diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f237e0f..02f4884 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -9,7 +9,7 @@ jobs:
     strategy:
       matrix:
         php: [ 8.3, 8.2 ]
-        database: [ mysql, mariadb, pgsql, sqlite, sqlsrv ] # TODO[L11]: singlestore, firebird
+        database: [ mysql, mariadb, pgsql, sqlite, sqlsrv, oracle ] # TODO[L11]: singlestore, firebird
         release: [ stable, lowest ]
         include:
           - php: 8.3
diff --git a/.github/workflows/static-analysis.yml b/.github/workflows/static-analysis.yml
index 4533305..2bd2132 100644
--- a/.github/workflows/static-analysis.yml
+++ b/.github/workflows/static-analysis.yml
@@ -22,10 +22,7 @@ jobs:
       - name: Install dependencies
         run: |
           docker compose -f docker-compose.yml -f docker-compose.ci.yml run --rm php${{ matrix.php }} \
-            composer require --dev --ignore-platform-req=ext-oci8 yajra/laravel-oci8
-          docker compose -f docker-compose.yml -f docker-compose.ci.yml run --rm php${{ matrix.php }} \
-            composer update --no-interaction --no-progress --prefer-dist --prefer-${{ matrix.release }} \
-            --ignore-platform-req=ext-oci8
+            composer update --no-interaction --no-progress --prefer-dist --prefer-${{ matrix.release }}
       - name: Analyse code
         run: |
           docker compose -f docker-compose.yml -f docker-compose.ci.yml run --rm php${{ matrix.php }} \
diff --git a/composer.json b/composer.json
index e3d161a..c2fa02e 100644
--- a/composer.json
+++ b/composer.json
@@ -15,7 +15,8 @@
     "require-dev": {
         "orchestra/testbench": "^9.0",
         "phpstan/phpstan": "^1.10",
-        "phpunit/phpunit": "^10.5"
+        "phpunit/phpunit": "^10.5",
+        "yajra/laravel-oci8": "^11.0"
     },
     "autoload": {
         "psr-4": {
diff --git a/docker-compose.yml b/docker-compose.yml
index 0eb88d4..d074857 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -56,6 +56,17 @@ services:
       retries: 10
     networks:
       - test
+  oracle:
+    image: 'gvenzl/oracle-xe:latest'
+    environment:
+      ORACLE_PASSWORD: password
+    healthcheck:
+      test: healthcheck.sh
+      interval: 5s
+      timeout: 3s
+      retries: 10
+    networks:
+      - test
   singlestore:
     image: 'ghcr.io/singlestore-labs/singlestoredb-dev:latest'
     environment:
diff --git a/src/Query/Grammars/Traits/CompilesOracleExpressions.php b/src/Query/Grammars/Traits/CompilesOracleExpressions.php
index c1719c5..84362b7 100644
--- a/src/Query/Grammars/Traits/CompilesOracleExpressions.php
+++ b/src/Query/Grammars/Traits/CompilesOracleExpressions.php
@@ -4,9 +4,6 @@
 
 use Illuminate\Database\Query\Builder;
 
-/**
- * @codeCoverageIgnore
- */
 trait CompilesOracleExpressions
 {
     use CompilesExpressions;
diff --git a/tests/EloquentTest.php b/tests/EloquentTest.php
index fbab1e7..a18cd38 100644
--- a/tests/EloquentTest.php
+++ b/tests/EloquentTest.php
@@ -21,14 +21,15 @@ public function testWithExpression()
 
     public function testWithRecursiveExpression()
     {
-        $query = User::where('id', 3)
+        $query = User::select('id', 'parent_id', 'followers', 'created_at', 'updated_at')
+            ->where('id', 3)
             ->unionAll(
-                User::select('users.*')
+                User::select('users.id', 'users.parent_id', 'users.followers', 'users.created_at', 'users.updated_at')
                     ->join('ancestors', 'ancestors.parent_id', '=', 'users.id')
             );
 
         $users = User::from('ancestors')
-            ->withRecursiveExpression('ancestors', $query)
+            ->withRecursiveExpression('ancestors', $query, ['id', 'parent_id', 'followers', 'created_at', 'updated_at'])
             ->orderBy('id')
             ->get();
 
@@ -96,7 +97,7 @@ public function testInsertUsing()
 
     public function testUpdate()
     {
-        if (in_array($this->connection, ['mariadb', 'firebird'])) {
+        if (in_array($this->connection, ['mariadb', 'oracle', 'firebird'])) {
             $this->markTestSkipped();
         }
 
@@ -111,7 +112,7 @@ public function testUpdate()
 
     public function testUpdateWithJoin()
     {
-        if (in_array($this->connection, ['mariadb', 'firebird'])) {
+        if (in_array($this->connection, ['mariadb', 'oracle', 'firebird'])) {
             $this->markTestSkipped();
         }
 
@@ -126,7 +127,7 @@ public function testUpdateWithJoin()
 
     public function testUpdateWithLimit()
     {
-        if (in_array($this->connection, ['mariadb', 'sqlsrv', 'singlestore', 'firebird'])) {
+        if (in_array($this->connection, ['mariadb', 'sqlsrv', 'oracle', 'singlestore', 'firebird'])) {
             $this->markTestSkipped();
         }
 
@@ -143,7 +144,7 @@ public function testUpdateWithLimit()
 
     public function testDelete()
     {
-        if (in_array($this->connection, ['mariadb', 'firebird'])) {
+        if (in_array($this->connection, ['mariadb', 'oracle', 'firebird'])) {
             $this->markTestSkipped();
         }
 
@@ -156,7 +157,7 @@ public function testDelete()
 
     public function testDeleteWithJoin()
     {
-        if (in_array($this->connection, ['mariadb', 'firebird'])) {
+        if (in_array($this->connection, ['mariadb', 'oracle', 'firebird'])) {
             $this->markTestSkipped();
         }
 
@@ -170,7 +171,7 @@ public function testDeleteWithJoin()
 
     public function testDeleteWithLimit()
     {
-        if (in_array($this->connection, ['mariadb', 'sqlsrv', 'firebird'])) {
+        if (in_array($this->connection, ['mariadb', 'sqlsrv', 'oracle', 'firebird'])) {
             $this->markTestSkipped();
         }
 
diff --git a/tests/QueryTest.php b/tests/QueryTest.php
index d37825a..c6350c5 100644
--- a/tests/QueryTest.php
+++ b/tests/QueryTest.php
@@ -9,6 +9,15 @@
 
 class QueryTest extends TestCase
 {
+    protected function setUp(): void
+    {
+        parent::setUp();
+
+        if ($this->connection === 'oracle') {
+            $this->markTestSkipped();
+        }
+    }
+
     public function testWithExpression()
     {
         $posts = function (BaseBuilder $query) {
diff --git a/tests/TestCase.php b/tests/TestCase.php
index 700c833..1f53d65 100644
--- a/tests/TestCase.php
+++ b/tests/TestCase.php
@@ -11,6 +11,7 @@
 use Staudenmeir\LaravelCte\Tests\Models\Post;
 use Staudenmeir\LaravelCte\Tests\Models\User;
 use SingleStore\Laravel\SingleStoreProvider;
+use Yajra\Oci8\Oci8ServiceProvider;
 
 abstract class TestCase extends Base
 {
@@ -77,7 +78,7 @@ protected function getEnvironmentSetUp($app)
 
     protected function getPackageProviders($app)
     {
-        return []; // TODO[L11]
-        return [SingleStoreProvider::class, FirebirdServiceProvider::class];
+        return [Oci8ServiceProvider::class]; // TODO[L11]
+        return [Oci8ServiceProvider::class, SingleStoreProvider::class, FirebirdServiceProvider::class];
     }
 }
diff --git a/tests/config/database.php b/tests/config/database.php
index effcbce..8527212 100644
--- a/tests/config/database.php
+++ b/tests/config/database.php
@@ -58,6 +58,24 @@
         'prefix_indexes' => true,
         'encrypt' => 'no',
     ],
+    'oracle' => [
+        'driver' => 'oracle',
+        'tns' => '',
+        'host' => 'oracle',
+        'port' => '1521',
+        'database' => 'XE',
+        'service_name' => '',
+        'username' => 'system',
+        'password' => 'password',
+        'charset' => 'AL32UTF8',
+        'prefix' => '',
+        'prefix_schema' => '',
+        'edition' => 'ora$base',
+        'server_version' => '21c',
+        'load_balance' => 'yes',
+        'max_name_len' => 128,
+        'dynamic' => [],
+    ],
     'singlestore' => [
         'driver' => 'singlestore',
         'host' => 'singlestore',