How to unlock the sample user account in oracle?
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Can a formula column referred to columns in higher group ?
when a grant option is encountered for a table EMP to a peer sitting beside you who has already having the table of that name (EMP), then what is the result?
What is a Database instance ? Explain?
Can we protect our pl/sql source code?
When do you get a .pll extension in oracle?
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waht is referencial integrity?
What is a sub query? Describe its types?
What are the roles of dba?
When do we use group by clause in a sql query?
What is analyze command used for?
you are sorting a table using "order by"(descending) clause of a column which contains a null value...whether that row containing null value will come first or last in the output??