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https://github.com/wtlow003/stratascratch-daily

Daily practise in preparation for SQL technical assessments.
https://github.com/wtlow003/stratascratch-daily

pandas python sql

Last synced: about 9 hours ago
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Daily practise in preparation for SQL technical assessments.

Host: GitHub
URL: https://github.com/wtlow003/stratascratch-daily
Owner: wtlow003
License: mit
Created: 2021-01-23T17:47:19.000Z (almost 4 years ago)
Default Branch: main
Last Pushed: 2022-09-27T14:55:23.000Z (about 2 years ago)
Last Synced: 2023-05-01T20:18:09.794Z (over 1 year ago)
Topics: pandas, python, sql
Homepage:
Size: 73.2 KB
Stars: 22
Watchers: 3
Forks: 24
Open Issues: 0
Metadata Files:
- Readme: README.md
- License: LICENSE

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README

        # SQL Technical Interview Preparation

This repository contains solutions to questions which have been attempted on [StrataScratch](https://www.stratascratch.com) to hone my ability in tackling complex logic when tackling SQL technical interviews.

The practise schedule consists of tackling at least 1 *easy*, *medium*, and *hard* questions.

## Completed Questions: `34`

|  #  | Title | Difficulty | Solution |

|:---:|:-----:|:----------:|:--------:|

|10042|[Top 3 Wineries In The World](https://platform.stratascratch.com/coding/10042-top-3-wineries-in-the-world?code_type=1)|Hard|[Link](https://github.com/wtlow003/stratascratch-daily/blob/main/sql/10042.sql)

|10073|[Favorite Host Nationality](https://platform.stratascratch.com/coding/10073-favorite-host-nationality?python&utm_source=youtube&utm_medium=click&utm_campaign=YT+description+link)|Medium|[Link](https://github.com/wtlow003/stratascratch-daily/blob/main/sql/10073.sql)

|10087|[Find all posts which were reacted to with a heart](https://platform.stratascratch.com/coding/10087-find-all-posts-which-were-reacted-to-with-a-heart?python=)|Medium|[Link](https://github.com/wtlow003/stratascratch-daily/blob/main/sql/10087.sql)

|10172|[Best Selling item](https://platform.stratascratch.com/coding/10172-best-selling-item?code_type=1)|Hard|[Link](https://github.com/wtlow003/stratascratch-daily/blob/main/sql/10172.sql)

|10176|[Bikes Last Used](https://platform.stratascratch.com/coding/10176-bikes-last-used?python=)|Easy|[Link](https://github.com/wtlow003/stratascratch-daily/blob/main/sql/10176.sql)

|10283|[Find the top-ranked songs for the past 30 years.](https://platform.stratascratch.com/coding/10283-find-the-top-ranked-songs-for-the-past-30-years?python=)|Medium|[Link](https://github.com/wtlow003/stratascratch-daily/blob/main/sql/10283.sql)

|10295|[Most Active Users On Messenger](https://platform.stratascratch.com/coding/10295-most-active-users-on-messenger?python=)|Medium|[Link](https://github.com/wtlow003/stratascratch-daily/blob/main/sql/10295.sql)

|10310|[Class Performance](https://platform.stratascratch.com/coding/10310-class-performance?code_type=1)|Medium|[Link](https://github.com/wtlow003/stratascratch-daily/blob/main/sql/10310.sql)

|10315|[Cities With The Most Expensive Homes](https://platform.stratascratch.com/coding/10315-cities-with-the-most-expensive-homes?python=)|Medium|[Link](https://github.com/wtlow003/stratascratch-daily/blob/main/sql/10315.sql)

|10324|[Distances Traveled](https://platform.stratascratch.com/coding/10324-distances-traveled?python=)|Hard|[Link](https://github.com/wtlow003/stratascratch-daily/blob/main/sql/10324.sql)

|10351|[Activity Rank](https://platform.stratascratch.com/coding/10351-activity-rank?python=)|Hard|[Link](https://github.com/wtlow003/stratascratch-daily/blob/main/sql/10351.sql)

|10352|[Users By Avg Session time](https://platform.stratascratch.com/coding/10352-users-by-avg-session-time?python=)|Medium|[Link](https://github.com/wtlow003/stratascratch-daily/blob/main/sql/10352.sql)

|10353|[Workers With The Highest Salaries](https://platform.stratascratch.com/coding/10353-workers-with-the-highest-salaries?python=)|Medium|[Link](https://github.com/wtlow003/stratascratch-daily/blob/main/sql/10353.sql)

|10354|[Most Profitable Companies](https://platform.stratascratch.com/coding/10354-most-profitable-companies?code_type=1)|Medium|[Link](https://github.com/wtlow003/stratascratch-daily/blob/main/sql/10354.sql)

|10302|[Distance Per Dollar](https://platform.stratascratch.com/coding/10302-distance-per-dollar?python=)|Hard|[Link](https://github.com/wtlow003/stratascratch-daily/blob/main/sql/10302.sql)

|10301|[Expensive Projects](https://platform.stratascratch.com/coding/10301-expensive-projects?python=)|Medium|[Link](https://github.com/wtlow003/stratascratch-daily/blob/main/sql/10301.sql)

|2002|[Submission Types](https://platform.stratascratch.com/coding/2002-submission-types?python=)|Easy|[Link](https://github.com/wtlow003/stratascratch-daily/blob/main/sql/2002.sql)

|2007|[Rank Variance Per Country](https://platform.stratascratch.com/coding/2007-rank-variance-per-country?python&utm_source=youtube&utm_medium=click&utm_campaign=YT+description+link)|Hard|[Link](https://github.com/wtlow003/stratascratch-daily/blob/main/sql/2007.sql)

|2012|[Viewers Turned Streamers](https://platform.stratascratch.com/coding/2012-viewers-turned-streamers)|Hard|[Link](https://github.com/wtlow003/stratascratch-daily/blob/main/sql/2012.sql)

|2019|[Top 2 Users With Most Calls](https://platform.stratascratch.com/coding/2019-top-2-users-with-most-calls?)|Medium|[Link](https://github.com/wtlow003/stratascratch-daily/blob/main/sql/2019.sql)

|2049|[Total Order Per Status Per Service](https://platform.stratascratch.com/coding/2049-total-order-per-status-per-service?python=)|Easy|[Link](https://github.com/wtlow003/stratascratch-daily/blob/main/sql/2049.sql)

|2052|[User Growth Rate](https://platform.stratascratch.com/coding/2052-user-growth-rate?python=)|Medium|[Link](https://github.com/wtlow003/stratascratch-daily/blob/main/sql/2052.sql)

|2055|[Average Customers Per City](https://platform.stratascratch.com/coding/2055-average-customers-per-city?python=)|Medium|[Link](https://github.com/wtlow003/stratascratch-daily/blob/main/sql/2055.sql)

|2060|[Manager of the Largest Department](https://platform.stratascratch.com/coding/2060-manager-of-the-largest-department?python=)|Medium|[Link](https://github.com/wtlow003/stratascratch-daily/blob/main/sql/2060.sql)

|2062|[Questions in Second Quarter](https://platform.stratascratch.com/coding/2062-questions-in-second-quarter?python=)|Medium|[Link](https://github.com/wtlow003/stratascratch-daily/blob/main/sql/2062.sql)

|2063|[Change of Currency Exchange Rates](https://platform.stratascratch.com/coding/2063-change-of-currency-exchange-rates?python=)|Easy|[Link](https://github.com/wtlow003/stratascratch-daily/blob/main/sql/2063.sql)