BigQuery (a SQL database) Flashcards

(9 cards)

1
Q

Schema

A

Displays the column names in the dataset

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2
Q

Details

A

Contains metadata like the creation date of the dataset

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3
Q

Preview

A

Shows the first rows from the dataset

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4
Q

BigQuery

A

a data warehouse on the Google Cloud Platform used to query and filter large datasets, aggregate results, and perform complex operations.

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5
Q

SQL dialects

A

The different variations of SQL; vendors of SQL databases may use slightly different variations of SQL.

SQL platforms include, but are not limited to: SQLServer, MySQL, BigQuery, PostgreSQL, Vertica, etc.

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6
Q

SQL platforms

A

Where you write and run SQL queries.

SQL platforms include, but are not limited to: SQLServer, MySQL, BigQuery, PostgreSQL, Vertica, etc.

NOTE: Not all SQL platforms provide native script editors to write SQL code. SQL text editors give you an interface where you can write your queries in an easier and color-coded way.

*If your SQL platform doesn’t have color coding, you may want to use a text editor like Sublime Text. (You have color coding and can get rid of all incorrect indents at one time as opposed to going line by line, etc.)

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7
Q

Regular Expressions (regex)

A

Sequences of characters/a text string that will define a search pattern. They’re used to find, match, and manipulate text based on specific patterns rather than just exact matches.

For example, if you look for all email addresses in a text document, you might enter something like “.+\@.+..+”

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8
Q

Data analysts share their work in a variety of formats, such as _____________

A

Data analysts share their work in a variety of formats, such as pdfs, html files, and R Markdown notebooks

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9
Q
A
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