摘要:
1.升级前查看MySQL版本: mysql> select @@basedir;+ +| @@basedir |+ +| D:\mysql-5.6.51-winx64\ |+ +1 row in set (0.00 sec)mysql> mysql> select @@datadir;+ +| @@ 阅读全文
摘要:
1B (byte 字节); 1KB(Kilobyte 千字节) = 2^10 B = 1024 B; 1MB(Megabyte 兆字节) = 2^10 KB = 1024 KB = 2^20 B; 1GB(Gigabyte 吉字节) = 2^10 MB = 1024 MB = 2^30 B; 1TB 阅读全文