Question

I have two tables. t1 and t2. I want to select the values that are from t1 and occurred in t2. What I wrote is the following:

select col1 from t1, t2
where t1.col1y=t2.col2;

Is this is the right way to search for the value ?

Answer 1

Yes, that works, but it’s the old form of writing a join. Use the new form:

select t1.col1
from t1
inner join t2 on t1.col1 = t2.col2