Which is faster count (*) or count 1?
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What is sql and its types?
declare lowerl number:= 1; upperl number:= 3; num varchar2(10); begin for i into lowerl..upperl loop num:=num||to_char(lowerl); if i=3 then upperl:=5; end loop; message(num); What will be the output ?
What are local and global Indexes and where they are useful.
How many clustered indexes can you have?
How do I view stored procedures?
how to calcuate the second highest salary of he employee
Which language is used in sql?
Is natural join and inner join same?
How to call the function and Procedure in trigger?
What are triggers, and when would you use them?
what are different types of collation sensitivity? : Sql dba
What is scalar and vector?
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