AdventureWorks Database: Find all products that have NULL in the weight column
SQL Query - AdventureWorks: Exercise-186 with Solution
186. From the following table write a query in SQL to find all products that have NULL in the weight column. Return name and weight.
Sample table: Production.Product
SELECT Name, Weight FROM Production.Product WHERE Weight IS NULL;
name |weight| -------------------------------+------+ Adjustable Race | | Bearing Ball | | BB Ball Bearing | | Headset Ball Bearings | | Blade | | LL Crankarm | | ML Crankarm | | HL Crankarm | | Chainring Bolts | | Chainring Nut | | Chainring | | Crown Race | | Chain Stays | | Decal 1 | | Decal 2 | | ...
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SQL: Tips of the Day
ROW_NUMBER() in MySQL
SELECT t0.col3 FROM table AS t0 LEFT JOIN table AS t1 ON t0.col1=t1.col1 AND t0.col2=t1.col2 AND t1.col3>t0.col3 WHERE t1.col1 IS NULL;
Ref : https://bit.ly/3VX3Jzv
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