oracle 19c 密码字段

12:51:25 SYS@pdb19c> alter user C##SCOTT1 identified by oracle;
select NAME,SPARE4 from user$ where name='C##SCOTT1';
User altered.

Elapsed: 00:00:00.06
12:51:28 SYS@pdb19c> 

NAME
--------------------------------------------------------------------------------------------------------------------------------
SPARE4
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
C##SCOTT1
S:F30F06492C79DD8B0E8CB08447974F83AB450C5B12051278A48364338854;T:D0BDCA4DE59252CF707E9294E37E419F73500A579E5FEE7D4B126D778D39FAE877CDAA46DC5AD84E3CBC280C43E59F2051361944A3E817A3AE8B3CC69B1263298A2D89A70BEF95ACF336A143B3E610D8


Elapsed: 00:00:00.01
12:51:29 SYS@pdb19c> alter user C##SCOTT1 identified by oracle;
select NAME,SPARE4 from user$ where name='C##SCOTT1';
User altered.

Elapsed: 00:00:00.17
12:51:38 SYS@pdb19c> 

NAME
--------------------------------------------------------------------------------------------------------------------------------
SPARE4
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
C##SCOTT1
S:49C37319470FF6309090A78EDA2E651580C83882D713E8B2C7D4DADCFF21;T:FE9832767BB0FE1CD6AAEDBEB8A947E64E13805D506577993A768D8CCE847799FD19E5C087690D221E5D0F9520EFA63C6C45CCA63A271C31BA3DE1F1F3280082E3469A7693394204F6EEE4799F080524


Elapsed: 00:00:00.01
12:51:38 SYS@pdb19c>