$this lock(bool $value = true) Lock the selected rows in the table.

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bool exists() Determine if any rows exist for the current query.

$this whereRaw(string $sql, mixed $bindings = array(), string $boolean = 'and')

int insertGetId(array $values, string $sequence = null) Insert a new record

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Builder|

string compileInsertGetId(Builder $query, array $values, string

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

int count(string $columns = '*') Retrieve the "count" result of the query