Question

我正在尝试将其获取为：

SELECT * FROM "Employee" WHERE TIMESTAMPDIFF('YEAR', "BirthDate", "HireDate");

但出现下一个错误：

ERROR:  function timestampdiff(unknown, timestamp without time zone, timestamp without time zone) does not exist
LINE 1: SELECT * FROM "Employee" WHERE TIMESTAMPDIFF('YEAR', "BirthD...
                                   ^
HINT:  No function matches the given name and argument types. You might need to add explicit type casts.

我发现了另一种获取两个日期之间差异的方法，但是在我的说明中，它说我必须通过TIMESTAMPDIFF来获取。有人可以帮助我在哪里查看以及如何纠正我的错误吗？

Answer 1

您可以使用减号运算符

EXTRACT(DAY FROM (HireDate)-(BirthDate)) AS DateDifference

示例select date '2001-10-01' - date '2001-09-28'

DEMO IN FIDDLE

PostGrey Docs

如何使用TIMESTAMPDIFF获取PostgreSQL中两个日期之间的差异？

1 个答案: