Why do we use coalesce function in oracle?
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How to rollback the current transaction in oracle?
Do you know about aggregate functions? What is row num function? Can it be used all databases?
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SELECT * FROM (SELECT TITLE FROM MOVIE ORDER BY RANK DESC) WHERE ROWNUM > 4; when i run the above query .it produces output as NO ROWS SELECTED.why ?plz any one help me
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I want a table like, no name address addr1 addr2 So i want columns like addr1,addr2 under address column. Can one please answer me. Advance Thanks.
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