DateTime query on only year in SQL Server

Question

I want to select multiple records on the basis of a matching year, for example in table tab where columns are [id] int, [name] varchar, [boo

Answer 1

1. You need to delimit datetime constants like you would a string
2. Use yyyymmdd pattern for SQL Server (not yyyy-mm-dd, it is unsafe generally)
3. Use proper range queries to allow for time value

So, to find values between "12 Dec 2004" and "31 Dec 2009" inclusive, allowing for time:

...
where [IssueDate] >= '20041212' AND [IssueDate] < '20100101'

Edit, or this, because of the ambiguity in the question for "year = 2009"

...
where [IssueDate] >= '20090101' AND [IssueDate] < '20100101'

Answer 2

Yes, if you try this query:

SELECT to_date ('2008','yyyy') AS my_date, SYSDATE FROM dual;

The date will be the year (2008) and the current month (today is November), and the day is 1 so your query do not includes all months in 2008.

Answer 3

select id,name,bookyear from tab1 where year(bookyear) = 2009

Answer 4

You can do

....
WHERE [IssueDate] > '2004' AND [IssueDate] < 2010

Answer 5

One of the most important things to remember with regards to SQL Server and dates is that the best format to use is this: 'YYYYMMDD' (or 'YYYYMMDD HH:MI:SS'). This format will always be interpreted properly by SQL Server, regardless of regional date settings.

SELECT [ACCNO] 
      ,[Roll No] 
      ,[IssueDate] 
      ,[DueDate] 
  FROM [test1].[dbo].[IssueHis$]  
 WHERE [IssueDate] >= '20090101' 
   AND [IssueDate] < '20100101'

Answer 6

where YEAR(IssueDate) = '2009'

Reference