Oracle Interview Questions, Process, and Tips for Experienced

Find the longest subsequence in a string without repeating characters.

• Use a sliding window approach to keep track of the characters seen so far.

• Update the start index of the window when a repeating character is encountered.

• Keep track of the longest subsequence length seen so far.

Auto event wireup is a feature in ASP.NET that automatically connects events to event handlers based on naming conventions.

• Auto event wireup simplifies event handling by automatically connecting events to event handlers without needing to manually wire them up in code.

• In ASP.NET Web Forms, auto event wireup is enabled by default, but can be disabled by setting the AutoEventWireup attribute to false in the Page directiv...read more

Dense rank in SQL is a function that assigns a rank to each row in a result set with no gaps between the ranks.

• Dense rank is used to assign unique ranks to each row in a result set, with no gaps between the ranks.

• It is similar to the RANK function, but does not leave gaps in the ranking sequence.

• For example, if two rows have the same value and are ranked 1 and 2, the next row will be ranked 3, not 2.