diff --git a/part-07-database/app/backend_pre_start.py b/part-07-database/app/backend_pre_start.py
index 3363a41..0bbd681 100644
--- a/part-07-database/app/backend_pre_start.py
+++ b/part-07-database/app/backend_pre_start.py
@@ -20,8 +20,11 @@
 def init() -> None:
     try:
         db = SessionLocal()
-        # Try to create session to check if DB is awake
-        db.execute("SELECT 1")
+        is_awake = db.is_active
+        if is_awake:
+            print("Session is awake")
+        else:
+            print("Session not awake")
     except Exception as e:
         logger.error(e)
         raise e
diff --git a/part-08-structure-and-versioning/app/backend_pre_start.py b/part-08-structure-and-versioning/app/backend_pre_start.py
index 3363a41..0bbd681 100644
--- a/part-08-structure-and-versioning/app/backend_pre_start.py
+++ b/part-08-structure-and-versioning/app/backend_pre_start.py
@@ -20,8 +20,11 @@
 def init() -> None:
     try:
         db = SessionLocal()
-        # Try to create session to check if DB is awake
-        db.execute("SELECT 1")
+        is_awake = db.is_active
+        if is_awake:
+            print("Session is awake")
+        else:
+            print("Session not awake")
     except Exception as e:
         logger.error(e)
         raise e
diff --git a/part-09-async/app/backend_pre_start.py b/part-09-async/app/backend_pre_start.py
index 3363a41..0bbd681 100644
--- a/part-09-async/app/backend_pre_start.py
+++ b/part-09-async/app/backend_pre_start.py
@@ -20,8 +20,11 @@
 def init() -> None:
     try:
         db = SessionLocal()
-        # Try to create session to check if DB is awake
-        db.execute("SELECT 1")
+        is_awake = db.is_active
+        if is_awake:
+            print("Session is awake")
+        else:
+            print("Session not awake")
     except Exception as e:
         logger.error(e)
         raise e
diff --git a/part-10-jwt-auth/app/backend_pre_start.py b/part-10-jwt-auth/app/backend_pre_start.py
index 3363a41..0bbd681 100644
--- a/part-10-jwt-auth/app/backend_pre_start.py
+++ b/part-10-jwt-auth/app/backend_pre_start.py
@@ -20,8 +20,11 @@
 def init() -> None:
     try:
         db = SessionLocal()
-        # Try to create session to check if DB is awake
-        db.execute("SELECT 1")
+        is_awake = db.is_active
+        if is_awake:
+            print("Session is awake")
+        else:
+            print("Session not awake")
     except Exception as e:
         logger.error(e)
         raise e
diff --git a/part-11-dependency-injection/app/backend_pre_start.py b/part-11-dependency-injection/app/backend_pre_start.py
index 3363a41..0bbd681 100644
--- a/part-11-dependency-injection/app/backend_pre_start.py
+++ b/part-11-dependency-injection/app/backend_pre_start.py
@@ -20,8 +20,11 @@
 def init() -> None:
     try:
         db = SessionLocal()
-        # Try to create session to check if DB is awake
-        db.execute("SELECT 1")
+        is_awake = db.is_active
+        if is_awake:
+            print("Session is awake")
+        else:
+            print("Session not awake")
     except Exception as e:
         logger.error(e)
         raise e
diff --git a/part-12-react-frontend/backend/app/backend_pre_start.py b/part-12-react-frontend/backend/app/backend_pre_start.py
index 3363a41..0bbd681 100644
--- a/part-12-react-frontend/backend/app/backend_pre_start.py
+++ b/part-12-react-frontend/backend/app/backend_pre_start.py
@@ -20,8 +20,11 @@
 def init() -> None:
     try:
         db = SessionLocal()
-        # Try to create session to check if DB is awake
-        db.execute("SELECT 1")
+        is_awake = db.is_active
+        if is_awake:
+            print("Session is awake")
+        else:
+            print("Session not awake")
     except Exception as e:
         logger.error(e)
         raise e
diff --git a/part-13-docker-deployment/backend/app/app/backend_pre_start.py b/part-13-docker-deployment/backend/app/app/backend_pre_start.py
index 3363a41..0bbd681 100644
--- a/part-13-docker-deployment/backend/app/app/backend_pre_start.py
+++ b/part-13-docker-deployment/backend/app/app/backend_pre_start.py
@@ -20,8 +20,11 @@
 def init() -> None:
     try:
         db = SessionLocal()
-        # Try to create session to check if DB is awake
-        db.execute("SELECT 1")
+        is_awake = db.is_active
+        if is_awake:
+            print("Session is awake")
+        else:
+            print("Session not awake")
     except Exception as e:
         logger.error(e)
         raise e
diff --git a/part-14-send-email-in-background/backend/app/app/backend_pre_start.py b/part-14-send-email-in-background/backend/app/app/backend_pre_start.py
index 3363a41..0bbd681 100644
--- a/part-14-send-email-in-background/backend/app/app/backend_pre_start.py
+++ b/part-14-send-email-in-background/backend/app/app/backend_pre_start.py
@@ -20,8 +20,11 @@
 def init() -> None:
     try:
         db = SessionLocal()
-        # Try to create session to check if DB is awake
-        db.execute("SELECT 1")
+        is_awake = db.is_active
+        if is_awake:
+            print("Session is awake")
+        else:
+            print("Session not awake")
     except Exception as e:
         logger.error(e)
         raise e