string parameterize(array $values) Create query parameter place-holders

string wrapTable(Expression|string $table)

int increment(string $column, int $amount = 1, array $extra = array()) Increment

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string getValue(Expression $expression)

string compileUpdate(Builder $query, array $values)

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mixed avg(string $column) Retrieve the average of the values of a given

$this offset(int $value) Set the "offset" value of the query.