string wrap(Expression|string $value, bool $prefixAlias

string getTablePrefix() Get the grammar's table prefix.

$this whereNull(string $column, string $boolean = 'and', bool $not = false)

$this addWhereExistsQuery(Builder $query, string $boolean =

$this join(string $table, string $one, string $operator = null, string $two = null, string $type = 'inner', bool $where = false)

$this groupBy(array $groups) Add a "group by" clause to the query.

Builder|

array getRawBindings() Get the raw array of bindings.

mixed max(string $column) Retrieve the maximum value of a given column

int decrement(string $column, int $amount = 1, array $extra = array()) Decrement