When a PROC SQL query contains subqueries or inline views, the innermost query is evaluated first. In this example, data is retrieved from the SYBASE EMPLOYEES table and returned to the subquery for ...

For example, you can use a subquery to find the average salary of employees in a department, and then compare it with the salaries of individual employees in the same department.

The following is an example of a subquery that returns one value. This PROC SQL step subsets the PROCLIB.PAYROLL table based on information in the PROCLIB.STAFF table.

I'm trying to assign rows in a table to a random variable entirely in Transact SQL (This is MS SQL Server 2000, sp3). I've got it working perfectly except I can't use a variable inside my subquery ...

The problem is that many database systems do not allow referencing a column alias from the inner query (average_salary) directly in the outer query's AVG function. This is because the database ...

Apache Spark - A unified analytics engine for large-scale data processing - spark/docs/sql-ref-syntax-qry-select-lateral-subquery.md at master · apache/spark ...