Error 1318: Incorrect number of arguments for PROCEDURE ComicHub.sp_createUser; expected 3, got 4

The error message "Error 1318: Incorrect number of arguments for PROCEDURE" indicates that there is a mismatch in the number of arguments provided when calling a stored procedure. In your case, the stored procedure ComicHub.sp_createUser expects three arguments, but you are providing four arguments when calling it.

To resolve this issue, you need to ensure that the number of arguments matches the stored procedure's definition. Here are the steps to fix the error:

1. Check the Stored Procedure Definition: Examine the stored procedure ComicHub.sp_createUser to confirm its parameter list. Make sure it indeed expects three parameters.

   For example, the stored procedure might look like this:

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   CREATE PROCEDURE ComicHub.sp_createUser (
       IN firstName VARCHAR(50),
       IN lastName VARCHAR(50),
       IN email VARCHAR(100)
   )
   BEGIN
       -- Stored procedure logic here
   END;
   

   In this example, the stored procedure expects three parameters: firstName, lastName, and email.

2. Adjust the Procedure Call: Make sure that when you call the stored procedure, you provide the correct number of arguments. If the stored procedure expects three arguments, ensure you pass exactly three arguments in the correct order.

   For example, if you are calling the stored procedure using MySQL's CALL statement, the correct syntax would be:

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   CALL ComicHub.sp_createUser('John', 'Doe', 'john@example.com');
   

   If you are calling the stored procedure from your application code (e.g., using PHP, Java, or any other language), ensure that your code passes exactly three arguments to the stored procedure call.

3. Check for Parameter Mismatches: If you are still encountering the error after ensuring that the number of arguments matches, double-check that there are no typos or mismatches in the parameter names between the stored procedure definition and the stored procedure call.

   For example, if the stored procedure definition has parameter names in uppercase (firstName, lastName, email), but your application code is passing them in lowercase (firstname, lastname, email), it will result in the same error.

By carefully inspecting the stored procedure definition and the procedure call, and ensuring that the correct number of arguments is provided in the correct order, you should be able to resolve the "Error 1318: Incorrect number of arguments for PROCEDURE" issue.