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joze-senegacnik.blogspot.com | ||
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dbamarco.wordpress.com
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| | | | | I just had some fun with Oracle 12c PDBs and snapshot clones. In the alert.log I found some unexpected errors "ORA-01157: cannot identify/lock data file XX". The file was part of a PDB which I used for testing. So I investigated that and found the file which was pretty small. So my assumption was that... | |
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hourim.wordpress.com
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| | | | | I like very much Tanel Poder snapper and Carlos Sierra SQLTXPLAIN. They represent valuable performance diagnostic tools. Unfortunately I am still waiting to find a customer site where I will be allowed or granted necessary privileges to install and to use them. There are client sites where I have been asked to tune queries without... | |
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alexzeng.wordpress.com
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| | | | | I am reading Expert Oracle Practices by Oracle Database Administration from the Oak Table. I'd like to summary and share what I learned. This chapter PL/SQL and the CBO by Jo?e Senega?nik is pretty interesting. It tells how to use oracle extensible optimizer to set the selectivity and the cost of PL/SQL functions. This will... | |
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jedleland.wordpress.com
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| | | "I like masks. No one knows if you didn't have time to brush your teeth last night." | ||
