如何在表格中插入日期？

Question

我有此表，但不确定输入日期的格式是什么

insert into Works (ClientID, CCode, BranchNo, EquipNo, HireDate)
select 001, 101, 01, 24500, '23-JAN-13' from dual union
select 002, 102, 01, 23200, '12-SEP-12' from dual union
select 003, 103, 01, 11500, '15-DEC-14' from dual union
select 004, 104, 01, 76830, '16-MAR-16' from dual union
select 005, 105, 01, 23760, '08-JUN-15' from dual

这不起作用，它只给我这个错误：

ORA-00904: "HIREDATE": invalid identifier

Answer 1

尝试使用有效的日期文字：

insert into Works (ClientID, CCode, BranchNo, EquipNo, HireDate)
select 001, 101, 01, 24500, date '2013-01-23' from dual union
select 002, 102, 01, 23200, date '2012-09-12' from dual union
select 003, 103, 01, 11500, date '2014-12-15' from dual union
select 004, 104, 01, 76830, date '2016-03-16' from dual union
select 005, 105, 01, 23760, date '2015-06-08' from dual

Answer 2

要插入DATE值：

将TO_DATE与适当的格式掩码一起使用：

TO_DATE('09-05-2020', 'DD-MM-YYYY')

或，

ANSI日期文字，它使用固定格式'YYYY-MM-DD'：

DATE '2020-05-09'