A common SQL habit is to use SELECT * on a query ... For instance, if you insert data into a table and then use UPDATE to change it, like I’ve just shown, that’s two separate transactions.

You can update one or more rows of a table through a view, with some restrictions. See Updating PROC SQL and SAS/ACCESS Views. Any column that is not modified retains its original values, except in ...

If you only want to update values in table A when there are matching records in table B, then an inner join is the way to go. If you have calculations that need to vary based on optional data, the ...

When querying a database table, the result set is typically consistent with the current time, that is, at the time the query is executed. However, the ANSI SQL 2011 update to the standards specified ...