My table has 10 fields: field1, field2,..., field10
Now suppose i only want to insert values into first two columns, and put '' on the rest.
I'm currently using
insert into table1 values
(100,200,'','','','','','','','','','')
I wonder if there is a better way to avoid ,'','','','' ?
Thanks for advice!
Yes, just specify the fields you want to add like this:
insert into table1 (field1, field2) VALUES (100,200)
In this case field1 will insert 100, and field2 will insert 200.
The other fields in your table will be null, so you need to make sure that is allowed.
EDIT:
in the comments, #andreas is correct - any field you don't specify will be given it's default value (which may be null)
Related
i'm trying to make sqlite query that can insert multiple values , here's my query that i try :
insert into table1(idy_table1,idx_table1)
values ('1', //specified value insert to idy_table1
(select id_table2 from table2)) //insert value from select id_table2
i'm having some trouble, it just only insert one value,
and my question is how to make a proper query? so i can make it work.
The VALUES clause always adds one row.
(Except when you're using multiple tuples, but this does not work with queries.)
The easiest way to add multiple rows from a query is to use the SELECT form of the INSERT statement:
INSERT INTO Table1(idy_table1, idx_table1)
SELECT '1', id_table2 FROM table2;
I'm new to SQL, (using SQL 2008 R2) and I am having trouble inserting multiple rows into a single column.
I have a table named Data and this is what I am trying
INSERT INTO Data ( Col1 ) VALUES
('Hello', 'World')
That code was taken from this question, but it, like many other examples I have found on the web uses 2 columns, I just want to use 1. What am I doing wrong?
Thanks
To insert into only one column, use only one piece of data:
INSERT INTO Data ( Col1 ) VALUES
('Hello World');
Alternatively, to insert multiple records, separate the inserts:
INSERT INTO Data ( Col1 ) VALUES
('Hello'),
('World');
to insert values for a particular column with other columns remain same:-
INSERT INTO `table_name`(col1,col2,col3)
VALUES (1,'val1',0),(1,'val2',0),(1,'val3',0)
I believe this should work for inserting multiple rows:
INSERT INTO Data ( Col1 ) VALUES
('Hello'), ('World'),...
Another way to do this is with union:
INSERT INTO Data ( Col1 )
select 'hello'
union
select 'world'
If your DBMS supports the notation, you need a separate set of parentheses for each row:
INSERT INTO Data(Col1) VALUES ('Hello'), ('World');
The cross-referenced question shows examples for inserting into two columns.
Alternatively, every SQL DBMS supports the notation using separate statements, one for each row to be inserted:
INSERT INTO Data (Col1) VALUES ('Hello');
INSERT INTO Data (Col1) VALUES ('World');
INSERT INTO Data ( Col1 ) VALUES ('Hello'), ('World')
In that code you are inserting two column value.
You can try this
INSERT INTO Data ( Col1 ) VALUES ('Hello'),
INSERT INTO Data ( Col1 ) VALUES ('World')
Kindly ensure, the other columns are not constrained to accept Not null values, hence while creating columns in table just ignore "Not Null" syntax. eg
Create Table Table_Name(
col1 DataType,
col2 DataType);
You can then insert multiple row values in any of the columns you want to.
For instance:
Insert Into TableName(columnname)
values
(x),
(y),
(z);
and so on…
Hope this helps.
INSERT INTO hr.employees (location_id) VALUE (1000) WHERE first_name LIKE '%D%';
let me know if there is any problem in this statement.
I am trying to come up with a DB2 SQL statement that does the following, but I am not sure
if this is allowed.
I know that it's possible to insert into tableA ( ... ) Values (?,?,?,...)
and then assign values to those parameters ?.
Is it possible to pre-defined the value of one of the parameter?
For example, one of the column that I am trying to insert is the ID column and I would like to make it something like select max(id) + 1 from tableA.
This is what I am trying to get to - is this syntax possible in db2?
insert into tableA (ID, Text1, Text2) VALUES (select max(id)+1 from tableA, ?, ?)
Anyways - any help would be appreciated!
thanks!!
this should works :
insert into tableA values((select max(id)+1 from tableA),'text1','text')
It sounds like you are wanting a primary key as an index on your table.
db2 alter table tableA add primary key (id)
This will create a column in your table which will auto-increment when you add a new record.
Source ( http://www.ibm.com/developerworks/data/library/techarticle/dm-0401melnyk/ )
You can also try using the OVERRIDING USER VALUE parameter:
INSERT INTO TableA
OVERRIDING USER VALUE
SELECT 0,Text1, Text2
From TableB
I need to create a table that basically keeps a list of indices only. Therefore I've created a table with just one, auto-incremented column called 'id'. However, I can't seem to implicitly add auto-incremented values to this table.
I know that usually when you have such a column in a table (with more than just this column) you can do:
INSERT INTO TABLE (col1, col2 ...) VALUES (val1, val2 ...)
And if you don't specify the auto-incremented column, it would automatically get a value. However, things like:
INSERT INTO TABLE () VALUES ()
INSERT INTO TABLE
INSERT INTO TABLE ()
etc. all produce an error on my single-columned table. Can anyone offer a solution?
Thanks.
p.s. I'm using Sqlite, in case it matters.
Try this
INSERT INTO dbo.Table DEFAULT VALUES
See this answer:
Previous answer
Try the following:
INSERT INTO YOUR_TABLE(YOUR_ID) VALUES (NULL);
One question about how to t-sql program the following query:
Table 1
I insert 400.000 mobilephonenumbers in a table with two columns. The number to insert and identity id.
Table 2
The second table is called SendList. It is a list with 3columns, a identity id, a List id, and a phonenumberid.
Table 3
Is called ListInfo and contains PK list id. and info about the list.
My question is how should I using T-sql:
Insert large list with phonenumbers to table 1, insert the generated id from the insert of phonenum. in table1, to table 2. AND in a optimized way. It cant take long time, that is my problem.
Greatly appreciated if someone could guide me on this one.
Thanks
Sebastian
What version of SQL Server are you using? If you are using 2008 you can use the OUTPUT clause to insert multiple records and output all the identity records to a table variable. Then you can use this to insert to the child tables.
DECLARE #MyTableVar table(MyID int);
INSERT MyTabLe (field1, field2)
OUTPUT INSERTED.MyID
INTO #MyTableVar
select Field1, Field2 from MyOtherTable where field3 = 'test'
--Display the result set of the table variable.
Insert MyChildTable (myID,field1, field2)
Select MyID, test, getdate() from #MyTableVar
I've not tried this directly with a bulk insert, but you could always bulkinsert to a staging table and then use the processs, described above. Inserting groups of records is much much faster than one at a time.