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1
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1answer
33 views

Select statement for selecting every week's log record

Here is a simplified version of the table in question: +------------------------------------------------------+ | DatabaseName | LogRecordNumber | LogTimestamp | ...
1
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1answer
41 views

Getting Time Duration

I have a table like below: I want to get time duration for each record which SPEED is greater than 100. I written a function for that, it’s working fine , but my problem was i have millions of ...
0
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0answers
21 views

Convert J1950 Date to Gregorian Date using a MySQL Query

I have a database table with a column named "time." The cells in the "time" column each contain a timestamp entry which was inserted in J1950 time format. I would like to convert the J1950 time to a ...
0
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1answer
43 views

12 hour format time in SQL datatype

I can convert time datatype to 12 hour format using convert etc. But is there any option to save the time in 12 hour format in SQL tables using any settings or property or any other methods?
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0answers
25 views

Are bitemporal tables convenient, compared to valid-time and transaction-time tables separately?

I am trying to collect information about temporal databases. I know it is not a modern technology, but I saw that many people who work with databases don't ever know how temporal approach works (I ...
3
votes
2answers
518 views

Which of the following pieces of SQL is most efficient

I need to add the date part of GetDate() to the time part of a stored DateTime. Naively I thought I could do the following: declare @testTime DateTime = '2013-04-23 13:55:06' select cast(getdate() ...
2
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3answers
437 views

Can I use PHP function strtotime() in SQL queries?

I have this table, and I need to use a PHP function in the query. id time lastTime 1 08:02 2 08:04 3 08:30 I am using this query with the strtotime(), and it's not working: ...
1
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2answers
55 views

Time elapsed Calculation

I need to calculated time elapsed for each user to perform his part in a transaction. The sequence is: 0 -1 - B2 or 0-B3 The table looks like the following: ...
2
votes
2answers
262 views

Select different time

I looked on the internet and I found your post on the stackexchange. I will try to explain in more detail what we really need I do not know well to write English It is a system for airporttaxi id ...
1
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6answers
1k views

Efficiently storing irregular/repeating intervals (think calendar/events)

I am developing a service that relies on users being able to recieve messages that they themselves choose. These messages need to be stored somewhere before they are send for processing. Right now ...
1
vote
1answer
99 views

Risk of changing clocktime on MySQL server host

I have a MySQL server host that have a clock that is about 75 minutes wrong. Is there any risk in changing the hosts clock while MySQL is running? Update: Obviously NOW() and other functions ...
0
votes
0answers
209 views

MySQL select closest time

I have a table that contains the start times for shift patterns, for example. I have early starters with a shift start defined at 07:00:00 and normal starters at 08:00:00 When someone punches in at ...
2
votes
2answers
601 views

How to SELECT rows with time duration stored in varchar column?

There is a column in table defined like this : duration varchar(10) It has value for duration of a MP3 file stored in it like : 52:19 (Minutes : Seconds) How can I create a SQL query, for ...
0
votes
1answer
235 views

Can we set LOCK_TIMEOUT instance- or database-wide?

It is possible to change the SQL Server's default (which is -1 or indefinite period of time) LOCK_TIMEOUT value session-wide. Is it possible to set LOCK_TIMEOUT default value server-, instance- ...
8
votes
2answers
9k views

How to combine date and time to datetime2 in SQL Server?

Given the following components DECLARE @D DATE = '2013-10-13' DECLARE @T TIME(7) = '23:59:59.9999999' What is the best way of combining them to produce a DATETIME2(7) result with value '2013-10-13 ...