how to transcation
read moreBook Summary, "The Organized Mind" By Daniel J.Levitin #1
preface, information overflow
read moreQuery Primer 9. Subqueries
subquries to filter, generate data and create temporal table
read moreQuery Primer 8. Grouping and Aggregates
Aggregations in database
read moreQuery Primer 7. Data Generation, Manipulation, and Conversion
intro to data manipulates and DDL
read more6.1 Basic of figure
선과 각
read more5.3 statistics
확률
read more5.2 probabilities
경우의 수 그리고 확률
read more4.5 function composition and inverse function
합성함수와 역함수
read more4.4 rational and irrational functions
유리함수와 무리함수
read more