Dynamic SQL lets you create a query string based off of user input. SQL Server allows you to create dynamic SQL statements. The statements use a SQL string varchar data type, then you execute the ...

Return the SQL only, do not include explanations.” The following function creates a query in that type of format, taking arguments for the data schema, sample rows, user query, and table name.

Read this SQL tutorial to learn when to use SELECT, JOIN, subselects and UNION to access multiple tables with a single statement.