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how to find the second highest salary from emp table?209 261046
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There is a table, In one column it has implemented a index, but the index is disturbed by the regular dml statements.. but still we need to keep the index. how it is possible?1 4585
there is A table and B table in A table there 5 rows and in b table there are 2 rows i am firing query select * from a,b what will be the output?7 9335
As i want some model question paper in basic computer science and history please send me immediately sir
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