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I am able to filter for items created on a specific date with the following query (using today [03-06-2015] as an example):

"$filter=Created ge datetime'2015-03-06T05:00:00.000Z' and Created lt datetime'2015-03-07T05:00:00.000Z'"

But how do I check for dates that are NOT equal to today? I tried putting "not " before the first "Created" and wrapping the whole thing in parenthesis. I also tried putting "not" before the "ge" and "lt" operators.

Is this not possible to do without changing the query to the following?

"$filter=Created lt datetime'2015-03-06T05:00:00.000Z' or Created ge datetime'2015-03-07T05:00:00.000Z'"

Edit: I'm also noticing that not substringof(x,y) and substringof(x,y) eq false are also not working. For such a big push to REST calls, I'm not sure why there's so much that seems to have been forgotten or made very difficult to find.

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  • Is this SP Online/O365 or is this on-prem? Filtering in REST does not behave exactly the same way on the two. Mar 7, 2015 at 20:40
  • This is on-prem
    – Dinerdo
    Mar 7, 2015 at 23:47

1 Answer 1

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Since the original query:

$filter=Created ge datetime'<startdate>' and Created lt datetime'<enddate>'

includes all the items that have been created between startdate and enddate

the following query in opposite excludes items that have been created in this date interval:

$filter=Created lt datetime'<startdate>' or Created ge datetime'<enddate>'

Example

/_api/web/lists/getbytitle('Pages')/items?$filter=Created lt datetime'2015-03-06T05:00:00.000Z' or Created ge datetime'2015-03-07T05:00:00.000Z'
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  • Thank you for confirming, but I think this is the same example I used in my question. I was really just looking to know if there is a direct negation I could use for datetimes and substrings or if this was not possible.
    – Dinerdo
    Mar 7, 2015 at 23:48
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    Nope, it is not the same, the example the answer demonstrates how to return items that have been created NOT in the specified date interval Mar 7, 2015 at 23:54
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    Sorry.. it seems you are very much correct. I accidentally put an "and" in my example instead of an "or" though I had successfully been using it this way in my application. The example I listed would not return anything at all.
    – Dinerdo
    Mar 8, 2015 at 5:29

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