Tracking Forums, Newsgroups, Maling Lists
Home Scripts Tutorials Tracker Forums
  Advanced Search
  HOME    TRACKER    MYSQL


SuperbHosting.net have generously sponsored dedicated servers to ensure a reliable and scalable dedicated hosting solution for BigResource.com.





Update Time Ony In Datetime Field


How do I update the time portion in a datetime type field? There are several rows containing various times and I want to make them all the same: 11:30:00.


I have tried doing the following w/o success:
update field set field = "date(field) 02:02:00"




View Complete Forum Thread with Replies

Related Forum Messages:
Update Just Time In Datetime Column
I have a datetime column called foo, it currently has dates in it with all times set to "00:00:00".

I would like sql to update all the rows and set the time to "15:15:00" but leave the dates as they are today.

View Replies !
Datetime Field Updateing Time Only
How would I update the time only on a datetime field? The filed is: "2008-09-14 12:06:00" and I want to change it to "2008-09-14 12:16:00".

If I use

 update field_name set field_name = TIMEDIFF('2008-09-14 12:06:00', '2008-09-14 12:16:00'); 

View Replies !
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?

View Replies !
Update Without Chnging Time Field
I have a table named Test as following

id int(2),
time_insert timestamp,
key_check int(2),
primary_key (id));

In certain period of time, i want to update key_check field.
update Test set key_check=2;

When i insert the update cmd, both time_insert and key_check change. I just wanna change the value of key_check not time_insert.
How to do this?

View Replies !
Generating DAILY Min&Max Over A Period Of Time, Based On A "DateTime" Field
how to print the minimum and maximum of a specific field, between two datetimes (both having the time 02:00:00) - so I did this:

WHERE ((tblvalues.dtLPDateTime)>="2006-01-01 02:00:00" And (tblvalues.dtLPDateTime)<"2006-01-03 02:00:00"))

Now I want to print those min and max values but for each day in this cycle, i mean, for this example, there would be two records like:
Day Min Max
2006-01-01 02:00:00 -> 2006-01-02 02:00:00 | 40 | 59
2006-01-02 02:00:00 -> 2006-01-03 02:00:00 | 49 | 68
where at this point i`m getting min=40 and max=68

View Replies !
Compare Datetime Field With Todays Datetime
How do I compare a datetime field in the database with todays datetime...

Is it:

if rs("fieldname")<>getdate() then
....
else
(gotto set a cookie here)
end if

Somebody suggested I use cdate...what is tht for..is it to make sure they are both in the same format or something.. if so how do I use it?

View Replies !
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.

View Replies !
DateTime Without Time
I have a difficult case and need your advice:

For managing events in my online application I need to be able to input the start and end.

They can be inserted either as a date only or as a date and time both.

And I save this data into the DATETIME format. The problem is, if only a date is inserted, MYSQL will put the missing time information automatically as '00:00:00' but I don't want this.

Because it will display the time as '00:00:00' which is wrong. Is there no way to save into DATETIME format without the time?

View Replies !
Comparing Datetime And Time
I need to compare two values : the first one is in DATETIME format and the second one in TIME format. If I compare the two values with an usual operator, will MySQL extract the "time" part of the DATETIME and compare it to the TIME value?

If not, what function can I use to extract the "time" value? I have noticed the existence of TIME(expr) function, that extracts the TIME value from 'expr'... but it works only if 'expr' is a string, not a DATETIME.

View Replies !
Elapsed Time Between 2 DateTime Values
MySQL Version 4.0.20 on a Linux server.

How does one get the elapsed time between (2) DateTime values?
I need the answer to the nearest minute.

Is upgrading to Ver 5 with its more robust date/time functions the only
solution?

You can directly subtract 2 DateTime values and a long integer results.
What is that number?

View Replies !
Datetime :: 12 And 24 Hours Time Format
I am using webservice to download data from mySQL to SQL Server.

I noticed in sql server datetime format makes the hour 12 to 00. for example

2008-06-12 00:40:47.000

This is really 2008-06-12 12:40:47.000

My question is how does mySQL treats 24 hours format. with 12 or 0 for the hour "12".

View Replies !
Function To Convert From DateTime To Relative Time
I have a DATETIME column and I looking to write a function which does the following:

Takes in the DATETIME and compares it against the current time, and returns a string in any of the forms below, depending on the value of the DATETIME:

'You updated your settings 4 seconds ago.'
'You updated your settings 2 minutes ago.'
'You updated your settings 6 hours ago.'
'You updated your settings 12 days ago.'

But its smart and automatically scales from seconds, to minutes, to hours, to days, rounding either up or down.

View Replies !
Convert Time Format DATETIME To MFC/MS Visual C++ 6.0
How to convert format DATETIME to MFC/MS Visual C++ 6.0.
I get get datetime from mysql database using mysql++ api.
I wanna put this datetime into Edit Box in MS Visual C++.

View Replies !
Current Date & Time For Datetime Variable?
I have created a table with a variable of the type "datetime". Any one knows how to update this variable with the current date and time? The function Curdate() only updates the date, not the time.

View Replies !
Different Timestamps For Time Of Creation And Time Of Update
What is the syntax to be used in MySQL when you want one timestamp to be set when the record is created, and the other only when it is updated?

I tried something like that but got a syntax error.

View Replies !
Creating Datetime Data Object From Date And Time Objects
I have date and time objects that correspond to eachother. I want to add a certain amount of minutes and hours to them and get the resulting date and time.

I was planning on creating a datetime datatype from the two and then using the date_add() function and then convert back; however, I do not know how to create a datetime object from two seperate date and time types and then back to seperate types, or whether it is even possible.

View Replies !
UPDATE Date Of DATETIME
I have a datetime column. And for some random row of data, I want to change the date (but not the time) of the datetime column. How do I do this?

before: datetime = 2006/04/03 12:30:25

if I do:
UPDATE table SET DATE(datetime)='20060404' where id=whatever;

I get this: datetime = 2006/04/04 00:00:00

I also tried: UPDATE table SET DATE(datetime)='20060404'+TIME(datetime) where id=whatever;

but that seems to take the time and add it to the date instead of concatenate it or something.

Anyways, my point is, I'm trying to update the date and only the date for a datetime value without adjusting the time. I know there is some simple way to do this but I'm far from a MYSQL syntax expert.

View Replies !
Adding Up DATETIME Field
i'm struggling with updating session expire times in my login table.

Can you tell me, how to correctly add an amount of seconds (after that
the session expires) to a datetime field?

when i do the insert for a new login, or an update, the expire field
will alway end up containing zeros Code:

View Replies !
Datetime Field Math
I need the most optimal way to determine if the value of a datetime field is between the current time and 24 hour before current time. I have tried the subtime function in several ways, and can't seem to get it to work.

View Replies !
Set Default Value For Datetime Field
How can I set a datetime field to have a default value of the time the record is inserted?

View Replies !
Default Value For DATETIME Field
I am trying to install a WordPress blog and the install script is failing as several of the tables contain a declaration like:

Code:

my_field datetime NOT NULL default '0000-00-00 00:00:00'

I am getting the message "Invalid default value for 'my_field'". Is there is a setting I can change to allow for this declaration, bad as it may be?

View Replies !
Datetime Field Problem.
I need to have a datetime field that auto-updates itself in the format yyyy-mm-dd hh:mm:ss.

Because of the formatting required I cannot use the timestamp field type. If I create a datetime field with the default value of now(). All I get is 0000-00-00 00:00:00.

Is there a way to accomplish this WITHOUT passing the update through code. Meaning have the database update the record automatically and not have to do this through an update statement?

View Replies !
Comparing DateTime Field To Now()
I am trying to have a select query which compares a Datetime field to the current date/time, Now(). Basically I want something to this effect:

SELECT Name FROM Lists WHERE expiration > 'Now()'

Expiration is a datetime field. The problem is It returns every name on the list except for ones with a value of 0000-00-00 00:00:00 whether or not the date has passed already. I have tried many other things including but not limited to

SELECT Name FROM Lists WHERE datediff(expiration,'Now()') > 0
SELECT Name FROM Lists WHERE timediff(expiration,'Now()') > 0
SELECT Name FROM Lists WHERE datediff('expiration','Now()') > '0'

and many other variations on those. The above 3 just returned a null recordset. How can I make this work?

View Replies !
Upgraded To 4.0.22 Now Datetime Field Is Different
We will be replacing an older server which is running mysql 3.23 and figured we would upgrade mysql apache and php. Most everything seems ok except for our helpdesk software (written in house) in php. It calculates the difference between two datetime columns so we can see the time span of when a ticket gets updated. With the new version it fails and shows me an error like this: date1 has to be >= date2 in calcDateDiff(1099810800, 1099810995). Date2 is the date when the ticket was submitted, and date1 is when the ticket was last updated.

With the newer mysql it seems to add a hidden value when the ticket is first created which causes the error. Depending on the function I use to calculate the difference it will return a number like -23:21:35 which is the approx. time since midnight and it was about 11:23 PM when I filled out a test ticket.

After I update the ticket it adds the datetime stamp and everything computes just fine.

I am not sure if this a mysql quirk or a php quirk since both were updated to newer versions.

Could someone explain what might be the difference between the datetime fields in the 2 versions and how I might fix the problem if possible?

View Replies !
Searching DateTime Field
I'm having a bit of trouble getting this to work. What i have is a DateTime field in a table and need to pull the records for only a particular day (based on a variable passed through). I looked on the MySQL website and found the date and time functions but it states the following,

DAYOFMONTH(date)
Returns the day of the month for date, in the range 1 to 31:
mysql> SELECT DAYOFMONTH('1998-02-03');
-> 3

Now how would i translate that into a workable PHP query? I tried the following with no luck,

$Query = mysql_query("SELECT *,date_format(date, '%M, %d, %Y ( %r )')as date
FROM $Table_diary WHERE DAYOFMONTH('date,$Day') && MONTH('date,$month')")
or die(mysql_error());

View Replies !
How To Get Date From DateTime Field
my Login field is in Date n Time format---->6/12/2006 02:30:25pm

And in my query, i juz wan to get the date wic is 6/12/2006.. how to write the sql?

View Replies !
Datetime Field Default Now() Fails
I have a mySQL database table with a column field datatype of datetime that I set up in the original create table statement like this:

create table nnet_usermetadata (
....
nnet_record_entered datetime default 'now()'
)

However, upon execution, each time a record is entered into nnet_usermetadata the results are:

00-00-0000 00:00:00

Is there a way I can always ensure that the current date and time are always entered into the datetime field?

View Replies !
Datetime Field Changed After ALTER
To archive when a row is added, I have a column called date_added which uses the data type DATETIME.

I recently added a new column to my table "ALTER TABLE mytable ADD COLUMN mycolumn INT", and my stored dates have all been changed. In hindsight, was this to be expected?

I am using PHP to both push data into MySQL and pull data from MySQL. To prevent such future blunders, is it good practice to store dates as CHAR data type, and actively store the date using PHP?

View Replies !
Get Records For A DATE From DATETIME Field
I have a column with type DATETIME (2004-11-23 21:19:2) and i want to do a query to get all rows='2004-11-23'. Can anyone help me with this problem?

View Replies !
Datetime Field Format Add Slashes
I have a datetime field that currently appears like this:
mm/dd/yyyy hh:mm:ss

I need to convert the dates in this field to MySQL format:
yyyy/mm/dd hh:mm:ss

It's a matter of being able to move the 'yyyy' portion to the beginning of the data field (of course adding and removing a slash

View Replies !
How To Compare A DATETIME Field With A TIMESTAMP
How do I compare a DATETIME field with a TIMESTAMP one.

View Replies !
DATETIME Field Conversion In Mysql
I know that there is a function in MYSQL to define a 'datetime' type column but when I am migrating a foxpro database to MYSQL type and when foxpro has the datetime column in the format: "08/12/1999 09:39:00", how would I convert this to mysql format while I am trying to load the data in the database(using LOAD command).

I have used str_to_date functions in the past to convert the date formats between the two databases but how do we go about the datetime format.

View Replies !
Select Julian Day From Datetime Field
I am trying to build a SELECT query that allows the user to pull a specific day from a table of data. Currently, I have a year, day, and time field, so the user can SELECT * from TABLE where year = 2006 AND day = 245.

I'm dropping these three fields in exchange for one datetime field (with the format yyyy-mm-dd hh:mm). Now when I select day(datetime) = 245 no records are found because I suspect that the days are being counted as 1 - 28, 30, and 31. Is there a simple way around this like a julian day function that is included in the SELECT statement?

View Replies !
Comparing DATETIME Field With Date...
I'd like to make query which compares two dates - one from database, ang second in php (date("Y-m-d H:i:s")). I'd like to make query which gives me back those rows where the date from db is more than three days older than current date.

View Replies !
Field Type :: Time Field With Decimal
I want to add times into a field in the form mm:ss.d such as 03:33.5 but when I use the time type it removes the decimal but I really need it to keep it in.

At the moment I am using a char(10) type and converting it in my scripts. Is there a way I can add it in using the correct type? I couldn't see anything in the documentation on the time type except that you could enter it in the form I want but it will convert it.

View Replies !
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.



View Replies !
What Is The NOW() Function In A MySQL DateTime Field Query?
I have a monitoring script which I am trying to better understand. One of the queries is built as follows: .....

View Replies !
During Import, The AM/PM Of Datetime Field Are Saved Incorrectly - How To Fix?
I am importing from a CSV file with date format like:
12/4/2006 12:02:13 AM
12/4/2006 1:21:04 PM
into a datetime field.
It is importing the above records as:
12/4/2006 12:02:13 AM
12/4/2006 1:21:04 AM
which obviously needs correcting.
Is there a painless way to correct this during the import process?

View Replies !
A Weekly Chart, Datetime Field Confusion
I'm trying to produce a weekly chart on my site.

The site holds 4 different genres of music, and I am aiming to produce a function to compile a top 5 chart, which will list the top 5 most played songs in the past 168 hours (7 Days) for whichever genre.

I know how the function will look, but it's the SQL query which I'm having trouble with.

Here are the SQL tables as they stand. (Only relative fields mentioned)

R2M

genre
song_id
artist
track

plays

song_id
play_id
play_date (datetime field)

So to give you an idea of what I'm after, I'm looking to call the function compile_chart($genre), send the genre variable ($genre) and then create the chart. Again, it's only the SQL query which I need help with, I can produce the remainder of the code myself.

So I'm trying to SELECT the artist and track from r2m ordering the results by how many plays they have had in the past 168 hours.

View Replies !
DateTime Field And Orderby - WRONG ORDER
I have a problem using ORDERBY on a datetime field, its returning results in the wrong order, for example its returning a current list :

- 4 hours ago
- 7 days ago
- 4 hours ago
- 4 hours ago
- 1 week ago
- 15 hours ago

As you can see, that clearly wrong. I've googled and found nothing to relavent on this issue...I even tried ORDER BY UNIX_TIMESTAMP(`updated`) and no difference.

My query, incase it matters

MySQL
SELECT DISTINCT(`thread_id`) as `id` FROM `Post` ORDER BY `updated` DESC LIMIT $from, $to

View Replies !
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.

View Replies !
Copy Field Over, Then Update The Original Field
I want to change a price of a product, but back up the old price. I was trying to do this through two queries, an INSERT and an UPDATE, but it's not working.

INSERT the row that will store the backup:

INSERT
INTO
s01_MUS_SalesXProducts
(
s01_MUS_SalesXProducts.sale_id
, s01_MUS_SalesXProducts.prod_id
) VALUES (
".(int)$sale_id."
, ".(int)$prod_id."
)
Then I would copy the prices over and update the original with one UPDATE query:

UPDATE
s01_Products
LEFT
JOIN
s01_MUS_SalesXProducts
ON
s01_Products.id = s01_MUS_SalesXProducts.prod_id
SET
s01_MUS_SalesXProducts.old_price = s01_Products.price
, s01_Products.price = ".(float)$sale_price."
WHERE
s01_Products.id = ".(int)$prod_id."
However it is copying the new price to the backup field. Is there a way to do this in two queries? I know if I select the product price before inserting I can do it in 3. Truely I would like to do this in 1, but I don't believe this is possible due to the nature of the queries.

View Replies !
Update Time
I have a table with 4 different columns to record IP address of people visiting my site. If a new IP comes it is recorded and a time also written on the last column.

when an exisiting IP comes again. The time becomes "0000-00-00".

Here is the code after you already connect with the database and an IP is found on the database or not.

Note: $Username_Found is a variable == 1 when an IP address is already found on the database. Default is not found == 0......

View Replies !
Update And Select Same Time
Code:

UPDATE art SET art.art_writer = (SELECT writer.writer_name, art.art_author FROM writer, author WHERE art.art_author LIKE 'writer.writer_name')

Is this query syantex is ok ?

Where, art_writer is empty fild where I want to put correct value which is in writer table and it should similar to value in art_author filed.

View Replies !
Real Time Update
We're looking to evaluate MySql for a new web project. I have a hopefully simple requirement which we're looking to acheive.

We will have a locally hosted application using MS Sql Server at the back end. The customer will then have an externally hosted website which uses MySql as it's backend.

We're looking to automatically update the MySql database in realtime whenever certain changes are made to the local Sql Server db. I was thinking of either a remote call to the MySql database to update the relevant tables (will only be a case of adding single records to a specific table) or whether I could create/upload xml information which could then in some way be imported into the web db by some automated process.

View Replies !
Update 3 Tables At A Time
i have 3 tables namely--- artist, journalist and songs.
i try to update the flags in artist and journalist and try to update few fields from songs by firing foloowing qurries.

update songs set sname='lala', sname2='my baby' where artistid=6;
update artist set statusartist='new',flag1='updated' where artistid=6;
update journalist set statusjourn='new',flag1='updated' where journid=4;

when i fire the above querries individually they are excuted without any error.
when i try to run these querries through my JSP application only the songs data is updated and the rest 2 tables are not.

i tried to write 1 combined query including all 3 tables for this,but still it didnt work.
can u please tell me a solution for this.

View Replies !
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.

View Replies !
Update Taking Long Time
everytime it tried to update row in any table, it takes very longtime, it locks the table, then i run out of connections and mysql crashes.

View Replies !
How To Update Parent And Child Tables At The Same Time
I'm using phpMyAdmin to learn how to do MySQL queries. Once I figure them out I put them into my PHP code, which I'm also learning.

I can do a SELECT query with a LEFT JOIN and get results.

My next step is to figure out how to update 2 related tables at the same time. I have tblBudget and tblBudgetDetail. tblBudget has tblBudgetID and tblBudgetDetail has tblBudgetDetailID and BudgetID (which should hold the same value as tblBudgetID in the related record tblBudget)

Code:

tblBudget tblBudgetDetail
tblBudgetID--| tblBudgetDetailID
|---BudgetID

crude, but perhaps you get the idea. The join is one to many. One tblBudget to many tblBudgetDetail.

So is it possible to update both tables with one query? I guess the query would have to populate the field BudgetID in tblBudgetDetail with the same value that is in tblBudgetID in tblBudget. Does MySQL do that automatically?

View Replies !
Time As A Field
Can we use a trigger to write to a field in a table? My problem is that I need the time in seconds (or minutes) since the system started.

What I need specifically is that every time a record is written I can find out the time since the start of the system and put that value (in seconds) alongside the record itself.

View Replies !

Copyright © 2005-08 www.BigResource.com, All rights reserved