{"id":10177,"date":"2023-08-29T10:55:07","date_gmt":"2023-08-29T02:55:07","guid":{"rendered":"https:\/\/nj.transwarp.cn:8180\/?p=10177"},"modified":"2023-08-29T10:55:06","modified_gmt":"2023-08-29T02:55:06","slug":"kundb%e5%a6%82%e4%bd%95%e5%9c%a8%e5%91%bd%e4%bb%a4%e8%a1%8c%e4%b8%8b%e5%88%9b%e5%bb%ba%e5%ad%98%e5%82%a8%e8%bf%87%e7%a8%8b%e6%88%96%e8%80%85%e5%87%bd%e6%95%b0","status":"publish","type":"post","link":"https:\/\/kbwp.transwarp.cn\/?p=10177","title":{"rendered":"kundb\u5982\u4f55\u5728\u547d\u4ee4\u884c\u4e0b\u521b\u5efa\u5b58\u50a8\u8fc7\u7a0b\u6216\u8005\u51fd\u6570"},"content":{"rendered":"

\u6982\u8981\u63cf\u8ff0<\/h3>\n
\n

\u672c\u6587\u4e3b\u8981\u4ecb\u7ecd\uff0ckundb\u5982\u4f55\u901a\u8fc7\u8bbe\u7f6eDELIMITER\u5206\u9694\u7b26\uff0c\u5728\u540e\u53f0\u547d\u4ee4\u884c\u6267\u884cfunction\u6216\u8005procedure\u3002<\/p>\n

\u8be6\u7ec6\u4ecb\u7ecd<\/h3>\n
\n

1\u3001\u4f7f\u7528\u8bf4\u660e<\/h4>\n
# \u8fd9\u91cc\u6211\u4eec\u8bbe\u7f6e\u5206\u9694\u7b26\u4e3a\/\/\nMySQL [(none)]> DELIMITER \/\/\n# \u5728\u4e0b\u9762\u7684\u8bed\u53e5\u5757\u4e2d\uff0c\u6700\u540e\u7684end;\u540e\u9762\u4f7f\u7528\/\/ \u4f5c\u4e3a\u7ed3\u675f\u7b26\u53f7\nMySQL [(none)]> create function db1.f_convert_timer_to_utc(pi_timer bigint) returns timestamp(6)\n    -> DETERMINISTIC\n    -> begin\n    ->     declare value_utc_time timestamp(6);\n    ->     select FROM_UNIXTIME( (unix_timestamp(sysdate()) - variable_value) + pi_timer\/1000000000000 )  from performance_schema.global_status where variable_name = 'Uptime' into value_utc_time;\n    ->     return value_utc_time;\n    -> end;\/\/\nQuery OK, 0 rows affected (0.02 sec)\n# \u8f93\u5165\u4e0b\u9762\u7684\u547d\u4ee4\u5373\u53ef\u6062\u590d\u4e3a\u9ed8\u8ba4\u7684\u5206\u9694\u7b26\nMySQL [(none)]> DELIMITER ;<\/code><\/pre>\n
\"file\"<\/p>\n
2\u3001\u8be6\u7ec6\u4ecb\u7ecd\uff1a<\/h4>\n
\u5728KUNDB\u4e2d\uff0cDELIMITER \u8bed\u53e5\u7528\u4e8e\u6539\u53d8SQL\u8bed\u53e5\u7684\u5206\u9694\u7b26\u3002
\n\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0cKUNDB\u5c06;<\/code> (\u5206\u53f7)\u4f5c\u4e3a\u4e00\u6761\u8bed\u53e5\u7684\u7ed3\u675f\u7b26\u548c\u5206\u9694\u7b26\u3002\u8fd9\u610f\u5473\u7740\uff0cKUNDB\u4f1a\u5c06 ‘;’ \u4e4b\u524d\u7684\u6240\u6709\u5185\u5bb9\u4f5c\u4e3a\u4e00\u6761\u5b8c\u6574\u7684SQL\u8bed\u53e5\u6267\u884c\u3002
\n\u4f46\u662f,\u6709\u4e9b\u60c5\u51b5\u4e0b\u6211\u4eec\u5e0c\u671b\u4f7f\u7528\u5176\u4ed6\u7b26\u53f7\u4f5c\u4e3a\u8bed\u53e5\u5206\u9694\u7b26,\u4ee5\u5b9e\u73b0\u4e00\u4e9b\u7279\u6b8a\u7684\u6548\u679c\u3002\u8fd9\u65f6,\u5c31\u53ef\u4ee5\u4f7f\u7528DELIMITER\u8bed\u53e5\u4fee\u6539\u5206\u9694\u7b26\u3002
\nDELIMITER\u7684\u8bed\u6cd5\u5f88\u7b80\u5355,\u5982:<\/p>\n
DELIMITER new_delim <\/code><\/pre>\n
\u8fd9\u4f1a\u5c06\u8bed\u53e5\u5206\u9694\u7b26\u4fee\u6539\u4e3anew_delim\u3002\u65b0\u7684\u5206\u9694\u7b26\u53ef\u4ee5\u662f\u4e00\u4e2a\u7b26\u53f7,\u4e5f\u53ef\u4ee5\u662f\u591a\u4e2a\u5b57\u7b26\u3002<\/p>\n
\u5e38\u89c1\u7684\u4f7f\u7528DELIMITER\u7684\u60c5\u51b5\u6709:<\/p>\n
2.1. \u5b58\u50a8\u8fc7\u7a0b\u548c\u51fd\u6570<\/h5>\n
\u5b58\u50a8\u8fc7\u7a0b\u548c\u51fd\u6570\u4e2d\u7684SQL\u8bed\u53e5\u6211\u4eec\u901a\u5e38\u4e0d\u60f3\u7528;<\/code>\u7ed3\u675f,\u800c\u5e0c\u671b\u4e00\u76f4\u7f16\u5199\u5230 END \u6216 END IF \u4e3a\u6b62\u3002 \u6b64\u65f6\u53ef\u4ee5\u4f7f\u7528DELIMITER\u4fee\u6539\u5206\u9694\u7b26\u3002
\n\u4f8b\u5982:<\/p>\n
DELIMITER $$\nCREATE PROCEDURE myproc()\nBEGIN \n    SELECT * FROM tbl;\nEND$$<\/code><\/pre>\n
2.2. \u89e6\u53d1\u5668<\/h5>\n
\u89e6\u53d1\u5668\u4f53\u4e2d\u4e5f\u5305\u542b\u591a\u6761SQL\u8bed\u53e5,\u4e5f\u9700\u8981\u4fee\u6539\u5206\u9694\u7b26\u3002\u4f8b\u5982:<\/p>\n
DELIMITER $$\nCREATE TRIGGER mytrigger \nBEFORE INSERT ON tbl \nFOR EACH ROW \nBEGIN\n    INSERT INTO tbl_log VALUES (NEW.id, NEW.name);\nEND$$ <\/code><\/pre>\n
2.3. \u6279\u91cf\u6267\u884c\u591a\u6761\u8bed\u53e5<\/h5>\n
\u6709\u65f6\u5019\u6211\u4eec\u60f3\u5728KUNDB\u5ba2\u6237\u7aef\u6267\u884c\u591a\u6761\u8bed\u53e5,\u800c\u4e0d\u5e0c\u671b\u6bcf\u6761\u8bed\u53e5\u7ed3\u675f\u65f6\u6309\u56de\u8f66\u3002\u8fd9\u65f6\u53ef\u4ee5\u4fee\u6539\u5206\u9694\u7b26,\u5c06\u591a\u6761\u8bed\u53e5\u5199\u5728\u4e00\u8d77,\u6700\u540e\u7528\u5206\u9694\u7b26\u7ed3\u675f\u3002\u4f8b\u5982:<\/p>\n
DELIMITER ;; \nSELECT * FROM tbl; INSERT INTO tbl VALUES (1, 'a');;;<\/code><\/pre>\n
\u8fd9\u4f1a\u540c\u65f6\u6267\u884c\u4e24\u6761SQL\u8bed\u53e5\u3002<\/p>\n
\u6240\u4ee5,\u603b\u7ed3\u6765\u8bf4,DELIMITER\u8bed\u53e5\u4e3b\u8981\u7528\u4e8e:<\/p>\n
    \n
  1. \u5b58\u50a8\u8fc7\u7a0b\u548c\u51fd\u6570\uff0c\u4fee\u6539\u7ed3\u675f\u7b26\u4e3aEND<\/li>\n
  2. \u89e6\u53d1\u5668\uff0c\u4fee\u6539\u7ed3\u675f\u7b26\u4e3aEND<\/li>\n
  3. \u6279\u91cf\u6267\u884c\u591a\u6761\u8bed\u53e5\uff0c\u4fee\u6539\u7ed3\u675f\u7b26\u4e3a\u975e\u9ed8\u8ba4;<\/code>\u7b26\u53f7<\/li>\n<\/ol>\n
    DELIMITER\u975e\u5e38\u6709\u7528\uff1b\u719f\u7ec3\u4f7f\u7528DELIMITER\u53ef\u4ee5\u66f4\u4f18\u96c5\u548c\u9ad8\u6548\u5730\u7f16\u5199KUNDB\u7684\u5b58\u50a8\u8fc7\u7a0b\u3001\u89e6\u53d1\u5668\u548c\u6279\u5904\u7406\u8bed\u53e5\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
    \u6982\u8981\u63cf\u8ff0 \u672c\u6587\u4e3b\u8981\u4ecb\u7ecd\uff0ckundb\u5982\u4f55\u901a\u8fc7\u8bbe\u7f6eDELIMITER\u5206\u9694\u7b26\uff0c\u5728\u540e\u53f0\u547d\u4ee4\u884c\u6267\u884cfunction\u6216\u8005p ..<\/p>\n
    <\/div>\n
    Read more<\/a><\/p>\n","protected":false},"author":12,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[40],"tags":[],"class_list":["post-10177","post","type-post","status-publish","format-standard","hentry","category-sql_issue"],"acf":[],"_links":{"self":[{"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=\/wp\/v2\/posts\/10177","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=\/wp\/v2\/users\/12"}],"replies":[{"embeddable":true,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10177"}],"version-history":[{"count":3,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=\/wp\/v2\/posts\/10177\/revisions"}],"predecessor-version":[{"id":10703,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=\/wp\/v2\/posts\/10177\/revisions\/10703"}],"wp:attachment":[{"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10177"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10177"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kbwp.transwarp.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10177"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}