The Table-Creation-Tool of the "DatabaseExplorer" offers an easy way of creating simple tables over the UI.
For Example:
You can enter the catalog, schema and table-name.
The columns can be expanded as desired by clicking on the plus button. (Empty column-names will be ignored)
If The database has a separate indicator for autoincrement then you can set one column by a radio-button, otherwise you have the choice over the column-Type.
Also multiple "Primary-Key" columns and "Not-Null" column settings can bet set easily by checkboxes.
The size-field will only be considered if the column-type needs it.
Before you click "Ok" to execute the automatically created creation-script, you can show the SQL to check if everything is ok or to copy it for manual adjustments.