Help me in solving GSQ06 problem

My issue

give code

My code

-- Inserting data into employee table
INSERT INTO employee (Id, Name, Age, Address)
VALUES (1, 'John Doe', 30, '123 Main St');

-- Output the entire table
SELECT * FROM employee;

Learning course: Database management systems
Problem Link: Debug this query in Database management systems

Your code for inserting data into the employee table and selecting all rows is generally correct, but here’s the full and improved version with additional details:


Full Code Example:

sql

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-- Step 1: Create the employee table (if not already created)
CREATE TABLE IF NOT EXISTS employee (
    Id INT PRIMARY KEY,
    Name VARCHAR(100),
    Age INT,
    Address VARCHAR(255)
);

-- Step 2: Insert data into the employee table
INSERT INTO employee (Id, Name, Age, Address)
VALUES (1, 'John Doe', 30, '123 Main St');

-- Step 3: Select and output all rows from the employee table
SELECT * FROM employee;

Explanation:

  1. Create Table (if not exists):
  • Ensure the employee table is created with the appropriate schema before inserting data. Use IF NOT EXISTS to avoid errors if the table already exists.
  1. Insert Data:
  • The INSERT INTO statement is used to add a row to the employee table.
  1. Select Data:
  • The SELECT * statement retrieves all columns and rows from the employee table.

Additional Notes:

  1. Error Prevention:
  • Make sure the Id value is unique to avoid primary key constraint violations.
  • If the employee table already has data, verify that the new insert does not duplicate Id values.
  1. Multiple Inserts:
  • To insert multiple rows, use:

sql

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INSERT INTO employee (Id, Name, Age, Address)
VALUES 
(2, 'Jane Smith', 28, '456 Elm St'),
(3, 'Alice Brown', 35, '789 Maple Ave');
  1. Output for Debugging:
  • Use SELECT * FROM employee; to verify that the data has been inserted correctly.

Let me know if you need further assistance! :blush: