A window is defined using the OVER() clause in SQL. Functions are predefined in SQL and you use them to perform operations on data.

We perform a similarity search on this vector using a SQL query. Similarity, or specifically cosine similarity, is a way to find the vectors in our database that are nearest to the vector query.

The above code snippet illustrates how to use a predicate to search objects by using particular values. Using predicates is comparable to using the WHERE clause in SQL.