Cyber Security
Another excellent On Point episode from WBUR in Boston. This one is about the danger to US national security of cyber attacks.
Date Dimension Table Definition
A few weeks ago I found this definition of a date dimension table, created by a smart person named Nicholas Duffy . I'm placing it here so I can find it easily. DROP TABLE IF EXISTS dim_date; CREATE TABLE dim_date ( date_dim_id INT NOT NULL, date_actual DATE NOT NULL, epoch BIGINT NOT NULL, day_suffix VARCHAR(4) NOT NULL, day_name VARCHAR(9) NOT NULL, day_of_week INT NOT NULL, day_of_month INT NOT NULL, day_of_quarter INT NOT NULL, day_of_year INT NOT NULL, week_of_month INT NOT NULL, week_of_year INT NOT NULL, week_of_year_iso CHAR(10) NOT NULL, month_actual INT NOT NULL, month_name VARCHAR(9) NOT NULL, month_name_abbreviated CHAR(3) NOT NULL, quarter_actual INT NOT NULL, quarter_name VARCHAR(9) NOT NULL, year_actual INT NOT
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