How to get the last inserted ID in SQL Server 2012? It shows null for me.
One way would be
insert into your_table (...)
output INSERTED.ID
values (...)
Assuming table is
create table test
(
id int IDENTITY(1,1) PRIMARY KEY
, testData varchar(100) NOT NULL
)
this works
INSERT INTO dbo.Test (testData) VALUES ('test')
SELECT ##IDENTITY AS ID
as does this (better answer)
INSERT INTO dbo.Test (testData) VALUES ('test')
SELECT SCOPE_IDENTITY() AS ID
I don't have enough information to know why yours does not work. It is probably in the table structure? I would need more information to answer this.
We can use ##ROWCOUNT with SCOPE_IDENTITY() to get latest inserted ID in table as following:
INSERT INTO dbo.MyTable (...) VALUES (...)
SELECT ID
FROM [dbo].MyTable
WHERE ##ROWCOUNT > 0 AND ID = SCOPE_IDENTITY()
Related
In my head this sounds improbable, but I'd like to know if I can do it:
INSERT INTO MyTable (Name)
VALUES ('First'),
('Second'),
('Third'),
('Fourth'),
('Fifth');
SELECT INSERTED Name, ID FROM TheAboveQuery
Where ID is an auto-indexed column?
Just to clarify, I want to select ONLY the newly inserted rows.
Starting with SQL Server 2008 you can use OUTPUT clause with INSERT statement
DECLARE #T TABLE (ID INT, Name NVARCHAR(100))
INSERT INTO MyTable (Name)
OUTPUT INSERTED.ID, INSERTED.Name INTO #T
VALUES
('First'),
('Second'),
('Third'),
('Fourth'),
('Fifth');
SELECT Name, ID FROM #T;
UPDATE: if table have no triggers
INSERT INTO MyTable (Name)
OUTPUT INSERTED.ID, INSERTED.Name
VALUES
('First'),
('Second'),
('Third'),
('Fourth'),
('Fifth');
Sure, you can use an IDENTITY property on your ID field, and create the CLUSTERED INDEX on it
ONLINE DEMO
create table MyTable ( ID int identity(1,1),
[Name] varchar(64),
constraint [PK_MyTable] primary key clustered (ID asc) on [Primary]
)
--suppose this data already existed...
INSERT INTO MyTable (Name)
VALUES
('First'),
('Second'),
('Third'),
('Fourth'),
('Fifth');
--now we insert some more... and then only return these rows
INSERT INTO MyTable (Name)
VALUES
('Sixth'),
('Seventh')
select top (##ROWCOUNT)
ID,
Name
from MyTable
order by ID desc
##ROWCOUNT returns the number of rows affected by the last statement executed. You can always see this in the messages tab of SQL Server Management Studio. Thus, we are getting the number of rows inserted and combining it with TOP which limits the rows returned in a query to the specified number of rows (or percentage if you use [PERCENT]). It is important that you use ORDER BY when using TOP otherwise your results aren't guaranteed to be the same
From my previous edited answer...
If you are trying to see what values were inserted, then I assume you are inserting them a different way and this is usually handled with an OUTPUT clause, TRIGGER if you are trying to do something with these records after the insert, etc... more information would be needed.
I'm beginner in SQL Server and in my database I have two tables:
Table 1 with an id type bigint identity(1, 1)
Table 2 with the columns name and table1ID.
I want to insert (into table 1) and generate an id value. Then I will insert that id value into table1ID of table 2.
i change table to this and write this query:
insert into Interconnect_Traffic_Analysis_MAIN (Code_Op,Name_Op,Shomare_Tel,Duration,table1ID>>table1 id must save in this column)
select t7,t8,t9,t10 from Interconnect_Traffic_Analysis_Temp;
But how can I implement that?
Try this:
-- declare a variable to hold your newly created IDENTITY value
DECLARE #Identity BIGINT
-- insert your values into the first table
INSERT INTO dbo.Table1(list-of-columns)
VALUES(list-of-values);
-- get the newly generated IDENTITY value into your variable
SET #Identity = SCOPE_IDENTITY();
-- use that variable in your second INSERT
INSERT INTO dbo.Table2(table1Id)
VALUES(#Identity)
Update:
With your updated question with the INSERT statement, use this code to include the #Identity value:
INSERT INTO dbo.Interconnect_Traffic_Analysis_MAIN(Code_Op, Name_Op, Shomare_Tel, Duration, table1ID)
SELECT
t7, t8, t9, t10, #Identity
FROM
Interconnect_Traffic_Analysis_Temp;
You can try this:
insert into TableOne values ('abc');
insert into tableTwo values ((select SCOPE_IDENTITY()));
select SCOPE_IDENTITY() goes give you the last inserted id.
See this SQL fiddle
I have a table with two columns:
CREATE TABLE MyTable(
Id int IDENTITY(1,1) NOT NULL,
Name nvarchar(100) NOT NULL);
I want to duplicate the data using SELECT INSERT statement:
INSERT INTO MyTable (Name)
SELECT Name FROM MyTable
and here is the trickey part - I want to retrieve a mapping table between the original identity and the new identity:
DECLARE #idsMap TABLE (OriginalId int, NewId int)
I know I suppose to use the OUTPUT clause, but for some reason it doesn't work:
INSERT INTO MyTable (Name)
OUTPUT t.Id, INSERTED.Id INTO #idsMap (OriginalId, NewId)
SELECT Name FROM MyTable t
-- Returns error The multi-part identifier "t.Id" could not be bound.
Related questions:
can SQL insert using select return multiple identities?
Possible to insert with a Table Parameter, and also retrieve identity values?
It can be achieved using MERGE INTO and OUTPUT:
MERGE INTO MyTable AS tgt
USING MyTable AS src ON 1=0 --Never match
WHEN NOT MATCHED THEN
INSERT (Name)
VALUES (src.Name)
OUTPUT
src.Id,
inserted.Id
INTO #idsMap;
How about just adding a new column to MyTable? You can keep it around as long as you need to analysis or whatever. I have to say it seems a bit off to me to create a copy of the table but that is up to you to decide.
Something like this might work for you.
alter table MyTable
add OldID int null;
INSERT INTO MyTable (Name, OldID)
SELECT Name , Id
FROM MyTable t
select * from MyTable
I have a Code (int) in my table, the ID is set to identity. How can I set a default value for my code to be filled by the same value az ID? I mean Identity.
You could use an after insert trigger:
create table TestTable (id int identity, col1 int)
go
create trigger TestTrigger on TestTable after insert
as begin
update TestTable
set col1 = id
where col1 is null
and id in (select id from inserted)
end
go
Test code:
insert TestTable default values
insert TestTable (col1) values (666)
insert TestTable default values
select * from TestTable
In general, I try to stay clear of triggers. In the long run using a stored procedure for insert is much more maintainable:
create procedure dbo.InsertTestRow(
#col1 int)
as
insert TestTable (col1) values (#col1)
if #col1 is null
begin
update TestTable
set col1 = id
where id = SCOPE_IDENTITY()
end
If it always has the same value - why don't you just drop that field. Otherwise it can be maintained with triggers (BEFORE INSERT one).
I'm looking for something in the
default value! If it is null it should
be filled with the same value as id
but if it is provided with some value,
it should keep that value
You could solve the issue by using coalesce in your queries instead.
create table T (ID int identity, ID2 int)
insert into T values (default)
insert into T values (null)
insert into T values (78)
select
ID,
coalesce(ID2, ID) as ID2
from T
Result
ID ID2
-- ---
1 1
2 2
3 78
Assuming your table's ID is an Identity column, you could consider using a constraint:
ALTER TABLE MyTable
ADD CONSTRAINT MyTableCodeDefault
DEFAULT IDENT_CURRENT('MyTable') FOR Code
This works for these use cases:
INSERT INTO MyTable DEFAULT VALUES
INSERT INTO MyTable ({columns NOT including 'Code'})
VALUES ({value list matching insert columns})
INSERT INTO MyTable (Code) VALUES (666)
INSERT INTO MyTable (Code) SELECT 8 UNION SELECT 13 UNION SELECT 21
But it does not work for bulk inserts:
INSERT INTO MyTable ({columns NOT including 'Code'})
SELECT {value list matching insert columns}
UNION
SELECT {value list matching insert columns}
UNION
SELECT {value list matching insert columns}
This restriction may seem onerous, but in my practical experience, it's rarely a problem. Most of the use cases I've encountered that need a default value involve user/UI 'convenience': don't force the user to pick a value if they don't want to.
OTOH, rarely do I encounter bulk insert situations where it's impractical to specify the value for the columns you're targeting.
You could use computed column, like this:
if object_id('TempTable') is not null drop table TempTable
create table TempTable (Id int identity(1,1), Code as Id)
insert into TempTable
default values
insert into TempTable
default values
insert into TempTable
default values
select * from TempTable
Of course if you have other columns, then you dont need default values:
if object_id('TempTable') is not null drop table TempTable
create table TempTable (Id int identity(1,1), Code as Id, SomethingElse int)
insert into TempTable (SomethingElse)
select 10 union all
select 11 union all
select 12
select * from TempTable
But, like zerkms said - why do you need two columns that are same?
If the field is an Identity field in SQL Server, the database engine will take care of its value. What we normally do is to read the record back (after inserting) to get to the generated Id.
EDIT: It sounds like you are trying to "override" the identity? If so, before you insert, run:
SET IDENTITY_INSERT [tableName] ON
You'll have to be careful not to insert a value that already exists. This can get tricky, though. So maybe consider removing the identity property altogether, and managing the default values yourself?
I'm developing a project using VB.NET connected to SQL Server database
and in this project i need to get the value of column called "ID" after inserting a record to
the database immediately.
thanx.
CREATE TABLE dbo.SomeTable (
ID int IDENTITY
,[NAME] varchar(50)
);
go
INSERT INTO dbo.SomeTable ([Name])
SELECT 'Joe' UNION
SELECT 'Jim' UNION
SELECT 'JIll'
;
SELECT ident_current('dbo.SomeTable') AS [LastID_1]
,##IDENTITY AS [LastID_2]
,scope_identity() AS [LastID_3]
;
USES:
ident_current ('TableName') for a specific table, not limited by scope and session
##IDENTITY last ID in current session
scope_identity() last ID in current session, current scope
Have a look at SCOPE_IDENTITY (Transact-SQL)
INSERT
INTO [News]
(
LanguageID,
Title,
Short,
[Full],
Published,
AllowComments,
CreatedOn
)
VALUES
(
#LanguageID,
#Title,
#Short,
#Full,
#Published,
#AllowComments,
#CreatedOn
)
set #NewsID=##identity
SCOPE_IDENTITY, IDENT_CURRENT, and ##IDENTITY are similar functions because they return values that are inserted into identity columns.
TABLE
EMPID ( AUTOINCREAMENT)
NAME VARCHAR(50)
INSERT INTO TABLE ( NAME) VALUES ('RAMKUMAR')
SELECT ##IDENTITY
use ##identity
returns the autoincreament value
You can create temp table variable and create a column called StuId.
--Student table creation
CREATE TABLE [dbo].[StuTable](
[StuId] [int] IDENTITY(1,1) NOT NULL,
[StuName] [nvarchar](50) NOT NULL,
[DOB] [date] NULL
)
DECLARE #TempTable TABLE(StuId INT)
INSERT INTO [dbo].[StuTable]([StuName]
,[DOB])
OUTPUT inserted.StuId INTO #TempTable
VALUES ('Peter', '1979-01-01')
SELECT StuId FROM #TempTable --Get the auto increment Id