The amount of data that MySQL can hold before having issues depends on various factors such as hardware specifications, configuration, query complexity, and indexing.
MySQL has a theoretical limit of 64 terabytes (TB) for individual databases, which can be extended by using multiple databases or by implementing data partitioning. However, the actual limit may be lower in practical scenarios due to hardware constraints, database design, and performance considerations.
It is also essential to optimize the database configuration, regularly maintain and tune the database, ensure efficient indexing, and manage the workload effectively to avoid performance issues or data limitations. Additionally, using features like replication, sharding, or clustering can help scale MySQL to handle larger volumes of data.