How many types of sql are there?
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Explain about various levels of constraint.
What is the difference between a query and a report?
What are the rules to be applied to nulls whilst doing comparisons?
What is database sql?
what are the advantages of cursors than procedures?
what are all the different normalizations? : Sql dba
Is left join faster than join?
What is before and after trigger?
Can we join two tables without common column?
What is execution plan in sql?
How can I delete duplicate rows?
Source is Sales Table: Sno Prod Sales Sales_Amount 1 A 10 2000 2 A 20 1000 3 C 10 3000 4 D 30 4000 5 A 20 1000 Target : Sales_Count T_Sales_Amt Sales_Count(A) T_Sales_Amt(A) 90 11000 50 4000 In single query, pls tell me.
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