sqlite：自 1/1/1970 以来如何将 select current_timestamp 作为毫秒值

Question

sqlite> select typeof(date('now'));
text
sqlite> select typeof(current_time);
text
sqlite> select typeof(current_date);
text

如何select当前date/time作为自Jan/1/1970以来的毫秒整数值？

Answer 1

strftime() 只给你几秒：

SELECT strftime('%s', 'now') * 1000;

Answer 2

来自SQLite doc：

Compute the time since the unix epoch in seconds (like strftime('%s','now') except includes fractional part):
SELECT (julianday('now') - 2440587.5)*86400.0; 

SELECT (julianday('now') - 2440587.5)*86400.0 * 1000;

DBFiddle Demo

sqlite：自 1/1/1970 以来如何将 select current_timestamp 作为毫秒值

sqlite: how to select current_timestamp as millisecond value since 1/1/1970

sqlite

current-time