Mixing
MYSQL UPDATE query for multiple values
Looking to update a table from values in another table. The tables are joined on a person's first and last name. The issue is we have duplicate records where we are trying to concatenate a value for each record, however when the query goes off it only finds the first record. Table1 and Table2 both contain around 20k records.
Current query
UPDATE table1, table2 SET table1.value = CONCAT(table1.pet,",",table2.pet)
WHERE table1.fName = table2.fName AND table1.lName = table2.lName;
Table1 Example
fName lName pet
===================
John Doe bird
Jane Doe bird
Table2 Example
fName lName pet
===================
John Doe dog
Jane Doe dog
John Doe fish
John Doe cat
Expected Results in Table1
fName lName pet
===================
John Doe bird,dog,fish,cat
Jane Doe bird,dog
Results we are currently getting
fName lName pet
===================
John Doe bird,dog
Jane Doe bird,dog
Any help is appreciated!
mysql
asked Jan 2 at 4:52
cjonescjones
125
add a comment |
Looking to update a table from values in another table. The tables are joined on a person's first and last name. The issue is we have duplicate records where we are trying to concatenate a value for each record, however when the query goes off it only finds the first record. Table1 and Table2 both contain around 20k records.
Current query
UPDATE table1, table2 SET table1.value = CONCAT(table1.pet,",",table2.pet)
WHERE table1.fName = table2.fName AND table1.lName = table2.lName;
Table1 Example
fName lName pet
===================
John Doe bird
Jane Doe bird
Table2 Example
fName lName pet
===================
John Doe dog
Jane Doe dog
John Doe fish
John Doe cat
Expected Results in Table1
fName lName pet
===================
John Doe bird,dog,fish,cat
Jane Doe bird,dog
Results we are currently getting
fName lName pet
===================
John Doe bird,dog
Jane Doe bird,dog
Any help is appreciated!
mysql
asked Jan 2 at 4:52
cjonescjones
125
add a comment |
Looking to update a table from values in another table. The tables are joined on a person's first and last name. The issue is we have duplicate records where we are trying to concatenate a value for each record, however when the query goes off it only finds the first record. Table1 and Table2 both contain around 20k records.
Current query
UPDATE table1, table2 SET table1.value = CONCAT(table1.pet,",",table2.pet)
WHERE table1.fName = table2.fName AND table1.lName = table2.lName;
Table1 Example
fName lName pet
===================
John Doe bird
Jane Doe bird
Table2 Example
fName lName pet
===================
John Doe dog
Jane Doe dog
John Doe fish
John Doe cat
Expected Results in Table1
fName lName pet
===================
John Doe bird,dog,fish,cat
Jane Doe bird,dog
Results we are currently getting
fName lName pet
===================
John Doe bird,dog
Jane Doe bird,dog
Any help is appreciated!
mysql
asked Jan 2 at 4:52
cjonescjones
125
Looking to update a table from values in another table. The tables are joined on a person's first and last name. The issue is we have duplicate records where we are trying to concatenate a value for each record, however when the query goes off it only finds the first record. Table1 and Table2 both contain around 20k records.
Current query
UPDATE table1, table2 SET table1.value = CONCAT(table1.pet,",",table2.pet)
WHERE table1.fName = table2.fName AND table1.lName = table2.lName;
Table1 Example
fName lName pet
===================
John Doe bird
Jane Doe bird
Table2 Example
fName lName pet
===================
John Doe dog
Jane Doe dog
John Doe fish
John Doe cat
Expected Results in Table1
fName lName pet
===================
John Doe bird,dog,fish,cat
Jane Doe bird,dog
Results we are currently getting
fName lName pet
===================
John Doe bird,dog
Jane Doe bird,dog
Any help is appreciated!
mysql
mysql
asked Jan 2 at 4:52
cjonescjones
125
asked Jan 2 at 4:52
cjonescjones
125
edited Jan 2 at 5:02
cjones
asked Jan 2 at 4:52
cjonescjones
125
asked Jan 2 at 4:52
cjonescjones
125
asked Jan 2 at 4:52
cjonescjones
125
125
add a comment |
add a comment |
2 Answers
2
active
oldest
votes
You can try below - using group_concat() function
update Table1 a
join
(
select fName,lName, group_concat(pet) as pet1
from Table2
group by fName,lName
)b on a.fName=b.fName and a.lName=b.lName
set a.pet=concat(a.pet,',',pet1)
answered Jan 2 at 4:57
fa06fa06
17.1k21018
1
group_concat have a text limit, If this was small on his server, this could cause a trouble.
– Anirudha Gupta
Jan 2 at 4:59
1
This worked, thank you!
– cjones
Jan 2 at 5:12
add a comment |
you can try this also
UPDATE Table1 X SET
X.Column1=Y.column2
from(
select Column2 from tabel2
where column3=column4
) Y where X.column4=Y.column4
answered Jan 2 at 5:04
KandyKandy
348414
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
You can try below - using group_concat() function
update Table1 a
join
(
select fName,lName, group_concat(pet) as pet1
from Table2
group by fName,lName
)b on a.fName=b.fName and a.lName=b.lName
set a.pet=concat(a.pet,',',pet1)
answered Jan 2 at 4:57
fa06fa06
17.1k21018
1
group_concat have a text limit, If this was small on his server, this could cause a trouble.
– Anirudha Gupta
Jan 2 at 4:59
1
This worked, thank you!
– cjones
Jan 2 at 5:12
add a comment |
You can try below - using group_concat() function
update Table1 a
join
(
select fName,lName, group_concat(pet) as pet1
from Table2
group by fName,lName
)b on a.fName=b.fName and a.lName=b.lName
set a.pet=concat(a.pet,',',pet1)
answered Jan 2 at 4:57
fa06fa06
17.1k21018
1
group_concat have a text limit, If this was small on his server, this could cause a trouble.
– Anirudha Gupta
Jan 2 at 4:59
1
This worked, thank you!
– cjones
Jan 2 at 5:12
add a comment |
You can try below - using group_concat() function
update Table1 a
join
(
select fName,lName, group_concat(pet) as pet1
from Table2
group by fName,lName
)b on a.fName=b.fName and a.lName=b.lName
set a.pet=concat(a.pet,',',pet1)
answered Jan 2 at 4:57
fa06fa06
17.1k21018
You can try below - using group_concat() function
update Table1 a
join
(
select fName,lName, group_concat(pet) as pet1
from Table2
group by fName,lName
)b on a.fName=b.fName and a.lName=b.lName
set a.pet=concat(a.pet,',',pet1)
answered Jan 2 at 4:57
fa06fa06
17.1k21018
answered Jan 2 at 4:57
fa06fa06
17.1k21018
answered Jan 2 at 4:57
fa06fa06
17.1k21018
answered Jan 2 at 4:57
fa06fa06
17.1k21018
17.1k21018
1
group_concat have a text limit, If this was small on his server, this could cause a trouble.
– Anirudha Gupta
Jan 2 at 4:59
1
This worked, thank you!
– cjones
Jan 2 at 5:12
add a comment |
1
group_concat have a text limit, If this was small on his server, this could cause a trouble.
– Anirudha Gupta
Jan 2 at 4:59
1
This worked, thank you!
– cjones
Jan 2 at 5:12
1
1
group_concat have a text limit, If this was small on his server, this could cause a trouble.
– Anirudha Gupta
Jan 2 at 4:59
group_concat have a text limit, If this was small on his server, this could cause a trouble.
– Anirudha Gupta
Jan 2 at 4:59
1
1
This worked, thank you!
– cjones
Jan 2 at 5:12
This worked, thank you!
– cjones
Jan 2 at 5:12
add a comment |
you can try this also
UPDATE Table1 X SET
X.Column1=Y.column2
from(
select Column2 from tabel2
where column3=column4
) Y where X.column4=Y.column4
answered Jan 2 at 5:04
KandyKandy
348414
add a comment |
you can try this also
UPDATE Table1 X SET
X.Column1=Y.column2
from(
select Column2 from tabel2
where column3=column4
) Y where X.column4=Y.column4
answered Jan 2 at 5:04
KandyKandy
348414
add a comment |
you can try this also
UPDATE Table1 X SET
X.Column1=Y.column2
from(
select Column2 from tabel2
where column3=column4
) Y where X.column4=Y.column4
answered Jan 2 at 5:04
KandyKandy
348414
you can try this also
UPDATE Table1 X SET
X.Column1=Y.column2
from(
select Column2 from tabel2
where column3=column4
) Y where X.column4=Y.column4
answered Jan 2 at 5:04
KandyKandy
348414
edited Jan 22 at 5:31
answered Jan 2 at 5:04
KandyKandy
348414
answered Jan 2 at 5:04
KandyKandy
348414
answered Jan 2 at 5:04
KandyKandy
348414
348414
add a comment |
add a comment |
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