<\/span><\/h2>\n<\/p>\n
<\/p>\n
mysql\u6570\u636e\u5e93\u7ba1\u7406\u8f6f\u4ef6\u662f\u4e00\u4e2acs\u67b6\u6784\u7684\u5957\u63a5\u5b57\u7a0b\u5e8f\uff0c\u8be5\u7a0b\u5e8f\u7684\u57fa\u672c\u6d41\u7a0b\u5c31\u662f\u5ba2\u6237\u7aef\u63d0\u4ea4\u547d\u4ee4\u7ed9\u670d\u52a1\u7aef\u8fd0\u884c\uff0c\u7136\u540e\u670d\u52a1\u7aef\u5c06\u7ed3\u679c\u8fd4\u56de\u7ed9\u5ba2\u6237\u7aef\uff0c\u6240\u4ee5\u8bf4\u767d\u4e86\u6570\u636e\u5e93\u7ba1\u7406\u8f6f\u4ef6\u5982mysql\r\nmysql\u672c\u8d28\u5c31\u662f\u4e00\u4e2a\u8fdc\u7a0b\u6267\u884c\u547d\u4ee4\u7684\u5957\u63a5\u5b57\u7a0b\u5e8f\uff0c\u6570\u636e\u5e93\u7ba1\u7406\u8f6f\u4ef6\u63d0\u4f9b\u7684\u8fd9\u5957\u547d\u4ee4\u79f0\u4e4b\u4e3asql<\/code><\/pre>\n<\/p>\n
<\/p>\n
<\/span>\u4e8c \u6570\u636e\u5e93\u7684\u57fa\u672c\u6982\u5ff5<\/span><\/h2>\n<\/p>\n
<\/p>\n
<\/span>2.1 MySQL\u6570\u636e\u5e93\u7ba1\u7406\u8f6f\u4ef6<\/span><\/h3>\n<\/p>\n
<\/p>\n
1\u3001\u6570\u636e\u5e93\u7ba1\u7406\u8f6f\u4ef6\u672c\u8d28\u5c31\u662f\u4e00\u4e2asocker\u5957\u63a5\u5b57\u8f6f\u4ef6\r\n2\u3001\u662f\u4e00\u4e2acs\u67b6\u6784<\/code><\/pre>\n<\/p>\n
<\/p>\n
<\/span>2.2 \u5173\u7cfb\u578b\u6570\u636e\u5e93\u57fa\u672c\u6982\u5ff5<\/span><\/h3>\n<\/p>\n
<\/p>\n
<\/span>1\u3001\u6570\u636e\u5e93\u7684\u7ec4\u6210\u90e8\u5206<\/span><\/h4>\n<\/p>\n
<\/p>\n
\u5b57\u6bb5\uff1a\u8868\u7684\u6807\u9898\r\n\u8bb0\u5f55\uff1a\u6587\u4ef6\u4e2d\u7684\u4e00\u884c\u5185\u5bb9\r\n\u8868\uff1a\u6587\u4ef6\r\n\u5e93\uff1a\u6587\u4ef6\u5939\r\n\u6570\u636e\u5e93\u7ba1\u7406\u8f6f\u4ef6\uff1a\u672c\u8d28\u5c31\u662f\u4e00\u4e2asocket\u8f6f\u4ef6\r\n\u6570\u636e\u5e93\u670d\u52a1\u5668\uff1a\u8fd0\u884c\u6570\u636e\u5e93\u7ba1\u7406\u8f6f\u4ef6\u670d\u52a1\u7aef\u7684\u8ba1\u7b97\u673a<\/code><\/pre>\n<\/p>\n
<\/p>\n
<\/span>2\u3001\u6570\u636e\u5e93\u7684\u7ed3\u6784\u6a21\u578b<\/span><\/h4>\n<\/p>\n
<\/p>\n
shell\u547d\u4ee4\r\nshell\u89e3\u91ca\u5668\r\nlinux\u64cd\u4f5c\u7cfb\u7edf\r\n\u8ba1\u7b97\u673a\u786c\u4ef6\r\n\r\nsql\u8bed\u53e5\r\nmysql\u670d\u52a1\u7aef\u8f6f\u4ef6\r\nlinux\u64cd\u4f5c\u7cfb\u7edf\r\n\u8ba1\u7b97\u673a\u786c\u4ef6<\/code><\/pre>\n<\/p>\n
<\/p>\n
<\/span>2.3 \u6570\u636e\u5e93\u8f6f\u4ef6\u5206\u4e3a\u4e24\u5927\u7c7b<\/span><\/h3>\n<\/p>\n
<\/p>\n
1\u3001\u5173\u7cfb\u578b<\/p>\n
<\/p>\n
<\/p>\n
mysql\u3001oracle\u3001db2\u3001sqlserver\u3001marriadb<\/p>\n
<\/p>\n
<\/p>\n
2\u3001\u975e\u5173\u7cfb\u578b\uff1a key\uff1avalue<\/p>\n
<\/p>\n
<\/p>\n
mongodb\u3001redis<\/p>\n
<\/p>\n
<\/p>\n
<\/span>\u4e09 \u6570\u636e\u5e93\u7684\u4e00\u4e9bsql\u8bed\u53e5<\/span><\/h2>\n<\/p>\n
<\/p>\n
<\/span>3.1 \u5e93<\/span><\/h3>\n<\/p>\n
<\/p>\n
\u589e<\/p>\n
<\/p>\n
<\/p>\n
create database db1 charset utf8mb4;<\/code><\/pre>\n<\/p>\n
<\/p>\n
\u6539<\/p>\n
<\/p>\n
<\/p>\n
# \u6539\u6570\u636e\u5e93\u6ca1\u529e\u6cd5\u6539\u540d\u5b57\uff0c\u4f46\u662f\u53ef\u4ee5\u6539\u5b57\u7b26\u7f16\u7801\r\nalter database db1 charset gbk;<\/code><\/pre>\n<\/p>\n
<\/p>\n
\u67e5<\/p>\n
<\/p>\n
<\/p>\n
show create database db1;<\/code><\/pre>\n<\/p>\n
<\/p>\n
\u5220<\/p>\n
<\/p>\n
<\/p>\n
drop database db1;<\/code><\/pre>\n<\/p>\n
<\/p>\n
<\/span>3.2 \u8868<\/span><\/h3>\n<\/p>\n
<\/p>\n
create database db1;\r\nuse db1;<\/code><\/pre>\n<\/p>\n
<\/p>\n
\u589e<\/p>\n
<\/p>\n
<\/p>\n
create table t1(id int,name varchar(16));<\/code><\/pre>\n<\/p>\n
<\/p>\n
\u6539<\/p>\n
<\/p>\n
<\/p>\n
# \u6539\u8868\u7684\u5b57\u6bb5\uff0c\u4e0d\u80fd\u6539\u5185\u5bb9\r\nalter table t1 modify name varchar(20);<\/code><\/pre>\n<\/p>\n
<\/p>\n
\u67e5<\/p>\n
<\/p>\n
<\/p>\n
# \u67e5\u770b\u5f53\u524d\u5e93\u4e0b\u7684\u8868\u90fd\u6709\u54ea\u4e9b\r\nshow tables;\r\n# \u67e5\u770b\u8868t1\u7684\u5185\u5bb9\r\ndesc t1;\r\n# \u5c55\u793a\u521b\u5efa\u7684\u8868t1\r\nshow create table t1;<\/code><\/pre>\n<\/p>\n
<\/p>\n
\u5220<\/p>\n
<\/p>\n
<\/p>\n
drop table t1;<\/code><\/pre>\n<\/p>\n
<\/p>\n
<\/span>3.3 \u8bb0\u5f55<\/span><\/h3>\n<\/p>\n
<\/p>\n
create database db1;\r\nuse db1;\r\ncreate table t1(id int,name varchar(16));<\/code><\/pre>\n<\/p>\n
<\/p>\n
\u589e<\/p>\n
<\/p>\n
<\/p>\n
insert db1.t1 values(1,\"egon\"),(2,\"tom\"),(3,\"jack\");\r\ninsert db1.t1(name,id) values(\"lili\",4);\r\ninsert db1.t1(id) values(5);<\/code><\/pre>\n<\/p>\n
<\/p>\n
\u6539<\/p>\n
<\/p>\n
<\/p>\n
update db1.t1 set name=\"JACK\" where id=3;<\/code><\/pre>\n<\/p>\n
<\/p>\n
\u67e5<\/p>\n
<\/p>\n
<\/p>\n
select * from db1.t1;\r\nselect id,name from db1.t1;\r\nselect id,name from db1.t1 where id=3;\r\nselect id,name from db1.t1 where id<3;<\/code><\/pre>\n<\/p>\n
<\/p>\n
\u5220<\/p>\n
<\/p>\n
<\/p>\n
delete from db1.t1 where id=3;\r\n# \u6e05\u7a7a\u8868\r\ndelete from db1.t1; ------\u4e0d\u8981\u8fd9\u4e48\u505a\uff0c\u65e0\u6cd5\u505a\u5230\u5f7b\u5e95\u8fd8\u539f\r\ntruncate db1.t1;<\/code><\/pre>\n<\/p>\n
<\/p>\n
<\/span>\u56db \u8bfe\u540e\u95ee\u9898<\/span><\/h2>\n<\/p>\n
<\/p>\n
1\u3001\u63cf\u8ff0\u6570\u636e\u5e93\u5fd8\u8bb0\u5bc6\u7801\u540e\u7684\u7834\u89e3\u6d41\u7a0b<\/p>\n
<\/p>\n
<\/p>\n
1\u3001\u5148\u505c\u4e0b\u6570\u636e\u5e93\u670d\u52a1\uff0c\u4f7f\u7528\u547d\u4ee4systemctl stop mysqld\r\n2\u3001\u7ed5\u8fc7\u9a8c\u8bc1\u542f\u52a8\uff0c\u4f7f\u7528\u4e00\u4e2a\u547d\u4ee4\uff0c\u8ba9\u6570\u636e\u5e93\u201c\u4e0d\u5e26\u5bc6\u7801\u68c0\u67e5\u529f\u80fd\u201d\u5730\u542f\u52a8\uff0c\u8fd9\u6837\u6211\u4eec\u5c31\u80fd\u7a7a\u624b\u8fdb\u53bb\u4e86\uff0c\u8fd9\u4e2a\u547d\u4ee4\u662fmysqld_safe --skip-grant-tables &,\u518d\u8f93\u5165mysql\u5c31\u80fd\u76f4\u63a5\u8fde\u4e0a\u4e86\r\n3\u3001\u4fee\u6539\u5bc6\u7801\uff0c\u8fdb\u53bb\u540e\u628a\u5bc6\u7801\u8bbe\u6210\u65b0\u7684\r\nmysql\u6570\u636e\u5e93\u662f\r\nFLUSH PRIVILEGES;\r\nALTER USER 'root'@'localhost' IDENTIFIED BY '\u4f60\u7684\u65b0\u5bc6\u7801';\r\nmariadb\u6570\u636e\u5e93\u662f\r\nUPDATE mysql.user SET password=PASSWORD('\u65b0\u5bc6\u7801') WHERE user='root';\r\nFLUSH PRIVILEGES;<\/code><\/pre>\n<\/p>\n
<\/p>\n
2\u3001\u8bf4\u4e0b\u8be5\u5982\u4f55\u7edf\u4e00\u6570\u636e\u5e93\u7684\u5b57\u7b26\u7f16\u7801\uff1f<\/p>\n
<\/p>\n
<\/p>\n
\u53bb\u5230\/etc\/my.cnf\u91cc\u52a0\u4e0a\u5982\u4e0b\u51e0\u884c\u5185\u5bb9\r\n[client]\r\ndefault-character-set = utf8mb4\r\n\r\n[mysql]\r\ndefault-character-set = utf8mb4\r\n\r\n[mysqld]\r\ncharacter-set-server = utf8mb4\r\ncollation-server = utf8mb4_unicode_ci<\/code><\/pre>\n<\/p>\n","protected":false},"excerpt":{"rendered":"
\u4e00 \u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\u7684\u57fa\u672c\u4ecb\u7ecd \u4e8c \u6570\u636e\u5e93\u7684\u57fa\u672c\u6982\u5ff5 2.1 MySQL\u6570\u636e\u5e93\u7ba1\u7406\u8f6f\u4ef6 2.2 \u5173\u7cfb\u578b\u6570\u636e\u5e93\u57fa\u672c\u6982\u5ff5 1\u3001\u6570\u636e\u5e93\u7684\u7ec4\u6210\u90e8\u5206 2\u3001\u6570\u636e\u5e93\u7684\u7ed3\u6784\u6a21\u578b 2.3 \u6570\u636e\u5e93\u8f6f\u4ef6\u5206\u4e3a\u4e24\u5927\u7c7b 1\u3001\u5173\u7cfb\u578b mysql\u3001oracle\u3001db2\u3001sqlserver\u3001marriadb 2\u3001\u975e\u5173\u7cfb\u578b\uff1a key\uff1avalue mongodb\u3001redis \u4e09 \u6570\u636e\u5e93\u7684\u4e00\u4e9bsql\u8bed\u53e5 3.1 \u5e93 \u589e \u6539 \u67e5 \u5220 3.2 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[6],"class_list":["post-19","post","type-post","status-publish","format-standard","hentry","category-mysql","tag-mysql"],"_links":{"self":[{"href":"https:\/\/www.233xianyu.top\/index.php\/wp-json\/wp\/v2\/posts\/19","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.233xianyu.top\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.233xianyu.top\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.233xianyu.top\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.233xianyu.top\/index.php\/wp-json\/wp\/v2\/comments?post=19"}],"version-history":[{"count":5,"href":"https:\/\/www.233xianyu.top\/index.php\/wp-json\/wp\/v2\/posts\/19\/revisions"}],"predecessor-version":[{"id":27,"href":"https:\/\/www.233xianyu.top\/index.php\/wp-json\/wp\/v2\/posts\/19\/revisions\/27"}],"wp:attachment":[{"href":"https:\/\/www.233xianyu.top\/index.php\/wp-json\/wp\/v2\/media?parent=19"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.233xianyu.top\/index.php\/wp-json\/wp\/v2\/categories?post=19"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.233xianyu.top\/index.php\/wp-json\/wp\/v2\/tags?post=19"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}