What is the use of index in sql?
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Difference between global and parameter variables?
what are the different tables present in mysql? : Sql dba
how to use 'mysql' to run sql statements? : Sql dba
Why sql query is slow?
what are wild cards used in database for pattern matching ? : Sql dba
Explain spool.
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What is scope and visibility in PL/SQL?
If I have a table T with 4 rows & 2 columns A & B. A has values 1,2,3,4. and B has 10,20,30,40. Write an Update SQL query which can Swap the values of A & B for all records. (Do not use a sub-query)
What is clustered and non-clustered indexes?
What is pl sql collection?
Describe the Index, Types of index, At what situation we have used? Which one s better than others?
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