I have an old app that let's users insert dates so everyone knows when they will be on vacation. Up until now, they had text field where they would enter text as they like ("1.1,5.1,21.1-25.1") or whatever they want as it is simple text field.
This kind of input excludes any chance of filtering or search.
I started playing with Yii not too long ago and this is first time i need to work with multiple dates and or date ranges.
What i need is advice on how to store those dates / date ranges into database? I know Yii has it's way to store single date (i have done it before), but i have no idea if it can work with date ranges and or multiple dates.
If any of you out there had similar problem i would apriciate your advice on how to store those dates and maybe extensions you used etc.
Of course i would like to make it user friendly with date pickers and search capabilities, but i'm taking it step by step. Once i have it stored correctly, searching and filtering wont be huge pain.
What i need is advice on how to store those dates / date ranges into database?
Well that depends on how do you want to use the date range. It depends on what is the criteria for searching. Because If you dont need to search the dates regularly then there may be some dirty ways to accomplish this task.
But if you need to search it frequently then you should make explicit columns for starting and end dates in the database table.By making explicit tables you can search in date ranges easily. for example you can run an sql query like
SELECT * FROM yourtable WHERE startDate<="some date" AND endDate>="some date"
NOTE:
You have to be careful about the format of date in your php code and format of date in database.
If you need to use date range just for calculation purposes then you can use simple php code to accomplish that.
$startDate = '2014-02-20';
$endDate = '2014-03-20';
$inputDate = '2014-02-28';
$start = strtotime($startDate);
$end = strtotime($endDate);
$input = strtotime($inputDate);
bool $isBetween=(($user >= $start) && ($user <= $end));
Yii way:
Actually there is not yii way to work with date range through one window. Actually each framework provide basic independent access to all attributes.That does not mean you cant change the behavior. Yes you can, but you need to code more. There are some extensions which you may find helpful in future
Adding a date range search for CGridView the easy way
How to filter CGridView with From Date and To Date datepicker
Related
I am looking for a datepicker that allows me to select multiple single dates and multiple date ranges all within the same calendar with the output being all single dates (also for the date ranges).
I found this https://dojo.telerik.com/ELARAlOW which looks great but requires a 999 euro purchase to access a full range of UI elements I don't need, just to have access to the calendar.
Anyone know of any open source, inexpensive or free datepicker which would work?
I have a typical calendar datepicker that allows us to select multiple dates. We use it to close out availability for specific dates. The problem is that the dates need to be selected one by one and that can be a pain as sometimes I need to block out weeks or entire months at a time. Need an easier way to select multiple dates in less clicks and output a list of single dates (so not just the start and end date of the range)
Context: I am using Microsoft Dynamics (CRM) and Eloqua to send email campaigns. I have a date field in CRM that I want to check against in Eloqua for a specific campaign. This campaign needs to check to see if the date field is <= today's date + 90 days. I am using the campaign UI in Eloqua, not doing anything programmatically at this point.
I have tried using the Compare Custom Object Fields decision in Eloqua by finding the date field, setting the comparator to dynamically on or before, and I want to make the compared value Today + 90 days. I'm not sure how to accomplish this in this type of Decision object because the only options I have to compare the date field to are Yesterday, Today, or Tomorrow. See image below:
I have also tried to use the Compare Date Decision object, but there is no dynamic comparison, just hard-coded date options.
The last thing I tried was a Wait step, but that only waits a hard-coded number of days rather than checking dynamically.
Has anyone run into this issue or know of a solution to this problem?
We were able to find an Eloqua Date App to download that adds a Date Decision step to the program builder which allowed us more flexibility with comparing dates in a custom range.
First of all im a starter,iam using eclipse.
I want to add current date and time of login in to db and search a day and find out the time between login and logout.
°What is the data type for the date colum in mysql ?
°Is it necessary separate column for date and time ?
°which one i want to import, java.util.date or java.sql.date ?
°In Java code simple date format or calender is better ?
Advanced thanks.....
You might want to read this:
Should I use field 'datetime' or 'timestamp'?
For example, if you have mysql populate the log record's date/time (using "DEFAULT CURRENT_TIMESTAMP" in your field definition), you will want to use timestamp. For certain situations where you fill a date value from your application, you may wish to use datetime. Be careful with timezones.
Here are the date functions in mysql:
https://dev.mysql.com/doc/refman/5.7/en/date-and-time-functions.html
DATEDIFF(), for example, will calculate the number of days between two datetimes. If you use unix timestamps, you can use standard arithmetic between the values to find the number of seconds between them, and then calculate minutes, hours, days, etc. by dividing appropriately.
This answer is focused on how to handle the dates in mysql. Not enough info to provide guidance on java.
I have a decimal date field (TDDATR) that is in the YYYYMMDD format.
I would like to create a field that is TDDATR + 30 days but I am unable to.
Using 'Define Results Field' I have tried a few things;
Simply doing this;
TDDATR + 30 DAYS
But it returned this error: Labeled duration not used correctly.
I tried using the DIGITS and SUBSTR commands to create a field in the DDMMYYYY format and then +30 days but got the same error.
Same as above but in the DD/MM/YYYY format - same error.
Using DATE(TDDATR) but all I see is +'s in the field.
Using DATE( ) on the fields created in step 2 and 3 - still get +'s
I've ran out of ideas - any help would be greatly appreciated.
Query/400 lacks a lot of the features that an SQL based interface has.
I'd urge you to consider switching to Query Manager (STRQM) which is a fully SQL based product. You can even convert Query/400 queries to Query Manager queries with the RTVQMQRY command by having the ALWQRYDFN parm set to *YES.
The other option that IBM is pushing is Web Query. Again, fully SQL based and you can convert Query/400 queries into it.
Having said that, the problem is that FLD + 30 DAYS only works when FLD is a DATE data type. Query/400 includes a DATE() function to convert non-date types into date. But it's very limited in that it only works with character fields formatted according to your job defaults. Assuming you're in the US, it'd only work with a character value of '07/01/15'.
You could do a lot of manipulation in Query/400 and end up with a result field that meets DATE()'s requirements. But a better solution would be to create an SQL view over your table and have your numeric date converted into a date data type in the view.
You can find code examples that show how to convert a numeric YYYYMMDD to a actual date data type in the view. However, I'd recommend create a user defined function (UDF) that will do the conversion for you. That will make it much easier to use in the view and to reuse in other places.
If you'd like, there's an open source package called iDate, that includes all the code required for convert to/from date data types.
Download that, install/compile it and your SQL view becomes
select ... idate(TDDATR,'*CCYMD') as TD_DATE
from myfile
The use of days is as follow
Field Expression
CURDATE_30 days(current(date)) + 30
The solution to your problem is: given the field A dec(8,0)
Field Expression
YYYYMMDD_ date(substr(digits(a),5,2)||'/'||
substr(digits(a),7,2)||'/'||
substr(digits(a),3,2))
NEXT_MONTH DAYS(YYYYMMDD_) + 30
Remember to check the date format in your job description. In the example the format is MDY or MM/DD/YY.
More info here
Based on the information here, I created the below 2 fields;
TDDIGI DIGITS(TDDATR)
TDDAT1 SUBSTR(TDDIGI,7,2)||'/'||
SUBSTR(TDDIGI,5,2)||'/'||
SUBSTR(TDDIGI,3,2)
From here I was able to create a date field;
TDDAT2 DATE(TDDAT1)
Which allowed me to perform the necessary calculations.
The format of TDDAT1 is based on your job description which can be found by;
WRKJOB
Option 2
Page down
Date format..: X
Mine was *DMY, so TDDAT1 was formatted based on this.
Upon logging into their accounts, each user has their login date and time stored to the database. What I was looking to do however is figure out the amount of days (or preferably convert into months if greater than a month) so that if a user views their profile they can see how active the band are. Also, this could benefit me in terms of keeping active profiles top of the agenda for content on the site so that it doesn't become stale from inactive users content filling up main page content.
I'm using ColdFusion so i'd be looking for a way to find for example how many days ago #lastLogin# was from #now()#. So say if the date of the last login was 23/04/2013 and todays date is 29/04/2013 it would read "Last Active, 1 day ago." However if the last login was 23/03/2013, it would read "Last Active, 1 month ago".
Anybody know how to do this? Thanks.
P.S I currently have no code from testing this as I have no idea where to start in terms of achieving this.
Use DateDiff
<cfset days = dateDiff("d", LoginDateVariable, now()) />
It's as simple as that.
P.S I currently have no code from testing this as I have no idea where
to start in terms of achieving this.
This doesn't answer your direct question but to help you know where to get started, I would strongly suggest reviewing the built in ColdFusion functions and tags that are available to you.
Tags
Tags by function
Functions
Functions by category
Also, Google searches usually land you at the docs, just add "coldfusion" to your search string. Searching google for coldfusion date functions yields very helpful answers, the first of which are a list of all ColdFusion date functions.
Dale's answer is spot on. But I would also suggest returning it as a variable with your query. Let the SQL server do the work. It's very efficient for those types of calculations. Not that CF can't do them well, too. But it's probably more appropriate for SQL to do that lifting. Especially if you're already returning the lastLogin date.
It would be similar to the CF solution:
SELECT ...., lastLogin, DATEDIFF(d, lastLogin, GETDATE()) AS LastLoginDays
FROM ....
WHERE ....
That would give you the number of days. You'd have to decide how you wanted to define a month if you wanted to break it out by month/day. That would get a bit more complex. You could write a SQL function that could be run on both dates and give you an accurate count of days/months/years since last login.
One other thing to keep in mind: Where are the dates being generated? When you insert loginDate into the database, are you doing a now() in CF before you insert it or are you doing a getDate() in SQL when you insert it? Again, I would let the database do your date logic, but you'd want to compare the two dates from the same source. For instance, if your loginDate was a database getDate() then you may not want to compare that to a CF now(). One goes by the datetime of the SQL server and the other goes by the datetime of the CF server. They could be different.