Questions tagged [datetime]

for questions specific to data types that contain both date and time parts.

37 questions with no upvoted or accepted answers
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19k views

MySQL - Truncated incorrect datetime value on update statement

I have an application which produces log files. These log files include a Timestamp field in the format 2015-08-25T09:35:01 UTC. (there will be approximately 60 logs produced at 0.25 GB per day). I ...
2
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0answers
44 views

What is the name of month 0?

MySQL permits you to store a zero value of '0000-00-00' as a “dummy date.”: https://dev.mysql.com/doc/refman/8.0/en/date-and-time-types.html I'm currently inserting into this field using STR_TO_DATE(?...
2
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1answer
560 views

Calculate Total Working Minutes in MySql

I have a design a table for attendance and here are the genral fileds AttendanceMachineLoginId EmpId AttendanceDateTime Whenever user will come to office, he has to make his attendance. The first ...
2
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0answers
317 views

Delete rows within a given time interval

I have created a table with the following values: create table MyTable (id int, dtdate datetime, serialNum int, serialCode int, status int); insert into MyTable values (1, 2012-12-20 01:01:00, 1, 10, ...
2
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0answers
199 views

SQL Server : implicit calculation of precision/scale for datetime scalar

I'm working with an application that ( for whatever reason... ) is unable to pass datetime stamps into its SQL Server database. Where the application needs a datetime stamp, it will push the server ...
2
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2answers
115 views

Get rows in a range of time

I have a table with two columns that stores TIME type values. This is the CREATE statement: CREATE TABLE `sdriving_turno` ( `idturno` bigint(20) NOT NULL AUTO_INCREMENT, `idempresa` int(10) ...
1
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1answer
37 views

calculate days spent of all visitors from encounters

I have an encounters table CREATE TABLE visitors( id serial PRIMARY KEY, start_date TIMESTAMP NOT NULL, -- visitor_id bigint NOT NULL -- skip for now, end_date TIMESTAMP ); (end_date can be ...
1
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1answer
40 views

redesign database around selecting rows by time range

I currently have a MySQL database that grows about 50,000 rows a day. When querying data out of the database, I query information from the info table and use a subquery on the session table to refine ...
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0answers
2k views

PostgreSQL datestyle / OS locale issue

The problem of this issue has been identified and can be treated as resolved. (see the comments bellow) I try to install a web-application on a server (debian) and on a local machine (ubuntu). When ...
1
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0answers
2k views

MySQL 5.6 - ERROR 1292 (22007): Incorrect datetime value: '2015-03-29 01:01:12'

I am trying to copy logs from one of my MySQL 5.6 databases to another. Unfortunately, it keeps failing when it tries to insert one of the times with the following error message: ERROR 1292 (22007): ...
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0answers
95 views

Extract stats from datetime intervals in MySQL

I have a MySQL database with some table stored as InnoDB type. One of them is work_session and its structure is: `id` int(10) unsigned auto_increment primary `project_id` int(10) unsigned index `...
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0answers
1k views

MySQL FROM_UNIXTIME() gives wrong date in certain time zones?

The timestamps 1382836533 and 1382832933 correspond to the same wall clock time 2013-10-27 02:15:33 in cet timezone (because of daylight savings time). Therefore the conversion with FROM_UNIXTIME is ...
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0answers
454 views

How to convert datetime string of different formats in a valid datetime in SQL 2008

I have a table in SQL database in which there is an NVARCHAR(MAX) column. In it, the data is stored as 'Datetime1&Datetime2&Datetime3&Datetime4...'(& separated dates. I know this is ...
1
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0answers
381 views

mysql datetime timezone +0000

I've got a Twitter database and some columns in multiple tables are time-stamps like: Tue Sep 09 23:48:37 +0000 2014 These columns are TEXT so I want to convert them. I read Date and Time Types, ...
1
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0answers
3k views

Select records where difference between datetime column1 and column 2 is greater than X amount of time

As the title indicates, I'm trying to return records where the datetime difference between two datetime columns is greater than X amount of time. I'm having trouble wrapping my head around this ...
1
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1answer
868 views

Weed out certain rows where timestamp is within interval

Given a table structure: create table contacts ( contact_id int(8) not null auto increment, #primary key pid int(8) not null, #personal id contakt_time datetime, ...
1
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0answers
437 views

Combining date and date/time ranges in PostgreSQL

In a PostgreSQL table, I'd like to store events which have a range telling when the event is happening. However, some events span whole days (i.e., the user does not care about time), while others ...
1
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0answers
2k views

Why does this MySQL date_sub statement return wrong values?

I had a complex statement that was returning strange values and I traced it to the following line: SELECT id, updated FROM status WHERE updated > date_sub(NOW(), INTERVAL 6 MINUTE) ORDER BY ...
0
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0answers
18 views

Postgres cast MI:SS formatted string to “interval minute to second” type

I have a data source with the time information being formatted like this: 'MI:SS'. I am trying to coerce that to a native postgres INTERVAL or TIME type so I can leverage the equivalent operators. I ...
0
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0answers
73 views

Compare datetimes with dfferent timezones in MySQL

I have a field `opened_at` in MySQL table that stores datetimes in string format with different timezones: 2021-01-30T18:07:40+02:00 2021-01-31T01:32:40+05:00 2021-01-31T21:17:40+03:00 etc. I need to ...
0
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1answer
24 views

Pivot on datetime with matching multiple column

I have the following table with column school, state, subject and timedate. I would like to have output with column school, state, act and english filter subjects to only Act and English pivot table ...
0
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1answer
74 views

Aggregating data by group and time gaps

I've got a postgresql+postgis database filled with GPS data: CREATE TABLE "my_table" ( "id" serial NOT NULL PRIMARY KEY, "gps_id" text NOT NULL, "lat" numeric NOT NULL, "lon" ...
0
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1answer
25 views

Time interval is returning all records or no records

I am trying to run a query to return records in the last 24 hours and following the instructions here: time interval tutorial After running the query at 18:30 UTC, my query looks as follows: RETURN ...
0
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1answer
38 views

Locating all records relevant for a specific date

I have a MySQL InnoDB table with about 1GB of records and growing. each record in this table has, among other fields two date fields : AddedDateRecord - The date the record was added (datetime). ...
0
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1answer
72 views

How to summate weekly totals from a postgres date range type per user

I have the following table: Schedules +----+---------+------------+-------+--------------------------+ | id | user_id | project_id | hours | date_range | +----+---------+------------+---...
0
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1answer
999 views

Pass 'interval' value to date_trunc function in PostgreSQL procedure

I am fetching the "age" of two timestamp columns (End and Start) and further choosing it as to_char 'MM' format. So I have the difference of the months from two timestamp columns. The syntax in the ...
0
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1answer
372 views

How can I get the last second of the last month as a default parameter value?

I am trying to get the last second of the last month as a default value for a parameter. I can get the last day of the last month from this query on social.msdn.microsoft.com last month last day ...
0
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0answers
211 views

Generate Slot Summaries(chunks of continuous slots) from the Slot table

We have a Slot table to store appointments. The app receives the date and multiple slots which are then divided into smaller slots of 15 mins interval. CREATE TABLE `Slot` ( `id` int(10) ...
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0answers
120 views

SQL Server 2014 datetime conversion

I have a date formatted as follows: 00:50:34 Jun 25, 2017 PDT .. actually I have it in this format 00%3A50%3A34+Jun+25%2C+2017+PDT but can easily transform in the above. I was wondering if there'...
0
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2answers
166 views

Finding Count of Occurrences & Time Gap between a Timeline in MySQL

I have a Table, like the below, which has a timeline and values (like YES/NO) that are coming from different sensors. How do I do the following: How many times there has a been a flip-flops (for YES ...
0
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1answer
2k views

Phpmyadmin feed a timestamp column with “0000-00-00 00:00:00”?

in PhpMyAdmin (OVH Mutu), a table with column type timestamp. Impossible to put into this colum a timestamp : Always display datetime like 2017-01-09 23:02:01 !!! It generate several problmes : ...
0
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1answer
312 views

How to pass, specific day month and year in the below query?

I have registration according to the data in a table and I want to show the whole month, I found the easy solution with below query but I do not know how can I pass specific day, month and year in ...
0
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1answer
32 views

column values do not return properly when column name called out specifically in select statement

I have a database with this table (version 5.0.95): > describe shift; +-----------------+--------------+------+-----+---------+----------------+ | Field | Type | Null | Key | ...
0
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1answer
502 views

Select different dates from mysql

I have a database structure like this ID | title | startTime | endTime And what I need is to get 3 records from the database where the first recorder is following this structure DAY(NOW())-1 the ...
0
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1answer
30 views

Building test site, update dates (back date records)

I have 3 tables that all connect and I need to back date them in an MS SQL 2008 setting. I was thinking about how to do this and not sure if I am on the correct path. The big problem I have is I have ...
0
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1answer
85 views

Calculations involving thresholds between two tables

I have a table comment and a table price like below. The key columns in both tables are ticker_id, price_datetime and price_open. The last column threshold in table comment (which currently NULL) is ...
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0answers
486 views

Cohort analisis for gamers activity

I want to do some cohort analysis of gamer activity in my games. By cohort I mean some set of users who registered (or had first activity) on some particular date. For example: users registered on 16 ...