# Class Migration510WorkflowApprovalHistoryTenantId OptimaJet.Workflow.MySQL.Migrations.Migration510WorkflowApprovalHistoryTenantId Namespace: [OptimaJet.Workflow.MySQL.Migrations](https://api.workflowengine.io/mysql/OptimaJet.Workflow.MySQL.Migrations/) ```csharp [Migration(510, TransactionBehavior.Default, null)] [WorkflowEngineMigration("OptimaJet.Workflow.MySQL.Scripts.AddColumn_WorkflowApprovalHistory_TenantId.sql")] [ProductVersion("WorkflowEngine", "22.0.0")] public class Migration510WorkflowApprovalHistoryTenantId : Migration, IMigration ``` ## Type Hierarchy - [MigrationBase](https://github.com/fluentmigrator/fluentmigrator/blob/0374ce832784745ede9b0013fd3f83c6d9bb5a44/src/FluentMigrator/MigrationBase.cs) - [Migration](https://github.com/fluentmigrator/fluentmigrator/blob/0374ce832784745ede9b0013fd3f83c6d9bb5a44/src/FluentMigrator/Migration.cs) - Migration510WorkflowApprovalHistoryTenantId Current type - Implemented interfaces - [IMigration](https://github.com/fluentmigrator/fluentmigrator/blob/0374ce832784745ede9b0013fd3f83c6d9bb5a44/src/FluentMigrator.Abstractions/IMigration.cs) ## Attributes - `FluentMigrator.MigrationAttribute`: Attribute of type FluentMigrator.MigrationAttribute - `OptimaJet.Workflow.Migrator.WorkflowEngineMigrationAttribute`: Attribute of type OptimaJet.Workflow.Migrator.WorkflowEngineMigrationAttribute - `OptimaJet.Workflow.Migrator.ProductVersionAttribute`: Attribute of type OptimaJet.Workflow.Migrator.ProductVersionAttribute ## Methods `public override void Up()` `public override void Down()` [Previous Migration50WorkflowProcessInstancePersistence](https://api.workflowengine.io/mysql/OptimaJet.Workflow.MySQL.Migrations/Migration50WorkflowProcessInstancePersistence/) [Next Migration520WorkflowInboxTenantId](https://api.workflowengine.io/mysql/OptimaJet.Workflow.MySQL.Migrations/Migration520WorkflowInboxTenantId/)