What is difference between nchar and nvarchar?
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what is meant by databases
While inserting/updating million of records into a database table, how do I came to know how many records has been inserted or updated successfully so far?
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how to retrieve the top 3 salaries of the table using rownum
need to split a string into seperate values. eg. col1 col2 ---------- 100 - 'a,b,c' 200 - 'a,x,b,d,e' 300 - 'c' result: value count ------------- a - 2 b - 1 c - 2 etc.
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