# KNIME and missing, empty, null, NaN cell content type **URL:** \ **Category:** KNIME Analytics Platform\ **Created:** [January 14, 2021, 6:01pm UTC](https://forum.knime.com/t/knime-and-missing-empty-null-nan-cell-content-type/29951 "2021-01-14T18:01:36Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![deicide\_bg](https://forum-cdn.knime.com/letter_avatar_proxy/v4/letter/d/3ec8ea/32.png) [@deicide\_bg](https://forum.knime.com/u/deicide_bg)\ **Post date:** [January 14, 2021, 6:01pm UTC](https://forum.knime.com/t/knime-and-missing-empty-null-nan-cell-content-type/29951/1 "2021-01-14T18:01:36Z")
I think it’s about time I asked this, considering other software packages handling those different types: - How does KNIME handle all those types? - How do those missing, empty, null, NaN cell content types (and more if present) differ from each other from a storage, I/O and performance aspect? - What are the advantages and disadvantages of keeping a column in such a type? (may be a matrix with tick-answers here) ---
**Author:** ![ScottF](https://forum-cdn.knime.com/user_avatar/forum.knime.com/scottf/32/61316_2.png) [@ScottF](https://forum.knime.com/u/ScottF)\ **Post date:** [January 19, 2021, 3:05pm UTC](https://forum.knime.com/t/knime-and-missing-empty-null-nan-cell-content-type/29951/2 "2021-01-19T15:05:30Z")
Hi @deicide_bg - Good questions all. I have asked internally for a bit more detail about this - let’s see what we can find out. ---
**Author:** ![system](https://forum-cdn.knime.com/uploads/default/original/1X/ab3ccf34482a0329361734a18199390177204f15.png) [@system](https://forum.knime.com/u/system)\ **Post date:** [July 21, 2021, 3:05am UTC](https://forum.knime.com/t/knime-and-missing-empty-null-nan-cell-content-type/29951/3 "2021-07-21T03:05:40Z")
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