{"id":19,"date":"2026-08-15T15:36:55","date_gmt":"2026-08-15T15:36:55","guid":{"rendered":"https:\/\/wordpress.sinosoft.ren\/?p=19"},"modified":"2026-08-15T15:41:41","modified_gmt":"2026-08-15T15:41:41","slug":"%e6%95%b0%e6%8d%ae%e5%ba%93%e8%bf%90%e7%bb%b4%e9%80%9f%e6%9f%a5%e7%ac%94%e8%ae%b0","status":"publish","type":"post","link":"https:\/\/wordpress.sinosoft.ren\/?p=19","title":{"rendered":"\u6570\u636e\u5e93\u8fd0\u7ef4\u901f\u67e5\u7b14\u8bb0"},"content":{"rendered":"<h2>MySQL<\/h2>\n<h3>\u8fde\u63a5\u6570\u8fc7\u591a\u4f18\u5316<\/h3>\n<pre>SHOW PROCESSLIST;\nsudo vim \/etc\/mysql\/mysql.conf.d\/mysqld.cnf\n# \u6dfb\u52a0\nmax_connections = 500\nwait_timeout = 1000\ninteractive_timeout = 2000\nsudo systemctl restart mysql<\/pre>\n<h3>MySQL 8 \u8fdc\u7a0b\u8fde\u63a5\u6388\u6743<\/h3>\n<pre>grant all privileges on *.* to 'root'@'%';\nALTER USER 'root'@'%' IDENTIFIED WITH mysql_native_password BY '\u4f60\u7684\u5bc6\u7801';<\/pre>\n<h3>ibd \u6587\u4ef6\u6062\u590d\uff08\u4ee5\u8868 jhi_user \u4e3a\u4f8b\uff09<\/h3>\n<pre>alter table jhi_user discard tablespace;   # \u8131\u79bb\u8868\u7a7a\u95f4\ncp -r \u8001\u5e93\u7684jhi_user.ibd \u65b0\u5e93\u5bf9\u5e94\u76ee\u5f55\/\nalter table jhi_user import tablespace;    # \u5bfc\u5165<\/pre>\n<h3>dump \u5bfc\u5165\u5bfc\u51fa<\/h3>\n<pre>mysqldump -uroot -p \u5e93\u540d > \u5907\u4efd.sql\nmysql -u root -p\nCREATE DATABASE \u65b0\u5e93;\nmysql -u root -p \u65b0\u5e93 < \u5907\u4efd.sql<\/pre>\n<h2>Oracle<\/h2>\n<h3>\u6269\u5bb9\u8868\u7a7a\u95f4<\/h3>\n<pre>select tablespace_name, sum(bytes)\/1024\/1024 from dba_data_files group by tablespace_name;\nalter database datafile '\/\u8def\u5f84\/users01.dbf' RESIZE 20G;\nalter database datafile '\/\u8def\u5f84\/users01.dbf' AUTOEXTEND ON NEXT 500M MAXSIZE UNLIMITED;<\/pre>\n<h3>\u5bfc\u5165\u5bfc\u51fa\uff08imp\/exp\uff09<\/h3>\n<pre># \u5bfc\u51fa\nexp \u7528\u6237\u540d\/\u5bc6\u7801@\u5b9e\u4f8b file=e:\/bak\/x.dmp log=e:\/bak\/log_name\n# \u5bfc\u5165\nimp \u7528\u6237\u540d\/\u5bc6\u7801@\u5b9e\u4f8b file=g:\/x.dmp log=g:\/log_name fromuser=\u6e90\u7528\u6237 touser=\u76ee\u6807\u7528\u6237 ignore=y<\/pre>\n<h3>\u67e5\u770b\u88ab\u9501\u7684\u8868\u4e0e\u89e3\u9501<\/h3>\n<pre>SELECT * FROM v$locked_object;\nselect b.owner,b.object_name,a.session_id,a.locked_mode\nfrom v$locked_object a,dba_objects b where b.object_id=a.object_id;\nalter system kill session 'sid,serial#';<\/pre>\n<h2>SQL Server<\/h2>\n<h3>\u6e05\u9664\u7f13\u5b58<\/h3>\n<pre>DBCC FREEPROCCACHE\nDBCC FREESESSIONCACHE\nDBCC FREESYSTEMCACHE('All')\nDBCC DROPCLEANBUFFERS<\/pre>\n<h3>\u547d\u4ee4\u884c\u6267\u884c SQL<\/h3>\n<pre>sqlcmd -S \u670d\u52a1\u5668 -d \u6570\u636e\u5e93 -U \u7528\u6237 -P \u5bc6\u7801 -i d:\\1.sql<\/pre>\n<h3>CONVERT \u65e5\u671f\u683c\u5f0f\u5e38\u7528\u53c2\u6570<\/h3>\n<pre>SELECT CONVERT(varchar(100), GETDATE(), 20)  -- yyyy-mm-dd hh:mi:ss\nSELECT CONVERT(varchar(100), GETDATE(), 23)  -- yyyy-mm-dd\nSELECT CONVERT(varchar(100), GETDATE(), 8)   -- hh:mi:ss<\/pre>\n<h2>PostgreSQL<\/h2>\n<pre>sudo su - postgres\npsql\ncreate database \u5e93\u540d;<\/pre>\n<h2>Redis \u96c6\u7fa4\u8282\u70b9\u914d\u7f6e<\/h2>\n<pre>port 7000\ncluster-enabled yes\ncluster-config-file 7000_node.conf\ncluster-node-timeout 15000\nappendonly yes<\/pre>\n<p>\u4ee5\u4e0a\u5185\u5bb9\u6574\u7406\u81ea\u4e2a\u4eba\u8fd0\u7ef4\u7b14\u8bb0\uff0c\u4f9b\u5feb\u901f\u67e5\u9605\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>MySQL\/Oracle\/SQL Server\/PostgreSQL\/Redis \u5e38\u7528\u8fd0\u7ef4\u547d\u4ee4\u901f\u67e5<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-19","post","type-post","status-publish","format-standard","hentry","category-4"],"_links":{"self":[{"href":"https:\/\/wordpress.sinosoft.ren\/index.php?rest_route=\/wp\/v2\/posts\/19","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wordpress.sinosoft.ren\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wordpress.sinosoft.ren\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wordpress.sinosoft.ren\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/wordpress.sinosoft.ren\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=19"}],"version-history":[{"count":2,"href":"https:\/\/wordpress.sinosoft.ren\/index.php?rest_route=\/wp\/v2\/posts\/19\/revisions"}],"predecessor-version":[{"id":31,"href":"https:\/\/wordpress.sinosoft.ren\/index.php?rest_route=\/wp\/v2\/posts\/19\/revisions\/31"}],"wp:attachment":[{"href":"https:\/\/wordpress.sinosoft.ren\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=19"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wordpress.sinosoft.ren\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=19"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wordpress.sinosoft.ren\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=19"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}