One day off for yesterday because of overtime work. Again, two questions for today. Question 1:Consecutive Numbers Source: Leetcode Write a SQL query to find all numbers that appear at least three times consecutively. For example, given the above Logs table, 1 is the only number that appea...
Practice SQL querys with an online terminal. Solve SQL query questions using a practice database. Learn and improve your SQL skills.
13 [ctrl + q]: Auto-format the SQL 14 */ View All Questions Start Close SQL Window Functions Introduction to SQL Window Functions The aggregate functions (SUM, AVG, COUNT, MIN, MAX, etc) perform calculations across a set of rows and returns a single output row The following query uses...
The best way we learn anything is by practice and exercise questions. We have started this section for those (beginner to intermediate) who are familiar withSQL. Hope, these exercises help you to improve your SQL skills. Currently following sections are available, we are working hard to add m...
Here's the correct SQL query: ```sql SELECT make, model, price_per_day FROM cars WHERE price_per_day <= 100; ``` This query will select the `make`, `model`, and `price_per_day` columns from the `cars` table, and only include rows where the `price_per_day` is less than or...
Click Here to get 20 Interview Questions for Tech Mahindra…. 21.how to write sql query for the below scenario I/p:ORACLE O/p: O R A C L E i.e, splitting into multiple columns a string using sql. Answer: Select Substr(‘ORACLE’,Level,1) From Dual ...
SQL Advancedincludes query optimization, modeling, indexing, and window functions. You can access the whole collection of practice questions and assessments with a free account on the platform. 2. SQLPad SQLPadoffers practice questions in the following broad areas: ...
MySQL Common commands and some practice questions. Contribute to LuoLiangDSGA/Guo-MySQL-Practice-Questions development by creating an account on GitHub.
Practice Problem Solving with SQL: Strata Scratch: https://www.stratascratch.com/ HackerRank: https://www.hackerrank.com/domains/sql SQL Query Interview Questions: https://www.youtube.com/watch?v=uAWWhEA57bE Databases: Database Design: https://www.youtube.com/watch?v=ztHopE5Wnpc MySQL: htt...
The best way we learn anything is by practice and exercise questions. We have started this section for those (beginner to intermediate) who are familiar withNoSQLandMongoDB. Hope, these exercises help you to improve your MongoDB query skills. Currently, following exercises are available based on...