Interview Question
Quality Assurance EngineersCountry: India
Interview Type: In-Person
create table A
( id int,
name text
);
insert into A values(1,'aa');
insert into A values(2,'aaa');
insert into A values(3,'aaaa');
create table B
( id int,
name text
);
insert into B values(3,'bb');
insert into B values(4,'bbb');
insert into B values(5,'bbbb');
Query:
select B.* from B
left outer join A
on B.id = A.id where A.name is null ;
OUTPUT:
ID NAME
4 bbb
5 bbbb
create table t1(id int, name varchar(20))
- Ayushi Ag June 08, 2014create table t2(id int,name varchar(20))
insert into t1 values(1,'abc')
insert into t2 values(1,'abc')
insert into t2 values(2,'abc')
insert into t1 values(3,'abc')
select t2.* from t2 left join t1 on t1.id = t2.id where t1.id is null