value in cases where there is already an ID supplied in the INSERT statement. So it would be more efficient to only assign a value when there was none in the INSERT: 4.4.2. Before Insert trigger, version

low. Single server process with a separate thread for each connection. Shared cache space. More efficient if the number of simultaneous connections grows. Permits fast, direct I/O to database files for

single process serves all connections, using threads to handle requests. Shared cache space. More efficient if the number of simultaneous connections grows. Permits fast, direct I/O to database files for

(comparison) || (concatenation) BETWEEN, IS [NOT] DISTINCT FROM, IN, ANY | SOME, ALL As an efficient alternative to concatenation, you can also use BLOB_APPEND(). Partial support: • An error occurs query. This is sometimes useful too. • Any column in the GROUP BY list. While legal, it is more efficient to filter on these non-aggregated data at an earlier stage: in the WHERE clause. • Any expression However, keeping encryption keys on the same disk as the database is an insecure option. For efficient separation of encryption and key access, the database encryption plugin data is divided into two

query. This is sometimes useful too. • Any column in the GROUP BY list. While legal, it is more efficient to filter on these non-aggregated data at an earlier stage: in the WHERE clause. • Any expression