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

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

string getValue(Expression $expression)

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

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array prepareBindingsForUpdate(array $bindings, array $values) Prepare

mixed __call(string $method, array $parameters) Dynamically handle calls

mixed getValue() Get the value of the expression.

$this whereExists(Closure $callback, string $boolean = 'and', bool $not = false)