Question

I want to fetch a data from two tables even if the second table has no data. I need empty values for no data.

For e.g. table 1 has the fields

• id
• name
• password

table 2 has

• id(foreign key refer id from table 1)
• f1
• f2
• f3

Some time table 2 doesn’t have the value for a particular user. For that I need the null values.

Here I give sample input and expected output

table1
id name password
1  nam1  pass1
2  nam2  pass2

table 2
id f1 f2 f3
1   1  2  3

sample output
id name password f1 f2 f3
1  nam1  pass1   1  2  3
2  nam2  pass2   null null null

I need a query to fetch a data.

Answer 1

You need SELECT with LEFT JOIN

Sample query will be like:

SELECT 
    table1.id,table1.name,table1.password,table2.f1,
    table2.f2,table2.f3 
FROM table1 
LEFT JOIN table2 
ON table1.id=table2.id