# Default SQL functions

`ModularORM` supports standard SQL functions. For example, if you need a `TIMESTAMP` column that will automatically update its value when modified, you can do it like this:

```typescript
@Table()
@NamedTable('ur_table_name')
export class TestTable extends Module {
    
    @Column({
        type: ColumnType.TIMESTAMP,
        notNull: true,
        onUpdate: SqlFunctions.CURRENT_TIMESTAMP
    })
    public date : Date = new Date()
    
}
```

Thus, when records are updated, the affected columns will automatically update the date to the current time.

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