Questions tagged [identity]

Creates an identity column in a table. This property is used with the CREATE TABLE and ALTER TABLE Transact-SQL statements.

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Insert into table with column same values as auto increment column ( computed column )

Say I have a table with "column1" (Primary Key, Auto Increment) and "column2". How can insert into the table with column2 will have the same values as column1 which is auto increment column?
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SSMS: Restart the values on a IDENTITY field [duplicate]

I am starting to use SSMS to manage a database and I am having a problem I would appreciate some help with. I have a table that was created with CREATE TABLE [dbo].[Machine]( [Machine_id] [...
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1answer
51 views

How do you retrieve the identity value of a row inserted from the OUTPUT of an UPDATE statement?

How do you retrieve the identity value for an inserted row when that row is inserted from the OUTPUT of an UPDATE statement? Neither @@IDENTITY nor SCOPE_IDENTITY() appears to be set properly. ...
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2answers
47 views

Stored Procedure - Reseed Identity

I have a bunch of LU tables that have values added and deleted all the time. Therefore, I figured writing a quick stored procedure would serve me well and then can call the stored procedure on another ...
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1answer
239 views

Why am I receiving the identity insert error even after explicitly setting IDENTITY_INSERT ON and using a column list? [closed]

My code: SET IDENTITY_INSERT SomeCoolDatabase.BoringOldSchema.TableWithIdentityColumn ON INSERT INTO SomeCoolDatabase.BoringOldSchema.TableWithIdentityColumn SELECT ColumnWithIdentity, ...
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Converting SalesForce IDs for Performance Reasons

I'm writing code for a data warehouse that extracts information from SalesForce. The format of the SalesForce IDs is like so: 001n000000UELLJAA5 Where each digit is a base-62 value denoted by: a-z ...
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After switchover OIM app to standby, getting ORA-01033: ORACLE initialization or shutdown in progress

I have the exact same issue as described here JDBC Connection on Current Primary Database After Switchover: ORA-01033 encountered We have OIM 11gr2PS3 app and 2 node rac DB cluster. When I switchover ...
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2answers
412 views

Is “SET IDENTITY_INSERT” required to insert arbitrary GUID into [uniqueidentifier] column?

SQL Server 2016 and 2017, Standard Edition I need to insert raw data (from another table) into a table that has two uniqueidentifier columns. Does this require that I use SET IDENTITY_INSERT Carrier ...
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0answers
35 views

Windowed IDENTITY column definition? [duplicate]

Is it possible to create a windowed identity column that automatically initializes and increments in SQL Server 2017 or later? I would like the conceptual functionality of SelectedSubsetId below. ...
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2answers
343 views

Serializable range deadlocks

Help required on an inherited deadlock problem! The code given below appears to have been written some time back, in an attempt to address contention issues around the assigning of new ID values on ...
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1answer
144 views

Function SCOPE_IDENTITY not found

When I call SCOPE_IDENTITY in Sybase, I get [Error] Script lines: 1-6 -------------------------- Function 'SCOPE_IDENTITY' not found. If this is a SQLJ function or SQL function, use sp_help to ...
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1answer
272 views

PostgreSQL How to DEFAULT Partitioned Identity Column?

PostgreSQL 11 What is the best way to generate default values for identity columns on partition tables. E.g CREATE TABLE data.log ( id BIGINT GENERATED ALWAYS AS IDENTITY ...
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1answer
50 views

What are the origins of the Identity Column? [closed]

Who were the first creators of the Identity column? What problem were those creators originally trying to solve? Is there a story behind it?
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Identity column re-seed: when it is necessary?

During one of the last lessons at university (I'm a student), lecturer asked us to develop a database (MySQL Server if it matters) and tiny client app that would consume the database as data source. ...
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Identity column changing on its own?

I have a situation where a client is using software that writes to a SQL table. The program has been running fine with no issues prior to today. Today, they began receiving errors inserting NULL ...
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1answer
61 views

Populate Identity column with sequential numbers restarting count on change of key field

I am attempting to populate an Identity column with sequential numbers but I want the count to start over when the value of a key field changes. Example data and desired ID column results: Month_ ...
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1answer
300 views

How to increment identity without add a row and get the skipped value?

I'm trying to preserve value in identity column in manner to be added later. The value should be used in implicit foreign key when there is no constraint. For example: I have this table: Create ...
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1answer
26 views

Database Entity Design for Enumeration Table

I have an enumeration of ~10 values - they are Char such as A through K. These are all unique. They are used for two purposes - an application is forced to select acceptable values and also there is a ...
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1answer
181 views

How can I insert without changing the identity seed? [duplicate]

I will add the records in table A to table B. The tables are the same. However, table B is an actively transactional table. When doing the operation, the record in the tableB will continue to be added ...
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1answer
40 views

SQL Server Replication changing a tables ID numbers

I am using a merge replication setup for our ERP system and I encountered this problem: While creating a new entry on a table and with the last ID number given was 25, then new entry got the ID ...
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1answer
125 views

Clustered Index Maintenance vs. Nonclustered Index Maintenance

There is a plethora of information available detailing why an IDENTITY field should be use as both the primary key and clustered index of a table for most situations; yet I'm having difficulty ...
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1answer
319 views

HSQLDB get next value for IDENTITY column

I'm looking for a query to get the next IDENTITY value of a HSQL table. Like if I were to insert a new row into a table that has an auto id column, what value would that turn into. I did some ...
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2answers
53 views

SQL Server - Copying a key from one table to another

In a trigger, I have created a table using SELECT * INTO. I have done that in a specific way, in order to create the table without also creating the identity column that exists in it (let's name this ...
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2answers
1k views

Availability Group, asynchronous mode, manual/forced failover - handling identity overlap

We have a two replica 2017 Standard Availability Group in asynchronous mode. With a failover (manual/forced, since can't do automatic), we have the potential for overlapping/reused identity values if ...
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1answer
475 views

How to add a PostgreSQL 10 identity column to an existing table with rows?

I have a table with some rows and I try adding an identity column using the command: ALTER TABLE sourceTable ADD COLUMN ogc_fid int GENERATED BY DEFAULT AS IDENTITY; The ...
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1answer
163 views

Restore all IDENTITY seeds (out of sync since database restore)

We have recently done a full restore on a database from a backup (schema & data). When trying to insert new rows we are getting the "Cannot insert duplicate key in object" error message, it is ...
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1answer
2k views

How to add a PostgreSQL 10 identity column to an existing table?

I'm reading about the new Postgres 10 identity column, and saw how it is used to replace SERIAL columns when CREATE TABLE. Is it also possible to add an identity column to an existing table? For ...
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2answers
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Can IDENTITY COLUMNS generate UUIDs?

I'm just wondering if either the spec of the implementation (PostgreSQL) provides for generating identity columns from UUIds or the like. Is there an alternative to, CREATE TABLE f ( id uuid ...
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2answers
4k views

How can I change an existing type from “bigint” to “bigserial”?

I have a PostgreSQL table with the following structure: I simply need to change the TYPE of prove_identity_id from bigint to bigserial. I read the docs but wasn't able to understand how to legally ...
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2answers
987 views

PostgreSQL 10 Identity Column gets “null value” when inserting multiple rows with default keyword

I recently upgraded from PostgreSQL 9.5 to PostgreSQL 10. One of the nifty features in PostgreSQL 10 is the new identity column type, an alternative to PostgreSQL' serial pseudo-type. Official ...
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1answer
5k views

How to fix all duplicate key value violates unique constraint

I have a Postgres database that I created with a Django application. When I transferred it over, it never reindexed anything and it gives me errors trying to do this. It seems as if there are lots of ...
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2answers
542 views

Custom Sequences with SQL Server

What is the best method to generate a Custom Auto-Generated Sequence with SQL Server? Here is my requirement: My application is hosted on 10 independent servers which are not interconnected. Each ...
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1answer
26 views

Existing data to new table, how to set up the PK & Identity

I am moving an Access app to SQL Server. I have confirmed the data in the existing PK is unique so I want to copy it into the new PK Identity field. The field is currently set as IDENTITY(1,1). I ...
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1answer
1k views

How to get information about the sequence behind the new Identity Column in Postgres 10? (GENERATED { ALWAYS | BY DEFAULT } AS IDENTITY)

Postgres 10 brings an implementation of the SQL standard GENERATED { ALWAYS | BY DEFAULT } AS IDENTITY feature, loosely known as identity column. This feature supplants Postgres’ own SERIAL pseudo-...
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1answer
164 views

identity value way off in a restored database

I have a table with a identity primary key column. Its last value is 5228491220 using IDENT_CURRENT. I make a full backup of the database, restore it on a second server. (We backup and restore daily ...
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1answer
384 views

SQL GUID or Identity in the Cloud

Follow up from my previous question SQL Server Identity Column in the Cloud: Are there any general guidelines? Should a person use Clustered Index Identity or GUID in the cloud for SQL Server 2016? ...
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2answers
334 views

Problems with having SQL Server Identity Column in the Cloud

Our company is utilizing Identity(1,1) clustered primary index in SQL Server 2016 Enterprise, and will eventually deploy into the Cloud (Amazon AWS, Google Cloud). Is there any issues utilizing ...
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3answers
957 views

Configured identity seed starting value on database level

Is there an option in sql server to configure the default starting value(seed) of an identity column on a database level . I want that by default, every table that created with an identity column ,...
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1answer
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Can an Oracle IDENTITY column be nullable?

I want to create an ID column that automatically generates unique ID numbers by default. Users won't be inserting rows via INSERT statements, rather, they'll create rows using an out-of-box ...
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3answers
14k views

How to copy migrate data to new tables with identity column, while preserving FK relationship?

I want to migrate data from one database to another. The table schemas are exactly the same: CREATE TABLE Customers( [Id] INT NOT NULL PRIMARY KEY IDENTITY, (some other columns ......) ); ...
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1answer
55 views

Adding an identity field to be the new cluster of a large table - how do I get the “right” order?

I have a very large table (88m rows, nearly 300GB in size) that has a poorly planned clustered index. I want to add a BIGINT identity field, and make it the new clustered index (having the desirable ...
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1answer
510 views

How to replace a single table with Identity Primary Key column from a database backup?

I need to restore a table from a backup. My understanding is the only way to get a single table back into the database is to copy it into a temporary table. Then drop the old table and rename the new ...
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3answers
831 views

How to reduce identity values to avoid integer overflow?

I have some leaf tables (no FK towards them) with a few hundreds of thousands records that are used to synchronize some external data using Entity Framework ORM. This involves some DELETEs followed by ...
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1answer
118 views

Search all table, find PrimaryKeys with Id = int/bigint and enable Identity, autoincrement

I have a large list of tables and due to change in middleware platform, the middleware is no longer creating the auto-increment on Add New Record at the app layer, as a result, I need to do this in ...
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2answers
36 views

Does anyone ever use database sequences that count down from 2^64-1?

Does anyone ever use database sequences that count down from 2^64-1, rather than up from 1, for assigning ids to rows? The motivation for doing this would be to ensure that any application consuming ...
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1answer
273 views

Is there a way to catch a dbcc checkident command

A colleague of mine noticed incorrect ids generated for inserted items. Most probable cause: some script issues a command like the following: dbcc checkident('dbo.table', reseed, 1) I have thought ...
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1answer
268 views

Create trigger to ignore user input for Identity Columns

Using the this table definition CREATE TABLE testtable ( id NUMBER GENERATED AS IDENTITY, desc VARCHAR2(30) ); I would like to create a trigger before inserts and updates to ...
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1answer
1k views

Restoring database backup makes identity column start at 1 again

I created a backup of our database in SSMS 2012, using Tasks -> Backup as a Full Backup, including all data. When I restore this backup on another server (2012 as well), all identity columns are ...
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6answers
3k views

What can be the downside of always having a single integer column as primary key?

Within one Web application I am working on, all database operations are abstracted using some generic repositories defined over Entity Framework ORM. However, in order to have a simple design for the ...
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2answers
86 views

Generate INSERT list but only for non-nullable columns

I am currently using SSMS 2016 as client and have an Azure SQL database (also 2008 r2). But I am looking for a way to create a custom template to have an insert statement prepared with only the ...