MYSQL insert after sub query with count -



MYSQL insert after sub query with count -

i'm trying insert info table when subquery count > 0.

this have far.

insert users_friends (userid, friendid) values (77, 100) (select count(id) users email = 'a@g.com') > 0

both queries work independently fyi.

this should simple prepare hopefully. cheers

sqlfiddle demo if there records 'a@g.com'

sqlfiddle demo if there not records 'a@g.com'

insert users_friends (userid, friendid) select 77, 100 users email = 'a@g.com' limit 1;

another way be:

insert users_friends (userid, friendid) select 77, 100 dual exists ( select * users email = 'a@g.com' ) ;

mysql insert subquery nested-queries

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