摘要：[root@localhost ~]# mysql -h localhost -uxxxxxxx -pxxxxxxx Welcome to the MariaDB monitor. Commands end with ; or \g. Your MariaDB connection id is 19 阅读全文

摘要：--oracle的字典 select * from dictionary --创建表空间oracle创建表空间 create tablesapce testSpace datafile 'E:oracleSpace\test.dbf' size 100M autoextend on; --创建用户 阅读全文

摘要：select sysdate from dual--返回系统时间 select trunc(sysdate) from dual select trunc(sysdate-8) from dual select trunc(sysdate+8) from dual select trunc(sysd 阅读全文