Multiple table inner join in mysql query
0
I have a link table linking IDs to 4 different tables:
table 1
Id name
----------
1 eduard
2 remus
3 gabi
table 2
Id ocupation
-----------------
1 manager
2 office worker
table 3
Id sex
----------
1 male
2 female
table 4
Id machine
------------
1 audi
2 mercedes
3 renault
assoc_table
Id Id_table1 Id_table2 Id_table3 Id_table4
----------------------------------------------
1 1 1 1 1
2 2 1 1 3
3 3 2 1 3
I want to link these 4 tables together so I can look for example:
All colleagues driving the Mercedes car ....
mysql sql
edited Dec 29 '18 at 7:57
Barbaros Özhan
12.6k71532
asked Dec 28 '18 at 19:32
CoderCoder42CoderCoder42
33
add a comment |
0
I have a link table linking IDs to 4 different tables:
table 1
Id name
----------
1 eduard
2 remus
3 gabi
table 2
Id ocupation
-----------------
1 manager
2 office worker
table 3
Id sex
----------
1 male
2 female
table 4
Id machine
------------
1 audi
2 mercedes
3 renault
assoc_table
Id Id_table1 Id_table2 Id_table3 Id_table4
----------------------------------------------
1 1 1 1 1
2 2 1 1 3
3 3 2 1 3
I want to link these 4 tables together so I can look for example:
All colleagues driving the Mercedes car ....
mysql sql
edited Dec 29 '18 at 7:57
Barbaros Özhan
12.6k71532
asked Dec 28 '18 at 19:32
CoderCoder42CoderCoder42
33
Look upJOINs.
– sticky bit
Dec 28 '18 at 19:41
1
It's not clear what are you expect. Please, provide some example of expected output ?
– MorganFreeFarm
Dec 28 '18 at 19:47
1
how can I merge all 4 tables based on ids?
– CoderCoder42
Dec 28 '18 at 19:50
add a comment |
0
0
0
I have a link table linking IDs to 4 different tables:
table 1
Id name
----------
1 eduard
2 remus
3 gabi
table 2
Id ocupation
-----------------
1 manager
2 office worker
table 3
Id sex
----------
1 male
2 female
table 4
Id machine
------------
1 audi
2 mercedes
3 renault
assoc_table
Id Id_table1 Id_table2 Id_table3 Id_table4
----------------------------------------------
1 1 1 1 1
2 2 1 1 3
3 3 2 1 3
I want to link these 4 tables together so I can look for example:
All colleagues driving the Mercedes car ....
mysql sql
edited Dec 29 '18 at 7:57
Barbaros Özhan
12.6k71532
asked Dec 28 '18 at 19:32
CoderCoder42CoderCoder42
33
I have a link table linking IDs to 4 different tables:
table 1
Id name
----------
1 eduard
2 remus
3 gabi
table 2
Id ocupation
-----------------
1 manager
2 office worker
table 3
Id sex
----------
1 male
2 female
table 4
Id machine
------------
1 audi
2 mercedes
3 renault
assoc_table
Id Id_table1 Id_table2 Id_table3 Id_table4
----------------------------------------------
1 1 1 1 1
2 2 1 1 3
3 3 2 1 3
I want to link these 4 tables together so I can look for example:
All colleagues driving the Mercedes car ....
mysql sql
mysql sql
edited Dec 29 '18 at 7:57
Barbaros Özhan
12.6k71532
asked Dec 28 '18 at 19:32
CoderCoder42CoderCoder42
33
edited Dec 29 '18 at 7:57
Barbaros Özhan
12.6k71532
asked Dec 28 '18 at 19:32
CoderCoder42CoderCoder42
33
edited Dec 29 '18 at 7:57
Barbaros Özhan
12.6k71532
edited Dec 29 '18 at 7:57
Barbaros Özhan
12.6k71532
edited Dec 29 '18 at 7:57
Barbaros Özhan
12.6k71532
12.6k71532
asked Dec 28 '18 at 19:32
CoderCoder42CoderCoder42
33
asked Dec 28 '18 at 19:32
CoderCoder42CoderCoder42
33
asked Dec 28 '18 at 19:32
CoderCoder42CoderCoder42
33
33
Look upJOINs.
– sticky bit
Dec 28 '18 at 19:41
1
It's not clear what are you expect. Please, provide some example of expected output ?
– MorganFreeFarm
Dec 28 '18 at 19:47
1
how can I merge all 4 tables based on ids?
– CoderCoder42
Dec 28 '18 at 19:50
add a comment |
Look upJOINs.
– sticky bit
Dec 28 '18 at 19:41
1
It's not clear what are you expect. Please, provide some example of expected output ?
– MorganFreeFarm
Dec 28 '18 at 19:47
1
how can I merge all 4 tables based on ids?
– CoderCoder42
Dec 28 '18 at 19:50
Look up
JOINs.– sticky bit
Dec 28 '18 at 19:41
Look up
JOINs.– sticky bit
Dec 28 '18 at 19:41
1
1
It's not clear what are you expect. Please, provide some example of expected output ?
– MorganFreeFarm
Dec 28 '18 at 19:47
It's not clear what are you expect. Please, provide some example of expected output ?
– MorganFreeFarm
Dec 28 '18 at 19:47
1
1
how can I merge all 4 tables based on ids?
– CoderCoder42
Dec 28 '18 at 19:50
how can I merge all 4 tables based on ids?
– CoderCoder42
Dec 28 '18 at 19:50
add a comment |
1 Answer
1
active
oldest
votes
2
SELECT
t1.name, t2.name, t3.name, t4.machine
FROM
assoc_table ast
INNER JOIN
table1 t1 ON t1.Id = ast.Id_table1
INNER JOIN
table2 t2 ON t2.Id = ast.Id_table2
INNER JOIN
table3 t3 ON t3.Id = ast.Id_table3
INNER JOIN
table4 t4 ON t4.Id = ast.Id_table4
WHERE
t4.Id = 2
answered Dec 28 '18 at 19:54
Zia Ur RehmanZia Ur Rehman
1165
or if you don't know the id you can write where t4.machine = 'mercedes'
– Zia Ur Rehman
Dec 28 '18 at 20:01
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
2
SELECT
t1.name, t2.name, t3.name, t4.machine
FROM
assoc_table ast
INNER JOIN
table1 t1 ON t1.Id = ast.Id_table1
INNER JOIN
table2 t2 ON t2.Id = ast.Id_table2
INNER JOIN
table3 t3 ON t3.Id = ast.Id_table3
INNER JOIN
table4 t4 ON t4.Id = ast.Id_table4
WHERE
t4.Id = 2
answered Dec 28 '18 at 19:54
Zia Ur RehmanZia Ur Rehman
1165
or if you don't know the id you can write where t4.machine = 'mercedes'
– Zia Ur Rehman
Dec 28 '18 at 20:01
add a comment |
2
SELECT
t1.name, t2.name, t3.name, t4.machine
FROM
assoc_table ast
INNER JOIN
table1 t1 ON t1.Id = ast.Id_table1
INNER JOIN
table2 t2 ON t2.Id = ast.Id_table2
INNER JOIN
table3 t3 ON t3.Id = ast.Id_table3
INNER JOIN
table4 t4 ON t4.Id = ast.Id_table4
WHERE
t4.Id = 2
answered Dec 28 '18 at 19:54
Zia Ur RehmanZia Ur Rehman
1165
or if you don't know the id you can write where t4.machine = 'mercedes'
– Zia Ur Rehman
Dec 28 '18 at 20:01
add a comment |
2
2
2
SELECT
t1.name, t2.name, t3.name, t4.machine
FROM
assoc_table ast
INNER JOIN
table1 t1 ON t1.Id = ast.Id_table1
INNER JOIN
table2 t2 ON t2.Id = ast.Id_table2
INNER JOIN
table3 t3 ON t3.Id = ast.Id_table3
INNER JOIN
table4 t4 ON t4.Id = ast.Id_table4
WHERE
t4.Id = 2
answered Dec 28 '18 at 19:54
Zia Ur RehmanZia Ur Rehman
1165
SELECT
t1.name, t2.name, t3.name, t4.machine
FROM
assoc_table ast
INNER JOIN
table1 t1 ON t1.Id = ast.Id_table1
INNER JOIN
table2 t2 ON t2.Id = ast.Id_table2
INNER JOIN
table3 t3 ON t3.Id = ast.Id_table3
INNER JOIN
table4 t4 ON t4.Id = ast.Id_table4
WHERE
t4.Id = 2
answered Dec 28 '18 at 19:54
Zia Ur RehmanZia Ur Rehman
1165
answered Dec 28 '18 at 19:54
Zia Ur RehmanZia Ur Rehman
1165
answered Dec 28 '18 at 19:54
Zia Ur RehmanZia Ur Rehman
1165
answered Dec 28 '18 at 19:54
Zia Ur RehmanZia Ur Rehman
1165
1165
or if you don't know the id you can write where t4.machine = 'mercedes'
– Zia Ur Rehman
Dec 28 '18 at 20:01
add a comment |
or if you don't know the id you can write where t4.machine = 'mercedes'
– Zia Ur Rehman
Dec 28 '18 at 20:01
or if you don't know the id you can write where t4.machine = 'mercedes'
– Zia Ur Rehman
Dec 28 '18 at 20:01
or if you don't know the id you can write where t4.machine = 'mercedes'
– Zia Ur Rehman
Dec 28 '18 at 20:01
add a comment |
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Look up
JOINs.– sticky bit
Dec 28 '18 at 19:41
1
It's not clear what are you expect. Please, provide some example of expected output ?
– MorganFreeFarm
Dec 28 '18 at 19:47
1
how can I merge all 4 tables based on ids?
– CoderCoder42
Dec 28 '18 at 19:50