/** Creates and returns an instance of the class; this is so that either a native or PDO driver may be returned depending on what is available on the server */
public static function create(): Driver;
// returns a human-friendly name for the driver (for display in installer, for example)
/** Returns a human-friendly name for the driver */
public static function driverName(): string;
// returns the version of the scheme of the opened database; if uninitialized should return 0
/** Returns the version of the schema of the opened database; if uninitialized should return 0
*
* Normally the version is stored under the 'schema_version' key in the arsse_meta table, but another method may be used if appropriate
*/
public function schemaVersion(): int;
// returns the schema set to be used for database set-up
/** Returns the schema set to be used for database set-up */
public static function schemaID(): string;
// return a Transaction object
/** Returns a Transaction object */
public function begin(bool $lock = false): Transaction;
// manually begin a real or synthetic transactions, with real or synthetic nesting
/** Manually begins a real or synthetic transactions, with real or synthetic nesting, and returns its numeric ID
*
* If the database backend does not implement savepoints, IDs must still be tracked as if it does
*/
public function savepointCreate(): int;
// manually commit either the latest or all pending nested transactions
/** Manually commits either the latest or a specified nested transaction */
public function savepointRelease(int $index = null): bool;
// manually rollback either the latest or all pending nested transactions
/** Manually rolls back either the latest or a specified nested transaction */
public function savepointUndo(int $index = null): bool;
// attempt to perform an in-place upgrade of the database schema; this may be a no-op which always throws an exception
/** Performs an in-place upgrade of the database schema
*
* The driver may choose not to implement in-place upgrading, in which case an exception should be thrown
*/
public function schemaUpdate(int $to): bool;
// execute one or more unsanitized SQL queries and return an indication of success
/** Executes one or more queries without parameters, returning only an indication of success */
public function exec(string $query): bool;
// perform a single unsanitized query and return a result set
/** Executes a single query without parameters, and returns a result set */
public function query(string $query): Result;
// ready a prepared statement for later execution
/** Readies a prepared statement for later execution */
public function prepare(string $query, ...$paramType): Statement;
/** Readies a prepared statement for later execution */
public function prepareArray(string $query, array $paramTypes): Statement;
// report whether the database character set is correct/acceptable
/** Reports whether the database character set is correct/acceptable
*
* The backend must be able to accept and provide UTF-8 text; information may be stored in any encoding capable of representing the entire range of Unicode
*/
public function charsetAcceptable(): bool;
// return an implementation-dependent form of a reference SQL function or operator
/** Returns an implementation-dependent form of a reference SQL function or operator
*
* The tokens the implementation must understand are:
*
* - "greatest": the GREATEST function implemented by PostgreSQL and MySQL
* - "nocase": the name of a general-purpose case-insensitive collation sequence
