What is union and union all keyword in sql and what are their differences?
In table a 1lakh data is present,in table b 20 thousand data is present, to get unique data from table a and b which join to be considered. whether right outer join or left inner join.
Does pdo prevent sql injection?
Can we use distinct and group by together?
what is a composite primary key ? : Sql dba
What is a stored procedure in sql with example?
State few characteristics of pl/sql?
What is nvarchar in sql?
What is a mutating table
What is scalar and vector?
What is the process of debugging?
Is id a reserved word in sql?
What are the types pl/sql code blocks?