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Select Date Only From Date Time Field


if I have "Date Time" field , How can I get the Date only from this field.




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Related Forum Messages:
Date/Time Field Update Only Date
I have a field(tmMessage) in a table, it's a date/time struct.
it looks like "2003-09-21 15:52:35"
All I want to do is change the date in this field.
I want the time to stay the same.

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Date Field, Time Field, Sort By Date And Time
I have a MySQL date field (e.g 13/12/2006) and a MySQL time field (e.g.13:00) in the same row.

I'd like to join these two fields to make a date/time field (e.g. 13:00 13/12/2006) on the fly and to be able to sort the query results on the resulting field.



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Date/time Field Type
I want a field to automatically record the date/time each time a record is written to the db. Do I want that field to be of type DATE, DATETIME, TIMESTAMP…? My book is less than clear.

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Select Between Date And Time
I have field date and time respectively. I want to select date between (date1 and time1 > 17) and (date2 < 17)

I tried two ways but doesn't work, please see code below.
SELECT * from purchases_suppliers WHERE (date_invoice >= '2009/02/25' and time_invoice > 17) AND (date_invoice <= '2009/02/27' AND time_invoice < 17)

SELECT * from purchases_suppliers WHERE date_invoice between ('2009/02/25' ANd time_invoice > 17) AND ('2009/02/27' AND time_invoice < 17 )

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Selecting Date Time Field, Difference In Minutes
I wonder if is there any way to select from a table all the records
which has a Date Field that is at least five minutes old?

In other words, I have a table with a date field and I need to select
all the records that are older than five minutes, has their date field
updated before five minutes.

Usually I do it with days by using the to_days() function and comparing
the date to now: (to_dayss(now()) - to_days(somedate)).

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Combining Date And Time Fields Into A Datetime Field
I have a table with separate Date and Time fields.

Is there a way to either:

1. Convert the date and time fields into a combined datetime field?

or

2. Create a datetime value in the select statement so I can select all records before a given date and time?

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Select Date And Time In Same Column
I have table called mytable and there I have column named time
example:
time
2006-07-10 10:28:06
2006-08-18 20:48:22
2006-09-15 12:11:41
2006-10-12 23:06:02

is there any possibles that I can make query example:
SELECT *FROM mytable WHERE date BETWEEN 2006-07-10 AND 2006-09-15 AND time
BETWEEN 10:28:06 AND 12:11:41

My point is can I make query where I first find between date and after that I make
query where I find between time when information is in the same column?

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Select Date Ignoring Time
Im using a datetime fields eg. "2006-08-07 16:01:09" and I want to select dates... eg. "select * from mytable where mydate="2006-08-07" ignoring the time.

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Date Format Error :: Not A Valid Date And Time
What's the best format for adding a date to a table? I was using "20040520 10:39:31", but now it's giving me the error: '20040520 10:39:31' is not a valid date and time.

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Select Rows From Date Not Time In Where Clause
I am trying to select all the rows that where entered today and I have a datetime type column to store the date data in. How can I specify in my where clause to select where datecol=today and not have to specify the time? If I do where datecol=<?php date('Y-m-d'); ?> its not working

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Date Field, Time Field
I have a MySQL date field (e.g 13/12/2006) and a MySQL time field (e.g.13:00) in the same row.

I'd like to join these two fields to make a date/time field (e.g. 13:00 13/12/2006) and to be able to sort the query results on the resulting field.

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Loading Date Format 1-1-2007 To Date Field Doesn't Work
I'm trying to load the date into a date field in mysql so that I can sort by date, but the date field in mysql is yyyy dd mm or yyyy mm dd so it doesn't load. What can I do?

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Select Where Date = Today Timestamp Field
I have data stored in mysql table with a field (date), the data stored inside the field (date) is timestamp, how can i select data from this table where date = today (Current Day) ?

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DATETIME :: Store Date In Date Field
I cant seem to get the correct date to store in my date field...? am i doing something wrong using this insert command:

$sql = "INSERT INTO registration_table (date(NOW()),name,address,...........

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Date :: Select X Number Of Months Ahead Of Current Date
I am trying to query dates stored in my mysql database...
eg:

2005-12-13 (13th Dec 2005)
2006-03-14 (14th Mar 2005)

My SQL query needs to fetch all the records which are X number of months ahead of the current date. eg: I query it saying "get me all records where the date is 1 month from now.... I have used this

(MONTH(date_review)-MONTH(CURDATE()))

which returns 1 - so this is ok - as it's November, and december is one month away.... but when I ask for 3 months - it wont get the records...

I know I somehow need to add the months on - but how do I do this with the year attached too?

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Date Range On Date Field
I have a table that has birthday dates stored as a DATE field. How would I get all the rows returned based on a min years old and a max years old...Let's say...
My form has....

Display Rows by birthdate in years....

Show between (23 years old) AND (36 years old) from the current month/day/year

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First And Last Time In Each Date By Empl (was "Help Me With This Select Statement")
I have the following table which has the following fields:

logid, empid, transdate,transtime

I want to select the first and last transtime in a specific date for every employee, how can i do that?

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Select Date Date Functions
i do very elementary sql and am having trouble with SELECT

i have a database of the chinese years, they start at different days and months so what i did was create a table called year:

year_id (int)
year_name (var) ex:RAT
year_starts (date) ex: 1917-01-23
year_ends (date) ex: 1918-02-10

so when i want to find out what year somebody was born ($birthdate), i wanted the database to do something like:

"SELECT * FROM year WHERE year.year_starts >= $birthdate AND year.year_end <= $birthdate"

I can get it to select from either year.year_starts >= $birthdate (alone) or year.year_end <= $birthdate

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PHP/MySQL Sorting By Date & Time (using Non Military Time)
This is probably a simple issue but I have searched online and can't find an answer.

I am using PHP/MySQL and I guess the most intuitive would be to have three select boxes containing HOUR / MINUTE / AM,PM option. Then store the time into mysql using there functions so I can output the data sorting them all by date and time. All the examples I have seen are for military time only but I'm sure there has got to be a simple mysql function or php function that converts non military to military and a formatting function to display with the AM / PM. But I have not found it.


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Date-time Overlaps Another Time
had a time question in mysql...
i have a start and end time for a meeting table and i am comparing whether a new meeting conflicts with another meeting in same room on the same date.
i was wondering if i could check whether the 'date-time duration' in anyway overlaps another meetings date-time duration. visualized below...
............|____compareToThisMeeting__|
.....|_________meetingNewOverlaps__________|
i was doing something dumb before i realized i needed soemthing more complex (checking whether the start time of new meeting was 'BETWEEN' the start and end times of a meeting and whether the end time time is as well but i forgot the duration/middle value hehe).
(using asp)
and just returning booleans with a mySQL SELECT statement is what i am looking for like...
//within a loop in asp for meetings on same date/room
"SELECT '"+ year+"-"+month +"-"+day +" " + startHourString +":" + startMinuteString +":00''"+ " BETWEEN '"+ thisMeetingStart +"' AND '"+ thisMeetingEnd +"'"; (this doesnt cover the 'middle' overlap areas though)

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After Date And After Time
I would like to make a memo script that once you have entered the date and time and note in a memo intto the database the memo is displayed once both date and time have passed. I dont want the memo to disappear until it is told to. I have an idea how to make it disappear, but I dont know what the syntax is for the sql for AFTER the date has passsed and AFTER the time has passed.

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Time AND Date
i want to store the time in my field typ time.
i DON`T want to store date and time in one field.
in the field i see the time with an admin tool, but when i want to put out the value in an ASP page i get time AND date .how can i configure the field typ to store ONLY the time ?

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About Date And Time
i have created a table using the following code:
------------------------------------------------------------------------------
create table tt(name varchar(10), enddatetime timestamp, startdatetime timestamp, difference timestamps);
------------------------------------------------------------------------------


after i have created, i insert the following into it:
------------------------------------------------------------------------------
insert into tt values('bob',null,'2006-10-1 12:12:12',null);
------------------------------------------------------------------------------


and i want to find the difference between the enddatetime and the startdatetime. so i tried the following:
-----------------------------------------------------------------------------
select enddatetime,startdatetime, sec_to_time(unix_timestamp(enddatetime)-unix_timestamp(startdatetime)) as difference from tt;
------------------------------------------------------------------------------

but the value came out from the difference column was xxxxx:xx:xx *(where x is an integer). as you can see, the year,month,date and the hour are all mix up together(xxxxx). so i was wondering whether my code or my variable was wrong?? and by the way, how can i show the difference in terms of seconds?? like converting the enddatetime and the startdatetime into seconds and substract them together?

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Date Time
what I want to do is very simple however it seems I'm having trouble figuring out how :D
I got a date_time field in a table. I want to retreive all the records that match yesteday. Something like: select * from table where datetimefield = now() - interval 1 day
HOWEVER because it's a date_time field (and I can't split it in 2 fields for other reasons), the above query won't return anything. Seems I could do a select * from table where datetimefield between yesterday at 00:00:01 and yesterday at 23:59:59 but I can't find the functions for that.

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Date &amp; Time
i want to ast if i insert into table the value of now() in a datetime formated column does tha value it inserts if from my pc or from the server?

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UTC Date/time
A data file I am trying to import has the date/time field in UTC format:

YYYYMMDD HHMMSS+0.

When I define my column field as datetime and import I only see zeros in all positions.

Can MySQL import data that are in the UTC format and if so what data type or command should I use?

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SQL Date Time
I've been having trouble trying to figure out the best way to select only the rows with timestamps within the last X amount of hours, days, weeks, months.

So I guess my SQL statement in plain english would be:

Give me all the rows that have a timestamp between NOW and X days/months ago and count how many times a row was submitted per hour/day/week/month within those rows.

I'm pretty sure this is possible but I can't seem to wrap my brain around it.

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INSERT Non-MySQL Date Into MySQL Date Field
I have a non-MySQL database that has a date value that is an integer value (4 byte unsigned integer representing the number of days since 1904, ie 01/01/2000 = 35063)

Do I need to re-format this to use in an SQL to INSERT it into a MySQL table?

If I do need to reformat it, what is the best format to use.

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Select From Date To Date
i need a query that selects from date to date in the end the query will be weekly top 5 tutorials and i would like it every sunday to automaticly change the date in the query so i never have to do it.

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Time And Date Fields
I have a form which insert data into a MYSQL table. In this MYSQL table I have a field called "DateEntered". Is it possible to have this field automatically updated with the current date when the form is submitted. What do I need to do in Mysql or on the html form?

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Mysql Date Time
This is probably an easy one but i cannot seem to solve it, what I have is a database with a lastlogin datetime field in the form:
2005-01-17 00:14:30

I need to do a select on each entry to find the number of rows later than the date of the current row datetime, as I have users that log log in at different times.
I tried something like in a loop but this does not work

select count(*) as total from user_table where (NOW()>DATE_ADD(LastLogin, INTERVAL 0 DAY)) and iUserId != '$iUserId'

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ORDER BY Date And Time
I am using php to extract variables from a MYSQL database that get loaded into a calendar application. Most everything works great. The only problem occurs when more than one event occurs on the same day. The event date and time are stored as separate variables in the database, thereby making it difficult to ORDER BY date and time. The result is that all of my events appear on the proper day, but they do not appear in chronological order. Is there a way to order by date and time?

I currently have the following:

Code:

$SQL_Query = "SELECT eventID, eventDate, startTime, endTime, title,
description, linkName, hyperlink FROM events ORDER BY eventDate";

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Server Date Time
I have mysql server running in one machine. I have a query in my program
'SELECT CURRENT_TIME', it will retreive the system time.

I installed my program in the client machine and it is connecting to the mysql server. If i execute the SELECT CURRENT_TIME, it is giving the client machine date and time.
How can i retreive the server machine means on which mysql running, its date and time from the client machines.

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Subtract Date And Time
is there a way that I can subtract date/time in MySQL?

For example I have this dates and I want to know the number of hours between this dates:

I want to perform 2006-12-05 22:00 - 2006-12-07 08:00. Can this be possible in a mysql query?

$date1= '2006-12-05 22:00';
$date2= '2006-12-07 08:00';

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Sort Date And Time
I have a simple question about sorting records based on seperate date and time fields.

Take the following example query:

SELECT some_id FROM datatable WHERE date >= '2007-01-01' and time >= '05:00:00'

This returns all of the records with a date greater than 2007-01-01 and then reduces the records to only those with a time greater than 5:00. I want all records after 2007-01-01 5:00.

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DATE Format :: How To Put Time?
I am using PHP myadmin to setup my mySQL database. The format I choose to store my date text field was DATETIME. How can I choose a different format for the DATE?

All I want is a: 12-7-2007 format and don't want to put in a time but it's expecting the time as well.

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Need To Include Time With The Date
I have a table called 'date_accessed' ...

When I query that table for the date, how do I include the time along with it?

Here is my query:

SELECT user_agent, ipaddress, date_accessed FROM access_tracker;

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Date/Time Format From CSV
I have a rather large csv file that includes many dates that I would like to import into MySQL. The problem that I am having is that the dates are DD/MM/YYYY HH:MM:SS, and MySQL does not accept them in its YYYY-MM-DD HH:MM:SS format. Any ideas how to convert this properly?

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Date/Time To The 6th Microsecond
I am trying to import a field in a table on a server to which I am connected via ODBC. The field is in the following format

2008-08-11-00.00.00.000000

I would like for the format of the field locally to be the same but when I import it only goes to the seconds part of the format. Even when I try to import it as a text with 50 characters it doesn't help.

Is there a way for the imported file to be in the exact same date/time format?

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Date/time Function
I need to write a query which looks for certain criteria, then returns all rows which occur 0-30 seconds after. Can you please help with a generic query to accomplish this?

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Date/Time Issue
I am very new to MySQL. I have used other databases before so I am trying to figure out how to do things I have done before.

I want to create a table with a column of type DATE. When a row is inserted in the column I want the date the transaction took place to be inserted as the default in the column. I have tried a couple of things, but everytime I execute anything like:

SELECT CURDAT ();

MySQL reports Error 1146 Table mysql.proc doesn't exist. What have I not setup correctly?

Same thing happens when I execute:

SELECT VERSION ();

I am using version max-5.0.18 on a Linux system.

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Conditionals With Date/time...
I am trying to figure out how to use conditionals with date/time using PHP with MySQL. For instance i want a time limit on my site to restrict people clicking a link within so many minutes.

So for example if they click the link once thats fine, but if they do it again say within the next 5 minutes i want one output, but if they wait the alotted 5 mins then another output.

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Date Time Question
first post:

Hello,
I'm trying to show what users are currently logged in on my site. what I've done is update a timestamp everytime they hit a page. what i want to do is select users where the current time Now() is within 15 minutes of the timestamp, to see if any users are on.

but I'm not sure how to do this.
any ideas? examples would be grate, I haven't done any asp in a long time.

thanks in advance for you time!
-Ken

second post:

ok, i've tried this,

SQL = "Select user from accounts WHERE DateDiff(n, Now(), date) < 15 ORDER BY user"


but i'm getting an error:

ADODB.Recordset.1 error '80004005'

SQLState: 42000
Native Error Code: 1064
[TCX][MyODBC]You have an error in your SQL syntax near '(n, Now(), date) < 15 ORDER BY user' at line 1


/admin/date.asp, line 6


also i'm using MySQL as the data base.

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How To Convert A Varchar Field Into Proper Mysql Date Field?
I have a database in which the date is stored in varchar field in a following format: d-m-Y (06-08-2007), now the problem is that I want to change that field into mySQL date field as well as convert my older dates into MySQL date format i-e Y-m-d (2007-08-06)..

There are about 300 old entries..is there a way I can do that automatically without manually re-entering the dates again?

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Indexing Date / Time Fields.
If we have a date/time field and are doing frequent queries
WHERE {date/time field} BETWEEN TimeA AND TimeB

Does it make sense, query speed wise, to create an index on the date/time
field?

The reason I ask is that TimeA and TimeB are significant down to seconds.
My *assumption* is that with a large amount of data scatter very few records
will contain duplicate date/time points. And that under these circumstances,
indexing will be of little value since every date/time point will need to be
examined in detail. Date/time fields are actually floating point numbers
after all.

In other words, the assumption I am making is that if most of the data in a
field is unique, then indexing will yield little or no query performance
benefit.

Is my "assumption" valid?
Would an index on the date/time field speed up this type of query?

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Find Date And Time Of Last Update
I inherited a server running MySQL 4.* from a previous developer. Now,
the records on this database might be what I want, or they might just
be test data. I think my only chance of finding out if this is the real
thing is to find the date and time of the last insert into the
database.

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Date And Time Stamp A Changed Row
I am about to declare a table with 20 columns.

How do I create 4 more columns:
1. current Time
2. current Day of the month
3. current Month
4. current Year

Such that:

a. These 4 columns are not editable by the user.

b. Whenever a row is updated/inserted/replace/etc. then
these 4 columns in that row are automatically updated
by the system accordingly.

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Creating Date And Time Fields
What's the correct way of creating date and time fields. Do I set a default for these fields of NULL so I may query NULL values instead of '0000-00-00' values? What's the preferred way?

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