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You can't avoid some amount of conversion. &nbsp;But, for best performance, <i>convert only one column</i>, usually the one from the smaller table. &nbsp;For example, say table A is very small compared to table B:<br />
<br />
select * <br />
from A a <br />
inner join B b on b. submittedtimestamp &gt;= dateadd(minute, datediff(minute, 0, a.createdon), 0) and b. submittedtimestamp &lt;&nbsp;dateadd(minute, datediff(minute, 0, a.createdon) + 1, 0)
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You can't avoid some amount of conversion.  But, for best performance, convert only one column, usually the one from the smaller table.  For example, say table A is very small compared to table B:

select *
from A a
inner join B b on b. submittedtimestamp >= dateadd(minute, datediff(minute, 0, a.createdon), 0) and b. submittedtimestamp < dateadd(minute, datediff(minute, 0, a.createdon) + 1, 0)

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Thanks for the hint, Scott.
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<div class="content wysiwyg-content">
Hi Experts, <br />
<br />
In table A, the column &quot;&nbsp;created on&quot; has value &quot;2015-06-02 10:27:11.787&quot;<br />
In table B, the column &quot;&nbsp;submittedtimestamp&quot; has value &quot;2015-06-02 10:27:11.780&quot;<br />
<br />
I want to make those 2 columns to the same format, which means 2015-06-02 10:27=2015-06-02 10:27<br />
<br />
select * <br />
from A a inner join B b on a. createdon = b. submittedtimestamp<br />
<br />
Can you help me on the query. <br />
<br />
Thanks,
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Hi Experts, 

In table A, the column " created on" has value "2015-06-02 10:27:11.787"
In table B, the column " submittedtimestamp" has value "2015-06-02 10:27:11.780"

I want to make those 2 columns to the same format, which means 2015-06-02 10:27=2015-06-02 10:27

select * 
from A a inner join B b on a. createdon = b. submittedtimestamp

Can you help me on the query. 

Thanks,

SQL, how to cast the timestamp to the same format

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