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Learn more. Ask Question. Asked 3 years, 1 month ago. Active 3 years, 1 month ago. Viewed 15k times. Improve this question. Doctor Henry Doctor Henry 1 1 gold badge 1 1 silver badge 5 5 bronze badges. I do not see the contradiction. I want to remove rows exists in left-side base table, but not exists at least in one of right-side tables. It's a few different than what you say — Doctor Henry.
It's a few different than what you say It's a few different than what you say in a question text. But it is your task, and you can do everything you want with it, it is. Show 1 more comment. Active Oldest Votes. Two options: 1 If you want to filter out rows that have no match in the right table, skip the LEFT keyword and use the regular inner join.
If there is no match, the columns of the row from the right table will contain NULL. See the following tables customers and orders in the sample database. Alternatively, you can save some typing by using table aliases :. Because both table customers and orders have the same column name customerNumber in the join condition with the equal operator, you can use the USING syntax as follows:.
What is the structure of table2? Add a comment. Active Oldest Votes. Improve this answer. Andrew GarethD GarethD Pred Pred 8, 3 3 gold badges 22 22 silver badges 45 45 bronze badges. Hope this will help you. Chris Chris 7, 9 9 gold badges 38 38 silver badges 66 66 bronze badges. Ankit Bajpai Ankit Bajpai Edper Edper 8, 1 1 gold badge 24 24 silver badges 46 46 bronze badges.
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