Can there be 2 primary keys in a table?
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Explain the usage of WHERE CURRENT OF clause in cursors ?
Is sql easier than java?
Can a foreign key be a duplicate?
what is an associative array with example?
i have a table t1 a math 20 b phy 30 cchemisty 10 a math 40 b phy 23 c che 21 a math15 bphy 33 c che 56 write a quire to find out the max markr of each subject
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How do you assign Construct the where clause without concatenating Field,value pairs?
What is the difference between explicit and implicit cursors in oracle?
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write a query to delete similar records in different tables with same structure
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