Read this SQL tutorial to learn when to use SELECT, JOIN, subselects and UNION to access multiple tables with a single statement. It’s sometimes difficult to know which SQL syntax to use when ...

The DICTIONARY tables component is specified in the FROM clause of a SELECT statement. DICTIONARY is a reserved libref for use only in PROC SQL. Data from DICTIONARY tables are generated at run time.

Getting frustrated with my lack of SQL-foo ...<BR><BR>I want to update my 'main' table based on the query of an 'editor' table (a copy of the 'main' table with the additional field named delta which ...