查找最后插入的记录MS SQL SERVER

Question

I applied 12Lac Insert command in Single table , but after some time query terminated , How can I find Last Inserted Record
a)Table don't have created Date column
b)Can not apply order by clause because primary key values are manually generated
c)Last() is not buit in fumction in mssql.

Or any way to find last executed query
There will be some way but not able to figure out

Table contain only primary key constrain no other constrain

Answer 1

As per comment request here a quick and dirty manual solution, assuming you've got the list of INSERT statements (or the according data) in the same sequence as the issued INSERT s. For this example I assume 1 million records.

INSERT ... VALUES (1, ...)
...
INSERT ... VALUES (250000, ...)
...
INSERT ... VALUES (500000, ...)
...
INSERT ... VALUES (750000, ...)
...
INSERT ... VALUES (1000000, ...)

You just have to find the last PK, that has been inserted. Luckily in this case there is one. So you start doing a manual binary search in the table issuing

SELECT pk FROM myTable WHERE pk = 500000

If you get a row back, you know it got so far. Continue checking with pk = 750000 . Then again, if it is there with pk = 875000 . If 750000 is not there, then the INSERT s must have stopped earlier. Then check for pk = 675000 . This process stops in this case after 20 steps.

It's just plain manual divide and conquer.

Answer 2

There is a way. Unfortunately you have to do this in advance so it helps you. So if you have, by any chance the PRIMARY KEYS you inserted, still at hand go ahead and delete all rows that have those keys:

DELETE FROM tableName WHERE ID IN (id1, id2, ...., idn)

Then you enable Change Data Capture for your database (have the db already selected):

EXEC sys.sp_cdc_enable_db;

Now you also need to enable Change Data Capture for that table, in an example that I've tried I could just run:

EXEC sys.sp_cdc_enable_table @source_schema = N'dbo', @source_name = N'tableName', @role_name = null

Now you are almost setup! You need to look into your system services and verify that SQL Server Agent is running for your DBMS, if it does not capturing will not happen.

Now when you insert something into your table you can select data changes from a new table called [cdc].[dbo_tableName_CT] :

SELECT [__$start_lsn]
      ,[__$end_lsn]
      ,[__$seqval]
      ,[__$operation]
      ,[__$update_mask]
      ,[ID]
      ,[Value]
  FROM [cdc].[dbo_tableName_CT]
GO

An example output of this looks like this:

you can order by __$seqval that should give you the order in which the rows were inserted.

NOTE: this feature seems not to be present in SQL Server Express