Join two tables, Inserting values into second table
I tried searching here for a similar solution but didn't see one so I was wondering what is the best way to accomplish the following.
I have a table
Table1 t1
t1.c1 ..
1
2
3
4
5
6
values
and have another table like this
Table2 t2
t2.c1 t2.c2 t2.c3 ..
1 v1 v2
2 v3 v4
3 v5 v6
5 v7 v8
7 v9 v10
I need to insert/update table 2
where it has t2.c1 = 7
so the result would look like this
t2.c1 t2.c2 t2.c3 ..
1 v1 v2
2 v3 v4
3 v5 v6
5 v7 v8
1 v9 v10
2 v9 v10
3 v9 v10
4 v9 v10
5 v9 v10
6 v9 v10
I was trying to first see if there was in the column t2.c1 the value 7 .If existed them Insert the new rows . After the insert, delete the row with the value 7, but I really don´t know how to do so..
Can anyone give some ideias how to solve this?
sql
sql-server edited Nov 13 '18 at 23:04
abatishchev
69.8k70263396
asked Nov 13 '18 at 23:02
hi itsmehi itsme
1661517
add a comment |
I tried searching here for a similar solution but didn't see one so I was wondering what is the best way to accomplish the following.
I have a table
Table1 t1
t1.c1 ..
1
2
3
4
5
6
values
and have another table like this
Table2 t2
t2.c1 t2.c2 t2.c3 ..
1 v1 v2
2 v3 v4
3 v5 v6
5 v7 v8
7 v9 v10
I need to insert/update table 2
where it has t2.c1 = 7
so the result would look like this
t2.c1 t2.c2 t2.c3 ..
1 v1 v2
2 v3 v4
3 v5 v6
5 v7 v8
1 v9 v10
2 v9 v10
3 v9 v10
4 v9 v10
5 v9 v10
6 v9 v10
I was trying to first see if there was in the column t2.c1 the value 7 .If existed them Insert the new rows . After the insert, delete the row with the value 7, but I really don´t know how to do so..
Can anyone give some ideias how to solve this?
sql
sql-server edited Nov 13 '18 at 23:04
abatishchev
69.8k70263396
asked Nov 13 '18 at 23:02
hi itsmehi itsme
1661517
add a comment |
I tried searching here for a similar solution but didn't see one so I was wondering what is the best way to accomplish the following.
I have a table
Table1 t1
t1.c1 ..
1
2
3
4
5
6
values
and have another table like this
Table2 t2
t2.c1 t2.c2 t2.c3 ..
1 v1 v2
2 v3 v4
3 v5 v6
5 v7 v8
7 v9 v10
I need to insert/update table 2
where it has t2.c1 = 7
so the result would look like this
t2.c1 t2.c2 t2.c3 ..
1 v1 v2
2 v3 v4
3 v5 v6
5 v7 v8
1 v9 v10
2 v9 v10
3 v9 v10
4 v9 v10
5 v9 v10
6 v9 v10
I was trying to first see if there was in the column t2.c1 the value 7 .If existed them Insert the new rows . After the insert, delete the row with the value 7, but I really don´t know how to do so..
Can anyone give some ideias how to solve this?
sql
sql-server edited Nov 13 '18 at 23:04
abatishchev
69.8k70263396
asked Nov 13 '18 at 23:02
hi itsmehi itsme
1661517
I tried searching here for a similar solution but didn't see one so I was wondering what is the best way to accomplish the following.
I have a table
Table1 t1
t1.c1 ..
1
2
3
4
5
6
values
and have another table like this
Table2 t2
t2.c1 t2.c2 t2.c3 ..
1 v1 v2
2 v3 v4
3 v5 v6
5 v7 v8
7 v9 v10
I need to insert/update table 2
where it has t2.c1 = 7
so the result would look like this
t2.c1 t2.c2 t2.c3 ..
1 v1 v2
2 v3 v4
3 v5 v6
5 v7 v8
1 v9 v10
2 v9 v10
3 v9 v10
4 v9 v10
5 v9 v10
6 v9 v10
I was trying to first see if there was in the column t2.c1 the value 7 .If existed them Insert the new rows . After the insert, delete the row with the value 7, but I really don´t know how to do so..
Can anyone give some ideias how to solve this?
sql
sql-server sql
sql-server edited Nov 13 '18 at 23:04
abatishchev
69.8k70263396
asked Nov 13 '18 at 23:02
hi itsmehi itsme
1661517
edited Nov 13 '18 at 23:04
abatishchev
69.8k70263396
asked Nov 13 '18 at 23:02
hi itsmehi itsme
1661517
edited Nov 13 '18 at 23:04
abatishchev
69.8k70263396
edited Nov 13 '18 at 23:04
abatishchev
69.8k70263396
edited Nov 13 '18 at 23:04
abatishchev
69.8k70263396
69.8k70263396
asked Nov 13 '18 at 23:02
hi itsmehi itsme
1661517
asked Nov 13 '18 at 23:02
hi itsmehi itsme
1661517
asked Nov 13 '18 at 23:02
hi itsmehi itsme
1661517
1661517
add a comment |
add a comment |
2 Answers
2
active
oldest
votes
It looks like you need a cartesian product of tables t2 and t1 for all records where t2.c1 = 7, e.g.:
INSERT INTO Table2
SELECT t1.c1, t2.c2, t2.c3
FROM Table1 t1, Table2 t2
WHERE t2.c1 = 7
Followed by a deletion of those records with t2.c1 = 7, e.g.:
DELETE FROM Table2 t2 WHERE t2.c1 = 7
answered Nov 13 '18 at 23:24
Lee MacLee Mac
4,55531541
add a comment |
First delete the c1=7 then populate it data from table1
DELETE FROM Table2
WHERE c1 = 7;
INSERT INTO Table2 (c1,c2,c3)
SELECT t1.c1,t1.c2,t1.c3
FROM Table1 as t1;
FIDDLE
answered Nov 13 '18 at 23:31
comphoniacomphonia
43928
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
It looks like you need a cartesian product of tables t2 and t1 for all records where t2.c1 = 7, e.g.:
INSERT INTO Table2
SELECT t1.c1, t2.c2, t2.c3
FROM Table1 t1, Table2 t2
WHERE t2.c1 = 7
Followed by a deletion of those records with t2.c1 = 7, e.g.:
DELETE FROM Table2 t2 WHERE t2.c1 = 7
answered Nov 13 '18 at 23:24
Lee MacLee Mac
4,55531541
add a comment |
It looks like you need a cartesian product of tables t2 and t1 for all records where t2.c1 = 7, e.g.:
INSERT INTO Table2
SELECT t1.c1, t2.c2, t2.c3
FROM Table1 t1, Table2 t2
WHERE t2.c1 = 7
Followed by a deletion of those records with t2.c1 = 7, e.g.:
DELETE FROM Table2 t2 WHERE t2.c1 = 7
answered Nov 13 '18 at 23:24
Lee MacLee Mac
4,55531541
add a comment |
It looks like you need a cartesian product of tables t2 and t1 for all records where t2.c1 = 7, e.g.:
INSERT INTO Table2
SELECT t1.c1, t2.c2, t2.c3
FROM Table1 t1, Table2 t2
WHERE t2.c1 = 7
Followed by a deletion of those records with t2.c1 = 7, e.g.:
DELETE FROM Table2 t2 WHERE t2.c1 = 7
answered Nov 13 '18 at 23:24
Lee MacLee Mac
4,55531541
It looks like you need a cartesian product of tables t2 and t1 for all records where t2.c1 = 7, e.g.:
INSERT INTO Table2
SELECT t1.c1, t2.c2, t2.c3
FROM Table1 t1, Table2 t2
WHERE t2.c1 = 7
Followed by a deletion of those records with t2.c1 = 7, e.g.:
DELETE FROM Table2 t2 WHERE t2.c1 = 7
answered Nov 13 '18 at 23:24
Lee MacLee Mac
4,55531541
answered Nov 13 '18 at 23:24
Lee MacLee Mac
4,55531541
answered Nov 13 '18 at 23:24
Lee MacLee Mac
4,55531541
answered Nov 13 '18 at 23:24
Lee MacLee Mac
4,55531541
4,55531541
add a comment |
add a comment |
First delete the c1=7 then populate it data from table1
DELETE FROM Table2
WHERE c1 = 7;
INSERT INTO Table2 (c1,c2,c3)
SELECT t1.c1,t1.c2,t1.c3
FROM Table1 as t1;
FIDDLE
answered Nov 13 '18 at 23:31
comphoniacomphonia
43928
add a comment |
First delete the c1=7 then populate it data from table1
DELETE FROM Table2
WHERE c1 = 7;
INSERT INTO Table2 (c1,c2,c3)
SELECT t1.c1,t1.c2,t1.c3
FROM Table1 as t1;
FIDDLE
answered Nov 13 '18 at 23:31
comphoniacomphonia
43928
add a comment |
First delete the c1=7 then populate it data from table1
DELETE FROM Table2
WHERE c1 = 7;
INSERT INTO Table2 (c1,c2,c3)
SELECT t1.c1,t1.c2,t1.c3
FROM Table1 as t1;
FIDDLE
answered Nov 13 '18 at 23:31
comphoniacomphonia
43928
First delete the c1=7 then populate it data from table1
DELETE FROM Table2
WHERE c1 = 7;
INSERT INTO Table2 (c1,c2,c3)
SELECT t1.c1,t1.c2,t1.c3
FROM Table1 as t1;
FIDDLE
answered Nov 13 '18 at 23:31
comphoniacomphonia
43928
answered Nov 13 '18 at 23:31
comphoniacomphonia
43928
answered Nov 13 '18 at 23:31
comphoniacomphonia
43928
answered Nov 13 '18 at 23:31
comphoniacomphonia
43928
43928
add a comment |
add a comment |
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