SQL DML:不正确的日期值(MySQL) [英] SQL DML: Incorrect date value (MySQL)
问题描述
我在数据库中创建了一个表:
I created a table in my database:
CREATE TABLE official_receipt(
student_no INT UNSIGNED,
academic_year CHAR(8),
trimester ENUM('1', '2', '3'),
or_no MEDIUMINT UNSIGNED,
issue_date DATE NOT NULL,
received_from VARCHAR(255) NOT NULL,
amount_of DECIMAL(8,2) NOT NULL,
issued_by VARCHAR(255),
doc_type ENUM('FULL', 'DOWN', 'INST') NOT NULL,
form_of_payment ENUM('CASH', 'INST') NOT NULL,
PRIMARY KEY (student_no, academic_year, trimester, or_no)
);
我插入了一些值:
INSERT INTO official_receipt(student_no , academic_year, trimester, or_no, issue_date, received_from, amount_of, issued_by, doc_type, form_of_payment)
VALUES
(201201121, 'AY201314', '1', 029940, 2013-05-21, 'NAME', 20000.00, NULL, 'DOWN', 'INST'),
(201201121, 'AY201314', '1', 029944, 2013-07-23, 'NAME', 8000.00, NULL, 'INST', 'INST'),
(201201101, 'AY201314', '1', 029941, 2013-05-21, 'NAME', 56650.00, NULL, 'FULL', 'CASH'),
(201201037, 'AY201314', '1', 029942, 2013-05-21, 'NAME', 56650.00, NULL, 'FULL', 'CASH'),
(201201142, 'AY201314', '1', 029943, 2013-05-21, 'NAME', 63800.00, NULL, 'FULL', 'CASH');
我收到此错误:
Error Code: 1292. Incorrect date value: '1987' for column 'issue_date' at row 1
我很沮丧,因为我已经遵循YYYY-MM-DD格式.有帮助吗?
I am quite stumped because I already followed the YYYY-MM-DD format. Any help?
推荐答案
如日期和时间文字:
MySQL可以识别以下格式的
DATE
值:
-
作为
'YYYY-MM-DD'
或'YY-MM-DD'
格式的字符串.允许使用宽松"语法:任何标点符号都可以用作日期部分之间的分隔符.例如,'2012-12-31'
,'2012/12/31'
,'2012^12^31'
和'2012@12@31'
是等效的.
As a string in either
'YYYY-MM-DD'
or'YY-MM-DD'
format. A "relaxed" syntax is permitted: Any punctuation character may be used as the delimiter between date parts. For example,'2012-12-31'
,'2012/12/31'
,'2012^12^31'
, and'2012@12@31'
are equivalent.
作为不带分隔符的字符串,其格式为'YYYYMMDD'
或'YYMMDD'
,但前提是该字符串作为日期有意义.例如,'20070523'
和'070523'
被解释为'2007-05-23'
,但是'071332'
是非法的(具有无意义的月份和日期部分),并变为'0000-00-00'
.
As a string with no delimiters in either 'YYYYMMDD'
or 'YYMMDD'
format, provided that the string makes sense as a date. For example, '20070523'
and '070523'
are interpreted as '2007-05-23'
, but '071332'
is illegal (it has nonsensical month and day parts) and becomes '0000-00-00'
.
以YYYYMMDD
或YYMMDD
格式的数字表示,只要该数字作为日期有意义.例如,19830905
和830905
被解释为'1983-09-05'
.
As a number in either YYYYMMDD
or YYMMDD
format, provided that the number makes sense as a date. For example, 19830905
and 830905
are interpreted as '1983-09-05'
.
因此,表达式2013-05-21
不是有效的MySQL日期文字(实际上是算术表达式,由两个减法组成:其结果为整数1987
).为了符合上面详述的一种文字格式,您必须以字符串形式引用日期文字和/或删除定界符.
Therefore, the expression 2013-05-21
is not a valid MySQL date literal (it is in fact an arithmetic expression, consisting of two subtractions: it results in the integer 1987
). In order to comply with one of the literal formats detailed above, you must either quote your date literal as a string and/or remove the delimiters.
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