{"id":5928,"date":"2024-11-14T08:48:48","date_gmt":"2024-11-14T00:48:48","guid":{"rendered":"https:\/\/fwq.ai\/blog\/5928\/"},"modified":"2024-11-14T08:48:48","modified_gmt":"2024-11-14T00:48:48","slug":"sql%e7%9a%84%e5%88%a0%e9%99%a4%e8%af%ad%e5%8f%a5%e6%80%8e%e4%b9%88%e5%86%99","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/5928\/","title":{"rendered":"sql\u7684\u5220\u9664\u8bed\u53e5\u600e\u4e48\u5199"},"content":{"rendered":"

\n sql \u7684\u5220\u9664\u8bed\u53e5\u662f delete from\uff0c\u7528\u4e8e\u4ece\u6307\u5b9a\u8868\u4e2d\u5220\u9664\u884c\u3002\u8bed\u6cd5\u4e3a\uff1adelete from table_name where condition\u3002condition \u662f\u4e00\u4e2a\u53ef\u9009\u6761\u4ef6\uff0c\u7528\u4e8e\u6307\u5b9a\u8981\u5220\u9664\u7684\u884c\u3002\u5982\u679c\u4e0d\u6307\u5b9a\u6761\u4ef6\uff0c\u5219\u5220\u9664\u6240\u6709\u884c\u3002\u793a\u4f8b\uff1adelete from customers where customer_id = 2; \u5220\u9664 customer_id \u4e3a 2 \u7684\u884c\u3002\n<\/p><\/blockquote>\n

\"sql\u7684\u5220\u9664\u8bed\u53e5\u600e\u4e48\u5199\u63d2\u56fe\"<\/p>\n

SQL \u5220\u9664\u8bed\u53e5<\/strong><\/p>\n

SQL \u4e2d\u7528\u4e8e\u5220\u9664\u6570\u636e\u7684\u8bed\u53e5\u662f DELETE FROM\u3002\u5b83\u4ee5\u5220\u9664\u6307\u5b9a\u8868\u4e2d\u7684\u7279\u5b9a\u884c\u7684\u5f62\u5f0f\u5de5\u4f5c\u3002<\/p>\n

\u57fa\u672c\u8bed\u6cd5\uff1a<\/strong><\/p>\n

DELETE FROM table_name\nWHERE condition;<\/pre>\n
  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
\u5176\u4e2d\uff1a<\/p>\n
    \n
  • table_name \u662f\u8981\u4ece\u4e2d\u5220\u9664\u884c\u7684\u8868\u540d\u3002<\/li>\n
  • condition \u662f\u4e00\u4e2a\u53ef\u9009\u7684\u6761\u4ef6\uff0c\u7528\u4e8e\u6307\u5b9a\u8981\u5220\u9664\u54ea\u4e9b\u884c\u3002\u5982\u679c\u6ca1\u6709\u6307\u5b9a\u6761\u4ef6\uff0c\u5219\u8868\u4e2d\u7684\u6240\u6709\u884c\u90fd\u5c06\u88ab\u5220\u9664\u3002<\/li>\n<\/ul>\n
    \u7528\u6cd5\uff1a<\/strong><\/p>\n
    \u5220\u9664\u8868\u4e2d\u7684\u6240\u6709\u884c\uff1a<\/strong><\/p>\n
    DELETE FROM table_name;<\/pre>\n
      \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
    \u5220\u9664\u7b26\u5408\u7279\u5b9a\u6761\u4ef6\u7684\u884c\uff1a<\/strong><\/p>\n
    DELETE FROM table_name\nWHERE column_name = 'value';<\/pre>\n
      \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
    \u793a\u4f8b\uff1a<\/strong><\/p>\n
    \u5047\u8bbe\u6709\u4ee5\u4e0b\u8868 customers\uff1a<\/p>\n
    | customer_id | customer_name |\n|-------------|---------------|\n| 1           | John Doe      |\n| 2           | Jane Smith    |\n| 3           | David Wilson  |<\/pre>\n
      \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
    \u5220\u9664\u6307\u5b9a customer_id \u7684\u884c\uff1a<\/strong><\/p>\n
    DELETE FROM customers\nWHERE customer_id = 2;<\/pre>\n
      \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
    \u5220\u9664\u6240\u6709 customer_name \u4ee5 “J” \u5f00\u5934\u7684\u884c\uff1a<\/strong><\/p>\n
    DELETE FROM customers\nWHERE customer_name LIKE 'J%';<\/pre>\n
      \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
    \u4ee5\u4e0a\u5c31\u662fsql\u7684\u5220\u9664\u8bed\u53e5\u600e\u4e48\u5199\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":"
    sql \u7684\u5220\u9664\u8bed\u53e5\u662f delete from\uff0c\u7528\u4e8e\u4ece\u6307\u5b9a\u8868\u4e2d\u5220\u9664\u884c\u3002\u8bed\u6cd5\u4e3a\uff1adelete from table_name where condition\u3002condition \u662f\u4e00\u4e2a\u53ef\u9009\u6761\u4ef6\uff0c\u7528\u4e8e\u6307\u5b9a\u8981\u5220\u9664\u7684\u884c\u3002\u5982\u679c\u4e0d\u6307\u5b9a\u6761\u4ef6\uff0c\u5219\u5220\u9664\u6240\u6709\u884c\u3002\u793a\u4f8b\uff1adelete from customers where customer_id = 2; \u5220\u9664 customer_id \u4e3a 2 \u7684\u884c\u3002 SQL \u5220\u9664\u8bed\u53e5 SQL \u4e2d\u7528\u4e8e\u5220\u9664\u6570\u636e\u7684\u8bed\u53e5\u662f DELETE FROM\u3002\u5b83\u4ee5\u5220\u9664\u6307\u5b9a\u8868\u4e2d\u7684\u7279\u5b9a\u884c\u7684\u5f62\u5f0f\u5de5\u4f5c\u3002 \u57fa\u672c\u8bed\u6cd5\uff1a DELETE FROM table_name WHERE condition; \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d\uff1a table_name \u662f\u8981\u4ece\u4e2d\u5220\u9664\u884c\u7684\u8868\u540d\u3002 condition \u662f\u4e00\u4e2a\u53ef\u9009\u7684\u6761\u4ef6\uff0c\u7528\u4e8e\u6307\u5b9a\u8981\u5220\u9664\u54ea\u4e9b\u884c\u3002\u5982\u679c\u6ca1\u6709\u6307\u5b9a\u6761\u4ef6\uff0c\u5219\u8868\u4e2d\u7684\u6240\u6709\u884c\u90fd\u5c06\u88ab\u5220\u9664\u3002 \u7528\u6cd5\uff1a \u5220\u9664\u8868\u4e2d\u7684\u6240\u6709\u884c\uff1a DELETE FROM table_name; \u767b\u5f55\u540e\u590d\u5236 \u5220\u9664\u7b26\u5408\u7279\u5b9a\u6761\u4ef6\u7684\u884c\uff1a DELETE FROM table_name WHERE column_name = ‘value’; \u767b\u5f55\u540e\u590d\u5236 \u793a\u4f8b\uff1a \u5047\u8bbe\u6709\u4ee5\u4e0b\u8868 […]<\/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-5928","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5928","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=5928"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5928\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=5928"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=5928"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=5928"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}