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-1
votes
1answer
39 views

how to update date field in a record to null?

I have records in a table which a field named as 'validity' contains date as '8/15/1947 12:00:00 AM'. I need to set this date as null. I am having 1000 records,in that validity field is '8/15/1947 ...
4
votes
1answer
88 views

date formatting in Oracle

this query: select to_char(sysdate, 'Ddspth MONTH, Yyyysp') from dual will return: Eighteenth MARCH , Two Thousand Fourteen i am wondering if there are any additional formatting keywords that ...
0
votes
2answers
63 views

compare dates in results

I'm looking to compare the dates in the result set Example: SELECT * FROM tbl WHERE foo=bar Output id, datetime, name 1, 2014-01-01 18:13:45, test 1 2, 2014-01-01 19:01:32, test 2 3, 2014-01-01 ...
1
vote
2answers
61 views

Datediff() in MySQL

While calculating difference between 2 dates as number days, by using MySQL Datediff() function, I am facing some issue, the SQL code is given below. select datediff((select curdate()), (select ...
0
votes
0answers
46 views

Firebird-Time Interval- between 2 Dates

I try to select the period of employment for the members in a Company. Example: Date of join: 01.01.2001 Today: 27.02.2014 Now, I want this: 13 years, 1 month and 27 days I have a Statement which ...
0
votes
2answers
64 views

Primary key for link/junction table with time-dependent data

I want to link two tables in such a way that for any given time period the relationship is one-to-one, but over time the relationship can change. As an minimal example, suppose I want to list the ...
1
vote
1answer
64 views

SSIS: Get Date for Day of the Week

In SSIS, how do I get the date for a specific day of the week? For example, how do I get last Sunday's date? I assume I have to do some subtraction on the day-of-week, but not sure: DATEADD("d", ...
1
vote
2answers
36 views

How to use a column's latest date in query?

SELECT smart_allusers_karen.lastlogin, smart_allusers_karen.supemail, smart_allusers_karen.regionname FROM smart_allusers_karen WHERE lastlogin < MAX(smart_allusers_karen.lastlogin) - INTERVAL 30 ...
1
vote
2answers
112 views

how to change the default date format in oracle

New to Oracle here, i am working on some assigments but i noticed when i was creating the tables using a script, oracle throws the following error: ORA-01858: a non-numeric character was found where ...
0
votes
1answer
47 views

Get max date for each year from list of dates

Need to get max date for each year from list of arbitrary dates: date year ================= 1/10/2013 2013 3/26/2013 2013 4/20/2012 2012 9/10/2012 2012 5/6/2011 2011 So ...
6
votes
1answer
2k 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 ...