diff --git a/bin/db-migrate b/bin/db-migrate
index a854f7b..14b80c9 100755
--- a/bin/db-migrate
+++ b/bin/db-migrate
@@ -7,43 +7,32 @@ use Gt\Database\Migration\Migrator;
  * Database migration iterates over a set of incremental schema changes and
  * stores the currently-migrated schema version within the database itself.
  */
-$autoloadPath = "";
-$currentDir = __DIR__;
-
-// The bin directory may be in multiple places, depending on how this library
-// was installed. Iterate up the tree until either the autoloader or the root
-// directory is found:
-while((empty($autoloadPath)) && $currentDir !== "/") {
-	$currentDir = realpath($currentDir . "/..");
-	if(is_file("$currentDir/autoload.php")) {
-		$autoloadPath = "$currentDir/autoload.php";
-	}
-}
-if(empty($autoloadPath)) {
-	$autoloadPath = realpath(__DIR__ . "/../vendor/autoload.php");
-}
+// The script must be run from the context of a project's root directory.
+$repoBasePath = getcwd();
+$autoloadPath = implode(DIRECTORY_SEPARATOR, [
+	$repoBasePath,
+	"vendor",
+	"autoload.php",
+]);
 require($autoloadPath);
 
-// Repository will always be the parent directory above autoload.php.
-$repoBasePath = dirname(dirname($autoloadPath));
-
 $forced = false;
 if(!empty($argv[1])
 && ($argv[1] === "--force" || $argv[1] === "-f")) {
 	$forced = true;
 }
 
-$config = new Config("$repoBasePath/config.ini", [
-		"database" => [
-			"query_path" => "src/query",
-			"migration_path" => "_migration",
-			"migration_table" => "_migration",
-		]
+// Load the default config supplied by WebEngine, if available:
+$webEngineConfig = new Config("$repoBasePath/vendor/phpgt/webengine/config.default.ini");
+$config = new Config(
+	"$repoBasePath/config.ini",
+	[
+		"database" => $webEngineConfig["database"] ?? [],
 	]
 );
 
 $settings = new Settings(
-	implode("/", [
+	implode(DIRECTORY_SEPARATOR, [
 		$repoBasePath,
 		$config["database"]["query_path"]
 	]),
@@ -55,7 +44,7 @@ $settings = new Settings(
 	$config["database"]["password"]
 );
 
-$migrationPath = implode("/", [
+$migrationPath = implode(DIRECTORY_SEPARATOR, [
 	$repoBasePath,
 	$config["database"]["query_path"],
 	$config["database"]["migration_path"],
@@ -63,7 +52,8 @@ $migrationPath = implode("/", [
 $migrationTable = $config["database"]["migration_table"];
 
 $migrator = new Migrator($settings, $migrationPath, $migrationTable, $forced);
+$migrator->createMigrationTable();
 $migrationCount = $migrator->getMigrationCount();
 $migrationFileList = $migrator->getMigrationFileList();
-$migrator->checkIntegrity($migrationCount, $migrationFileList);
+$migrator->checkIntegrity($migrationFileList, $migrationCount);
 $migrator->performMigration($migrationFileList, $migrationCount);
\ No newline at end of file
diff --git a/src/Client.php b/src/Database.php
similarity index 97%
rename from src/Client.php
rename to src/Database.php
index 2233867..fb721a3 100644
--- a/src/Client.php
+++ b/src/Database.php
@@ -17,7 +17,7 @@
  * connections. If only one database connection is required, a name is not
  * required as the default name will be used.
  */
-class Client {
+class Database {
 	/** @var QueryCollectionFactory[] */
 	protected $queryCollectionFactoryArray;
 	/** @var Driver[] */
@@ -64,11 +64,6 @@ public function update(string $queryName, ...$bindings):int {
 	}
 
 	public function query(string $queryName, ...$bindings):ResultSet {
-		while(isset($bindings[0])
-			&& is_array($bindings[0])) {
-			$bindings = $bindings[0];
-		}
-
 		$queryCollectionName = substr(
 			$queryName,
 			0,
diff --git a/src/Migration/Migrator.php b/src/Migration/Migrator.php
index 15ae638..9d131bf 100644
--- a/src/Migration/Migrator.php
+++ b/src/Migration/Migrator.php
@@ -2,9 +2,10 @@
 namespace Gt\Database\Migration;
 
 use DirectoryIterator;
-use Gt\Database\Client;
+use Gt\Database\Database;
 use Gt\Database\Connection\Settings;
 use Gt\Database\DatabaseException;
+use PDOException;
 use SplFileInfo;
 
 class Migrator {
@@ -33,7 +34,7 @@ public function __construct(
 			$settings = $settings->withoutSchema(); // @codeCoverageIgnore
 		}
 
-		$this->dbClient = new Client($settings);
+		$this->dbClient = new Database($settings);
 
 		if($forced) {
 			$this->deleteAndRecreateSchema();
@@ -72,7 +73,7 @@ public function checkMigrationTableExists():bool {
 
 	public function createMigrationTable():void {
 		$this->dbClient->executeSql(implode("\n", [
-			"create table `{$this->tableName}` (",
+			"create table if not exists `{$this->tableName}` (",
 			"`" . self::COLUMN_QUERY_NUMBER . "` int primary key,",
 			"`" . self::COLUMN_QUERY_HASH . "` varchar(32) not null,",
 			"`" . self::COLUMN_MIGRATED_AT . "` datetime not null )",
@@ -88,7 +89,7 @@ public function getMigrationCount():int {
 			);
 			$row = $result->fetch();
 		}
-		catch(DatabaseException $exception) {
+		catch(PDOException $exception) {
 			return 0;
 		}
 
diff --git a/src/Query/QueryCollection.php b/src/Query/QueryCollection.php
index 001f849..bc591ed 100644
--- a/src/Query/QueryCollection.php
+++ b/src/Query/QueryCollection.php
@@ -40,49 +40,60 @@ public function __call($name, $args) {
 
 	public function query(
 		string $name,
-		iterable $placeholderMap = []
+		...$placeholderMap
 	):ResultSet {
 		$query = $this->queryFactory->create($name);
-
 		return $query->execute($placeholderMap);
 	}
 
 	public function insert(
 		string $name,
-		iterable $placeholderMap = []
+		...$placeholderMap
 	):int {
 		return (int)$this->query(
 			$name,
-			$placeholderMap
+			...$placeholderMap
 		)->lastInsertId();
 	}
 
 	public function fetch(
 		string $name,
-		iterable $placeholderMap = []
+		...$placeholderMap
 	):?Row {
-		return $this->query($name, $placeholderMap)->current();
+		return $this->query(
+			$name,
+			...$placeholderMap
+		)->current();
 	}
 
 	public function fetchAll(
 		string $name,
-		iterable $placeholderMap = []
+		...$placeholderMap
 	):ResultSet {
-		return $this->query($name, $placeholderMap);
+		return $this->query(
+			$name,
+			...$placeholderMap
+		);
 	}
 
 	public function update(
 		string $name,
-		iterable $placeholderMap = []
+		...$placeholderMap
 	):int {
-		return $this->query($name, $placeholderMap)->affectedRows();
+		return $this->query(
+			$name,
+			...$placeholderMap
+		)->affectedRows();
 	}
 
 	public function delete(
 		string $name,
-		iterable $placeholderMap = []
+		...$placeholderMap
 	):int {
-		return $this->query($name, $placeholderMap)->affectedRows();
+		return $this->query(
+			$name,
+			...$placeholderMap
+		)->affectedRows();
 	}
 
 	public function getDirectoryPath():string {
diff --git a/src/Query/SqlQuery.php b/src/Query/SqlQuery.php
index 94d0d0c..747d03c 100644
--- a/src/Query/SqlQuery.php
+++ b/src/Query/SqlQuery.php
@@ -23,6 +23,8 @@ public function getSql(array $bindings = []):string {
 	}
 
 	public function execute(array $bindings = []):ResultSet {
+		$bindings = $this->flattenBindings($bindings);
+
 		$pdo = $this->preparePdo();
 		$sql = $this->getSql($bindings);
 		$statement = $this->prepareStatement($pdo, $sql);
@@ -126,4 +128,32 @@ protected function bindingsEmptyOrNonAssociative(array $bindings):bool {
 			$bindings === []
 			|| array_keys($bindings) === range(0, count($bindings) - 1);
 	}
+
+	/**
+	 * $bindings can either be :
+	 * 1) An array of individual values for binding to the question mark placeholder,
+	 * passed in as variable arguments.
+	 * 2) An array containing one single subarray containing key-value-pairs for binding to
+	 * named placeholders.
+	 *
+	 * Due to the use of variable arguments on the Database and QueryCollection classes,
+	 * key-value-pair bindings may be double or triple nested.
+	 */
+	protected function flattenBindings(array $bindings):array {
+		if(!isset($bindings[0])) {
+			return $bindings;
+		}
+
+		$flatArray = [];
+		foreach($bindings as $i => $b) {
+			while(isset($b[0])
+			&& is_array($b[0])) {
+				$b = $b[0];
+			}
+
+			$flatArray = array_merge($flatArray, $b);
+		}
+
+		return $flatArray;
+	}
 }
diff --git a/test/unit/ClientTest.php b/test/unit/DatabaseTest.php
similarity index 85%
rename from test/unit/ClientTest.php
rename to test/unit/DatabaseTest.php
index b075aeb..f2daa26 100644
--- a/test/unit/ClientTest.php
+++ b/test/unit/DatabaseTest.php
@@ -5,10 +5,10 @@
 use Gt\Database\Query\QueryCollection;
 use PHPUnit\Framework\TestCase;
 
-class ClientTest extends TestCase {
+class DatabaseTest extends TestCase {
 	public function testInterface() {
-		$db = new Client();
-		static::assertInstanceOf(Client::class, $db);
+		$db = new Database();
+		static::assertInstanceOf(Database::class, $db);
 	}
 
 	/**
@@ -21,7 +21,7 @@ public function testQueryCollectionPathExists(string $name, string $path) {
 			Settings::DRIVER_SQLITE,
 			Settings::SCHEMA_IN_MEMORY
 		);
-		$db = new Client($settings);
+		$db = new Database($settings);
 
 		$queryCollection = $db->queryCollection($name);
 		static::assertInstanceOf(QueryCollection::class, $queryCollection);
@@ -39,7 +39,7 @@ public function testQueryCollectionPathNotExists(string $name, string $path) {
 			Settings::DRIVER_SQLITE,
 			Settings::SCHEMA_IN_MEMORY
 		);
-		$db = new Client($settings);
+		$db = new Database($settings);
 		$db->queryCollection($name);
 	}
 }
\ No newline at end of file
diff --git a/test/unit/IntegrationTest.php b/test/unit/IntegrationTest.php
index 19fba2c..05b7bcd 100644
--- a/test/unit/IntegrationTest.php
+++ b/test/unit/IntegrationTest.php
@@ -14,24 +14,24 @@ class IntegrationTest extends TestCase {
 	private $settings;
 	/** @var string */
 	private $queryBase;
-	/** @var Client */
+	/** @var Database */
 	private $db;
 
 	public function setUp() {
 		$this->queryBase = Helper::getTmpDir() . "/query";
 
-		$this->db = new Client($this->settingsSingleton());
+		$this->db = new Database($this->settingsSingleton());
 		$driver = $this->db->getDriver();
 
 		$connection = $driver->getConnection();
-		$output = $connection->exec("CREATE TABLE test_table ( id INTEGER PRIMARY KEY AUTOINCREMENT, name VARCHAR(32), timestamp DATETIME DEFAULT current_timestamp); CREATE UNIQUE INDEX test_table_name_uindex ON test_table (name);");
+		$output = $connection->exec("CREATE TABLE test_table ( id INTEGER PRIMARY KEY AUTOINCREMENT, name VARCHAR(32), number integer, timestamp DATETIME DEFAULT current_timestamp); CREATE UNIQUE INDEX test_table_name_uindex ON test_table (name);");
 
 		if($output === false) {
 			$error = $connection->errorInfo();
 			throw new Exception($error[2]);
 		}
 
-		$insertStatement = $connection->prepare("INSERT INTO test_table (name) VALUES ('one'), ('two'), ('three')");
+		$insertStatement = $connection->prepare("INSERT INTO test_table (name, number) VALUES ('one', 1), ('two', 2), ('three', 3)");
 		$success = $insertStatement->execute();
 		if($success === false) {
 			$error = $connection->errorInfo();
@@ -94,7 +94,7 @@ public function testQuestionMarkParameter() {
 		mkdir($queryCollectionPath, 0775, true);
 		file_put_contents(
 			$getByIdQueryPath,
-			"SELECT id, name FROM test_table WHERE id = ?"
+			"SELECT id, name, number FROM test_table WHERE id = ?"
 		);
 
 		$result2 = $this->db->fetch("exampleCollection/getById", 2);
@@ -107,6 +107,36 @@ public function testQuestionMarkParameter() {
 		static::assertCount(3, $rqr);
 	}
 
+	public function testMultipleParameterUsage() {
+		$queryCollectionPath = $this->queryBase . "/exampleCollection";
+		$getByNameNumberQueryPath = $queryCollectionPath . "/getByNameNumber.sql";
+
+		mkdir($queryCollectionPath, 0775, true);
+		file_put_contents(
+			$getByNameNumberQueryPath,
+			"SELECT id, name, number FROM test_table WHERE name = :name and number = :number"
+		);
+
+		$result1 = $this->db->fetch("exampleCollection/getByNameNumber", [
+			"name" => "one",
+			"number" => 1,
+		]);
+		$result2 = $this->db->fetch("exampleCollection/getByNameNumber", [
+			"name" => "two",
+			"number" => 2,
+		]);
+		$resultNull = $this->db->fetch("exampleCollection/getByNameNumber", [
+			"name" => "three",
+			"number" => 55,
+		]);
+
+		$rqr = $this->db->executeSql("SELECT id, name FROM test_table");
+
+		static::assertEquals(1, $result1->id);
+		static::assertEquals(2, $result2->id);
+		static::assertNull($resultNull);
+	}
+
 	private function settingsSingleton():Settings {
 		if(is_null($this->settings)) {
 			$this->settings = new Settings(
diff --git a/test/unit/Migration/MigratorTest.php b/test/unit/Migration/MigratorTest.php
index 1e2c357..6a25f55 100644
--- a/test/unit/Migration/MigratorTest.php
+++ b/test/unit/Migration/MigratorTest.php
@@ -2,7 +2,7 @@
 namespace Gt\Database\Test\Migration;
 
 use Exception;
-use Gt\Database\Client;
+use Gt\Database\Database;
 use Gt\Database\Connection\Settings;
 use Gt\Database\Migration\MigrationDirectoryNotFoundException;
 use Gt\Database\Migration\MigrationFileNameFormatException;
@@ -34,6 +34,7 @@ public function testMigrationZeroAtStartWithoutTable() {
 		$path = $this->getMigrationDirectory();
 		$settings = $this->createSettings($path);
 		$migrator = new Migrator($settings, $path);
+		$migrator->createMigrationTable();
 		self::assertEquals(0, $migrator->getMigrationCount());
 	}
 
@@ -197,6 +198,7 @@ public function testMigrationCountZeroAtStart() {
 		$path = $this->getMigrationDirectory();
 		$settings = $this->createSettings($path);
 		$migrator = new Migrator($settings, $path);
+		$migrator->createMigrationTable();
 		self::assertEquals(0, $migrator->getMigrationCount());
 	}
 
@@ -304,7 +306,7 @@ public function testPerformMigrationGood(array $fileList):void {
 		}
 		catch(Exception $exception) {}
 
-		$db = new Client($settings);
+		$db = new Database($settings);
 		$result = $db->executeSql("PRAGMA table_info(test);");
 // There should be one more column than the number of files, due to the fact that the first
 // migration creates the table with two columns.
@@ -375,7 +377,7 @@ protected function hashMigrationToDb(
 		}
 
 		$settings = $this->createSettings($path);
-		$db = new Client($settings);
+		$db = new Database($settings);
 		$db->executeSql(implode("\n", [
 			"create table `_migration` (",
 			"`" . Migrator::COLUMN_QUERY_NUMBER . "` int primary key,",
diff --git a/test/unit/Query/QueryCollectionCRUDsTest.php b/test/unit/Query/QueryCollectionCRUDsTest.php
index 1cb1bcd..d6570f7 100644
--- a/test/unit/Query/QueryCollectionCRUDsTest.php
+++ b/test/unit/Query/QueryCollectionCRUDsTest.php
@@ -41,12 +41,16 @@ public function testCreate() {
 		$this->mockQuery
 			->expects(static::once())
 			->method("execute")
-			->with($placeholderVars)
+			->with([$placeholderVars])
 			->willReturn($mockResultSet);
 
 		static::assertEquals(
 			$lastInsertID,
-			$this->queryCollection->insert("something", $placeholderVars));
+			$this->queryCollection->insert(
+				"something",
+				$placeholderVars
+			)
+		);
 	}
 
 	public function testCreateNoParams() {
@@ -78,7 +82,7 @@ public function testRetrieve() {
 		$this->mockQuery
 			->expects(static::once())
 			->method("execute")
-			->with($placeholderVars)
+			->with([$placeholderVars])
 			->willReturn($mockResultSet);
 
 		$actual = $this->queryCollection->fetch("something", $placeholderVars);
@@ -133,7 +137,7 @@ public function testRetrieveAll() {
 		$this->mockQuery
 			->expects(static::once())
 			->method("execute")
-			->with($placeholderVars)
+			->with([$placeholderVars])
 			->willReturn($mockResultSet);
 
 		$actual = $this->queryCollection->fetchAll("something", $placeholderVars);
@@ -188,7 +192,7 @@ public function testUpdate() {
 		$this->mockQuery
 			->expects(static::once())
 			->method("execute")
-			->with($placeholderVars)
+			->with([$placeholderVars])
 			->willReturn($mockResultSet);
 
 		static::assertEquals($recordsUpdatedCount, $this->queryCollection->update("something", $placeholderVars));
@@ -223,7 +227,7 @@ public function testDelete() {
 		$this->mockQuery
 			->expects(static::once())
 			->method("execute")
-			->with($placeholderVars)
+			->with([$placeholderVars])
 			->willReturn($mockResultSet);
 
 		static::assertEquals(
diff --git a/test/unit/Query/QueryCollectionTest.php b/test/unit/Query/QueryCollectionTest.php
index 0a7201e..c753ef9 100644
--- a/test/unit/Query/QueryCollectionTest.php
+++ b/test/unit/Query/QueryCollectionTest.php
@@ -18,9 +18,12 @@ public function testQueryCollectionQuery() {
 		$this->mockQuery
 			->expects(static::once())
 			->method("execute")
-			->with($placeholderVars);
+			->with([$placeholderVars]);
 
-		$resultSet = $this->queryCollection->query("something", $placeholderVars);
+		$resultSet = $this->queryCollection->query(
+			"something",
+			$placeholderVars
+		);
 
 		static::assertInstanceOf(
 			ResultSet::class,
@@ -44,7 +47,7 @@ public function testQueryShorthand() {
 		$this->mockQuery
 			->expects(static::once())
 			->method("execute")
-			->with($placeholderVars);
+			->with([$placeholderVars]);
 
 		static::assertInstanceOf(
 			ResultSet::class,