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Ibis: creating columns, fixing bugs #302

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Nov 12, 2023
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Ibis: creating columns, fixing bugs #302

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484283c
working on ibis section: fixed bug from new ibis version
trevorcampbell Nov 12, 2023
9153b68
minor wordsmithing
trevorcampbell Nov 12, 2023
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6 changes: 3 additions & 3 deletions source/reading.md
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Expand Up @@ -676,7 +676,7 @@ canlang_table

Although it looks like we might have obtained the whole data frame from the database, we didn't!
It's a *reference*; the data is still stored only in the SQLite database. The `canlang_table` object
is an `AlchemyTable` (`ibis` is using `sqlalchemy` under the hood!), which, when printed, tells
is a `DatabaseTable`, which, when printed, tells
you which columns are available in the table. But unlike a usual `pandas` data frame,
we do not immediately know how many rows are in the table. In order to find out how many
rows there are, we have to send an SQL *query* (i.e., command) to the data base.
Expand Down Expand Up @@ -721,8 +721,8 @@ response for us. So `ibis` does all the hard work of translating from Python to
we can just stick with Python!

The `ibis` package provides lots of `pandas`-like tools for working with database tables.
For example, we can look at the first few rows of the table by using the `head` function---and
we won't forget to `execute` to see the result!
For example, we can look at the first few rows of the table by using the `head` function,
followed by `execute` to retrieve the response.

```{index} database; head, ibis;
```
Expand Down