Re: why sv needs ,’ here?

[cillianreilly]

David has already answered the question here, but it’s worth noting that you can do this operation very succinctly using .Q.dd:

q)update symsrc:.Q.dd'[sym;src]from trades 

time                          sym src price size symsrc 
-------------------------------------------------------- 
2023.06.04D10:22:20.088377000 ORCL L 40.67 3984 ORCL.L