first

.idea/.gitignore

+# Default ignored files
+/shelf/
+/workspace.xml

.idea/inspectionProfiles/Project_Default.xml

+<component name="InspectionProjectProfileManager">
+  <profile version="1.0">
+    <option name="myName" value="Project Default" />
+    <inspection_tool class="PyPep8NamingInspection" enabled="true" level="WEAK WARNING" enabled_by_default="true">
+      <option name="ignoredErrors">
+        <list>
+          <option value="N806" />
+          <option value="N801" />
+        </list>
+      </option>
+    </inspection_tool>
+    <inspection_tool class="PyUnresolvedReferencesInspection" enabled="true" level="WARNING" enabled_by_default="true">
+      <option name="ignoredIdentifiers">
+        <list>
+          <option value="main.employee_details" />
+          <option value="object.subordinates" />
+          <option value="list.cities" />
+        </list>
+      </option>
+    </inspection_tool>
+  </profile>
+</component>
\ No newline at end of file

.idea/inspectionProfiles/profiles_settings.xml

+<component name="InspectionProjectProfileManager">
+  <settings>
+    <option name="USE_PROJECT_PROFILE" value="false" />
+    <version value="1.0" />
+  </settings>
+</component>
\ No newline at end of file

.idea/misc.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectRootManager" version="2" project-jdk-name="C:\Users\ramya.r\Anaconda3" project-jdk-type="Python SDK" />
+</project>
\ No newline at end of file

.idea/modules.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/timestamp.iml" filepath="$PROJECT_DIR$/.idea/timestamp.iml" />
+    </modules>
+  </component>
+</project>
\ No newline at end of file

.idea/timestamp.iml

+<?xml version="1.0" encoding="UTF-8"?>
+<module type="PYTHON_MODULE" version="4">
+  <component name="NewModuleRootManager">
+    <content url="file://$MODULE_DIR$" />
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>
\ No newline at end of file

main.py

+from sqlalchemy import create_engine,  Column, Integer, DateTime, select
+from sqlalchemy.orm import sessionmaker, declarative_base
+from datetime import timedelta, datetime
+import pandas as pd
+
+engine = create_engine('postgresql://interns:interns%40123@192.168.0.220:5432/internsb2')
+
+Session = sessionmaker(bind=engine)
+
+Base = declarative_base()
+
+
+class MyData(Base):
+    __tablename__ = 'my_data'
+    id = Column("id", Integer, primary_key=True)
+    start_time = Column("start_time", DateTime(timezone=True))
+    buffer_time = Column("buffer_time", Integer)
+    end_time = Column("end_time", DateTime(timezone=True))
+
+
+Base.metadata.create_all(engine)
+
+data = [
+    {'start_time': datetime(2023, 4, 1, 10, 0, 0), 'buffer_time': 30},
+    {'start_time': datetime(2023, 4, 2, 14, 0, 0), 'buffer_time': 45},
+    {'start_time': datetime(2023, 4, 3, 9, 0, 0), 'buffer_time': 15},
+]
+
+with Session() as session:
+    for row in data:
+        my_data = MyData(start_time=row['start_time'], buffer_time=row['buffer_time'])
+        session.add(my_data)
+    session.commit()
+
+with Session() as session:
+    query = select([MyData.id, MyData.start_time, MyData.buffer_time])
+    result = session.execute(query)
+    rows = result.fetchall()
+
+    for row in rows:
+        id_, start_time, buffer_time = row
+        end_time = start_time + timedelta(minutes=buffer_time)
+        session.query(MyData).filter(MyData.id == id_).update({"end_time": end_time})
+
+    session.commit()
+
+with Session() as session:
+    query = select([MyData.start_time, MyData.end_time])
+    result = session.execute(query)
+    df = pd.DataFrame(result.fetchall(), columns=["start_time", "end_time"])
+
+df['start_time'] = pd.to_datetime(df['start_time'], utc=True).dt.strftime('%Y-%m-%d %H:%M:%S')
+df['end_time'] = pd.to_datetime(df['end_time'], utc=True).dt.strftime('%Y-%m-%d %H:%M:%S')
+
+print(df.to_string(index=False))
+
+
+
+
+
+
+