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SQL Interview Success: Unlocking the Top 5 Frequently Asked Queries

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 Here are the five top commonly asked SQL queries in the interviews. These you can expect in Data Analyst, or, Data Engineer interviews. Top SQL Queries for Interviews 01. Joins The commonly asked question pertains to providing two tables, determining the number of rows that will return on various join types, and the resultant. Table1 -------- id ---- 1 1 2 3 Table2 -------- id ---- 1 3 1 NULL Output ------- Inner join --------------- 5 rows will return The result will be: =============== 1  1 1   1 1   1 1    1 3    3 02. Substring and Concat Here, we need to write an SQL query to make the upper case of the first letter and the small case of the remaining letter. Table1 ------ ename ===== raJu venKat kRIshna Solution: ========== SELECT CONCAT(UPPER(SUBSTRING(name, 1, 1)), LOWER(SUBSTRING(name, 2))) AS capitalized_name FROM Table1; 03. Case statement SQL Query ========= SELECT Code1, Code2,      CASE         WHEN Code1 = 'A' AND Code2 = 'AA' THEN "A" | "A
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Career in analytics these 3 are top tips you need

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There is a big question to be successful in analytics career. I am giving most popular ideas to be successful in this analytics career.
tips on analytics career
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There are absolutely three...
The tip number one is you need to be familiar with different types of analytics.
  1. Web Analytics
  2. Financial Analytics
  3. Marketing Analytics
  4. Education Analytics
  5. Retail Analytics
  6. Health Care Analytics
The second one is you should have right kind of training at less expensive way.

In the booming Analytics Industry, one needs right course of training and experience, and working experience of case studies on selected analytics area, really boost your career. I am sure Udemy is offering lot of courses.

The third rule and idea is correct mindset

Assertive Communication 

BE PROACTIVE - Be Proactive is about taking responsibility for your life. You can't keep blaming everything on your parents or grandparents. Proactive people recognize that they are "response-able." They don't blame genetics, circumstances, conditions, or conditioning for their behaviour. They know they choose their behaviour. Reactive people, on the other hand, are often affected by their physical environment. They find external sources to blame for their behaviour.

Time management

PUT FIRST THINGS FIRST -What are "first things?" First things are those things you, personally, find of most worth. If you put first things first, you are organizing and managing time and events according to the personal priorities you established.

Positive thinking


THINK WIN WIN -Win-win sees life as a cooperative arena, not a competitive one. Win-win is a frame of mind and heart that constantly seeks mutual benefit in all human interactions. Win-win means agreements or solutions are mutually beneficial and satisfying.

 Video on 7 habits of effective people

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