11 2021 档案
摘要:需要管理员用户下执行(sys/sysdba) --先查锁 select * from v$lock where lmode > 0 and type in ('TM','TX'); --查用户名 select * from v$session where username = 'PROD_JCJ'
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摘要:一、String::from_utf8 fn main() { let bytes = vec![0x41, 0x42, 0x43]; let s = String::from_utf8(bytes).expect("Found invalid UTF-8"); println!("{}", s);
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