sql - Creating teigger error in mysql 5.59 -


everyone. want count id's count in a(a table) when after inserting record,my sql bleow:

create trigger check_data_count after insert on each row begin      select @data_count:=count(*) id = new.id; end;

as see, had make mistakes(^_^).

my mysql version info: ver 14.14 ditrib 5.5.9,for win64(x86).the error message is:

error code : 1064 have error in sql syntax; check manual corresponds mysql    server version right syntax use near '' @ line 8  execution time : 00:00:00:000 transfer time  : 00:00:00:000 total time     : 00:00:00:000 ---------------------------------------------------  query : end  error code : 1064 have error in sql syntax; check manual corresponds mysql server version right syntax use near 'end' @ line 1  execution time : 00:00:00:000 transfer time  : 00:00:00:000 total time     : 00:00:00:000

at last, everyone.

it not possible select, update, delete on same table trigger fired.

from mysql reference manual:

b.5.9: can triggers access tables?  trigger can access both old , new data in own table. trigger can affect other tables, not permitted modify table being used (for reading or writing) statement invoked function or trigger.

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