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megha
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create table a(name varchar(10), phno integer); insert into a values('megha',232); select * from a; create table b(phno integer, address varchar(10)); insert into b values(123,'abc'),(234,'hfg'); select * from b; insert into a values('Neetu',234); select * from a; select * from a left join b on a.phno=b.phno;
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Execution time: 0,02 sec, rows selected: 7, rows affected: 4, absolute service time: 0,2 sec, absolute service time: 0,21 sec
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name
phno
1
megha
232
phno
address
1
123
abc
2
234
hfg
name
phno
1
megha
232
2
Neetu
234
name
phno
phno
address
1
megha
232
NULL
NULL
2
Neetu
234
234
hfg