sqlite filter by day of the week in one statement

问题

I would like to filter by day of the week (Thursday in my example) in one statement. The next statement works (please note that date is a column name):

SELECT CAST (strftime('%w', date) AS Integer) = 4 FROM sales WHERE id=123;

However, when I include the above filter I get no results:

SELECT * FROM sales WHERE id=123 AND (SELECT CAST (strftime('%w', date) AS Integer) = 4 FROM sales WHERE id=123) = 1;

回答1:

Although I do not know why the previous code doesn't work I post an alternative working solution:

SELECT * FROM sales WHERE id=123 AND CAST (strftime('%w', date) AS Integer) = 4;

来源：https://stackoverflow.com/questions/45904943/sqlite-filter-by-day-of-the-week-in-one-statement