We have some data in a DataTable and we are using the query like this to get what we need.
IEnumerable<Results> subResult = from query in datatable.AsEnumerable()
select new Results
{
Name = query.Field<string>("Name"),
Date = query.Field<DateTime?>("Date")
}
This above query returns what i need but date in full format (Ex: m/dd/yyyy hh:min:sec am/pm) but we need only date part of it(only mm/dd/yyyy need to be pulled in). When looked in the properties of this, couldn't find an implicit way to get it, please help me in getting this result. Thanks.
The DateTime class has all the properties you just mentioned. You should try to fix your display with the ToString("anyformatyouwant") formats.
What about this?
Date = query.Field<DateTime?>("Date").Date
This will give you just the date part:
IEnumerable<Results> sub-result= from query in datatable.AsEnumerable()
where new Results
{
Name = query.Field<string>("Name"),
Date = query.Field<DateTime?>("Date").Date
}
However if you just want to display the date somewhere (meaning you're not using this to do date grouping, etc. then I would just specify the display format in your UI layer.
AFAIK there is no Date Class in .net, if you want pure date you should write a Class for that, otherwise you can pull out the part as a string
DateTime.Now.Date.ToString("yyyy/MM/dd")
gives you the current date in string type, but if you get the .Date part it gives you a DateTime object which still has a time part showing AM 12:00:00:0 blah blah
Related
I want to extract the filename string as a DateTime column.
The code for it as follows:
#data =
EXTRACT
...
filename_date DateTime
FROM "/input/vga_{filename_date}.txt"
USING Extractors.Tsv(skipFirstNRows:1);
filename = vga_20171201.txt
whenever i have used datatype as string or int, it's work for me.
You have to specify .net date format strings along with the virtual column name to get that behaviour, like this:
#data =
EXTRACT someData string,
filename_date DateTime
FROM "/input/vga_{filename_date:yyyy}{filename_date:MM}{filename_date:dd}.txt"
USING Extractors.Tsv(skipFirstNRows : 1);
I have a series of files that are named like 1601.gz to represent January of 2016. {date:yyMM}.gz or {date:yy}{date:MM}.gz don't seem to
I am using laravel 5.0. I am getting data from controller as json. I am having value like this.
{"timstamp_date":"1434360957"},
I need to convert this unix timestamp value as Normal Date Like (15-06-2015) or (15-March-2015).
I have used Date(timstamp_date) but it is showing current time only. Not my timstamp date
You could use:
date("d-m-Y H:i:s", 1434360957);
EDIT
You could try;
var dateTime = new Date(1434360957*1000);
var formatted = dateTime.toGMTString();
https://jsfiddle.net/sp57Lnpf/
Use the date function. You need to specify the format as the first parameter:
date("d-m-Y", $timestamp_date)
http://php.net/manual/en/function.date.php
Laravel also comes with Carbon you could use that if you wanted to for further manipulation of the data if you so required it.
http://carbon.nesbot.com/docs/
I have to query a Date column with formatted values. Consider a scenario, same date with different timing "05/12/2012 02:00:00" and "05/12/2012 12:00:00". I have to query this collection such that resultant should have only date and not time "05/12/2012"(dd/MM/yyyy).
datasource.AsQueryable().Select("Date").Cast<object>().Distinct().ToList<object>();
I have used the above to get collection and i am not able to get the formatted collection.
Thanks.
Why not just juse the Date property of DateTime?
datasource.Select(d => d.Date.Date).Distinct()
I can't figure out what you're trying to do with the Cast.
I am using grails/groovy, and from my controller I am currently doing this for retrieving field from Mysql table containing datetime field
SimpleDateFormat Sformat = new SimpleDateFormat("yyyy-MM-dd");
String format_datenow = Sformat.format(new Date());
String format_dateprevious = Sformat.format(new Date() -31);
String markerCalcQuery =
"select sum(trans_cnt) as t_cnt, location from map2_data where fdate between '"+format_dateprevious+"' and '"+format_dateprevious+"' and res_id = "+res_id+" group by map2_data.location";
res_row=gurculsql.rows(markerCalcQuery);
The above query fails on Oracle11g with error
ORA-01843: not a valid month.
The error I feel is because MySQL stores date in this format: 2011-12-28 02:58:26 and Oracle stores date like this: 28-DEC-11 02.58.26.455000000 PM
How do I make the code generalised, one way is to make the database in Oracle store the date in the same format which I am thinking the way to handle this rather than from the code. If yes, how to change date format in the Oracle db?
Can I specify the format in the grails domain class for map2_data so that no matter what database it is we will have the datetime in the same format.
For several reasons (one being to code database independent - which is basically what you'd need ;-)), it is better to avoid creating SQL statements in your code. Try to use the Grails criteria DSL, e.g. something like
def criteria = YourDomainObject.createCriteria()
criteria.get {
between ('fdate', new Date()-31, new Date())
projections {
sum('trans_cnt')
groupProperty('location')
}
}
(ontested, but should help you get started).
If for some reason you can't use the criteria API, try the fallback to HQL (Hibernate Query Language). I'd always try to avoid to write plain SQL.
In Oracle, dates have their own type, they aren't strings. If you have a string, you should convert it to a date using the TO_DATE function.
String format_datenow = "TO_DATE('" + Sformat.format(new Date()) + "', 'YYYY-MM-DD')";
To make it work also in MySQL, you can create a stored function named TO_DATE that just returns its first argument.
I have produced a data table. All the columns are sortable. It has a date in one column which I formatted dd/mm/yyyy hh:mm:ss . This is different from the default format as defined in the doco, but I should be able to define my own format for non-american formats. (See below)
The DataTable class provides a set of
built-in static functions to format
certain well-known types of data. In
your Column definition, if you set a
Column's formatter to
YAHOO.widget.DataTable.formatDate,
that function will render data of type
Date with the default syntax of
"MM/DD/YYYY". If you would like to
bypass a built-in formatter in favor
of your own, you can point a Column's
formatter to a custom function that
you define.
The table is generated from HTML Markup, so the data is held within "" tags.
This gives me some more clues about compatible string dates for javascript:
In general, the RecordSet expects to
hold data in native JavaScript types.
For instance, a date is expected to be
a JavaScript Date instance, not a
string like "4/26/2005" in order to
sort properly. Converting data types
as data comes into your RecordSet is
enabled through the parser property in
the fields array of your DataSource's
responseSchema
I suspect that the I'm missing something in the date format. So what is an acceptable string date for javascript, that Yui dataTable will recognise, given that I want format it as "dd/mm/yyyy hh:mm:ss" ?
Define your locale
YAHOO.util.DateLocale["pt-BR"] = YAHOO.lang.merge(YAHOO.util.DateLocale, {
x:"%d/%m/%Y"
});
And your column settings as follows
{key:"columnKey", label:"columnLabel",
formatter:function(container, record, column, data) {
container.innerHTML = YAHOO.util.Date.format(data, {format:"%x"}, "pt-BR");
}
}
Javascript is able to construct a Date using a datestring in the following format:
new Date("April 22, 2010 14:15:23");
If you don't have control of the format of the datestring on the server-side (or don't want to change it) write a custom parsing function that takes the datestring and returns a newly constructed Date object.
You could either use this parser function when constructing the data represented in your DataTable.
rows:[{name:"John",born:customParser("[date string here"]},
{name:"Bill",born:customParser("[date string here"]}
]
-OR-
If you are using Yui's DataSource module (as indicated by your second grey box), you can register this parser function on the date field so that it will already be a Date() before the DataTable is constructed.
dataSource.responseSchema = {
. . .
fields: [
...
{ key: "birth_dt", parser: customParser }
...
]
....
}
You can pass dates from server to client in any format you wish, just in DataSource.responseSchema.fields set parser field to a function that will parse it. Look for stringToDate in dynamic data example.
On client side, you can display Dates in any other format, providing function in formatter field in respective ColumnDefs.
In order to set whole DataTable's date format, set its dateOptions option; alternatively, you can set ColumnDef.dateOptions, all same as described in YAHOO.util.Date.format() docs for oConfig parameter.
For current locale and whole DataTable, it should be
var myConfigs = {
initialRequest: ...
...
// http://developer.yahoo.com/yui/docs/YAHOO.util.Date.html
dateOptions: {format: '%c'}
};
You can also set sLocale there.