[tag=","] [tag=NNS] [tag=TO] [□] □
[tag=","] [tag=NNS] [tag=TO] [□=□] □
[tag=","] [tag=NNS] [tag=TO] [□ & □] □
For example , you can add borders to widgets , editors to a table cell , define key bindings , create custom input methods , implement models to hold large datasets efficiently , override the default focus traversal , drag and drop , cut and paste , and so on . If you have a hash index on a MEMORY table that has a high degree of key duplication ( many index entries containing the same value ) , updates to the table that affect key values and all deletes are significantly slower .