Dba Sql Senior Interview Questions

506 dba sql senior interview questions shared by candidates

In a dataguard environment, say the primary database is having network issues and you failover to the standby database. Now the standby has become the new primary. Now if network issues were resolved on the old primary, how do you restore it and make it a physical standby ?
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Senior Oracle Database Administrator

Interviewed at StubHub

2.5
Sep 3, 2012

In a dataguard environment, say the primary database is having network issues and you failover to the standby database. Now the standby has become the new primary. Now if network issues were resolved on the old primary, how do you restore it and make it a physical standby ?

We have data that gets loaded once a week. With that in mind we have an application that clients enter search data in to and then SQL has to dynamically build a statement that has 25 different data points/relationships. It works fine, but takes upwards of 30 seconds to return the data to the client. You can not change the existing schema, but you can however add to it. Indexes are already present and optimized on all the different tables. What could you do to make this process much faster??
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SQL Database Administrator/Senior Developer

Interviewed at Morningstar

3.8
Apr 4, 2011

We have data that gets loaded once a week. With that in mind we have an application that clients enter search data in to and then SQL has to dynamically build a statement that has 25 different data points/relationships. It works fine, but takes upwards of 30 seconds to return the data to the client. You can not change the existing schema, but you can however add to it. Indexes are already present and optimized on all the different tables. What could you do to make this process much faster??

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