GitHub

19_window_function.sql

-- Preciso agrupar por IdCliente e dtDia, para aparecer os outros dias que o cliente fez as transações -- Se eu agrupar apenas por Idcliente os outros dias que o cliente fez a transações não ...
GitHub

18_window_function.sql

-- Se eu quiser, não preciso colocar o "PARTITION BY 1" -- Colocando o "PARTITION BY 1", significa o seguinte: -- “não particione nada; trate tudo como um único grupo”.
来自MSN

Tutorial for evaluating a piecewise function given three different values

👉 Learn how to evaluate a piecewise function. A piecewise function is a function which uses different rules for different intervals. When evaluating a piecewise function, pay attention to the ...
IEEE

Detecting Broadband Oscillation Using Two-point Window-function Interpolation

Abstract: Wideband oscillations represent an emerging stability issue in power systems with a high penetration of renewable energy sources. Rapid and accurate monitoring of oscillations is regarded as ...
来自MSN

Math tutorial for composing two functions

Learn how to compose two linear functions. To compose two functions means to express one of the functions as a function of the other function. This is done by replacing the input variable of one of ...