Joining Tables
Find Customers Who Have Purchased Both Product A and Product B
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This technical problem involves finding customers who have purchased both Product A and Product B from a database. The customer names must be outputted.
"Finding Rows in A that Match Rows in B"
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This technical problem deals with finding rows in table A that have a corresponding row in table B. An example input and output is provided.
"Authors Who Have Written Books With 'Cat' in the Title"
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To find the names of all authors who have written at least one book with the word 'cat' in the title, join the Books and Authors tables on author_id and select the name field from the Authors table.
Find the total number of products ordered for each product.
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This problem is asking for a SQL query to calculate the total number of products ordered for each product in a given database. The table "products" lists the products available, while the table " orders" lists the products that have been ordered. The desired output is a table listing the total number of products ordered for each product.
Joining tables to find users who have placed an order.
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This technical problem involves joining two tables, "users" and "orders", in order to find the names of all users who have placed an order. The example input and output show the expected format of the query results.
Joining Two Tables
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Write a SQL query to join two tables and return all rows from the first table and the corresponding values from the second table.
Joining Two Tables of Data
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To join two tables of data together, use the SQL query: SELECT * FROM table1 JOIN table2 ON table1.id = table2.id
SQL Query to Return Names of Marketing Employees with 5+ Years of Experience
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Write a query to return the names of employees who work in the Marketing department and have at least 5 years of experience.
