BigQuery で JSON や配列データを操作する 2.5 のレビュー

Rawat Ashu · 2年以上前にレビュー済み

K Suraj · 2年以上前にレビュー済み

Hazarika Galib · 2年以上前にレビュー済み

Alfahreiza Yuandika · 2年以上前にレビュー済み

Bard Victor · 2年以上前にレビュー済み

There could be a little bit more time for this lab

Dembowiak Jacek · 2年以上前にレビュー済み

This lab need additional 30 mins for me

Koothaiyan Prabakaran · 2年以上前にレビュー済み

thirukovela pradeep · 2年以上前にレビュー済み

Bq Kulud · 2年以上前にレビュー済み

racingのデータセットの作成は、fruit_storeと同階層に作成する旨の記述が足りない。

Jirou Watanabe · 2年以上前にレビュー済み

DENIMAL Thomas · 2年以上前にレビュー済み

Vincent MARIN · 2年以上前にレビュー済み

Donavalli Nani · 2年以上前にレビュー済み

Rämö Jussi · 2年以上前にレビュー済み

Anbuvelan Arulkumaran · 2年以上前にレビュー済み

Kapoor Akarsh · 2年以上前にレビュー済み

Galea Zahid · 2年以上前にレビュー済み

Alshari Eissa · 2年以上前にレビュー済み

Mahale Vijay · 2年以上前にレビュー済み

This was probably the most engaging lab I've done so far, but it had some significant issues. I really liked the puzzles to create new queries, and I think other labs would strongly benefit from including more things like that. Step 2 of the subsection "Let's explore a dataset with STRUCTs" in "Task 5. Introduction to STRUCTs" is worded as though for an older version of BigQuery: "If it's not present already, click ADD DATA > Pin a project." it should instead say "If it's not present already, click ADD > Star a project by name" Step 3 of that subsection also has issues for this reason. In Task 5 step 8, counting the number of structs and arrays in a large schema feels like not-very-useful busywork and soured my impression of this lab. The Ctrl-F "total matches" count is unreliable (in Firefox at least) given how the Google Cloud console displays the schema information. Having to manually expand all the nested fields is also annoying. This was the longest part of the lab. In the same Task 5, the step "As you can imagine, there is an incredible amount of website session data stored for a modern ecommerce website. The main advantage of having 32 STRUCTs in a single table is it allows you to run queries like this one without having to do any JOINs:" doesn't make it clear that the query must be run to advance the lab. It should more explicitly address this. Task 8 contains an instruction to use the UNNEST() operator and a note saying "You will need to unpack both the struct and the array within the struct as data sources after your FROM clause" but this is contrary to the bigquery docs at https://cloud.google.com/bigquery/docs/arrays#flattening_arrays, which say "Note that for correlated cross joins the UNNEST operator is optional and the CROSS JOIN can be expressed as a comma cross join." In fact, most of the tasks of the lab don't require the use of UNNEST

Cameron Nicholas · 2年以上前にレビュー済み

Nasri Zied · 2年以上前にレビュー済み

Shi Xuan · 2年以上前にレビュー済み

Rivera López Karla Ilian · 2年以上前にレビュー済み

Martha Gaurav · 2年以上前にレビュー済み

Fernández Expósito Marisol · 2年以上前にレビュー済み