Group by a field in my sql and concatinate another field values as one string
0
My table is something like that.
Location | Building | Department |
L1 | B1 | D1
L2 | B2 | D2
L3 | B1 | D3
What I want to do is a query that counts locations and groups by buildings, but then display departments in that building as a string
Building | Count L | Departments |
B1 | 2 | D1,D3
B2 | 1 | D2
mysql
edited Nov 13 '18 at 0:32
dwir182
1,418618
asked Nov 13 '18 at 0:28
user6437700user6437700
6919
add a comment |
0
My table is something like that.
Location | Building | Department |
L1 | B1 | D1
L2 | B2 | D2
L3 | B1 | D3
What I want to do is a query that counts locations and groups by buildings, but then display departments in that building as a string
Building | Count L | Departments |
B1 | 2 | D1,D3
B2 | 1 | D2
mysql
edited Nov 13 '18 at 0:32
dwir182
1,418618
asked Nov 13 '18 at 0:28
user6437700user6437700
6919
add a comment |
0
0
0
My table is something like that.
Location | Building | Department |
L1 | B1 | D1
L2 | B2 | D2
L3 | B1 | D3
What I want to do is a query that counts locations and groups by buildings, but then display departments in that building as a string
Building | Count L | Departments |
B1 | 2 | D1,D3
B2 | 1 | D2
mysql
edited Nov 13 '18 at 0:32
dwir182
1,418618
asked Nov 13 '18 at 0:28
user6437700user6437700
6919
My table is something like that.
Location | Building | Department |
L1 | B1 | D1
L2 | B2 | D2
L3 | B1 | D3
What I want to do is a query that counts locations and groups by buildings, but then display departments in that building as a string
Building | Count L | Departments |
B1 | 2 | D1,D3
B2 | 1 | D2
mysql
mysql
edited Nov 13 '18 at 0:32
dwir182
1,418618
asked Nov 13 '18 at 0:28
user6437700user6437700
6919
edited Nov 13 '18 at 0:32
dwir182
1,418618
asked Nov 13 '18 at 0:28
user6437700user6437700
6919
edited Nov 13 '18 at 0:32
dwir182
1,418618
edited Nov 13 '18 at 0:32
dwir182
1,418618
edited Nov 13 '18 at 0:32
dwir182
1,418618
1,418618
asked Nov 13 '18 at 0:28
user6437700user6437700
6919
asked Nov 13 '18 at 0:28
user6437700user6437700
6919
asked Nov 13 '18 at 0:28
user6437700user6437700
6919
6919
add a comment |
add a comment |
2 Answers
2
active
oldest
votes
2
You can use Group_Concat function
Definition:
This function returns a string result with the concatenated non-NULL
values from a group. It returns NULL if there are no non-NULL values
The query would be like:
Select
Building,
count(Location) as `Count L`,
group_concat(Department) as Departments
From
your_table
Group By
Building
edited Nov 13 '18 at 5:16
Madhur Bhaiya
19.5k62236
answered Nov 13 '18 at 0:34
dwir182dwir182
1,418618
add a comment |
0
select building, Count(location) as 'Count L', GROUP_CONCAT(COALESCE(Departments,''))
from yourtable
group by building
This will help with nulls also.
answered Nov 13 '18 at 0:41
GauravsaGauravsa
2,3251816
2
Actually use backtick `` inmysqlto escape that name column.. Not single quote.. :)
– dwir182
Nov 13 '18 at 0:43
I thought the GROUP_CONCAT does not return the null values on its own. At least this is what I get from the documentation. "This function returns a string result with the concatenated non-NULL values from a group. It returns NULL if there are no non-NULL values " dev.mysql.com/doc/refman/8.0/en/…
– user6437700
Nov 14 '18 at 22:01
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
2
You can use Group_Concat function
Definition:
This function returns a string result with the concatenated non-NULL
values from a group. It returns NULL if there are no non-NULL values
The query would be like:
Select
Building,
count(Location) as `Count L`,
group_concat(Department) as Departments
From
your_table
Group By
Building
edited Nov 13 '18 at 5:16
Madhur Bhaiya
19.5k62236
answered Nov 13 '18 at 0:34
dwir182dwir182
1,418618
add a comment |
2
You can use Group_Concat function
Definition:
This function returns a string result with the concatenated non-NULL
values from a group. It returns NULL if there are no non-NULL values
The query would be like:
Select
Building,
count(Location) as `Count L`,
group_concat(Department) as Departments
From
your_table
Group By
Building
edited Nov 13 '18 at 5:16
Madhur Bhaiya
19.5k62236
answered Nov 13 '18 at 0:34
dwir182dwir182
1,418618
add a comment |
2
2
2
You can use Group_Concat function
Definition:
This function returns a string result with the concatenated non-NULL
values from a group. It returns NULL if there are no non-NULL values
The query would be like:
Select
Building,
count(Location) as `Count L`,
group_concat(Department) as Departments
From
your_table
Group By
Building
edited Nov 13 '18 at 5:16
Madhur Bhaiya
19.5k62236
answered Nov 13 '18 at 0:34
dwir182dwir182
1,418618
You can use Group_Concat function
Definition:
This function returns a string result with the concatenated non-NULL
values from a group. It returns NULL if there are no non-NULL values
The query would be like:
Select
Building,
count(Location) as `Count L`,
group_concat(Department) as Departments
From
your_table
Group By
Building
edited Nov 13 '18 at 5:16
Madhur Bhaiya
19.5k62236
answered Nov 13 '18 at 0:34
dwir182dwir182
1,418618
edited Nov 13 '18 at 5:16
Madhur Bhaiya
19.5k62236
edited Nov 13 '18 at 5:16
Madhur Bhaiya
19.5k62236
edited Nov 13 '18 at 5:16
Madhur Bhaiya
19.5k62236
19.5k62236
answered Nov 13 '18 at 0:34
dwir182dwir182
1,418618
answered Nov 13 '18 at 0:34
dwir182dwir182
1,418618
answered Nov 13 '18 at 0:34
dwir182dwir182
1,418618
1,418618
add a comment |
add a comment |
0
select building, Count(location) as 'Count L', GROUP_CONCAT(COALESCE(Departments,''))
from yourtable
group by building
This will help with nulls also.
answered Nov 13 '18 at 0:41
GauravsaGauravsa
2,3251816
2
Actually use backtick `` inmysqlto escape that name column.. Not single quote.. :)
– dwir182
Nov 13 '18 at 0:43
I thought the GROUP_CONCAT does not return the null values on its own. At least this is what I get from the documentation. "This function returns a string result with the concatenated non-NULL values from a group. It returns NULL if there are no non-NULL values " dev.mysql.com/doc/refman/8.0/en/…
– user6437700
Nov 14 '18 at 22:01
add a comment |
0
select building, Count(location) as 'Count L', GROUP_CONCAT(COALESCE(Departments,''))
from yourtable
group by building
This will help with nulls also.
answered Nov 13 '18 at 0:41
GauravsaGauravsa
2,3251816
2
Actually use backtick `` inmysqlto escape that name column.. Not single quote.. :)
– dwir182
Nov 13 '18 at 0:43
I thought the GROUP_CONCAT does not return the null values on its own. At least this is what I get from the documentation. "This function returns a string result with the concatenated non-NULL values from a group. It returns NULL if there are no non-NULL values " dev.mysql.com/doc/refman/8.0/en/…
– user6437700
Nov 14 '18 at 22:01
add a comment |
0
0
0
select building, Count(location) as 'Count L', GROUP_CONCAT(COALESCE(Departments,''))
from yourtable
group by building
This will help with nulls also.
answered Nov 13 '18 at 0:41
GauravsaGauravsa
2,3251816
select building, Count(location) as 'Count L', GROUP_CONCAT(COALESCE(Departments,''))
from yourtable
group by building
This will help with nulls also.
answered Nov 13 '18 at 0:41
GauravsaGauravsa
2,3251816
answered Nov 13 '18 at 0:41
GauravsaGauravsa
2,3251816
answered Nov 13 '18 at 0:41
GauravsaGauravsa
2,3251816
answered Nov 13 '18 at 0:41
GauravsaGauravsa
2,3251816
2,3251816
2
Actually use backtick `` inmysqlto escape that name column.. Not single quote.. :)
– dwir182
Nov 13 '18 at 0:43
I thought the GROUP_CONCAT does not return the null values on its own. At least this is what I get from the documentation. "This function returns a string result with the concatenated non-NULL values from a group. It returns NULL if there are no non-NULL values " dev.mysql.com/doc/refman/8.0/en/…
– user6437700
Nov 14 '18 at 22:01
add a comment |
2
Actually use backtick `` inmysqlto escape that name column.. Not single quote.. :)
– dwir182
Nov 13 '18 at 0:43
I thought the GROUP_CONCAT does not return the null values on its own. At least this is what I get from the documentation. "This function returns a string result with the concatenated non-NULL values from a group. It returns NULL if there are no non-NULL values " dev.mysql.com/doc/refman/8.0/en/…
– user6437700
Nov 14 '18 at 22:01
2
2
Actually use backtick `` in
mysql to escape that name column.. Not single quote.. :)– dwir182
Nov 13 '18 at 0:43
Actually use backtick `` in
mysql to escape that name column.. Not single quote.. :)– dwir182
Nov 13 '18 at 0:43
I thought the GROUP_CONCAT does not return the null values on its own. At least this is what I get from the documentation. "This function returns a string result with the concatenated non-NULL values from a group. It returns NULL if there are no non-NULL values " dev.mysql.com/doc/refman/8.0/en/…
– user6437700
Nov 14 '18 at 22:01
I thought the GROUP_CONCAT does not return the null values on its own. At least this is what I get from the documentation. "This function returns a string result with the concatenated non-NULL values from a group. It returns NULL if there are no non-NULL values " dev.mysql.com/doc/refman/8.0/en/…
– user6437700
Nov 14 '18 at 22:01
add a comment |
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