What are statistics, under what circumstances they go out
of date, how do you update them?
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What are the steps you will take to improve performance of a poor performing query?
Explain CREATE DATABASE syntax?
Describe what redo logs are.
Where do you find the default index fill factor and how to change it? : sql server DBA
i had backup last manday.now i need back monday to now ..how do get backup?
orra 1555 what is this error,why it is occur?
How would you determine what sessions are connected and what resources they are waiting for?
What does coalescing a tablespace do?
What purpose does the model database server? : sql server DBA
Explain an ORA-01555
Provide an example of a shell script which logs into SQLPLUS as SYS, determines the current date, changes the date format to include minutes & seconds, issues a drop table command, displays the date again, and finally exits.
i have 10gp file.now i need store in database..but database have only 7gb memory only..how do u store the file ?
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