{"id":5196,"date":"2024-11-14T12:03:11","date_gmt":"2024-11-14T04:03:11","guid":{"rendered":"https:\/\/fwq.ai\/blog\/5196\/"},"modified":"2024-11-14T12:03:11","modified_gmt":"2024-11-14T04:03:11","slug":"getrows%e5%9c%a8sql%e4%b8%ad%e7%9a%84%e7%94%a8%e6%b3%95","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/5196\/","title":{"rendered":"getrows\u5728sql\u4e2d\u7684\u7528\u6cd5"},"content":{"rendered":"

\n getrows \u51fd\u6570\u7528\u4e8e\u83b7\u53d6 sql \u8bed\u53e5\u5f71\u54cd\u7684\u884c\u6570\u3002\u7528\u6cd5\uff1a\u5728 transact-sql \u8bed\u53e5\u4e2d\u4f7f\u7528\u3002\u53ef\u9009\u62e9\u6307\u5b9a\u6574\u6570\u8868\u8fbe\u5f0f\u4ee5\u8fd4\u56de\u7279\u5b9a\u884c\u6570\u3002\u901a\u5e38\u4e0e @@rowcount \u7cfb\u7edf\u51fd\u6570\u4e00\u8d77\u4f7f\u7528\uff0c\u7528\u4e8e\u8fd4\u56de\u524d\u4e00\u4e2a\u8bed\u53e5\u5f71\u54cd\u7684\u884c\u6570\u3002\n<\/p><\/blockquote>\n

\"getrows\u5728sql\u4e2d\u7684\u7528\u6cd5\u63d2\u56fe\"<\/p>\n

GETROWS \u5728 SQL \u4e2d\u7684\u7528\u6cd5<\/strong><\/p>\n

GETROWS \u51fd\u6570\u5728 SQL \u4e2d\u7528\u4e8e\u83b7\u53d6 INSERT\u3001UPDATE\u3001DELETE \u6216 MERGE \u8bed\u53e5\u5f71\u54cd\u7684\u884c\u6570\u3002<\/p>\n

\u8bed\u6cd5\uff1a<\/strong><\/p>\n

GETROWS([expression])<\/pre>\n
  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
    \n
  •  expression<\/strong>\uff08\u53ef\u9009\uff09\uff1a\u4e00\u4e2a\u6574\u6570\u8868\u8fbe\u5f0f\uff0c\u6307\u5b9a\u8981\u8fd4\u56de\u7684\u884c\u6570\u3002\u5982\u679c\u4e0d\u6307\u5b9a\uff0c\u5219\u8fd4\u56de\u6240\u6709\u53d7\u5f71\u54cd\u7684\u884c\u6570\u3002<\/li>\n<\/ul>\n
    \u7528\u6cd5\uff1a<\/strong><\/p>\n
    GETROWS \u51fd\u6570\u901a\u5e38\u4e0e @@ROWCOUNT \u7cfb\u7edf\u51fd\u6570\u4e00\u8d77\u4f7f\u7528\uff0c@@ROWCOUNT \u8fd4\u56de\u7531\u524d\u4e00\u4e2a\u6267\u884c\u7684 Transact-SQL \u8bed\u53e5\u5f71\u54cd\u7684\u884c\u6570\u3002\u4f8b\u5982\uff1a<\/p>\n
    -- \u5c06 10 \u884c\u6dfb\u52a0\u5230 \"Employees\" \u8868\nINSERT INTO Employees (EmployeeID, LastName, FirstName)\nVALUES (10, 'Doe', 'John')\n\n-- \u83b7\u53d6\u53d7\u5f71\u54cd\u7684\u884c\u6570\nDECLARE @rowsInserted INT\nSET @rowsInserted = @@ROWCOUNT<\/pre>\n
      \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
    \u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c@rowsInserted \u53d8\u91cf\u5c06\u5305\u542b\u7531 INSERT \u8bed\u53e5\u5f71\u54cd\u7684\u884c\u6570\uff0c\u5373 10\u3002<\/p>\n
    \u6ce8\u610f\u4e8b\u9879\uff1a<\/strong><\/p>\n
      \n
    • GETROWS \u51fd\u6570\u53ea\u80fd\u5728 Transact-SQL \u8bed\u53e5\u4e2d\u4f7f\u7528\u3002<\/li>\n
    • GETROWS \u51fd\u6570\u4ec5\u8fd4\u56de\u53d7\u5f71\u54cd\u7684\u884c\u6570\uff0c\u800c\u4e0d\u662f\u5b9e\u9645\u63d2\u5165\u3001\u66f4\u65b0\u6216\u5220\u9664\u7684\u6570\u636e\u3002<\/li>\n
    • \u5982\u679c\u8bed\u53e5\u4e0d\u5f71\u54cd\u4efb\u4f55\u884c\uff08\u4f8b\u5982\uff0c\u66f4\u65b0\u7a7a\u7684\u8868\uff09\uff0cGETROWS \u51fd\u6570\u8fd4\u56de 0\u3002<\/li>\n
    • \u5982\u679c\u8bed\u53e5\u4ea7\u751f\u9519\u8bef\uff0cGETROWS \u51fd\u6570\u8fd4\u56de -1\u3002<\/li>\n<\/ul>\n
      \u4ee5\u4e0a\u5c31\u662fgetrows\u5728sql\u4e2d\u7684\u7528\u6cd5\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":"
      getrows \u51fd\u6570\u7528\u4e8e\u83b7\u53d6 sql \u8bed\u53e5\u5f71\u54cd\u7684\u884c\u6570\u3002\u7528\u6cd5\uff1a\u5728 transact-sql \u8bed\u53e5\u4e2d\u4f7f\u7528\u3002\u53ef\u9009\u62e9\u6307\u5b9a\u6574\u6570\u8868\u8fbe\u5f0f\u4ee5\u8fd4\u56de\u7279\u5b9a\u884c\u6570\u3002\u901a\u5e38\u4e0e @@rowcount \u7cfb\u7edf\u51fd\u6570\u4e00\u8d77\u4f7f\u7528\uff0c\u7528\u4e8e\u8fd4\u56de\u524d\u4e00\u4e2a\u8bed\u53e5\u5f71\u54cd\u7684\u884c\u6570\u3002 GETROWS \u5728 SQL \u4e2d\u7684\u7528\u6cd5 GETROWS \u51fd\u6570\u5728 SQL \u4e2d\u7528\u4e8e\u83b7\u53d6 INSERT\u3001UPDATE\u3001DELETE \u6216 MERGE \u8bed\u53e5\u5f71\u54cd\u7684\u884c\u6570\u3002 \u8bed\u6cd5\uff1a GETROWS([expression]) \u767b\u5f55\u540e\u590d\u5236 expression\uff08\u53ef\u9009\uff09\uff1a\u4e00\u4e2a\u6574\u6570\u8868\u8fbe\u5f0f\uff0c\u6307\u5b9a\u8981\u8fd4\u56de\u7684\u884c\u6570\u3002\u5982\u679c\u4e0d\u6307\u5b9a\uff0c\u5219\u8fd4\u56de\u6240\u6709\u53d7\u5f71\u54cd\u7684\u884c\u6570\u3002 \u7528\u6cd5\uff1a GETROWS \u51fd\u6570\u901a\u5e38\u4e0e @@ROWCOUNT \u7cfb\u7edf\u51fd\u6570\u4e00\u8d77\u4f7f\u7528\uff0c@@ROWCOUNT \u8fd4\u56de\u7531\u524d\u4e00\u4e2a\u6267\u884c\u7684 Transact-SQL \u8bed\u53e5\u5f71\u54cd\u7684\u884c\u6570\u3002\u4f8b\u5982\uff1a — \u5c06 10 \u884c\u6dfb\u52a0\u5230 “Employees” \u8868 INSERT INTO Employees (EmployeeID, LastName, FirstName) VALUES (10, ‘Doe’, ‘John’) — \u83b7\u53d6\u53d7\u5f71\u54cd\u7684\u884c\u6570 DECLARE @rowsInserted INT SET @rowsInserted […]<\/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-5196","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5196","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=5196"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5196\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=5196"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=5196"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=5196"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}