title: Difference between time-series database and relational database
body: <p>I have read some concept about time-series database and some answers about the differences between these 2 but I can't still get my head around these differences.</p>
  
  <p>How data is written and stored to disk that make the differences between time-series database and rdbms?</p>
  
  <p>What are the best use cases for time-series database over rdbms and VICE VERSA?. I mean the cases that make the time-series database provide outstanding performance over rdbms, also I want to know the cases that rdbms is a more suitable choice than time-series database.</p>