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The main primal column is often set to automobile-increment when constructing a SQL Server database. The IDENTITY limit is set on for the primary key column to do this. The starting location and step of increase are transferred to the IDENTITY column as parameters. So whenever a new record is added, and the identity insert is ready to OFF, the value of the IDENTITY column is increased by the pre-defined step normally a number. Moreover, the IDENTITY INSERT belongings is ready to ON just for one table in a single session.

In this article, we will discuss the error "Cannot insert explicit value for identity cavalcade in table <tabular array name> when IDENTITY_INSERT is set to OFF" every bit shown below.

Turning the "IDENTITY INSERT OFF", and inserting information without "PRIMARY Key ID" into insert statement

The fault arises when the user has set up "identity_insert" to "OFF". Then tries to insert data into the primary central column of the table explicitly. This can be explained using the example below.

Database and table creation:

Offset, create a database named "appuals".

Creating a database named "appuals".

Create a table named "person" using the following code. Congenital table using a "PRIMARY Fundamental IDENTITY"

CREATE Table person   (      ID INT IDENTITY (1, 1),      first_name VARCHAR(MAX) ,      last_name VARCHAR(MAX)   )

Creating a table named "person"

Syntax for setting "identity_insert off | on":

The "set up identity_insert off | on" will help us resolve this mistake. The correct syntax for this argument is every bit below.

Set IDENTITY_INSERT <database name> . <schema name>. <tabular array name> { OFF | ON }

Whereas the first argument <database name> is the proper noun of the database in which the table is located. The 2d statement <schema name> shows is the schema to which that table belongs whose identity value has to be ready to ON or OFF. The third statement <table proper noun> is the table with the identity column.

There are fundamentally two dissimilar ways of data insertion into the tabular array without error. These are considered as the solution to this error and are discussed below.

Error 1:  Prepare identity_insert OFF

In the get-go instance, we volition insert data into the table with the "IDENTITY INSERT" set to "OFF". And then, if the ID is present into the INSERT statement, yous volition get the error "Cannot insert explicit value for identity column in tabular array 'person' when IDENTITY_INSERT is fix to OFF".

Execute the post-obit code in the query tab.

              set identity_insert person off;  insert into person(ID,first_name,last_name)  values(iii,'Sadia','Majeed'),  (4,'Michel','Ronald')

The output volition exist similar this.

The error arises due to turning the "IDENTITY INSERT OFF", and inserting data with "Chief KEY ID" into insert statement

Solution:

When turning the "IDENTITY INSERT OFF", the"Master Primal ID" MUST NOT be Present into the insert statement

Now execute the following code in the query tab

              fix identity_insert person off;  insert into person(first_name,last_name)  values('Sadia','Majeed'),  ('Michel','Ronald')

Turning the "IDENTITY INSERT OFF", and inserting information without "PRIMARY KEY ID" into insert argument

This volition insert data into the tabular array without an error. Moreover, The Main Primal ID is not required to be inserted past the user, rather it will add unique ID value automatically as seen in the effigy beneath.

Error 2:  Set identity_insert ON

In the 2d example, we will insert data into the tabular array with the "IDENTITY INSERT" set to "ON". And then, if the ID is not nowadays into the INSERT argument, you volition get the error " Msg 545, Level 16, Land 1, Line 17. The explicit value must be specified for identity column in tabular array 'person' either when IDENTITY_INSERT is set to ON or when a replication user is inserting into a NOT FOR REPLICATION identity column".

The mistake arises due to inserting the data into the table with the "IDENTITY INSERT" prepare to "ON". Then Main KEY ID is explicitly required to be inserted by the user

Solution:

When turning the"IDENTITY INSERT ON" the "Chief KEYID" must exist present in the insert statement.

Execute the following lawmaking in the query tab

              set identity_insert person on;  insert into person(ID,first_name,last_name)  values(five,'Jack','black'),  (6,'john','Wicky')

Inserting data into the table with the "IDENTITY INSERT" set to "ON" and with primary key id in the insert argument.

This will insert data into the table without an fault. Thus The PRIMARY Central ID is explicitly required to be inserted past the user. Likewise, it volition not add unique ID value automatically as seen in the figure below.

If you "Set IDENTITY INSERT ON", it will remain on for the whole session. Thus you can add together as many records every bit you desire in one case this has been set. This as well refers only to the session where it is enabled. So if yous open another query tab you demand to turn it ON once again for that query window.

Sam is a First Line Support Engineer in Network Rail. He loves to play effectually & tinker with smartphones. He has a strong background and extensive experience in troubleshooting and configuring Android. He's our go-to guy when information technology comes to smartphones because he always has a trick or 2 up his sleeve. In his spare time, he likes to listen to music & binge-watch Netflix.

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Source: https://appuals.com/how-to-fix-the-error-cannot-insert-explicit-value-for-identity-column-in-table-when-identity_insert-is-set-to-off/

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