[英]How to check given date period is between two dates in MySQL and PHP
[英]How to check current date between two given dates in MySQL?
我需要MySQL查詢的幫助,以檢查兩個給定日期之間的當前日期並使用if條件。 以下是我的查詢語句:
$selMesQuery="select Subject, Message, PlainMessage, ARActiveTime, ARTimeZone, ARStartTime, AREndTime, ARID, UserId, DispLogo, ContentType from mytable";
ARActiveTime將為0或1 。
ARStartTime,AREndTime將采用日期時間格式,例如:2015-03-25 22:15:00
我該如何使用mysql查詢語句呢?
我可以通過執行給定的查詢,檢查ARActiveTime是0還是1,然后獲取當前日期,並使用php代碼檢查日期來做到這一點。 但是只能用mysql語句完成嗎?
可以在查詢中使用IF條件嗎? 我不確定。
任何幫助將不勝感激。
sample data of mysql table:
_________________________________________________________________________________
table header is as per the mysql query given
__________________________________________________________________________________
sub1 | msg1 | pmsg1 | 0 | 0 |0000-00-00 00:00:00|0000-00-00 00:00:00| 1 | 1 | 0 | 2
_________________________________________________________________________________
sub2 | msg2 | pmsg2 | 1 | 3 |2015-03-12 10:00:00|2015-03-25 22:00:00| 2 | 1 | 1 | 1
_________________________________________________________________________________
sub3 | msg3 | pmsg3 | 1 | 2 |2015-03-10 20:00:00|2015-03-15 20:00:00| 3 | 2 | 1 | 2
_________________________________________________________________________________
sub4 | msg4 | pmsg4 | 0 | 0 |0000-00-00 00:00:00|0000-00-00 00:00:00| 4 | 3 | 0 | 3
_________________________________________________________________________________
desired result:
_________________________________________________________________________________
sub1 | msg1 | pmsg1 | 1 | 1 | 0 | 2
_________________________________________________________________________________
sub2 | msg2 | pmsg2 | 1 | 3 |2015-03-12 10:00:00|2015-03-25 22:00:00| 2 | 1 | 1 | 1
_________________________________________________________________________________
sub3 | msg3 | pmsg3 | 1 | 2 |2015-03-10 20:00:00|2015-03-15 20:00:00| 3 | 2 | 1 | 2
_________________________________________________________________________________
sub4 | msg4 | pmsg4 | 4 | 3 | 0 | 3
_________________________________________________________________________________
嘗試這個
SELECT SUBJECT,
Message,
PlainMessage,
ARActiveTime,
ARTimeZone,
ARStartTime,
AREndTime,
ARID,
UserId,
DispLogo,
ContentType FROM mytable WHERE ARActiveTime = 1
UNION ALL
SELECT SUBJECT,
Message,
PlainMessage,
ARActiveTime,
NULL AS ARTimeZone,
NULL AS ARStartTime,
NULL AS AREndTime,
ARID,
UserId,
DispLogo,
ContentType FROM access_mgmt WHERE ARActiveTime = 0;
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