Interview Q&A / SQL & DBMS

INTERVIEW Q&A · 69 QUESTIONS

SQL & DBMS interview questions

Joins, keys, normalisation, indexes and transactions for placement and backend interviews.

  1. How do the LIKE wildcards % and _ work in SQL?

    In LIKE, % matches any number of characters including none, and _ matches exactly one character. Use NOT LIKE to exclude, and ESCAPE to search for a literal % or _.

    BeginnerQuick answer1 min read