What is dense_rank in sql?
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Is primary key an index?
Define join and name different types of joins?
what are the differences between get and post methods in form submitting. Give the case where we can use get and we can use post methods? : Sql dba
how can we find the number of rows in a table using mysql? : Sql dba
define data blocks ? : Sql dba
how a reference cursor works?what all adnvantages are gained with it..specify the situation?
What is the use of count (*) in sql?
Is the primary key an index?
How do you take the union of two tables in sql?
can i use global variables in stored procedure or function
what is explain plan?, given an example...
Why is partition used in sql?
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