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Extract Data from Start-Month and End-Month within one column
Posted on 2013-01-07
Hello experts,
I have an database, where the only column for date is Tabledate. I would like to do the query on this as start-month and end-month. For Example...
Can you suggest the query for this or any reference for this?
Thanks,
Shail
I have an database, where the only column for date is Tabledate. I would like to do the query on this as start-month and end-month. For Example...
TableDate
2012-02-05
2012-04-25
2012-05-15
2012-06-25
2012-09-11
2012-11-02
2012-12-09
Can you suggest the query for this or any reference for this?
Thanks,
Shail
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7 Comments
the question is about how exactly the user will enter the "month" ...
* with year or without year
* with month name or with month number
* what if the "start" month specified is "later" than start month?
what is the data type of that column? I presume date ...
http://www.experts-exchange.com/Database/Miscellaneous/A_1499-DATE-and-TIME-don%27t-be-scared-and-do-it-right-the-first-time.html
if the user specifies january (01) and october (10), the basic query is:
the rest should be simple ...
* with year or without year
* with month name or with month number
* what if the "start" month specified is "later" than start month?
what is the data type of that column? I presume date ...
http://www.experts-exchange.com/Database/Miscellaneous/A_1499-DATE-and-TIME-don%27t-be-scared-and-do-it-right-the-first-time.html
if the user specifies january (01) and october (10), the basic query is:
SELECT *
FROM yourtable
WHERE date_colum >= '2012-01-01'
and date_colum < '2012-11-01'
the rest should be simple ...
This article will explain it. http://www.experts-exchange.com/Web_Development/Web_Languages-Standards/PHP/A_201-Handling-date-and-time-in-PHP-and-MySQL.html
The question seems to assume that all selections will be in one year. That may not be the case, for example, I might want to see data from July 2011 through June 2012 (a typical fiscal year for non-profits in USA).
The overall logic goes this way... The client enters the date in any reasonable format and you use strtotime() and date() to convert to ISO-8601 DATETIME strings. Your query will use the BETWEEN clause, like this.
SELECT columns
FROM myTable
WHERE tabledate BETWEEN '$client_date_low' AND '$client_date_high'
The question seems to assume that all selections will be in one year. That may not be the case, for example, I might want to see data from July 2011 through June 2012 (a typical fiscal year for non-profits in USA).
The overall logic goes this way... The client enters the date in any reasonable format and you use strtotime() and date() to convert to ISO-8601 DATETIME strings. Your query will use the BETWEEN clause, like this.
SELECT columns
FROM myTable
WHERE tabledate BETWEEN '$client_date_low' AND '$client_date_high'
Hello Experts,
The month selection is numbers 01 to 12 and this is only for the year Jan 2012 to December 2012. If user select the month 04 as start-month and end-month as 02 then user will be prompted to select end -month greater then start month.
Thanks,
Shail
The month selection is numbers 01 to 12 and this is only for the year Jan 2012 to December 2012. If user select the month 04 as start-month and end-month as 02 then user will be prompted to select end -month greater then start month.
Thanks,
Shail
OK, then the constructed data strings for use in the query will consist of a "date" pattern like this.
2012-XX-01 will be the start date, where XX is the client-selected low month.
2012-YY-t will be the end date, where YY is the client-selected high month. The "t" is the date() pattern for the last day of the month.
2012-XX-01 will be the start date, where XX is the client-selected low month.
2012-YY-t will be the end date, where YY is the client-selected high month. The "t" is the date() pattern for the last day of the month.
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