[Oracle工程师手记]X$KCCAL表

通过如下的测试，发现 X$KCCAL 存储的就是 archive log 的信息。

SQL> SELECT alnam
FROM x$kccal
WHERE alnam IS NOT NULL;

no rows selected

SQL>
SQL> alter system switch logfile;

System altered.

SQL> SELECT alnam
FROM x$kccal
WHERE alnam IS NOT NULL;


ALNAM
--------------------------------------------------------------------------------
/refresh/home/app/12.2.0.1/oracle/product/12.2.0.1/dbhome3/dbs/arch1_6_952836426
.dbf

SQL>