mysql - Abort insertion if duplicate -


i want insert 5 new lines in table if , if none of 5 lines there. if 1 of them in table, want abort insertion (without updating anything), , know 1 (or ones) there.

i can think of long ways (such looking if select col1 col1 in (value1,value2,...) returns anything, , inserting if doesn't)

i guess transactions can this, i'm learning how work. however, don't know if transaction can give me entry(ies) (are) duplicate(s).

with or without transactions, there way in 1 or 2 queries ?

thanks

i doubt there better way solution mentioned: first run select query , if doesn't return anything, insert. asked in 1 or 2 queries. 2 queries, pretty efficient in view. can't think of efficient way use transactions this. transactions when have multiple insert or update queries, have one.


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