倒数第二段，MySQL has no limit on the number of tables. The underlying file systemmay have a limit on the number of files that represent tables.Individual storage engines may impose engine-specific constraints.InnoDB permits up to 4 billion tables.告诉你，表的建立是有限制的，如果使用InnoDB 存储...
key_buffer_size = 16M #索引缓存区大小,一般设置物理内存的30-40% read_buffer_size = 128K #读操作缓冲区大小,推荐设置16M或32M query_cache_type = ON #打开查询缓存功能 query_cache_limit = 1M #查询缓存限制,只有1M以下查询结果才会被缓存,以免结果数据较大把缓存池覆盖 query_cache_size = 16M #查看...
concat( round( ( data_length+index_length )/(1024*1024*1024),6),' G')AS'Total'FROMinformation_schema.TABLES WWHEREtable_schemaLIKE'database name'; 3、查看表空间 # 单位GBSELECTconcat( round(sum( data_length )/(1024*1024*1024),6),'GB')AS'Total Data Size'FROMinformation_schema.TABLESW...
–mysql-ignore-errors=[LIST,…] list of errors to ignore, or “all” [1213,1020,1205] #要忽略或“全部”的错误列表 --mysql-dry-run[=on|off] Dry run, pretend that all MySQL client API calls are successful without executing them [off] #模拟运行,假设所有的MySQL客户端API调用都是成功的,...
TABLES 提供有关数据库中表的信息 TABLE_CONSTRAINTS 描述了哪些表具有约束 TRIGGERS 提供有关触发器的信息 VIEWS 提供有关数据库中的视图的信息 VIEW_ROUTINE_USAGE (从MySQL 8.0.13开始可用)提供对视图定义中使用的存储函数的信息的访问。该表未列出有关定义中使用的内置SQL函数或用户定义函数(UDF)的信息。 VIEW...
(mysql 库一般不同步) binlog-ignore-db=mysql # 开启二进制日志功能,可以随便取,最好有含义 log-bin=lyz-mysql-bin ## 为每个 session 分配的内存,在事务过程中用来存储二进制日志的缓存 binlog_cache_size=1M ## 主从复制的格式(mixed,statement,row,默认格式是 statement) binlog_format=mixed # 二进制...
#缺省情况下mysql已经作为一个服务添加到系统目录已经配置了自启动,如下 [root@rhel64a ~]# chkconfig --list |grep mysql mysql 0:off 1:off 2:on 3:on 4:on 5:on 6:off root@localhost[(none)]> system ps -ef|grep mysql |grep -v grep root 5127 1 0 14:49 pts/4 00:00:00 /bin/sh...
or the list is too long select * from tmp_sel_arg1 where kp1 not in (1, 2, 3, 4, 5) (gdb) my st tree $b0 (SEL_TREE *) 0x7f7cf040acd0 [type=SEL_TREE::KEY,keys.m_size=1] `--$b1 (SEL_ROOT *) 0x7f7cf040adc8 [type=SEL_ROOT::Type::KEY_RANGE, use_count=1, ...
set_allowed_mem_size() : anonymous_namespace{opt_trace.cc}::Buffer, Opt_trace_stmt set_allowed_methods() : http::server::Server set_allowed_parameter_tables() : anonymous_namespace{join_optimizer.cc}::RefAccessBuilder set_allowlist_errors() : dd::upgrade::Bootstrap_error_handler set_alte...
LIST OF TRANSACTIONS FOR EACH SESSION: ---TRANSACTION 462308676, ACTIVE 4 sec inserting mysql tables in use 1, locked 1 LOCK WAIT 2 lock struct(s), heap size 360, 1 row lock(s), undo log entries 1 MySQL thread id 3796966, OS thread handle 0x7f78ea5c4700, query id 781051460 localhos...