Omnidex does not support database transactions.

Omnidex does not support the relational ACID requirements (Atomicity, Consistency, Isolation and Durability).

Most Omnidex applications will place tens or hundreds of indexes on a table, and this makes online updates impractical.

Omnidex Bitmap indexes are not updated on INSERT, DELETE or UPDATE statements. Omnidex Bitmap indexes are used to improve queries that reference low-cardinality data, and are heavily used on tables containing millions of rows.

Omnidex Grids do not support INSERT, DELETE or UPDATE statements.

Omnidex Rollup Tables are not updated on INSERT, DELETE or UPDATE statements.

Omnidex Text Dictionaries are not updated on INSERT, DELETE or UPDATE statements.

Omnidex cannot use Cached Qualification Optimizations on tables when tables are updated using INSERT, DELETE or UPDATE statements.

Omnidex UPDATE statements do not allow SET commands to values other than literals or constants.