Reply To: need help on a query

[rocuinneagain]

• except https://code.kx.com/q/ref/except/
• ‘ form of each https://code.kx.com/q/ref/maps/#each

q)tab:([] timestamp:1 2 3;timeWin:(1 2 3;1 2 4 5;3 1 1 3 5))
q)tab
timestamp timeWin
-------------------
1         1 2 3
2         1 2 4 5
3         3 1 1 3 5
q)update timeWin:except'[timeWin;timestamp] from tab
timestamp timeWin
-----------------
1         2 3
2         1 4 5
3         1 1 5