General class for an abstracted "Upsert" (UPDATE or INSERT) query operation. This class can only be used with a table with a single unique index

protected Upsert::preExecute() Preprocesses

The unique or primary key of the table. Type: string File

public Upsert::__construct(Connection $connection, $table, array $options =

public Upsert::key($field) Sets the

public Upsert::execute() Runs the query