Question Give review for the ids in the tables based on their occurrences in the tables.


DDL Commands
drop table sources;
drop table targets
create table sources(
sid int,
sname varchar(50)
);
create table targets(
tid int,
tname varchar(50)
);
insert into sources values(1,'A'),(2,'B'),(3,'C'),(4,'D');
insert into targets values(1,'A'),(2,'B'),(4,'X'),(5,'F');
select * from sources;
select * from targets;

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