Daily life of a Data Engineer

#sql query to find all numbers that appear at least three times consecutively #dataanalysts #data

#sql Count occurence of character in a string / Count occurrence of word in a sentence #data analyst

#SQL Interview Question -Second highest salary using dense rank analytical function || 3rd highest

#sql interview question How to achieve Organisational hierarchy using self join from one table | DE

#sql Interview Question - What is the difference between COUNT(*), COUNT(1) and COUNT(-1)

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