Joins
SQL query for finding pairs of rows with same value for column C
AskAI
Write a SQL query to find all pairs of rows (a, b) such that a is in table A, b is in table B, and a and b have the same value for column C.
154
Jan 28
SQL Join for Two Tables with Common Column Values
AskAI
This technical problem deals with finding pairs of records from two tables that have the same value for a common column.
161
Nov 23
Average Employee Salary by Department
AskAI
This technical problem involves writing a SQL query to find the average salary of employees by department. The example input table includes columns for department, first name, last name, and salary. The expected output is a table with columns for department and average salary.
149
Nov 23
Finding Rows in Table A that have no Corresponding Rows in Table B
AskAI
Given two tables, "A" and "B", write a SQL query to find all the rows from table "A" that have no corresponding rows in table "B".
99
Nov 19
