Guys i have to do a insert in to a table when there is no record found. is it possible to do it with only sql query. i tried with case and if .
Just add the condition of your 'IF' to the WHERE of the INSERT for example
INSERT INTO People
(FirstName,LastName,Email)
SELECT #FirstName,#LastName,#Email WHERE #Email NOT IN (SELECT Email FROM People)
If the email address already exists in the table then the SELECT will return no rows and hence no insert will take place
How about:
insert into table1
(select * from table2 where id not in
(select id from table1))
Related
Note: This question is specifically for HSQLDB and Informix.
I want to insert new entry if not exists in the table and I know we can use exists query to insert based on existing entry.
Eg:
INSERT INTO test(column1)
(SELECT DISTINCT 3
FROM test
WHERE NOT EXISTS (SELECT * FROM test WHERE column1 =3));
Problem is: The EXISTS condition is used in combination with a subquery and is considered to be met, if the subquery returns at least one row. Then only we can use in a SELECT, INSERT, UPDATE, or DELETE statement.
This is the CREATE table statement:
CREATE TABLE test(column1 int)
This is the INSERT statement for HSQLDB. It uses the SQL Standard syntax and should work with Informix as well:
INSERT INTO test(column1)
SELECT * FROM (VALUES (3))
WHERE NOT EXISTS (SELECT * FROM test WHERE column1 =3)
This is the SELECT statement to show the rows in the table
SELECT * FROM test
This is the result of the SELECT
COLUMN1
-------
3
1 row(s) in 0 ms
As Informix does not support the VALUES table constructor, you need to create a separate table with only one row, similar to Oracle's DUAL table. You then use this table inside the SELECT.
INSERT INTO test(column1)
SELECT 3 FROM single_row_table
WHERE NOT EXISTS (SELECT * FROM test WHERE column1 =3)
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 try to insert into table with 1 column is (select from table).
I should copy all the id to table1 with 1 column is (select from table )
This not working:
insert into table1 (id,resoucrce,rate) values ((select id from table2),0,0)
I want to do something like that insert all the id from table to another table with default values.
Use insert . . . select:
insert into table1 (id, resource, rate)
select id, 0, 0
from table2;
For copy the content of one table to another table within the same database use this :-
INSERT INTO TARGET_TABLE (`col1`,`col2`) SELECT `col1`,`col2` FROM SOURCE_TABLE;
or your query like that :-
Insert into table1 (id, resource, rate) select id, 0, 0 from table2;
You should focus "values" keyword;
values ((select id from table2),0,0)
When you use values(, , ,) you have to specify value columns. But you're trying to pass both resultset and single values together. That's why you get an error. You should only pass single values...
If its clear for you; you can easily find the correct sql syntax.
I need to select a few columns from a table1. I need to insert only one of these columns as well as some arbitrary hard coded data and insert it into table2 while also getting the original select statement back.
Basically I would like to get the results of my INSERT INTO statement instead of the "(1 row(s) affected)" that I get in SSMS.
Is there a way to do this?
Here is a SQLFiddle:
http://sqlfiddle.com/#!3/e9beb/3
Those records will insert just fine. However, I want the results of my SELECT statement to come back to me so that I can do it all at once without multiple reads or trips. Is this possible?
You can use the OUTPUT clause:
INSERT INTO Table2
OUTPUT inserted.*
SELECT Phrase, 'This is an automatic note by the system', GETDATE(), 1
FROM Table1
Use a batch statement and store the intermediate results in a table variable:
DECLARE #intermediate TABLE (
col1 type,
col2 type,
col3 type
);
INSERT INTO #intermediate VALUES ( ... );
INSERT INTO destinationTable SELECT * FROM #intermediate;
SELECT #intermediate;
If using this from code you can have all of this in a single command-text string.
Have you tried something like this:
INSERT INTO Table1 (
SELECT Phrase, Notes, GetDate, 1
FROM Table2
UNION
SELECT Phrase, 'This is an automatic note by the system', GETDATE(), 1
UNION
)
I have two tables with the same structure. I need to select data from one table and have to store them into the other.
How can I do that?
insert into tablea(id,name) select id,name from tableb;
Since they are the same structure then you can just do
insert into table1 select colum1, column2,... from table2
insert into blacklist
select *
from newblacklist
for uploading any single number
insert into blacklist
select *
from newblacklist
where numbers ='123456'
leave out the values keyword
insert into tbl1
select * from tbl2