Samples from Spider 1 and Spider 2 for SQLite.

To have DBs locally for Spider 1 refer to the [Getting Started](https://yale-lily.github.io/spider) of the official website.
All queries here are tested in the databases in `test_database`.

To have DBs locally for Spider 2 refer to the [Quickstart](https://github.com/xlang-ai/Spider2/tree/main/spider2-lite) of the github page (the first point is enough)