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What is sql basics?
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Let us suppose we have a table with structure in order empno empname empdesig empcountry and now i want to re-organize the columns of this table to empno empdesig empname empcountry how can i do this with queries ? assume that table contains the data.
Does pl/sql support create command?
Explain what is a view?
What is dense_rank?
what is a control file ? : Sql dba
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?
What is a database event trigger?
what is Complex index. how to create it?
Are stored procedures compiled?
What are the most important characteristics of pl/sql?
Why cross join is used?
What is PL/SQL table ?
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