What is a data lock in oracle?
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What is a nvl function? How can it be used?
What is hot backup and logical backup?
Please explan Why static query is more faster than dynamic query ?
SQLERRM is a a. Constraint b. Pre Defined Exception c. Pseduocolumn d. Constant e. None of Above.
What is difference between SUBSTR and INSTR?
definition of cluster and non-clustered index?
What is oracle server autotrace in oracle?
What is Public Database Link ?
How to test null values?
What are triggers?Where are they used?
What are the differences between char and nchar in oracle?
What is a Synonym ?