[PDF] advanced sql queries interview questions

Additional Advanced SQL Interview Questions for Practice
  • Where is the MyISam table stored in the SQL database?
  • What do you understand about Joins in SQL?
  • What is the fundamental difference between CVarChar2 and Char datatype in SQL?
  • What is the difference between Unique Key and Foreign Key in SQL?
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  • What are advanced queries in SQL?

    This response claims that advanced SQL includes variables declaration, subqueries, the CASE WHEN statement, JOINS, the WHERE clause, and aggregate functions like MIN() and MAX().

  • How do I practice SQL queries for an interview?

    17 Best Platforms to Practice SQL. Looking to level up your SQL skills? 2HackerRank. From software engineering to data analytics, HackerRank is one of the best platforms for practicing coding interview questions. 3SQLPad. 4StrataScratch. 5DataLemur. 6LeetCode. 7Mode. 8SQLZoo.

  • What are complex SQL queries?

    They are difficult to characterize, but you'll know one when you see one. Complex SQL queries typically involve a fair bit of logic and advanced SQL features like transforming data, working with subqueries, aggregation, analytics, filtering, joining tables, or all of these features combined.

  • Lessons

    1JOINs and UNIONs. Combine information from multiple tables. local_library. 2Analytic Functions. Perform complex calculations on groups of rows. local_library. 3Nested and Repeated Data. Learn to query complex datatypes in BigQuery. local_library. 4Writing Efficient Queries. Write queries to run faster and use less data.
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