Everyone has a pattern or writing style when it come to SQL I’ve noticed. Some people use uppercase for keywords other people don’t, some start a column on a new line others don’t, people format differently, leaving commas at the end of the line vs at the beginning and many more niche ways people write. […]
BACKGROUND Consider this post from stackoverflow. As seen above, Nesting of with clauses is not possible in oracle and while the examples in the answer are simple and straightforward allowing you to define multiple different subqueries, sometimes (and I know because I’ve been there) you actually need to or at least wish you would nest
Services or Service names in Oracle specify one or more names that clients can use to connect to an Oracle Database. It is a logical representation of a database. When an instance starts, it registers itself with the listener using one or more service names. They are a good way of separating various application connections
With the announcement of 26ai on premises, many people (myself included) using 19c will be looking to migrate their existing databases over to 26ai. As announced earlier, 19c is the last release in which the option to use a non-CDB is allowed; from 21c onwards, it’s mandatory to change your database architecture to multitenant. Therefore, anyone
Create a pluggable database(19c) from a non-container database. Read More »
