sql - Automatic connection of a new table in a existing Mysql database -


i have schema on db there tables. have create table schema , have connect others present on schema.i make example:

tables present:

school(idschool,numstud,idcountry); shop(idshop,idcountry);

new table:

country(idcountry,....);

i want know if there automatic mode connect them (it means not set foreign key manually).

i want know if there automatic mode connect them (it means not set foreign key manually).

no.

how dbms know country.idcountry , school.idcountry given same name intention connected, instead of accidentally?

you'll have use alter table ... add foreign key (...) references ...1 explicitly create foreign key in existing table.

1 or alter table ... add constraint ... foreign key (...) references ....


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