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To restrict user operations at PDB levels and even more granular restriction, in 12.2 we can create Lock down profiles using “create lock down profile”. Here are some examples CREATE LOCKDOWN PROFILE test; ALTER LOCKDOWN PROFILE test DISABLE STATEMENT = (‘ALTER SYSTEM’); ALTER LOCKDOWN PROFILE test ENABLE STATEMENT = (‘ALTER SYSTEM’) CLAUSE= (‘flush […] In earlier versions of Oracle, when one want to convert a table to partition, one must use move or export/import method and rename it. Now in 12.2 release we can use ALTER table command to convert the table into Partitioned Table. Here is sample command it is from the documentation excerpt, ALTER TABLE test_table MODIFY […] Hi, You can now flashback PDB database exclusively with Local UNDO enabled. In earlier versions, Oracle shares the undo tablespace for CDB and PDB’s and creates a common view for transaction and instance recovery done at all CDB and PDB level. With local undo , Oracle has to change this a bit, it has to […] In 12.2 release, one of the coolest things that every DBA would love is to get history in SQLPLUS :). Now you can have history ON/OFF with SQLPLUS and see history SET HISTORY ON|OFF SHOW HISTORY Some other features like, FAST OPTION -F flag to set the ARRAYSIZE PAGESIZE STATEMENTCACHE all […] Oracle 12.2. is out and in Cloud first. 🙂 Out of all features one future must aware and important thing is long identifiers limitation relief , earlier any table or index cannot exceed more than 30 character length. Not sure how many of you have face issues with character limit, but I was, and many […] |
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Oracle 23c New Features for DBA's
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