# Asof Join Exercise 11 - Session 2 - kdb+/q Developer (Level 1)

**URL:** <https://forum.kx.com/t/asof-join-exercise-11-session-2-kdb-q-developer-level-1/14178>\
**Category:** Academy Support\
**Tags:** imported\
**Created:** [March 23, 2025, 10:50pm UTC](https://forum.kx.com/t/asof-join-exercise-11-session-2-kdb-q-developer-level-1/14178 "2025-03-23T22:50:17Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Xilin](https://avatars.discourse-cdn.com/v4/letter/x/c89c15/32.png) [@Xilin](https://forum.kx.com/u/Xilin)\
**Post date:** [March 23, 2025, 10:50pm UTC](https://forum.kx.com/t/asof-join-exercise-11-session-2-kdb-q-developer-level-1/14178/1 "2025-03-23T22:50:17Z")

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[https://learninghub.kx.com/forums/topic/asof-join-exercise-11-session-2-kdb-q-developer-level-1](https://learninghub.kx.com/forums/topic/asof-join-exercise-11-session-2-kdb-q-developer-level-1)

for Exercise 11 of Asof Join in Session 2 of **kdb+/q Developer (Level 1)**, shall we use ``aj0` instead of `aj` to keep the real `pickup\_time` in the actual record (jan09, the right-hand table) instead of the boundary time

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**Author:** ![rsiegler](https://sea2.discourse-cdn.com/flex002/user_avatar/forum.kx.com/rsiegler/32/45_2.png) [@rsiegler](https://forum.kx.com/u/rsiegler)\
**Post date:** [March 24, 2025, 3:22pm UTC](https://forum.kx.com/t/asof-join-exercise-11-session-2-kdb-q-developer-level-1/14178/2 "2025-03-24T15:22:35Z")

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Hey Xilin,

For this use-case, it looks like aj0 does make more sense. I will talk with the team about getting this updated.&nbsp;

Thanks!

Ryan