ORA-600 kcratr_nab_less_than_odr这个错误,以前的认知里面,主要是11.2.0.1中比较常见,这次在12c中见到了,记录下
数据库版本

Oracle Database 12c Enterprise Edition Release 12.1.0.1.0 - 64bit Production
With the Partitioning, OLAP, Advanced Analytics and Real Application Testing options.
Windows NT Version V6.1  

数据库启动报错

Fri Apr 30 23:11:16 2021
Completed redo scan
 read 20 KB redo, 26 data blocks need recovery
Errors in file D:\APP\ADMINISTRATOR\diag\rdbms\orcl12c\orcl12c\trace\orcl12c_ora_5744.trc  (incident=28863):
ORA-00600: 内部错误代码, 参数: [kcratr_nab_less_than_odr], [1], [6872], [23015], [23017], [], [], [], [], [], [], []
Incident details in: D:\APP\ADMINISTRATOR\diag\rdbms\orcl12c\orcl12c\incident\incdir_28863\orcl12c_ora_5744_i28863.trc
Use ADRCI or Support Workbench to package the incident.
See Note 411.1 at My Oracle Support for error and packaging details.
Fri Apr 30 23:11:17 2021
Slave encountered ORA-10388 exception during crash recovery
Fri Apr 30 23:11:17 2021
Slave encountered ORA-10388 exception during crash recovery
Fri Apr 30 23:11:17 2021
Aborting crash recovery due to error 600
Fri Apr 30 23:11:17 2021
Errors in file D:\APP\ADMINISTRATOR\diag\rdbms\orcl12c\orcl12c\trace\orcl12c_ora_5744.trc:
ORA-00600: 内部错误代码, 参数: [kcratr_nab_less_than_odr], [1], [6872], [23015], [23017], [], [], [], [], [], [], []
Fri Apr 30 23:11:17 2021
Errors in file D:\APP\ADMINISTRATOR\diag\rdbms\orcl12c\orcl12c\trace\orcl12c_ora_5744.trc:
ORA-00600: 内部错误代码, 参数: [kcratr_nab_less_than_odr], [1], [6872], [23015], [23017], [], [], [], [], [], [], []
ORA-600 signalled during: alter database open...

这个故障处理比较简单参考:ORA-600 kcratr_nab_less_than_odr故障解决