Read this SQL tutorial to learn when to use SELECT, JOIN, subselects and UNION to access multiple tables with a single statement. ... It returns a result set with columns from different tables.

i have a syslog collector setup to push all events from many processes into a database. taking one process, squid, i'm trying to put the Message column from the SystemEvents table into another ...

Basically, you’ll want to enable system-versioning for the source table to a history table which you’ve decided will be temporal. That being the case, you’ll need a couple additional columns of ...

As we saw in the last article, the SQL SELECT statement has the widest variety of query options, ... most databases will then sort by the first column in the table and work toward the right.

Tables, views, and queries may be blurred together. This facet is why a view may be described as simply a “named” query. As one composes SQL Select statements, the author may use another query in ...