Read this SQL tutorial to learn when to use SELECT ... By default, the UNION statement will omit duplicates between the tables unless the UNION ALL keyword is used. If your column names don ...

The outer PROC SQL query retrieves data from the view descriptor ... create vlib.allemp view */ create vlib.allemp.view; select all; format empid 6.0 salary dollar12.2 jobcode 5.0 hiredate date9.

In part 1 of my SQL Server 2022 features series, you learned about the improvements to the cardinality estimator component of query optimization ... benefit nearly all SQL Server workloads.