Cannot insert explicit value for identity column in table 'table' when IDENTITY_INSERT is set to OFF

Question

I have the below error when I execute the following script. What is the error about, and how it can be resolved?

Insert table(OperationID,OpDescription,Filte         


        

Answer 1

In my CASE I was inserting more character than defined in table.

In My Table column was defined with nvarchar(3) and I was passing more than 3 characters and same ERROR message was coming .

Its not answer but may be in some case problem is similar

Answer 2

you can simply use This statement for example if your table name is School. Before insertion make sure identity_insert is set to ON and after insert query turn identity_insert OFF

SET IDENTITY_INSERT School ON
/*
  insert query
  enter code here
*/
SET IDENTITY_INSERT School OFF

Answer 3

If you are using liquibase to update your SQL Server, you are likely trying to insert a record key into an autoIncrement field. By removing the column from the insert, your script should run.

<changeSet id="CREATE_GROUP_TABLE" >
    <createTable tableName="GROUP_D">
        <column name="GROUP_ID" type="INTEGER" autoIncrement="true">
            <constraints primaryKey="true"/>
        </column>
    </createTable>
</changeSet>

<changeSet id="INSERT_UNKNOWN_GROUP" >
    <insert tableName="GROUP_D">    

        <column name="GROUP_ID" valueNumeric="-1"/>
 ...
    </insert>
</changeSet>

Answer 4

If you're having this issue while using an sql-server with the sequelize-typescript npm make sure to add @AutoIncrement to ID column:

  @PrimaryKey
  @AutoIncrement
  @Column
  id!: number;

Answer 5

everyone comment about SQL, but what hapend in EntityFramework? I spent reading the whole post and no one solved EF. So after a few days a found solution: EF Core in the context to create the model there is an instruction like this: modelBuilder.Entity<Cliente>(entity => { entity.Property(e => e.Id).ValueGeneratedNever();

this produces the error too, solution: you have to change by ValueGeneratedOnAdd() and its works!

Answer 6

The best solution is to use annotation GeneratedValue(strategy = ...), i.e.

@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
@Column ...
private int OperationID;

it says, that this column is generated by database using IDENTITY strategy and you don't need to take care of - database will do it.