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I can't find it in DATETIME, but usually I define it as DATETIME without precision specifier.
DATETIME
When running Hibernate automatic DDL update, I noticed that it changes the table to DATETIME(6)
DATETIME(6)
It represents the precision of millisecond storage.
DATETIME(6) means that decimal milliseconds are stored to 6 decimal places. For example, 1970-01-01 17:51:04.789463.
The number must be in the range between 0 and 6.
This is explained in detail on the next pageof thetable of contents (emphasis mine):
DATETIME(0)
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
It represents the precision of millisecond storage.
DATETIME(6) means that decimal milliseconds are stored to 6 decimal places. For example, 1970-01-01 17:51:04.789463.
The number must be in the range between 0 and 6.
This is explained in detail on the next pageof thetable of contents (emphasis mine):
DATETIMEis equivalent toDATETIME(0).DATETIME(6)is not equivalent toDATETIMEorDATETIME(0).