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Active: Tag: subqueries ×

SQL & Databases Medium technical

Q1. What does the FROM clause do?

The **`FROM`** clause identifies the source table(s), views, joined tables, or subqueries from which data is to be retrieved, filtered, and aggregated. ### Logical SQL Pr...

2 Answer

SQL & Databases Medium technical

Q2. Subqueries can be nested in...

Subqueries can be nested within virtually every major SQL clause and statement: 1. **`WHERE` Clause**: Filtering candidate rows (`WHERE id IN (SELECT ...)`) 2. **`FROM` C...

2 Answer

SQL & Databases Easy technical

Q3. Row comparison operators with subqueries?

`IN`, `ANY`, `ALL`, `EXISTS`, `NOT EXISTS`, and standard comparison operators (`=`, `>`, `=`, ` ALL (SELECT salary FROM employees WHERE dept = 'Sales') WHERE salary > ANY...

1 Answer