Update pages/3_Life cycle of ML.py

pages/3_Life cycle of ML.py

@@ -95,3 +95,117 @@ if selected_step:
 
 st.markdown("<hr>", unsafe_allow_html=True)
 
+elif st.session_state["current_page"] == "Data Collection":
+    st.title(":bar_chart: Data Collection")
+    st.write("### Overview")
+    st.write(
+        "Data gathering is the process of collecting relevant data to solve a specific problem or achieve an objective."
+    )
+    st.markdown("""
+    #### Types of Data:
+    - **🟢 Structured Data**: Organized data with a predefined schema, such as databases, Excel sheets.
+    - **🟠 Semi-Structured Data**: Data that doesn't conform strictly to a schema but has organizational tags, like JSON or XML.
+    - **🔴 Unstructured Data**: Unorganized data such as images, audio, and videos without a specific format.
+    """)
+
+    col1, col2, col3 = st.columns(3)
+    with col1:
+        if st.button("Structured Data"):
+            navigate_to("Structured Data")
+    with col2:
+        if st.button("Semi-Structured Data"):
+            navigate_to("Semi-Structured Data")
+    with col3:
+        if st.button("Unstructured Data"):
+            navigate_to("Unstructured Data")
+
+    # Back to Main button
+    if st.button("Back to Main"):
+        navigate_to("Main")
+
+elif st.session_state["current_page"] == "Structured Data":
+    st.title("🟢 Structured Data")
+    st.markdown("**Structured data** is highly organized and stored in a fixed format, making it easily searchable.")
+    st.markdown("### Examples of Structured Data")
+    st.markdown("""
+    - **Relational Databases**: Tables with rows and columns.
+    - **Spreadsheets**: Data stored in Excel format.
+    - **SQL Databases**: Structured query language (SQL) is used to manage and manipulate relational databases.
+    """)
+
+    st.markdown("### What is SQL?")
+    st.write("""
+    **SQL (Structured Query Language)** is a standardized programming language used to manage and manipulate relational databases.
+    It is the most widely used language for managing structured data, particularly in systems where data is stored in rows and columns.
+    """)
+
+    st.markdown("### Key Features of SQL:")
+    st.markdown("""
+    - **Data Querying**: Retrieve data from relational databases using the SELECT statement.
+    - **Data Manipulation**: Insert, update, and delete data in tables with the INSERT, UPDATE, and DELETE commands.
+    - **Data Definition**: Define and modify the structure of database tables (e.g., CREATE, ALTER).
+    - **Data Control**: Manage permissions and access to the database (e.g., GRANT, REVOKE).
+    """)
+
+    # Adding button for Excel and SQL data formats under Structured Data
+    col1, col2 = st.columns(2)
+    with col1:
+        if st.button("Excel"):
+            navigate_to("Excel Data Format")
+    with col2:
+        if st.button("SQL"):
+            navigate_to("SQL Data Format")
+
+    # Back to Types of Data button
+    if st.button("Back to Types of Data"):
+        navigate_to("Data Gathering")
+
+elif st.session_state["current_page"] == "Semi-Structured Data":
+    st.title("🟠 Semi-Structured Data")
+    st.write(
+        "Semi-structured data is partially organized and contains tags or markers to separate elements, but it does not adhere to a strict schema."
+    )
+    st.markdown("### Common Formats")
+    st.markdown("""
+    - **JSON**: Widely used for web APIs.
+    - **XML**: Common for document-based data.
+    - **CSV**: Commonly used for data storage with commas separating values (often used with JSON/XML for data interchange).
+    """)
+
+    # Adding buttons for JSON, XML, and CSV data formats under Semi-Structured Data
+    col1, col2, col3 = st.columns(3)
+    with col1:
+        if st.button("JSON"):
+            navigate_to("JSON Data Format")
+    with col2:
+        if st.button("XML"):
+            navigate_to("XML Data Format")
+    with col3:
+        if st.button("CSV"):
+            navigate_to("CSV Data Format")
+
+    # Back to Types of Data button
+    if st.button("Back to Types of Data"):
+        navigate_to("Data Gathering")
+
+elif st.session_state["current_page"] == "SQL Data Format":
+    st.title(":file_folder: SQL Data Format")
+    st.write("**SQL (Structured Query Language)** is used to query, update, and manage relational databases.")
+    st.markdown("### Common SQL Databases")
+    st.markdown("""
+    - **MySQL**: Open-source relational database management system.
+    - **PostgreSQL**: Advanced open-source relational database system.
+    - **SQLite**: Lightweight, file-based SQL database.
+    """)
+
+    st.markdown("### Example SQL Query")
+    st.code(
+        """sql
+SELECT * FROM customers WHERE age > 30;
+""",
+        language="sql",
+    )
+
+    # Back to Structured Data button
+    if st.button("Back to Structured Data"):
+        navigate_to("Structured Data")