Advantages of a single table compared to relational databases like MySQL/MSSQL:

1. Simplicity: Storing data in a single table is simple and straightforward, making it easier to understand and work with the data.
2. No relationships: Since there are no relationships between tables in a single table database, there is no need to define and manage foreign key constraints.
3. Faster reads: Single table databases can be faster to read data from compared to relational databases, since there is no need to join tables or process relationships.

Disadvantages of a single table compared to relational databases like MySQL/MSSQL:

1. Limited scalability: Storing all data in a single table can result in a large, unwieldy table that is difficult to manage and maintain as the size of the data grows.
2. Data redundancy: With a single table, it is common to repeat data, leading to data redundancy and increased storage requirements.
3. Poor data organization: A single table does not provide a way to organize data into logical units, making it more difficult to manage and manipulate the data.
4. No relationships: The absence of relationships between tables makes it more difficult to enforce data integrity and relationships between data.
5. Query performance: Queries against a single table can become slow as the size of the data grows, since the entire table must be scanned to find the data needed.

In conclusion, while single table databases have some advantages, such as simplicity and faster reads, they also have several disadvantages, such as limited scalability, poor data organization, and slow query performance, that make them unsuitable for most applications. Relational databases, such as MySQL and MSSQL, provide a more scalable and flexible way to manage and organize data, making them the preferred choice for most applications.