How remove data files before opening a database?
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What are the predefined tablespaces in a database?
What is connection pooling in oracle?
25. Display the client number and the value of the highest value order placed by that client.
t1 col1 col2 nishi 5000 lucky 6700 akash 7000 i want that a query that when i insert 7000 it will show me data already present and data will not insert. if data is not present it will insert.
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17. Display the order number and average item cost for each order.
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How to select some columns from a table in oracle?