{"id":2281,"date":"2022-03-03T22:01:11","date_gmt":"2022-03-03T14:01:11","guid":{"rendered":"https:\/\/www.zeroheart.xyz\/wordpress\/?p=2281"},"modified":"2022-06-08T15:30:22","modified_gmt":"2022-06-08T07:30:22","slug":"pg-%e4%b8%80%e4%ba%9b%e5%a4%87%e5%bf%98","status":"publish","type":"post","link":"https:\/\/www.zeroheart.xyz\/wordpress\/?p=2281","title":{"rendered":"pg \u4e00\u4e9b\u5907\u5fd8"},"content":{"rendered":"\n

1.\u521b\u5efa\u5e8f\u5217<\/p>\n\n\n\n

create sequence seq_user_camera_version increment by 1 minvalue 1 no maxvalue start with 1;<\/p>\n\n\n\n

\u5efa\u8868\uff0c\u5e76\u7528\u4e0a\u9762\u7684\u5e8f\u5217\u4f5c\u4e3a\u4e3b\u952e\u81ea\u589e\u5e8f\u5217<\/p>\n\n\n\n

CREATE TABLE public.user_camera_version ( id int4 NOT NULL DEFAULT nextval('seq_user_camera_version'::regclass), user_id int4 NULL, user_type varchar(1) NULL, hardware_version varchar(100) NULL, software_version varchar(100) NULL, modify_date timestamp NULL, CONSTRAINT user_camera_version_pkey PRIMARY KEY (id) ) WITH ( OIDS=FALSE ) ;<\/code><\/em><\/pre>\n\n\n\n
\u67e5\u8be2\u5e8f\u5217<\/strong>
select nextval(‘seq_user_camera_version’);<\/p>\n\n\n\n
\u5220\u9664\u5e8f\u5217\uff1a<\/strong><\/p>\n\n\n\n
 DROP SEQUENCE  IF EXISTS   seq_user_camera_version;<\/p>\n\n\n\n
\u53c2\u8003\uff1aPGSQL\u6570\u636e\u5e93\u521b\u5efa\u5e8f\u5217\uff0c\u67e5\u8be2\u5e8f\u5217\u7684\u4e0b\u4e00\u4e2a\u503c\uff0c\u4ee5\u53ca\u5220\u9664\u5e8f\u5217 – dongyaotou – \u535a\u5ba2\u56ed (cnblogs.com)<\/a><\/p>\n\n\n\n
2.\u5904\u7406\u65f6\u95f4\u6233<\/p>\n\n\n\n
\u65e5\u671f\u8f6c\u65f6\u95f4\u6233
SELECT EXTRACT(epoch FROM NOW());
SELECT EXTRACT(epoch FROM CAST(‘2017-12-06 00:17:10’ AS TIMESTAMP));<\/p>\n\n\n\n
\u65f6\u95f4\u6233\u8f6c\u65e5\u671f
SELECT TO_TIMESTAMP(1512490630)<\/p>\n\n\n\n

\u53c2\u8003\uff1ahttps:\/\/blog.csdn.net\/weixin_37189727\/article\/details\/107820798<\/p>\n\n\n\n
(26\u6761\u6d88\u606f) Navicat\u521b\u5efapgsql\u5e8f\u5217\u81ea\u589e_\u5c71\u95f4\u6f2b\u6b65\u4eba\u751f\u8def\u7684\u535a\u5ba2-CSDN\u535a\u5ba2_navicat \u521b\u5efa\u5e8f\u5217<\/a> \u5de5\u5177\u64cd\u4f5c\uff0c\u5907\u5fd8<\/p>\n\n\n\n
\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"\/<\/figure>\n\n\n\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
1.\u521b\u5efa\u5e8f\u5217 create sequence seq_user_camera_version incremen […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[117],"tags":[],"_links":{"self":[{"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/2281"}],"collection":[{"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2281"}],"version-history":[{"count":5,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/2281\/revisions"}],"predecessor-version":[{"id":3288,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/2281\/revisions\/3288"}],"wp:attachment":[{"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2281"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2281"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zeroheart.xyz\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2281"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}