Nested data example

1. What is a nested data?
2. What is nested data example?
3. What is nested data types?
4. What is nested data in SQL?

What is a nested data?

Nested data: When data are collected from multiple individuals in a group, the individual data are considered nested within that group. Ordinary least squares (OLS) regression: A statistical model used to describe the relationship between an array of variables (independent variables) and a dependent variable.

What is nested data example?

Nested data

Consider a hypothetical dataset containing information about pets and their toys. We could organize this information in two different tables (a pets table and a toys table). The toys table could contain a "Pet_ID" column that could be used to match each toy to the pet that owns it.

What is nested data types?

Nested data types are structured data types for some common data patterns. Nested data types support structs, arrays, and maps. Popular query engines such as Hive, Spark, Presto, and Redshift Spectrum support nested data types. The SQL syntax those engines support can be different.

What is nested data in SQL?

In relational databases, a nested table is a table that is embedded within another table. Individual elements can be inserted, updated, and deleted in a nested table.