The SQL statement is designed to query a table named QTests for records where the QTestId column matches a specific search condition defined by the CONTAINS keyword. Here's the explanation in a step-by-step manner within a SQL code block:

            

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            -- Select all columns from the table
SELECT * 
FROM QTests -- Specifies the table to query, which is 'QTests' in this case
WHERE 
  CONTAINS(QTestId, '18 ~ 14 ~ 10') 
  -- The WHERE clause filters the rows returned by the SELECT statement.
  -- CONTAINS is a predicate used in the WHERE clause to search for a specific 
  -- pattern in the columns of Full-Text Indexed tables.
  -- QTestId is the column being searched.
  -- '18 ~ 14 ~ 10' is the search condition. In this context, the tilde (~) 
  -- operator is used in full-text search queries in SQL Server to specify a 
  -- proximity search. However, the exact syntax and meaning can depend on the 
  -- configuration and version of SQL Server. Typically, you would expect a 
  -- proximity search to find records where the specified terms ('18', '14', '10') 
  -- are near each other within the specified column. But, the provided syntax 
  -- does not correctly follow the standard SQL Server full-text search syntax 
  -- for proximity searches, which usually involves the NEAR operator or specifying 
  -- distances between words.
  -- It's important to note that the exact behavior of this query might not 
  -- perform as expected due to the syntax '18 ~ 14 ~ 10'. For a typical proximity 
  -- search, you might need to revise the syntax to align with SQL Server's 
  -- full-text search capabilities.
          

Important Note: The syntax '18 ~ 14 ~ 10' does not conform to the standard SQL Server syntax for a proximity search or a typical CONTAINS search condition. In SQL Server, you would use the NEAR operator for proximity searches, specifying how close the terms should be to each other in the text. The correct approach to perform a proximity search or to include multiple terms in a CONTAINS query might look different, often involving the AND operator, the OR operator, or the NEAR operator for proximity. Always ensure to refer to the specific SQL Server documentation for the version you are using, as capabilities and syntax can vary.