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"no such table": "Check if the table exists. If not, use CREATE TABLE to create the table first.",
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"syntax error": "Check your SQL syntax. Ensure proper use of commas, quotes, and parentheses. For example, 'SELECT column FROM table' is correct.",
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"syntax error": "Check your SQL syntax. Ensure proper use of commas, quotes, and parentheses.",
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"unknown column": "Check if the column name exists in the table. You may have mistyped the column name.",
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"foreign key constraint failed": "Ensure the referenced key exists in the parent table. Ensure the data you're inserting is valid and matches the foreign key constraint.",
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"datatype mismatch": "Ensure that you are inserting the correct data type for each column. For example, you cannot insert a string into an integer column.",
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"column not found": "Check the column name spelling or verify if the column exists in the table schema.",
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"subquery returns more than one row": "Ensure that your subquery returns only one value. Consider using aggregation functions or limiting the result of the subquery.",
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"duplicate entry": "You are trying to insert a duplicate value into a column that has a unique constraint. Check for duplicates and try again.",
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"no such function": "You are trying to use a function that does not exist. Make sure the function is available in the database you're using.",
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"incorrect number of arguments": "Check the number of arguments for functions like COUNT(), SUM(), etc. Ensure you're passing the correct number of arguments for the function you're using."
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"foreign key constraint failed": "Ensure the referenced key exists in the parent table.",
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"datatype mismatch": "Ensure that you are inserting the correct data type for each column.",
# More advanced suggestions based on query types (SELECT, INSERT, etc.)
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if"select"inerror_message:
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console.print("[bold yellow]Advanced Suggestion:[/bold yellow] Ensure you are selecting columns that exist. Use DISTINCT for unique results.")
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console.print("[bold yellow]Best Practice:[/bold yellow] Always use aliases for tables and columns to avoid ambiguity, e.g., SELECT t.name FROM users t.")
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if"insert"inerror_message:
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console.print("[bold yellow]Advanced Suggestion:[/bold yellow] Make sure you're inserting values that match the column order and data types. If using named columns, verify column names.")
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console.print("[bold yellow]Best Practice:[/bold yellow] Use parameterized queries to prevent SQL injection attacks.")
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if"update"inerror_message:
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console.print("[bold yellow]Advanced Suggestion:[/bold yellow] Ensure that your WHERE clause is correctly defined to prevent updating all rows. Consider using LIMIT for safety.")
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if"delete"inerror_message:
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console.print("[bold yellow]Advanced Suggestion:[/bold yellow] Always double-check your WHERE clause to ensure you're deleting the right rows. Avoid using DELETE without WHERE in production.")
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# Suggestions for specific errors
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if"join"inerror_message:
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console.print("[bold yellow]Advanced Suggestion:[/bold yellow] If you're using JOINs, ensure that the tables you're joining are correctly referenced. Use table aliases for better readability.")
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if"group by"inerror_message:
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console.print("[bold yellow]Advanced Suggestion:[/bold yellow] If you're using GROUP BY, ensure you are using aggregate functions like COUNT, SUM, AVG, etc., for non-grouped columns.")
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if"having"inerror_message:
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console.print("[bold yellow]Advanced Suggestion:[/bold yellow] The HAVING clause is used to filter groups. If you're not using GROUP BY, consider using WHERE instead.")
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if"order by"inerror_message:
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console.print("[bold yellow]Advanced Suggestion:[/bold yellow] When using ORDER BY, ensure that the column you're sorting by exists in the SELECT statement or table.")
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# Provide a general suggestion for unknown errors
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ifnotany(keyinerror_messageforkeyinsuggestions):
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console.print("[bold yellow]General Suggestion:[/bold yellow] Please review your SQL syntax and make sure all tables and columns are properly referenced.")
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console.print("[bold yellow]Best Practice:[/bold yellow] Regularly use comments in your queries to describe what each part does for better clarity and maintenance.")
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console.print("[bold yellow]General Suggestion:[/bold yellow] Please review your SQL syntax and make sure all tables and columns are properly referenced.")
console.print("[green]1.[/green] How to create a table?")
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console.print("[green]2.[/green] How to retrieve data using SELECT?")
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console.print("[green]3.[/green] How to insert data into a table?")
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console.print("[green]4.[/green] How to fix 'Foreign Key constraint failed' error?")
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console.print("[green]5.[/green] How to perform JOINs?")
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console.print("[green]6.[/green] How to improve query performance?")
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faq_choice=Prompt.ask("Select a FAQ number or type 'exit' to return:", choices=["1", "2", "3", "4", "5", "6", "exit"])
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iffaq_choice=="1":
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console.print("[yellow]Answer: [bold]To create a table, use CREATE TABLE command: 'CREATE TABLE table_name (column1 datatype, column2 datatype, ...);'[/bold yellow]")
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eliffaq_choice=="2":
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console.print("[yellow]Answer: [bold]To retrieve data, use the SELECT statement: 'SELECT column1, column2 FROM table_name;'[/bold yellow]")
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eliffaq_choice=="3":
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console.print("[yellow]Answer: [bold]To insert data, use the INSERT INTO statement: 'INSERT INTO table_name (column1, column2) VALUES (value1, value2);'[/bold yellow]")
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eliffaq_choice=="4":
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console.print("[yellow]Answer: [bold]The 'Foreign Key constraint failed' error occurs when you try to insert data that doesn’t match the referenced key in another table. Ensure the referenced value exists.[/bold yellow]")
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eliffaq_choice=="5":
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console.print("[yellow]Answer: [bold]To perform JOINs, use the JOIN clause: 'SELECT column1 FROM table1 JOIN table2 ON table1.column = table2.column;'[/bold yellow]")
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eliffaq_choice=="6":
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console.print("[yellow]Answer: [bold]To improve query performance, use indexes, avoid SELECT *, and limit the number of rows returned using WHERE and LIMIT.[/bold yellow]")
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eliffaq_choice=="exit":
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user_dashboard()
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defuser_dashboard():
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"""Enhanced User Dashboard with progress bars and stylized menu"""
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print_header()
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# Display current progress level dynamically
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cursor.execute("SELECT level FROM users WHERE username=?", (USER,))
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