What is backup in Oracle?
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What is difference between SUBSTR and INSTR?
What is a partition in oracle?
Please HELP me its urgent? If i want to EXPORT data from SQL server to ORACLE 11g then how can I replicate data from SQL to ORACLE?
Explain the use of compress option in exp command.
In oracle there is column command, how will you explain that?
What is the difference between count (*), count (expression), count (distinct expression)?
What are a cluster and non-cluster index?
Define Normalization with example?
What is merge statement used for?
difference between oracle8i and oracle9i
can anyone help me ? an index has been done on the primary key of a table. an update operation was performed on that table. now my question is 1> what abt the performance ? means faster or slower due to indexing ? 2> does the operation affect to the primary key constraint ?
What is a Public Synonyms ?