What is a correlated sub-query? : sql server DBA
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What is the recommended interval at which to run statspack snapshots, and why?
what are the benefits of flashback feature?
What is dbcc? : sql server DBA
Illustrate how to determine the amount of physical CPUs a Unix Box possesses (LINUX and/or Solaris).
how can you create a user-defined lock?
What happens on checkpoint? : sql server DBA
Which dictionary view(s) would you first look at to understand or get a high-level idea of a given Advanced Replication environment?
internal architecture
Oracle client is not able to connect to Oracle server although tnsnames.ora file has valid enteries. Oracle error message is “ cannot resolve net service name”. Mention any three reasons.
when does an alert gets signaled?
orra 1555 what is this error,why it is occur?
Other than making use of the statspack utility, what would you check when you are monitoring or running a health check on an Oracle 8i or 9i database?