JOIN, UNION and subqueries. SEE: Take advantage of these quick SQL lessions with this certification bundle from TechRepublic Academy The most recent stand for SQL syntax is SQL:2016 ISO ...

For this example you create a view descriptor, VLIB.ALLEMP, based on SYBASE data. The outer PROC SQL query retrieves data from the view descriptor; the subquery uses a Pass-Through query to retrieve ...

The EXISTS condition is an operator whose right operand is a subquery ... in Joining Two Tables), the matching IDNUM in PROCLIB.PAYROLL is included in the output. Thus, the query returns all the ...