# Using findfirst with for multiple values and columns in a Dataframe?

**URL:** <https://discourse.julialang.org/t/using-findfirst-with-for-multiple-values-and-columns-in-a-dataframe/111953>\
**Category:** New to Julia\
**Tags:** dataframes\
**Created:** [March 21, 2024, 9:35pm UTC](https://discourse.julialang.org/t/using-findfirst-with-for-multiple-values-and-columns-in-a-dataframe/111953 "2024-03-21T21:35:56Z")\
**Posts on this page:** 1\
**Showing post:** 13

<div class="post-metadata">

**Author:** ![Dan](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/dan/32/42581_2.png) [@Dan](https://discourse.julialang.org/u/Dan)\
**Post date:** [March 23, 2024, 3:31am UTC](https://discourse.julialang.org/t/using-findfirst-with-for-multiple-values-and-columns-in-a-dataframe/111953/13 "2024-03-23T03:31:59Z")

</div>

So try to benchmark this:

```julia
df3[searchsortedfirst(1:nrow(df3),0; 
  by=i->(i==0 ? (Date(2024,2,23),Time(10,00,00)) :
  (df3.dates[i],df3.times[i]))
), :]

```

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_[View the full topic](https://discourse.julialang.org/t/using-findfirst-with-for-multiple-values-and-columns-in-a-dataframe/111953)._