I am tring to compare a date from a asp calendar control to a date in the table.... here's what i have... it doesn't like the == ?
var query = from details in db.TD_TravelCalendar_Details
where details.StartDate == calStartDate.SelectedDate
&& details.EndDate == calEndDate.SelectedDate
select details;
In order for your query to work both details.StartDate and calStartDate.SelectedDate must be typed as System.DateTime.
What error are you receiving? Most likely one of these properties is a string and will need to be parsed into a DateTime instance for comparison.
What is the Type of details.StartDate and details.EndDate? Is it String? Maybe that's the problem. If the database type is String you should Parse the Date String into a DateTime and compare it with the calendar's selected date then.
Related
I have a MySQL date stored in DATETIME format. So I would like to know how to use date() in my Doctrine QueryBuilder's where clause. For example, 2013-02-01 12:51:17 is the date in MySQL. But I need to retrieve only the date. This is what I have tried:
$qb = $this->getEntityManager()->createQueryBuilder()
->select('t.balance','a.id','t.date')
->from('TestMainBundle:Transaction','t')
->groupBy('a.id')
->orderBy('a.id')
->where("t.date in date('t.date') ");
return $qb->getQuery()->getResult();
I received the following error:
QueryException: [Syntax Error]: Error: Expected Doctrine\ORM\Query\Lexer::T_OPEN_PARENTHESIS, got 'date'
Hi You can use SUBSTRING to fix your probleme
->where('SUBSTRING(t.date, 1, 10) IN (:param)')
->setParameter('param', array('2017-04-06'))
As it is pointed out in the comments, you cannot use mysql-specific date() or date_format() functions in Doctrine.
But for the particular case of searching a certain date in the datetime field, you can treat a date like a string, and thus use LIKE operator
->Where('t.date LIKE :date')
->setParameter(':date', "$date%")
As of
But I need to retreive only the date
you just format the returned value using format("Y-m-d") method. i.e.
echo $row->getDate()->format("Y-m-d");
You don't need the "date" in your where clause.
Juste remove it like this :
->where('t.date in (:yourwanteddate)')
->setParameter('yourwanteddate', '2013-02-01 12:51:17');
I want to insert a Date object in mysql database, which has a Date type in the database as well. I am having problems inserting the date .
I have tried this code, but it seems codename one have a problem with it:
dateString s;
s = date.getCurrentMonth() + "/" + date.getCurrentDay() + "/" + date.getCurrentYear();
DateFormat formatter = new SimpleDateFormat("MM/dd/yyyy");
Date startDate = (Date) formatter.parse(s);
Please can you tell me how to do it ?
You don't need to format it. Just use this SQL Date Object instead of Date object from java.util package.
import java.sql.Date
// Creating a date object.
Date date = new Date();
In a database, make sure the data type of attribute 'date' is selected as "Date" also, not VarChar. Simply pass this sql package Date object into the database through query. :) It will save the date in a format.
I have a column with datetime data type and I want to build a SQL query in Zend Framework2 which compare date part with user input date.
Need to build similar part as DATE(datetime column) = '2014-09-16' with;
$select->where();
would be very grateful if someone could help on this.
Use like this:
$date = '2014.05.24';
$select->where('date(expecting_date) = "'.$date.'"');
You should use predicate expression for these kind of conditions, like :
$select = new \Zend\Db\Sql\Select(table name);
$select->where(new \Zend\Db\Sql\Predicate\Expression('DATE(datetime) = ?', '2014-09-16'));
i have a complex problem with Date field. Describe what i want to do:
I have field date1 as Date in my db.
#Temporal(TemporalType.DATE)
private Date date1;
I want to take data from this field and compare with current date.
#Query("SELECT date1 FROM Table io WHERE io.date1 >= DATE_FORMAT(CURRENT_DATE, '%Y-%m-%e')")
Date findAll2();
public boolean CheckDate1(){
currentDate = new Date();
date1 = getInterimOrdersRepo().findAll2();
if(currentDate.before(date1) || currentDate.equals(date1)){
System.out.println("TRUE");
System.out.println("currentDate = "+currentDate);
return true;
}
else{
System.out.println("FALSE");
return false;
}
}
but i have an error:
result returns more than one elements; nested exception is javax.persistence.NonUniqueResultException
When method return false i want do Update field data1 with " " empty data.
I using jsf, what i must to do?
It seems that you are trying to read several values from the table into a single variable, and that is the error.
findall2 returns an array (most likely) and u should read one of it's values - try reading first one.
Furthermore, I believe that you can skip the "DATE_FORMAT" in your query, and this is a very strange way to write a code. Not clear what u are trying to achieve here
I have the following linq to sql query:
DateTime linqdate = (from de in dvlist
where de.DataValue == value
select de.DateTime);
I want to get the date value form database in a datetime variable but I got the following error:
cannot implicitly convert type
'System.Collections.Generic.IEnumerable'
to 'System.DateTime'
any ideas where the problem is? thanks in advance
A Linq query returns an IEnumerable<T> that you can iterate or you can convert it to another type of object (using some extension methods)
In order to get what you want you should do something like this :
var dateTime=(from de in dvlist
where de.DataValue == value
select de.DateTime).FirstOrDefault();
this way you are returning the first element of your enumerable object, or the default value for that type (T, in this case DateTime) if there is no match in the query.