\n
                HAVING<\/code> \u4e5f\u53ef\u4ee5\u4e0e LIMIT<\/code> \u5b50\u53e5\u7ed3\u5408\u4f7f\u7528\uff0c\u6765\u9650\u5236\u8fd4\u56de\u7684\u7ed3\u679c\u3002\u4f8b\u5982\uff0c\u67e5\u8be2\u9500\u552e\u603b\u91d1\u989d\u5927\u4e8e 50 \u7684\u524d 2 \u4e2a\u4ea7\u54c1\uff1a<\/p>\n\n\n\n
                SELECT product_id, SUM(quantity * price) AS total_sales\nFROM sales\nGROUP BY product_id\nHAVING SUM(quantity * price) > 50\nORDER BY total_sales DESC\nLIMIT 2;<\/code><\/pre>\n\n\n\n
                \u67e5\u8be2\u7ed3\u679c<\/strong>\uff1a<\/p>\n\n\n\n
                product_id<\/th>total_sales<\/th><\/tr><\/thead>
                102<\/td>136<\/td><\/tr>
                101<\/td>85<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
                5. \u603b\u7ed3<\/strong><\/h3>\n\n\n\n
                  \n
                • HAVING<\/code> \u7528\u4e8e\u8fc7\u6ee4\u5206\u7ec4\u540e\u7684\u6570\u636e\uff0c\u901a\u5e38\u4e0e GROUP BY<\/code> \u548c\u805a\u5408\u51fd\u6570\u7ed3\u5408\u4f7f\u7528\u3002<\/li>\n\n\n\n
                • HAVING<\/code> \u53ef\u4ee5\u5bf9\u805a\u5408\u7ed3\u679c\u8fdb\u884c\u66f4\u590d\u6742\u7684\u7b5b\u9009\uff0c\u800c WHERE<\/code> \u5b50\u53e5\u5219\u7528\u4e8e\u5728\u5206\u7ec4\u4e4b\u524d\u7b5b\u9009\u884c\u6570\u636e\u3002<\/li>\n\n\n\n
                • \u786e\u4fdd\u5728\u4f7f\u7528 HAVING<\/code> \u65f6\uff0c\u5b83\u7528\u4e8e\u5904\u7406\u805a\u5408\u51fd\u6570\u7684\u7ed3\u679c\uff0c\u800c WHERE<\/code> \u7528\u4e8e\u884c\u7ea7\u6570\u636e\u7684\u7b5b\u9009\u3002<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"
                  HAVING \u5b50\u53e5\u662f SQL \u4e2d\u7528\u4e8e\u7b5b\u9009\u5206\u7ec4\u540e\u7684\u7ed3\u679c\u96c6\u7684\u4e00\u79cd\u65b9\u5f0f\u3002\u5b83\u5e38\u4e0e GROUP BY \u4e00\u8d77\u4f7f\u7528\uff0c\u7528\u4e8e\u8fc7\u6ee4 […]<\/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-1729","post","type-post","status-publish","format-standard","hentry","category-sql"],"_links":{"self":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/1729","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=1729"}],"version-history":[{"count":1,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/1729\/revisions"}],"predecessor-version":[{"id":1730,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/1729\/revisions\/1730"}],"wp:attachment":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/media?parent=1729"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/categories?post=1729"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/tags?post=1729"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}