I have table A and table B, same schemas.
I want to insert certain rows from table A into table B. For example, insert into table B all rows from table A with column 'abc' > 10.
Couldn't figure out how to do it
Something like this
INSERT INTO B (supplier_id, supplier_name)
SELECT supplier_id, supplier_name FROM A
WHERE abc > 10;
Make sense?
You can use the following notation:
BEGIN TRAN
INSERT INTO ExistingTable (Col1, Col2...)
SELECT Something1, Something2... FROM Table1 WHERE ...
--ROLLBACK/COMMIT
At first blush, I'd say something like:
Insert Into B
(Select * from A
Where abc > 10)
Related
I need to insert a row into one table and use this row's id to insert two more rows into a different table within one transaction. I've tried this
begin;
insert into table default values returning table.id as C;
insert into table1(table1_id, column1) values (C, 1);
insert into table1(table1_id, column1) values (C, 2);
commit;
But it doesn't work. How can I fix it?
updated
You need a CTE, and you don't need a begin/commit to do it in one transaction:
WITH inserted AS (
INSERT INTO ... RETURNING id
)
INSERT INTO other_table (id)
SELECT id
FROM inserted;
Edit:
To insert two rows into a single table using that id, you could do that two ways:
two separate INSERT statements, one in the CTE and one in the "main" part
a single INSERT which joins on a list of values; a row will be inserted for each of those values.
With these tables as the setup:
CREATE TEMP TABLE t1 (id INTEGER);
CREATE TEMP TABLE t2 (id INTEGER, t TEXT);
Method 1:
WITH inserted1 AS (
INSERT INTO t1
SELECT 9
RETURNING id
), inserted2 AS (
INSERT INTO t2
SELECT id, 'some val'
FROM inserted1
RETURNING id
)
INSERT INTO t2
SELECT id, 'other val'
FROM inserted1
Method 2:
WITH inserted AS (
INSERT INTO t1
SELECT 4
RETURNING id
)
INSERT INTO t2
SELECT id, v
FROM inserted
CROSS JOIN (
VALUES
('val1'),
('val2')
) vals(v)
If you run either, then check t2, you'll see it will contain the expected values.
Please find the below query:
insert into table1(columnName)values('stack2');
insert into table_2 values(SCOPE_IDENTITY(),'val1','val2');
for my intention I have to select a table to select columns from dependent on the column-value of an already given table.
First I thought about a CASE construct, if this is possible with sqlite.
SELECT * FROM
CASE IF myTable.column1 = "value1" THEN (SELECT * FROM table1 WHERE ...)
ELSE IF myTable.column1 = "value2" THEN (SELECT * FROM table2 WHERE ...)
END;
I am new to SQL. What construct would be the most concise (not ugly) solution and if I cannot have it in sqlite, what RDBM would be the best fit?
Thanks
Here is a proposal for associating a value from one of two tables for each entry in mytable. I.e. this is making the assumption that mytable does not only contain a single entry for choosing the secondary table.
For details on what this means, see "MCVE" at the end of this answer.
If you want to switch between two secondary tables, based on a single entry in main table, see at the very end of this answer.
Details:
a hardcoded "value1"/"value2" as column1 added on the fly to the result from secondary tables
joining by the faked colummn1 and a secondary join-key, assumption here id
a union all to make a single table from both secondary tables (including the fake column1)
select *
from mytable
left join
(select 'value1' as column1, * from table1
UNION ALL
select 'value2' as column1, * from table2)
using(id, column1);
Output (for the MCVE provided below, "a-f" from table1, "A-Z" from table2):
value1|1|a
value2|2|B
value1|3|c
value1|4|d
value2|5|E
value2|6|F
MCVE:
PRAGMA foreign_keys=OFF;
BEGIN TRANSACTION;
CREATE TABLE mytable (column1 varchar(10), id int);
INSERT INTO mytable VALUES('value1',1);
INSERT INTO mytable VALUES('value2',2);
INSERT INTO mytable VALUES('value1',3);
INSERT INTO mytable VALUES('value1',4);
INSERT INTO mytable VALUES('value2',5);
INSERT INTO mytable VALUES('value2',6);
CREATE TABLE table2 (value varchar(2), id int);
INSERT INTO table2 VALUES('F',6);
INSERT INTO table2 VALUES('E',5);
INSERT INTO table2 VALUES('D',4);
INSERT INTO table2 VALUES('C',3);
INSERT INTO table2 VALUES('B',2);
INSERT INTO table2 VALUES('A',1);
CREATE TABLE table1 (value varchar(2), id int);
INSERT INTO table1 VALUES('a',1);
INSERT INTO table1 VALUES('b',2);
INSERT INTO table1 VALUES('c',3);
INSERT INTO table1 VALUES('d',4);
INSERT INTO table1 VALUES('e',5);
INSERT INTO table1 VALUES('f',6);
COMMIT;
For selecting between two tables based on a single entry in main table (in this case "mytable2":
select * from table1 where (select column1 from mytable2) = 'value1'
union all
select * from table2 where (select column1 from mytable2) = 'value2';
Output (with mytable2 only containing 'value1'):
a|1
b|2
c|3
d|4
e|5
f|6
Does Big Query support operations like "REPLACE INSERT" or something related to that?
If I run a query like this twice:
INSERT INTO table(column1) VALUES(1)
It'll create a duplicated row, is it possible to insert a row only if a column with the same value does not exist?
Thanks!
Below should make it
#standardSQL
INSERT INTO yourTable(column1)
SELECT value FROM (SELECT 1 AS value)
LEFT JOIN yourTable
ON column1 = value
WHERE column1 IS NULL
Does this work for you?
INSERT INTO table(column1)
WITH s AS (SELECT 1 src)
SELECT src FROM s WHERE NOT EXISTS (
SELECT * FROM table t WHERE t.column1 = s.src
)
I am trying to create a SQL query where I need to insert a new sets of records based but 1 column is needed from required table.
E.g.,
TABLE_1
=======
ID,
A,
B
TABLE2
======
ID,
C,
D
Each ID are identical ID column.
I have a query of this format:
INSERT INTO TABLE_1 (ID, A, B) VALUES (???, "Yes", "What")
WHERE ID IN (SELECT ID FROM TABLE_2 WHERE ID > 10)
This, clearly doesn't work.
My question: how do I add the ID value from Table 2 into Table 1 and make it runnable? This is a query that must run on Oracle 11g.
Try this query:
INSERT INTO MyTable(ID, A, B)
SELECT ID,'YES','What' FROM TABLE_2 WHERE ID > 10
I have Table A with 10 columns and Table B has 3 columns only.I want insert Table B data into Table A with and remaining 7 fields with empty.
How can I do that?
If your table columns has default values then you have to use:-
insert into tableA select col1,col2,col3,'','','','','','','' from tableB;
for inserting empty values in remaining 7 columns.
use
insert into table A(coulmn1,column2,coulmn3) select * from B;
Insert into tableA(col1, col2, col3) select col1, col2, col3 from tableB
where col1=condition;
Tested in oracle