Concatenate 3 Columns into 1 Column automatically Postgresql
0
Columns:
FirstName
MiddleName
LastName
I want to automatically concatenate into a 4th column called 'FullName' separated by spaces Every time data is entered or changed in one of the above 3 columns the 'FullName' column is updated.
Sample Data
postgresql concatenation
asked Nov 15 '18 at 1:09
OhmsyOhmsy
31
add a comment |
0
Columns:
FirstName
MiddleName
LastName
I want to automatically concatenate into a 4th column called 'FullName' separated by spaces Every time data is entered or changed in one of the above 3 columns the 'FullName' column is updated.
Sample Data
postgresql concatenation
asked Nov 15 '18 at 1:09
OhmsyOhmsy
31
see this thread so
– dwir182
Nov 15 '18 at 2:15
Please check my answer and accept/upvote it if it worked for you so that it would also help others seeking answers.Please read : stackoverflow.com/help/someone-answers
– Kaushik Nayak
Dec 19 '18 at 15:40
add a comment |
0
0
0
Columns:
FirstName
MiddleName
LastName
I want to automatically concatenate into a 4th column called 'FullName' separated by spaces Every time data is entered or changed in one of the above 3 columns the 'FullName' column is updated.
Sample Data
postgresql concatenation
asked Nov 15 '18 at 1:09
OhmsyOhmsy
31
Columns:
FirstName
MiddleName
LastName
I want to automatically concatenate into a 4th column called 'FullName' separated by spaces Every time data is entered or changed in one of the above 3 columns the 'FullName' column is updated.
Sample Data
postgresql concatenation
postgresql concatenation
asked Nov 15 '18 at 1:09
OhmsyOhmsy
31
asked Nov 15 '18 at 1:09
OhmsyOhmsy
31
edited Nov 15 '18 at 1:40
Ohmsy
asked Nov 15 '18 at 1:09
OhmsyOhmsy
31
asked Nov 15 '18 at 1:09
OhmsyOhmsy
31
asked Nov 15 '18 at 1:09
OhmsyOhmsy
31
31
see this thread so
– dwir182
Nov 15 '18 at 2:15
Please check my answer and accept/upvote it if it worked for you so that it would also help others seeking answers.Please read : stackoverflow.com/help/someone-answers
– Kaushik Nayak
Dec 19 '18 at 15:40
add a comment |
see this thread so
– dwir182
Nov 15 '18 at 2:15
Please check my answer and accept/upvote it if it worked for you so that it would also help others seeking answers.Please read : stackoverflow.com/help/someone-answers
– Kaushik Nayak
Dec 19 '18 at 15:40
see this thread so
– dwir182
Nov 15 '18 at 2:15
see this thread so
– dwir182
Nov 15 '18 at 2:15
Please check my answer and accept/upvote it if it worked for you so that it would also help others seeking answers.Please read : stackoverflow.com/help/someone-answers
– Kaushik Nayak
Dec 19 '18 at 15:40
Please check my answer and accept/upvote it if it worked for you so that it would also help others seeking answers.Please read : stackoverflow.com/help/someone-answers
– Kaushik Nayak
Dec 19 '18 at 15:40
add a comment |
2 Answers
2
active
oldest
votes
0
giving a mysql answer since you left a mysql tag:
In MySQL you can create a generated column, using the CONCAT_WS function.
answered Nov 15 '18 at 1:19
danblackdanblack
2,7021420
add a comment |
0
Postgres doesn't support( as of Version 11 ) a Virtual column / derived column.
You may create a View instead.
CREATE OR replace VIEW v_names
AS
SELECT firstname,
middlename,
lastname,
firstname
||CASE
WHEN nullif(middlename, '') IS NULL THEN ''
ELSE ' '
||middlename
END
||CASE
WHEN nullif(lastname, '') IS NULL THEN ''
ELSE ' '
||lastname
END AS FullName
FROM names;
knayak=# INSERT INTO names(FirstName,MiddleName,LastName) VALUES ( 'John', 'Maynard','Keynes');
INSERT 0 1
knayak=# INSERT INTO names(FirstName,MiddleName,LastName) VALUES ( 'John','','Doe');
INSERT 0 1
knayak=# select * from v_names;
firstname | middlename | lastname | fullname
-----------+------------+----------+---------------------
John | Maynard | Keynes | John Maynard Keynes
John | | Doe | John Doe
answered Nov 15 '18 at 3:33
Kaushik NayakKaushik Nayak
20.9k41332
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
0
giving a mysql answer since you left a mysql tag:
In MySQL you can create a generated column, using the CONCAT_WS function.
answered Nov 15 '18 at 1:19
danblackdanblack
2,7021420
add a comment |
0
giving a mysql answer since you left a mysql tag:
In MySQL you can create a generated column, using the CONCAT_WS function.
answered Nov 15 '18 at 1:19
danblackdanblack
2,7021420
add a comment |
0
0
0
giving a mysql answer since you left a mysql tag:
In MySQL you can create a generated column, using the CONCAT_WS function.
answered Nov 15 '18 at 1:19
danblackdanblack
2,7021420
giving a mysql answer since you left a mysql tag:
In MySQL you can create a generated column, using the CONCAT_WS function.
answered Nov 15 '18 at 1:19
danblackdanblack
2,7021420
answered Nov 15 '18 at 1:19
danblackdanblack
2,7021420
answered Nov 15 '18 at 1:19
danblackdanblack
2,7021420
answered Nov 15 '18 at 1:19
danblackdanblack
2,7021420
2,7021420
add a comment |
add a comment |
0
Postgres doesn't support( as of Version 11 ) a Virtual column / derived column.
You may create a View instead.
CREATE OR replace VIEW v_names
AS
SELECT firstname,
middlename,
lastname,
firstname
||CASE
WHEN nullif(middlename, '') IS NULL THEN ''
ELSE ' '
||middlename
END
||CASE
WHEN nullif(lastname, '') IS NULL THEN ''
ELSE ' '
||lastname
END AS FullName
FROM names;
knayak=# INSERT INTO names(FirstName,MiddleName,LastName) VALUES ( 'John', 'Maynard','Keynes');
INSERT 0 1
knayak=# INSERT INTO names(FirstName,MiddleName,LastName) VALUES ( 'John','','Doe');
INSERT 0 1
knayak=# select * from v_names;
firstname | middlename | lastname | fullname
-----------+------------+----------+---------------------
John | Maynard | Keynes | John Maynard Keynes
John | | Doe | John Doe
answered Nov 15 '18 at 3:33
Kaushik NayakKaushik Nayak
20.9k41332
add a comment |
0
Postgres doesn't support( as of Version 11 ) a Virtual column / derived column.
You may create a View instead.
CREATE OR replace VIEW v_names
AS
SELECT firstname,
middlename,
lastname,
firstname
||CASE
WHEN nullif(middlename, '') IS NULL THEN ''
ELSE ' '
||middlename
END
||CASE
WHEN nullif(lastname, '') IS NULL THEN ''
ELSE ' '
||lastname
END AS FullName
FROM names;
knayak=# INSERT INTO names(FirstName,MiddleName,LastName) VALUES ( 'John', 'Maynard','Keynes');
INSERT 0 1
knayak=# INSERT INTO names(FirstName,MiddleName,LastName) VALUES ( 'John','','Doe');
INSERT 0 1
knayak=# select * from v_names;
firstname | middlename | lastname | fullname
-----------+------------+----------+---------------------
John | Maynard | Keynes | John Maynard Keynes
John | | Doe | John Doe
answered Nov 15 '18 at 3:33
Kaushik NayakKaushik Nayak
20.9k41332
add a comment |
0
0
0
Postgres doesn't support( as of Version 11 ) a Virtual column / derived column.
You may create a View instead.
CREATE OR replace VIEW v_names
AS
SELECT firstname,
middlename,
lastname,
firstname
||CASE
WHEN nullif(middlename, '') IS NULL THEN ''
ELSE ' '
||middlename
END
||CASE
WHEN nullif(lastname, '') IS NULL THEN ''
ELSE ' '
||lastname
END AS FullName
FROM names;
knayak=# INSERT INTO names(FirstName,MiddleName,LastName) VALUES ( 'John', 'Maynard','Keynes');
INSERT 0 1
knayak=# INSERT INTO names(FirstName,MiddleName,LastName) VALUES ( 'John','','Doe');
INSERT 0 1
knayak=# select * from v_names;
firstname | middlename | lastname | fullname
-----------+------------+----------+---------------------
John | Maynard | Keynes | John Maynard Keynes
John | | Doe | John Doe
answered Nov 15 '18 at 3:33
Kaushik NayakKaushik Nayak
20.9k41332
Postgres doesn't support( as of Version 11 ) a Virtual column / derived column.
You may create a View instead.
CREATE OR replace VIEW v_names
AS
SELECT firstname,
middlename,
lastname,
firstname
||CASE
WHEN nullif(middlename, '') IS NULL THEN ''
ELSE ' '
||middlename
END
||CASE
WHEN nullif(lastname, '') IS NULL THEN ''
ELSE ' '
||lastname
END AS FullName
FROM names;
knayak=# INSERT INTO names(FirstName,MiddleName,LastName) VALUES ( 'John', 'Maynard','Keynes');
INSERT 0 1
knayak=# INSERT INTO names(FirstName,MiddleName,LastName) VALUES ( 'John','','Doe');
INSERT 0 1
knayak=# select * from v_names;
firstname | middlename | lastname | fullname
-----------+------------+----------+---------------------
John | Maynard | Keynes | John Maynard Keynes
John | | Doe | John Doe
answered Nov 15 '18 at 3:33
Kaushik NayakKaushik Nayak
20.9k41332
answered Nov 15 '18 at 3:33
Kaushik NayakKaushik Nayak
20.9k41332
answered Nov 15 '18 at 3:33
Kaushik NayakKaushik Nayak
20.9k41332
answered Nov 15 '18 at 3:33
Kaushik NayakKaushik Nayak
20.9k41332
20.9k41332
add a comment |
add a comment |
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see this thread so
– dwir182
Nov 15 '18 at 2:15
Please check my answer and accept/upvote it if it worked for you so that it would also help others seeking answers.Please read : stackoverflow.com/help/someone-answers
– Kaushik Nayak
Dec 19 '18 at 15:40