I need your help with sql server 2005. I want to insert a running clock in any table where it will auto increment. So once set this clock cannot be changed. Just one row with two columns Time, Current time. Time column is just a ref. Can be an int as well but current time should auto increment every second. I need it to be a clock inside sql.

Any help is sincerely appreciated.

icon_5000

Did you get answer to your query? I am in a similar scenario, although in my case, the size is many times more – about 200 million records. Please let me know if you figured out what is taking so long. Our process has been running for more than 6 hours.

Also, what would happen if I stop this running operation – note that this drop constraint statement itself is NOT explicitly enclosed in a BEGIN TRAN – END TRAN block.

Thanks,
Manoj Deshpande.

Msg 8967, Level 16, State 218, Line 1
An internal error occurred in DBCC that prevented further processing. Contact Customer Support Services.
Msg 8944, Level 16, State 13, Line 1
Table error: Object ID 0, index ID -1, partition ID 0, alloc unit ID 262144 (type Unknown), page (1:135), row 57. Test (ColumnOffsets <= (nextRec – pRec)) failed. Values are 293 and 37.
Msg 7985, Level 16, State 2, Line 1
System table pre-checks: Object ID 4. Could not read and latch page (1:135) with latch type SH. Check statement terminated due to unrepairable error.

when i run a select * from table1 it gives me a error

”
Msg 0, Level 11, State 0, Line 0
A severe error occurred on the current command. The results, if any, should be discarded.
Msg 0, Level 20, State 0, Line 0
A severe error occurred on the current command. The results, if any, should be discarded.
”

But when i select the first column like select A from table1 it displays the first column. Also count gives the total count of the rows.
But when u do Select * or apart from first column ‘A’ any column i get the above error.

Whats been done with no success….
DBCC checktable …same above error
DBCC Checkdb …same above error
Started DB in emergency mode and tried
Created a new db and tried to copy the data but could not copy…may be i was doing something wrong. But corrupt table schema got copied but not the data.
deleted the primary and also droped the index.
Possibly a index corrupt issue. When i try sysindexes i get the same error same.

Since the one column can be read …i m pretty optimistic that the data could be recovered

Any help will be sincerely appreciated.

Is it going to reorganise all the data in the table because of me dropping the Primary Key? I assume this is what it is doing as I can’t think of any reason why else it would take so long to just drop a constraint.

exec sp_help ‘table_name’

if you want to know the constraint name just violate the primary key by try to insert the same values in table.

Which shows the constraint name.

like this

Msg 2627, Level 14, State 1, Line 1
Violation of PRIMARY KEY constraint ‘pk_addcons’. Cannot insert duplicate key in object ‘dbo.ADDCONS’.
The statement has been terminated.

here pk_addcons is the constraint name..

I used Sung’s method of finding the name of the primary key, and it worked like a charm.

Thanks again.

But I m unable to insert the default value.

Anshu Verma

works in Oracle, along with “…DROP CONSTRAINT”

I had a table named tblPagos with primary unique key column “idPago”
Due to some problems, it was impossible at least to me to make an update using a join from other table, so I decide to rename the table to “tblPagosOld” and create a new tblPagos, so, now I have two tables: tblPagos and tblPagosOld

I made an insert in the new tblPagos by selecting data from tblPagosOld and doing an inner join from a master table

After that I drop the table tblPagosOld
Now I want to create a primary unique key for column “idPago” from the new tblPagos but SQL Server tells me that there’s a duplicate PK_tblPagos and tell me the object id (the old one) and I can’t find where is the reference to that PK

I was taking a look at the database diagram, also I was trying to make a new primary key using a different name, in addition I was looking for it on sys.indexes, sys.contraints, also I was trying to run the script by using “alter table tblPagos” and executing the drop

There’s some option? there’s something I’m not seeing? any help it could be appreciate

I am sure that a PK constraint is existing on the table.

Know the primary key name from sp_help. Primary key constraint name would be different than column name.

Regards,
Pinal Dave

Thank You For Replying

As You Right that primary key name is different than pk_id but my database not having any foreign key and only one id field that’s name is pk_id.

my database table having following structure
Table Name: Table_Test

Fields Name Datatype

pk_id int
name varchar(50)
address varchar(50)

where I set pk_id is as primary key.

So, Help me to drop the primary key using query.

This is only sample table that I am trying to remove but this same process I have to done in many problem.

So,
Please Reply Me.

Ankit Gusani

The error indecates that the primary key name is different than pk_id. Before dropping primary key constraint you will have to drop all foreign key constraints also.

Regards,
Pinal Dave

I have to remove primary key from multiple table.

so I use a following query for it:

ALTER TABLE table_name
DROP CONSTRAINT pk_id;

it is a give a error like:
Msg 3728, Level 16, State 1, Line 1
‘pk_id’ is not a constraint.
Msg 3727, Level 16, State 0, Line 1
Could not drop constraint. See previous errors.

please helm me for this error.

I am using a SQL SERVER 2005 express Edition.

Ankit Gusani.

This post guided me to a right direction.

Microsoft usually tries their best to ease the pain of development or maintenance for developers or IT professionals by introducing easier way to do stuff.

But for dropping primary key constraint, IMHO, MySQL wins.