what is self join and what is the requirement of self join? : Sql dba
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if i perform any operation on views such as insert, delete etc will my base table get affected?????
What is rownum and rowid?
define data blocks ? : Sql dba
check whether all the emp numbers are indeed unique.
How to retrieve Duplicate Rows only in a Table? Suppose if a Table Name is "Education". It consists of multiple columns. Then if we insert rows into this table with duplicate records then how can we retrieve only duplicate records from that table?
29 Answers Alps, Aricent, Bank Of America, Wipro,
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