What is cursor in pl sql?
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Define union, minus, union all, intersect ?
What is composite primary key in sql?
What is left join in postgresql?
Types of joins ?
Why is theta join required?
What is full join?
What is sqlservr exe?
Write a sql query to find the names of employees that begin with ‘a’?
Explain what is a field in a database and record in a database?
How does left join work in sql?
i have 2 table table one 4 columns respective values a1 7,a2 6,a3 8 ,a4 12 & table two 4 colums respective values a1 7,a2 6,a3 8,a4 15.if table one & table two 3 colums same then 4th column values 1)Qes diff >5 then print 5 * diff value 2)Que diff <5 print 5
Do prepared statements prevent sql injection?
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