Differentiate between a phrase and a clause.

In computer engineering, particularly in the context of programming languages and data parsing, **phrases** and **clauses** are used to describe different structures within code and data formats. Here’s how they differ in this context:

1. **Phrase**:

   - **Definition**: In computer engineering, a phrase often refers to a sequence of tokens or symbols that form a meaningful unit within a language but does not necessarily include all the elements needed to be a complete construct. 

   - **Example**: In programming languages, a phrase could be a part of a statement, like `int x =`, which is incomplete by itself but forms part of a declaration statement (`int x = 10;`).

   - **Function**: Phrases are often used to build larger constructs. They can be components of expressions, statements, or commands and are important in syntax analysis for understanding the structure of code.

2. **Clause**:

   - **Definition**: A clause in computer engineering refers to a more complete syntactic unit that contains both a subject and a predicate in programming constructs. It can be part of a larger statement or expression but represents a more self-contained unit of code.

   - **Example**: In SQL, a clause is a distinct part of a query, such as `SELECT`, `FROM`, or `WHERE`. For instance, `WHERE age > 30` is a clause within an SQL query that specifies a condition.

   - **Function**: Clauses are used to define and separate distinct components of statements or commands. They help in organizing code or queries into logical parts, making it easier to parse, understand, and execute.

**Summary**:

- **Phrases** in computer engineering are sequences of tokens or symbols that may form part of a larger construct but are not complete by themselves.

- **Clauses** are more complete units that often include both a subject and predicate and can be independent parts of larger statements or expressions. They help in structuring and organizing code or data formats.