A lot of SQL questions. General knowledge about how you would handle large amounts of data.
Data Interview Questions
132,740 data interview questions shared by candidates
SQL. And why the number of likes are increasing?
What is 19+NULL in SQL
SQL questions: 1) What is the default order of ORDER BY? 2) What is the result of 1+null? 3) How to select from two tables? 4) What command id used together with GROUP BY?
Calculating percentage of sales percentage of non dat and regular products Calculating percentage of sales that matched the start date and end date of the promotion Fill the none values in a list with the previous non none value
Given a list, create a new list that does not include duplicate values of the original list.
try to get a pattern out of string or json. ask you to translate numbers from 1 to 100 to names of numbers ( for example 34 translated to thirty-four). you need to come with a solution within 10 seconds, I am able to get it done within 2 minutes. That's not fast enough.
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