What is mutating table error?
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What is the difference between delete and truncate commands?
What are sql*plus environment variables?
what are properties of a transaction? : Sql dba
four procedures is are there should i write their in a package
source destination distance chennai bangalore 500 bangalore chennai 500 hyd delhi 1000 delhi hyd 1000 bangalore hyd 800 Here chennai to bangalore and bangalore to chennai is same distance. and hyd and delhi also same criteria. Based on the distance i want to display only one row using sql query?
write a query to delete similar records in same table
What can I use instead of union in sql?
How collections are improve the performance?
What is a relationship and what are they?
Explain the two type of Cursors ?
Are dml statements autocommit?
What is procedure function?
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