Joining Tables
Joining Tables: A and B
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This technical problem deals with joining two tables together in order to find all the rows in Table A that have a match in Table B.
Employees in departments with more than 5 employees
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This technical problem involves writing a SQL query to find the names of employees who work in departments with more than 5 employees. An example input is given, along with the expected output.
Given two tables, A and B, write a SQL query to find all the rows in A that...
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Write a SQL query to find all the rows in table A that have a corresponding row in table B with the same value in column x.
Query to return all rows from Table1 that have a matching row in Table2
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Write a query that returns all rows from Table1 that have a matching row in Table2.
Find all employees in the Sales department with a salary greater than $50,000
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Write a query that returns the id, first name, and last name of all employees who work in the Sales department and have a salary greater than $50,000.
Customer Orders by Customer
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This technical problem deals with finding the total number of orders for each customer, using data from the "customers" and "orders" tables.
Find all rows in A that have a matching row in B
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This technical problem deals with finding all rows in table A that have a matching row in table B. An example is given of input and output tables.
A and B Join on Column X
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Given two tables, A and B, write a SQL query to find all the pairs of records (a, b) such that a and b have the same value for column X.
