https://learn.microsoft.com/en-us/dotnet/api/microsoft.sqlserver.dts.tasks.bulkinserttask.idtsbulkinserttask.tablelock?view=sqlserver-2019
IDTSBulkInsertTask.TableLock Property (Microsoft.SqlServer.Dts.Tasks.BulkInsertTask) | Microsoft...
Gets or sets a value that indicates whether the table is locked during the bulk insert operation.
dts taskspropertymicrosoftsqlserver