# 查看当前 stduent_info 表中的索引,目前只有主键(id)索引 SHOW INDEX FROM student_info; # student_id 字段上没有索引 SELECT course_id, class_id, NAME, create_time, student_id FROM student_info WHERE student_id = 123110; # 375 ms # 给 student_id 字段添加索引 ALTER TABLE student_info AD...
show variables like "%mode%"; # 查看数据库配置中变量名包含mode的配置参数 # 修改安全模式 set session # 只在当前操作界面有效 set global # 全局有效 set global sql_mode ='STRICT_TRANS_TABLES' #设置严格模式语句 # 修改完之后退出当前客户端重新登陆即可 ''' ps: mysql> create database db2; Quer...
9 RegisterLog in Sign up with one click: Facebook Twitter Google Share on Facebook AcronymDefinition PGSIProblem Gambling Severity Index(social sciences) PGSIPolisportive Giovanili Salesiane International(Italian: International Salesian Youth Sports) ...
*** PGXC_CTL START *** Current directory: /postgresxl/bin PGXC show config all === Postgres-XL configuration Common Info === === Overall === Postgres-XL owner: postgres Postgres-XL user: postgres Postgres-XL install directory: /postgresxl pgxc_ctl home: /postgresxl/bin pgxc_ctl configu...
Threads_connected 跟show processlist结果相同,表示当前连接数。准确的来说,Threads_running是代表当前并发数 这是是查询数据库当前设置的最大连接数 mysql> show variables like '%max_connections%'; +---+---+ | Variable_name | Value | +---+---+ | max_connections...
Be moreverbose(show counter open errors, etc). 输出 PerfTop: 23287 irqs/sec kernel:31.2% exact: 0.0% [1000Hz cycles], (all, 24 CPUs) ---samples pcnt RIP function DSO___ ___
We have examined 2MASS, SDSS, and GALEX archival data for large subsets of these rejected stars, and conclude that only a handful (about 3%) show indications of binarity; most are consistent with (single) metal–poor F stars, as was originally supposed. 展开 年份: 2005 ...
80000 SET SESSION information_schema_stats_expiry=0 */2023-12-30T15:22:50.379925-00:008QuerySETSESSIONNET_READ_TIMEOUT=86400,SESSIONNET_WRITE_TIMEOUT=864002023-12-30T15:22:50.380446-00:008QuerySHOWVARIABLESLIKE'gtid_mode'2023-12-30T15:22:50.391288-00:008QueryFLUSH/*!40101 LOCAL */TABLES2023-...
Sex and Gender: Critical Variables in Pre-Clinical and Clinical Medical Research (vol 24, pg 203, 2016) 喜欢 0 阅读量: 19 作者:Santos,Roberta,S.,Frank,Aaron,P.,Fatima,Luciana,A.,Morselli 展开 被引量: 11 年份: 2016 收藏 引用 批量引用 报错 分享 ...
Ora2Pg is a free tool used to migrate an Oracle database to a PostgreSQL compatible schema. It connects your Oracle database, scan it automatically and extracts its structure or data, it then generates SQL scripts that you can load into PostgreSQL. - dar