Which of the following is NOT a language element o

Which of the following is NOT a language element of SQL?

Explanation

Data mining is not part of SQL, data mining means to find the correct form of data.
SQL query is an inquiry to a database using the SELECT clause.
SQL clause refers to one "building block" of a query - SELECT clause, WHERE clause, FROM clause, etc.
SQL statements are used to perform actions over a database (such as update data, retrieve data, delete data, etc). It is a general notion of which query is a subpart.
SQL expression is a combination of one or more values, operators and SQL functions that evaluate to a value. They can be used to query the database for a specific set of data.

Theory

SQL Language elements
The SQL language is subdivided into several language elements, including:
- Clauses, which are constituent components of statements and queries.
- Expressions, which can produce either scalar values, or tables consisting of columns and rows of data
- Predicates, which specify conditions that can be evaluated to SQL three-valued logic(true/false/unknown) or Boolean truth values and are used to limit the effects of statements and queries, or to change program flow.
- Queries, which retrieve the data based on specific criteria
- Statements, which may have a persistent effect on schemata and data, or may control transactions, program flow, connections, sessions, or diagnostics.
- Insignificant whitespace is generally ignored in SQL statements and queries
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