Use join to optimize aggregate subqueries-MySQL development skills (1) video tutorial-php.cn

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MySQL development skills (1) video tutorial

Chapter1 Recap
1-1 SQL development history
1-2 SQL statement classification
Chapter2 How to use the Join statement correctly
2-1 join clause—inner join
2-2 Clause—left outer join
2-3 join clause—right outer join
2-4 join clause—full join
2-5 join clause - cross join
2-6 Update table using join
2-7 Use join to optimize subqueries
2-8 Use join to optimize aggregate subqueries
Chapter3 How to implement group selection data
3-1 How to implement group selection data

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